AISIsplice User`s Manual
Contents
1. AlSIsplice V3 0 Analysis and Design Software for Bolted Splices of Steel Bridges Firas I Sheikh Ibrahim Ph D P E HDR Engineering Inc Pittsburgh PA American Iron and Steel Institute Washington DC e e splice steel org 2001 American Iron and Steel Institute All Rights Reserved AISIsplice V3 0 Software Manual I Acknowledgments The instrumental contribution of Genny E Pond a former graduate research assistant Department of Civil and Environmental Engineering Clarkson University Potsdam NY to the development of the first version of the software is appreciated The contributions of Camille Rubeiz PE and Douglas Raby of AISI Michael A Grubb PE of BSDI Ltd Professor Karl H Frank PE of the University of Texas at Austin Edward P Wasserman PE and Henry Pate of the Tennessee Department of Transportation Ralph Anderson PE and Richard Best Tim Armbrecht and Paul Johnson of the Illinois Department of Transportation William Rogers PE Robert Woodruff Christian Ray and Tom Koch of the North Carolina Department of Transportation Bob Lyon of HNTB Roger Eaton PE and Patti Ritchey of HDR Engineering Inc Pittsburgh PA are gratefully acknowledged The development of the software was funded by the AISI Transportation and Infrastructure Committee Notice This manual is to be used as guidance while using AISIsplice software In no case shall it be used as a substitute for competent profe2. 2 3 3 Strength Design Forces Service Limit State 2 4 1a For POSITIVE Moment 2 4 b For NEGATIVE Moment if applicable 2 4 2 For Shears 2 4 3 Service Design Forces SPLICE DESIGN 4 1 4 2 4 3 Top Flange Splice Design 4 1 1 Plate Design 4 1 2 Bolt Design 4 1 3 Block Shear Rupture Check if applicable Bottom Flange Splice Design 4 2 1 Plate Design 4 2 2 Bolt Design 4 2 3 Block Shear Rupture Check if applicable Web Splice Design 4 3 Bolt Design 4 3 2 Plate Design 4 3 3 Block Shear Rupture Check if applicable 5 SUMMARY PERFORMANCE RATIOS SPLICE DIMENSION SUMMARY FILLER SUMMARY if applicable Analysis Report Format I SPLICE ANALYSIS SUMMARY Top Flange Splice 2 Bottom Flange Splice 3 Web Splice 1 PROBLEM DEFINITION 2 DESIGN LIMIT STATES 2 1 During Construction 2 2 Fatigue Limit State 2 3 Strength Limit State 2 3 la For POSITIVE Moment 2 3 b For NEGATIVE Moment if applicable 2 3 2 For Shears 2 3 3 Strength Design Forces 2 4 Service Limit State 2 4 a For POSITIVE Moment 2 4 1b For NEGATIVE Moment if applicable 2 4 2 For Shears 2 4 3 Service Design Forces 3 SUMMARY OF AASHTO SPLICE DESIGN FORCES 4 SPLICE ANALYSIS 4 Top Flange Splice Analysis 4 1 1 Plate Analysis 4 1 2 Bolt Analysis 4 1 3 Spacing Limit Analysis 4 1 4 Block Shear Rupture Analysis if applicable 4 2 Bottom Flange Splice Analysis 4 2 1 Plate Analysis 4 2 2 Bolt Analysis 4 2 3 Sp
3. Before execution of the software it is recommended that the input file be saved If a new input file has not been saved before the Execute button is clicked the user will be prompted to save it The user will also be prompted to save the current input file before opening an existing file creating a new file or exiting the program AISIsplice V3 0 Software Manual 18 Exiting AlSIzplice When prompted click Yes to save the file as shown No to proceed without saving and Cancel to ignore the previous action Saving the Input File Ei E3 Save in E3 AlSlsplice amp Al ce Sal 31500 PS2 dat File name Save as Hype DAT Files dat Cancel Zz In order to save an input file one of two methods may be used The Save button may be clicked on any screen or Save Input File selected from the file menu In either case the Save As dialog box which is shown to the right appears The user may enter a new filename or update an existing file Select the appropriate directory folder file type and filename and then click the Save As dialog box s Save button 7 Execution of the Software After entering the required input values and after progressing through the applicable screen sequence execution of the software may be initiated by clicking the Execute button found at the bottom right of the screen in the usual location of the Next button Upon completion of the analysis or design the output g
4. Web Clearance Lightweight Concrete T Detade Reinforcing Steel Area E096 0 ag Reinforcing Steel Girder Clear Gap Centroid Location 82 5 C WebCenter Top Bottom Reinforcing Steel Fy 420 0 f Compressive Frafie Frequency Strength fc Average Daily Minimum Truck Traffic amp lab Thickness Clearance to nearest Web Humber of Lanes Available to Trucks Efective wig zl 1 C2 C 3ormore Haunch Depth 22mm AASHTO M154 A 325M Web Bolt Threads Faying I lo Excluded Included Surface spice Lacat Class C Near Interior Support Flange Bolt Threads l oe e m Elsewhere The Additional Properties screen enables the user to specify minimum clearances for design or number of splice plates for analysis alignment details traffic frequency and connection bolt properties The user also describes the reinforced concrete slab if composite design is chosen The user also specifies the span length and when applicable the splice location For additional information refer to the graphics and or tool tips Click Composite Design to utilize the slab s strength or Noncomposite Design to ignore it For composite designs with lightweight concrete click to place a check mark in the LWC box Enter zero for the value of Reinforcing Steel Area when the concrete slab s reinforcing steel is not utilized However when the bars are utilized in the resistance calculations enter a combined area and respecti
5. LRFD 1996 PennDOT DM4 Owner Pennsylvania Turnpike Commission Design Firm HDR Engineering Inc Pittsburgh Splice Designer Firas I Sheikh Ibrahim Ph D Designer Quote J received numerous positive feedback but I did not appreciate AISIsplice until I had to use it to design the splices for PTC Bridge B481 AISIsplice produced cost effective splices in a relatively short time The use of AISIsplice helped cut the cost of materials and design man hours 4 Bridge Name Project Type Bridge Type Number of Girders Girder Spacing Skew Angle Span Type Span Length Splice Location Design Specifications Owner Design Firm Splice Designer Designer Quote If you would like to be included in future AlSIsplice publications please fill in the items above and email them to AISI AISIsplice Software Manual 38
6. Plates M270 Br3459 Plates 1 14 x 500 x 620 mm 1 16 500 x 70 mm 2 10x 350 x 1580 mm 2 16 215 620 mm e 18x215x 770mm 2 Rows of 16 Bolts 4 Rows of 4 Bolts ce 5 Rows of 4 Bolts c 100 mm Spacing Fo mm Pitch 5 mm Pitch The Splice Analysis Summary screen includes all components of the Splice Design Summary screen with the exception of the Adjust Design button since an analysis is performed instead of design thus the Back button may be used The software also informs the user of any given spacing which does not satisfy the provisions of AASHTO 6 13 2 6 AISIsplice V3 0 Software Manual 21 8c Report Output AlSIsplice dr File Current File C Program Files 4lSleplice SG1_ 317500 P82 dat Help AISIsplice Analysis and Desiqn Software for Bolted Splices of Steel Bridges Version 3 0 Dr Firas I Sheikh Ibrahin FE HOR Engineering Inc 3 Gateway Center Pittsburgh PA l52zzz 1l1074 http www hdrinc comn ez 01l1 American Iron and Steel Institute PTC Bridge 481 8 for Gl 31500 P82 o7666 033 113 INPUT FILE NAME C Program Files AISIsplice Gl 31500 P8Z dat PUN DATE amp TIME Sunday Mar ll 2001 2 48 PM PROBLEM DEFINITION Analysis Type splice Design Unit Preference Metric 5I AASHTO Analysis Design Method 1993 AASHTO LEFD Span Type Continuous Span The report generated during the software execution can be viewed by clicking the View Report button on the graphical output screen Once the Report screen
7. This shows that the software can be used to utilize state specific load factors Load Factors Tab ZAlslsplice Ele Current File C Program Files AlSlsplice SG1_31500_P82 dat Help Default Values Load Resistance Bot Splice Load om Factors Factors Details Modifiers mums Fatigue Strength i DC Factor 0 30 DW Factor 150 065 Reset Defaults Strength IV DE factor 5d Access this tab to alter load factors for the construction fatigue service and strength limit states System defaults are taken from AASHTO 3 4 1 and 3 4 2 Maximum load factors must be greater than minimum load factors and less than 3 0 selected arbitrarily while minimum load factors may not be less than zero In order to conservatively neglect wearing surface loads which oppose the live load moment the user may elect to use a minimum wearing surface factor DW equal to zero AISIsplice V3 0 Software Manual 25 Resistance Factors Tab AlSlsplice Madifiers Minimums Click this tab in order to modify resistance factors such as those for tensile gross section yielding plate bearing block shear etc given by AASHTO 6 5 4 2 Resistance factors which are less than 0 50 or greater than 1 0 will not be accepted by the software AISIsplice V3 0 Software Manual 26 Bolt Details Tab Fl mu File Current File C Program Files SlspliceSSG1 31500 Pa2 dat Help Default Valu
8. flange is not embedded in the concrete slab the flanges are parallel and are not skewed at the location of the splice Adequate clearance must be provided between splice plates and fillets of rolled beams or welds of plate girders Bolt patterns are limited to constant pitch non staggered bolt patterns When thick flange fillers are used it may be necessary to increase the number of bolts required to develop or extend the filler as per AASHTO 60 13 6 1 5 Therefore it 1s possible that the number of flange bolts required on one side of the centerline 1s greater than the number required on the other side Because this software is limited to symmetric splice designs the larger number of required bolts is used for both sides of the gap It is recommended that the user use a non symmetric cost effective splice However the user is cautioned that the lesser number of bolts does not necessarily satisfy all other design criteria 1 e slip resistance bearing resistance block shear rupture etc and therefore must be checked AISIsplice Software Manual 35 Appendix E References l American Association of State Highway and Transportation Officials LRFD Bridge Design Specifications 1999 Interim Washington DC 1999 American Association of State Highway and Transportation Officials LRFD Bridge Design Specifications Second Edition Washington DC 1998 American Institute of Steel Construction A SC Database Version
9. is displayed the user may use the scrollbar on the right of the Report screen to easily view and navigate through the report To save the report click the Save Report button on the screen or select Save Report from the file menu Then follow the procedure given in section 5 When naming an output file do NOT use the same extension of the input files to avoid overwriting the input file The report may be opened with any text editing program By clicking the Print Report button the report will be printed by sending it to the default printer Likewise the report may also be printed using any text editing program The format of the report will vary slightly depending on whether a capacity check or design is performed refer to Appendix B for report outlines AISIsplice V3 0 Software Manual 22 9 Exiting the Software AlSIsplice lel File Curent File C Program Files 4lSleplice SG1_ 31500 Pe2 dat Help HEW pen Erisinan tie 22mm AASHTO M164 BOLTS A 325HM X Flanges Faying Surface Claes B Save Input File Chl 5 vohis p Gave Hepa Io nur Sector fur Fin 15 spaces m 100 mm E xit PERFORMANCE RATIOS AE 0K mm i Tap Flange Balts Top Flange Flates 2 Bottom Flange Balts 0 90 Bottom Flange Plates 0 96 Web Balts 1 00 Web Plates D 74 Mittin IRI
10. 2 0 Metric and English Units Chicago IL 1994 American Institute of Steel Construction LRFD Manual of Steel Construction Volumes I and II Chicago IL 1994 Sheikh Ibrahim Firas I and Frank Karl H The Ultimate Strength of Symmetric Beam Bolted Splices AISC Engineering Journal Third Quarter 1998 pp 106 118 Sheikh Ibrahim Firas I and Frank Karl H The Ultimate Strength of Unsymmetric Beam Bolted Splices AISC Engineering Journal Second Quarter 2001 1n print Sheikh Ibrahim Firas L and Frank Karl H Bolted Field Splices for Steel Bridges ASCE Proceedings of Structures Congress XIV Volume 1 Chicago IL April 1996 pp 290 297 AISIsplice Software Manual 36 Appendix F Sample of Bridge Splices Designed By AISIsplice 1 Bridge Name PTC Bridge B438 Somerset County Pennsylvania Project Type Bridge Replacement New Construction Bridge Type Composite Slab on I Steel Girder Bridge Number of Girders 5 Girder Spacing 2 7 m Skew Angle 45 00 Degrees Span Type Simple Span Span Length 56 40 m Splice Location 14 52 m Design Specifications 1999 AASHTO LRFD 1996 PennDOT DM4 Owner Pennsylvania Turnpike Commission Design Firm HDR Engineering Inc Pittsburgh Splice Designer Jason A Fuller P E Designer Quote The amount of man hours saved by using AISIsplice was incredible but in addition to that the aggravation of redoing a splice over and over again by hand to make it eff
11. 5 The software uses a default value of 6 in 150 mm for the lateral distance between the flange bolts closest to the web lying on each side of the web This generous value which can be altered by the user as needed is used in the design mode to allow for easy construction Finally the default values section allows the user to require the flange splice plates to have as a minimum the area of the smaller connected flange AISIsplice V3 0 Software Manual 28 Load Modifiers Tab EHE Eie Curent File C Program Files lSlsplice G1_31500_P92 dat Help Default Values Minimums Splice Details Haduridenc F actor tm Importance Factor Reset Defaults The value for the load modifier is dependent on factors relating to component and connection ductility member redundancy and operational importance of the bridge The software default value for any load modifier is 1 0 The factors for ductility redundancy and importance are determined by the guidelines set forth in AASHTO 1 3 3 1 3 4 and 1 3 5 respectively AISIsplice V3 0 Software Manual 29 Minimums Tab Fz AISisplice File Current File C Program F lles AlSIsplicesSG1_31500_P82 dat Help Default Values Load Resistance Bolt Splice Load Factors Factors Detaile Details Modifiers Flexure Shear Design Minimum Design Stress for the Controlling 2 07SaqgRy 613614c 1 Reset Defaults web and Noncontrolling Flange St
12. 5 rows of 4 75 mm 150 mm 40 mm Adjust Design Top Flange Splice Bottom Flange Splice Web Splice M20 Grado Plates Mari Groth Plates M270 Grady Plates Back View 1 14 x 500 x 620 mm 1 15 x 500 x 770 mm 2 10 350 x 1580 mm E Report E 2 16 215 620 mm 2 18 x 215 770mm 2 Rows of 16 Bolts 4 Rows of 4 Bolts cei 5 Rowe of 4 Bolts ce 100 mm Spacing Print 75 mm Fitch fa mm Pitch Splice There are several methods to exit the software From any screen the user may click the Exit button at the bottom of the screen or select Exit from the file menu The user may also click the close button in the upper right corner of the program s window The user will be prompted to save the current input file before the program closes To avoid having problems losing data or corrupting input files always exit the software by one of these three methods 10 Review of Computer Output Since the user assumes all liabilities he she user should review the computer output carefully and thoroughly to verify the analysis and design performed by the software The first section of the report lists all given input values and should be reviewed by the user in order to verify the accuracy of the entered input used by the software If the problem definition contains erroneous input values then succeeding calculations and conclusions are invalid At each limit state the flange design forces are calculated and written to the report These values
13. HTO LRFD Bridge Design Specifications Second Edition 1998 including the 1999 interim In the design mode the software sizes and optimizes the splice plates and bolts In the analysis mode the software determines the adequacy of given splice plates and bolts For both modes performance ratios load resistance for all splice components are determined 2 Software Installation AISIsplice runs under Microsoft Windows95 NT or higher on IBM compatible personal computers A free hard disk space of 8 MB is recommended along with a minimum of 8 MB memory 16 MB preferred EGA VGA or a high resolution color graphics board and mouse are required Small fonts should be selected for the computer s display font size Setting A SIsplice should be installed and run from the hard drive for efficient operation To install AISIsplice on the hard drive 1 Insert CD in the CD ROM drive It is assumed that the D drive will be used If another drive is used instead substitute the appropriate letter in Step 3 2 Click Start on the Windows taskbar and choose Run 3 Type D SETUP in the text box and click OK 4 Follow the instructions in each succeeding window until the installation is completed then click Finish AISIsplice will automatically appear in the Programs menu and can be used to access the software as described subsequently To access the software easily you may wish to create a Shortcut AISIsplice Icon and drag it to the de
14. aces or surfaces with Class B coatings should be designed and analyzed using a class B faying surface to obtain cost effective splices Whenever possible opt to have the bolt threads excluded from the shear planes in the flange and web splices When bearing controls the design of the web bolts increase the edge distance slightly to increase the bearing resistance and thus avoid using additional web bolts Since bolted splices are expensive to fabricate make the use of all field splices optional to give the fabricator the option of selecting a least cost alternative AISIsplice V3 0 Software Manual 24 Appendix A Default Values The Default Values screen allows the user to view all and alter some of the AASHTO load factors resistance factors bolt and splice details load modifiers and minimum design loads This is an optional portion of any analysis or design progression and will not be shown unless the View Defaults box is checked on the Welcome Screen Click the appropriate tab in order to change any of the default values used for current input file calculations The Reset Defaults button in the Default Values screen allows the user to set all default values to their initial software preset values after having been altered The Example SG1 31500 P82 dat input file uses altered default values and will be shown in this section The load factors used in the example are those of 1996 PennDOT s DM4 for the P82 permit vehicle
15. acing Limit Analysis 4 2 4 Block Shear Rupture Analysis if applicable 4 3 Web Splice Analysis 4 3 1 Bolt Analysis 4 3 2 Plate Analysis 4 3 3 Spacing Limit Analysis 4 3 4 Block Shear Rupture Analysis if applicable 5 SUMMARY PERFORMANCE RATIOS FILLER SUMMARY if applicable AISIsplice V3 0 Software Manual 33 Appendix C Block Shear Rupture Paths Outer Flange Splice Plate Paths im Path 1 Path 2a Path 2b LEA Pe Path 5a Path 5b Path Inner Flange Splice Plate Paths Girder Flange Paths Path 6 Left Girder Path 8 Left Girder Path 7 Right Girder Path 9 Right Girder Web Splice Plate Paths an es Path 4 Left Girder Path 5 Right Girder Path 2 Path 3 Girder Web Paths AISIsplice Software Manual 34 Appendix D Software Limitations Al SIsplice designs and analyzes bolted steel girder splices Designs are limited to three splice plates for each connected flange and two splice plates for the web connection Analyses must have two web connection splice plates of the same thickness and one or three flange splice plates per flange Splices must be symmetric about the gap centerline for any given component i e the top flange left girder section of the splice is identical to the top flange right girder section Web splices are centered about the center of the web The software is limited to splices of straight right homogeneous steel I girders of which the top
16. are not accepted for simple span bridges If the SI units system is chosen moments and shears should be given in KN m and kN respectively These values should be given in k ft and kips if the US units system is chosen When finished click the Next button 5c Girder Properties Input Screen J AlSisplice Fes File Current File C Program Filesss amp lSlsplicess 1 317500 Pee dat Help Girder Properties Left Girder Right Girder m erica Sander Tepe Santor 7 pe Plate Girder t Rolled Beam i Plate Girder Rolled Beam Flange Sees M2706345w M270 Gr345 M270 Gr45 50 500 0 nm 20 E 000 E MN 40 1750 0 MES 14269 KN rh The Girder Properties screen allows the user to enter the dimensions material properties and shear strengths of the two adjoined girders Select either Rolled Beams or Plate Girders Click to place or remove the check mark in the Identical to Left Girder box right girder properties are filled automatically if checked Refer to the cross section graphic for clarification on selected items Enter each girder s nominal shear resistance as per AASHTO 6 10 7 Click Next to continue AISIsplice V3 0 Software Manual 16 5d Additional Properties Input Screen AlSIsplice PI File Current File C Program Filesss amp lSIsplicess 1 317500 Pee dat Help Additional Properties Aina Coparaeeces Fegvarced Concrele SAM Assembly Clearance fi 40 0 M Composite Moncomposite
17. creen will also appear every time you run the software Note that this screen informs you of the duration of your remaining license While the License Flash screen is visible you can activate the License Configuration screen by hitting the Enter button on your keyboard rf I B AISIsplice 365 days left out of 365 Press lt Enter gt to configure your license AISIsplice V3 0 Software Manual 7 4 Starting the Program To start AlSIsplice click Start on the Windows taskbar point to Programs folder then AlSIsplice folder it is assumed herein that the default folder was not altered during the installation of the software and then click AISIsplice The software will open the Welcome Screen If a shortcut was created on the desktop double click the shortcut icon and the software will open the Welcome Screen ats Compaq Support DE MEOS New Office Document T ue Remote cS ea m 7 iS suas Utilities cepere e Windows Update ie Tyak ey aoe E 52 21 3 gt fz G ypKey SDK v5 5 i Winzip ra CrpKey Stealth v2 09 inemertiploes HTML Help workshop QUSE HUS B lameus i ones a Outlook Espress E Iomega ZiptD iai B cue tie Programs if Medical Library CONES A Microsoft Developer Network Eaves amp Microsoft Office Tools z Documents Microsoft Visual Basic 6 0 7 fct amp Microsoft Visual SourceSafe y Settings ea Online Services EE Priority Travelworks Ej StartUp si
18. current input file Save Report allows saving the output report created during program execution only available from output screens Exit allows the user to quit the program AISIsplice V3 0 Software Manual 9 Current File bar lSlsplice Biel ES File Current File C Program Files AlSlsplice SG1_31500_P82 dat Help Welcome to AlSIsplice Input File Existing v View Defaults Splice Capacity Check US Met 1 r Sean Tepe C Simple Continuous This Current File bar informs the user of the path filename of the current input file AISIsplice V3 0 Software Manual 10 Help menu FEET JoL File Curent File C Program Files AlSlsplices5G1_31500_P82 dat Help User Manual Internet Explorer required Welcome to AlSlsplice About AlSlsplice Esisting F View Defaults Splice Capacity Check US Met SI C Simple Continuous Two options are available from within the Help menu User Manual and About AISIsplice options AISIsplice V3 0 Software Manual 11 User Manual LE AlSi splice Software Manual Microsoft Internet Explorer provided by AT amp T WorldNet Service File Edit View Favorites Tools Help Back Forvard Stop Refresh Home Search Favorites History Mail AlSIsplice V3 0 Analysis and Design Software for Bolted Splices of Steel Bridges 49 The User Manual menu option enables you to view the User Ma
19. djust Design E r m Top Flange Splice Bottom Flange Splice Web Splice M270 Gr345w Plates M270 Gr345w Plates M270 Gr345w Plates 1 14 x 500 x 620 mm 1 15 x 500 x 770 mm 2 10 x 350 x 1580 mm 2 16 215 620 mm 2 18x 215 770mm 2 Rows of 16 Bolts 4 Rows of 4 Bolts c 5 Rows of 4 Bolts c 100 mm Spacing 75 mm Pitch fo mm Pitch When designing a splice the Splice Design Summary screen appears This screen contains graphical output of splice details required filler plates and their locations girder cross sections and elevation views properties of the flange and web connection bolts faying surface class and performance ratios If the two adjoined girders are different in size the left girder cross section will be visible by default However by clicking the Show Right button on the right of the screen the right girder will be displayed Generated performance ratios for each splice component are based on the ratio of factored load to the available factored resistance A performance ratio exceeding unity indicates a violation of the 1999 AASHTO LRFD Specifications and thus compels the user to adjust the splice properties accordingly i e thicken splice plates add more bolts etc Due to the improbability of block shear rupture modes controlling the design their performance ratios are shown on this screen only when their values exceed unity AISIsplice V3 0 Software Manual 20 The user may print the graphics and give
20. es Load Resistance Bot Splice Load 4 Factors Factors Details Details j Modifiers TREES Physical Bolt Hole Clearances to be used for Reset Defaults lt Back Next gt The Bolt Details tab shows the user the bolt hole clearances used shown only for the SI units system AISIsplice V3 0 Software Manual 27 Splice Details Tab Eie Current File C Program Files AlSlspice S 1_31500_P62dat_ Hel Default Values Load iif TEE Bolt T Splice r Load Minim Factors Factors Details Details Modifiers Minimums Mi inimum Humber of Longitudinal B olt Rows B Give with respect to the In the Web b e longitudinal direction In the Flanges JE gt ez For example a Tight NE v dere are 2 rows Flange Inner Outer Splice Plate Areas Maximum Variation to allow f n double shear on bolts Minimum lateral spacing of 150 flan ge bolts across the web m Total splice area shall not be less than the area of the smaller cont el ted flange Click the Splice Details tab to set minimum limits on the number of required longitudinal flange and web bolt rows the software will not accept values less than 2 In order to eliminate the effects of eccentric connections the maximum variation between the areas of the inner and outer flange splices is limited to 10 as specified in AASHTO C6 13 6 1 4c However the user may opt to reduce this percentage to as low as
21. esigned to resist the total design moment and the web splice to resist only the eccentric shear which is applied at the centerline of the splice Even though the two aforementioned approaches were found acceptable from a resistance standpoint Sheikh Ibrahim and Frank recommended that the second approach be followed to yield the most cost effective splices In a step towards obtaining cost effective splices AASHTO adopted the first approach as the primary design method since a similar approach has been used in bridge design practice and has been incorporated in AASHTO for quite a long time Therefore AASHTO developed their 99 Interim such as to illustrate the first design methodology in sufficient details and briefly touch on the second approach as an alternate method Since significant changes have been incorporated in AASHTO the AISIsplice software was developed to help designers understand the new design methodology and produce cost effective splices The software in its current version is limited to the first design approach mentioned above but it is anticipated that it will incorporate the second design approach in the near future e BIT OT RI RE SE I TOTP POE TF nT RI Firas I Sheikh Ibrahim PhD PE AISIsplice V3 0 Software Manual 4 I Scope of Software AISIsplice is a tool for the analysis and design of bolted field splices for straight right F shaped steel girders The analysis and design process is based on the AAS
22. icient and cost effective was eliminated Once we had a viable solution by the program it was verified by hand and the program was dead 99 On 2 Bridge Name Rocky Hollow Bridge Somerset County West Virginia Project Type Bridge Rehabilitation Bridge Type Composite Slab on Steel Rolled Beam Girder Bridge Number of Girders 4 dual structures Girder Spacing 9 0 Skew Angle 16 00 Degrees Span Type 4 Continuous Spans Span Length 40 ft 56 ft 84 ft 62 ft Splice Location 16 ft back from Pier 2 18 ft back from Pier 3 Design Specifications 1999 AASHTO LRFD Owner West Virginia Department of Transportation Division of Highways Design Firm HDR Engineering Inc Pittsburgh Splice Designer Jason A Fuller P E Designer Quote A SIsplice simplified the checking of the existing splices and the design of a continuity splice Once all the input values were calculated which would be required to do for hand calculations also it took minutes to run the program instead of hours to do the calculations AISIsplice Software Manual 37 3 Bridge Name PTC Bridge B481 Somerset County Pennsylvania Project Type Bridge Replacement New Construction Bridge Type Composite Slab on I Steel Girder Bridge Number of Girders 5 Girder Spacing 2 7 m Skew Angle 69 52 Degrees Span Type 2 Continuous Spans Span Length 49 16 m 49 16 m Splice Location 31 5 m 66 8 m Design Specifications 1999 AASHTO
23. n properties by clicking the Print Splice button at the bottom of the screen The report text shown in 7c may be viewed by clicking the View Report button A useful feature of AlSIsplice is the Adjust Design button After a splice design is generated by the software the user may modify the design to his her preference When this button is clicked all properties of the designed splice are loaded into the Splice Analysis screen as shown in section 4e and the mode is changed from design to capacity check The user is sent to the Splice Analysis screen to change selected properties of the splice When the user selects the Execute button at the bottom of the Splice Analysis screen the splice will be analyzed and the Splice Analysis Summary screen will appear shown in section 7b 8b Splice Analysis Summary Graphics 2 AlSIsplice mfe File Curent File C Program Filesss amp lSlsplicess 1 37500 Pee dat Help Splice Analysis Summary 22mm AASHTO M164 BOLTS 4 rows of 4 0 3 mm A 325H xX Flanges enn yn py III LII A325M X Web Faying Surface Class B EO Cnr Sector PERFORMANCE RATIOS Abe LK Tabip Top Flange Balts igi m CORE Eee tuer i i Lee ottom Flange Balls Bottom Flange Plates 0 96 15 Mn Web Bolts ocea 1 00 i TOU mm Web Flates LU 4 l o dCi iiSi TL LII 5 rows of 4 75 mm Top Flange Splice Bottom Flange Splice Web Splice M270 Gr345w Plates M270 Gr345w
24. nnsylvania Turnpike in Somerset County Pennsylvania To open SGI 31500 P 2 dat click the Existing option When asked to save the current file click No When the Open dialog box appears click the file named SG1 31500 P82 dat making sure the appropriate directory is accessed and then click Open After SGI 31500 P82 dat is opened the Welcome screen will look like the one shown above When you are ready click Next to continue 5b Loading Input Screen AlSIsplice xii File Current File C Program Files AlSlsplice sG1_ 31500 Pee dat Help Loading AASHTO LRFD Distributed Untactored Loads Moment Ghear at the Splice Centerline kM m EN EE ESA ary znan 255 0 Due fa Dead oad fram Deck Casting ar PICIU DECK 2439 68 30 408 Due fa Supenmposed Additional Dead Load iiie Due fo fe Future WOJ Surfaee LOH 0 0222 2222 2 Due fa Positve Live f aad Sitting dmpact dite f 3608 0 153 0 Due fo Negative Live iodd CAG Apa naano tives 462 0 470 0 Pasitive Fatigue aad include 152 denamic foad atlowancel LL 312 0 43 0 Negative Fatigue Load finchkrde 15 demam load allaeancel 0 if f 103 0 118 0 Moment Save Exit AISIsplice V3 0 Software Manual 15 The Loading screen enables the user to enter the unfactored moments and shears that are applied at the centerline of the splice The positive convention is denoted on the elevation eraphic Negative moments
25. nual from within AlISIsplice At this time the online User Manual can be viewed using Internet Explorer only If you have problem with your Internet browser or have a different browser you can view the User Manual using Word The User Manual is named Manual doc and is placed in your program directory and on the distribution CDROM AISIsplice V3 0 Software Manual 12 About AISIsplice About AlSIsplice The About AISIsplice screen contains information about AISIsplice along with hyperlinks to AASHTO RCSC and AISI web pages AISIsplice V3 0 Software Manual 13 5a Welcome Screen Current File C Program Fiies AlSlspice S 1_31500_P82 dat_ Help welcome to AlSIsplice cedet pum C New Existing de View Defaults Analysis Options __ Siow BRE C Customary US Metric SI 4 Simple Continuous The Welcome screen prompts the user to create open and revise an input file This is the starting point for any design or analysis It has the following options New click to create a new input file Existing click to revise an existing input file If you already have an existing input file open and wish to open a different one double click on this option Splice Design click to have the software design a splice for the given loading and girder properties Splice Capacity Check click to have the software check the adequacy of a given splice for given loading and girder properties C
26. pco ADU DP MA Cop DI E LENT 23 I0 REVIEW of Computer OWUWIDUI xdi dd aedes E vaga P dm UD N 23 11 Suggestions for Maximum Economy and Performance esses 24 Appendia Dault Vales oann tu Du etd i pen D Ue Odes Dunk T RE 25 Appendix B Report OUIWI S axe cori be bk o RR E ER Rau ibo ax eue ed a np bubus dues 33 Appendix DIOC Shear Rupture Patis sconti n tet vie ae ke iub hee utu ele doe ted 34 Append i D Software LIUTON S ese aea E eti M s ORI d 35 Appendis E Referees uem Oa UR e utum vpn uas ad ipm Mises ue uti 36 Appendix F Sample of Bridge Splices Designed By AISIsplice cesses 37 AISIsplice V3 0 Software Manual 3 Forward In 1999 the American Association of State Highway and Transportation Officials AASHTO adopted a new methodology for the design of bolted field splices of flexural steel members The new methodology was developed in response to the lack of a uniform design methodology for bolted splices which resulted in confusion and costly splices The new methodology was based on the analytical and experimental research program conducted by Firas I Sheikh Ibrahim and Karl Frank 1996 1998 2001 at the University of Texas at Austin In the new methodology two approaches for splice designs were justified In the first one the web is designed to resist its share of the moment and the flange splices to resist the moment not resisted by the web In the second approach the flange splices are d
27. raphic screen appears shown in section 7a If either girder is determined inadequate to sustain the given construction fatigue strength or service loads the program will terminate A warning including information as to the nature of the inadequacy will be given If the user feels this warning message was reached in error the generated output report written to the point of termination can be viewed and may contain additional helpful information AISIsplice V3 0 Software Manual 19 8 Software Output The software output consists of scaled graphics and a detailed report Graphic illustrations include the elevation and cross section views of the splice and adjoined girders Graphical output includes splice dimensions bolt details a summary of required filler plates and splice component performance ratios 8a Splice Design Summary Graphics AlSlsplice File Current File C Program Files4 Sleplice SG1 31500 Pee dat Help Splice Design Summary 22mm AASHTO M164 BOLTS 4 rows of 4 0 3 mm A 325H X Flanges TERES ENT ERU ER HH EET ERE RETI EESEEEREEEEN A329M X Web EE Faying Surface Class B EO Cnr Sector PERFORMANCE RATIOS ABE LK Ru Top Flange Bolts agit E CORE Bons Rieti i i Le ottom Flange Balls Bottom Flange Plates 0 96 15 3B Web Bolts 1 00 amp TOU mm Web Plates D 4 ae d ERST ER ES E CR ESI ERE ERE IRR 5 rows of 4 75 mm 150 mm 40 mm A
28. resses are increased by the ratio Fef to F cf Fr AISisplice File Current File C Program F lles AlSIsplice SG1_31500_P82 dat Help D efault Yalues Load Resistance Bolt Splice Load Factors Factors Details Details Modifiers Flexural Design i Shear D Minimum Design Shear V iw If V 0 5V then Vae l5V 61361451 Reset Defaults otherwise Va EV Var 6 13 6 1 4b p AISIsplice V3 0 Software Manual 30 In order to comply with AASHTO 6 13 6 1 4c and 6 13 6 1 4b flexural and shear design minimums should be used to further proportion flange and web design forces The software applies flexural and shear design minimums with respect to the 1999 Interim to the AASHTO LRFD Specifications Flexural minimums are applied to the girder referred to as the critical girder with the least non composite moment of inertia of the two adjoined girders Shear minimums are applied to the girder having the smaller shear resistance The critical girder is used to determine section properties as well as design stresses AISIsplice V3 0 Software Manual 31 Appendix B Report Outlines Design Report Format 1 PROBLEM DEFINITION 2 DESIGN LIMIT STATES 3 4 2 4 22 2 5 2 4 SUMMARY OF AASHTO SPLICE DESIGN FORCES During Construction Fatigue Limit State Strength Limit State 2 3 la For POSITIVE Moment 2 3 b For NEGATIVE Moment if applicable 2 3 2 For Shears
29. s amp STYVBGCTK Eind i Shut Down e e Microso Rees Windows98 tart f Manual doc Microsoft 5 Software Input When AJISIsplice is opened the Welcome screen will appear AlSIsplice was designed using a Wizard approach Input Screens are sequentially ordered and the user is allowed to move forward and backward from each screen by clicking the Next and Back buttons respectively When the information is completely entered for a given screen the user should click the Next button The user will either be allowed to progress to the next screen or will AISIsplice V3 0 Software Manual 8 be directed to enter incomplete or fix inaccurate input values The Back button may be clicked at any time to revise previously entered values The wizard approach was used to minimize the use of menu systems However a minimal menu system is provided including the following File menu AlSlsplice Ele Current File New Help Open Existing Ctl 0 O Savel Fie DS Existing qv View Defaults Exit fin Splice Capacity Check Customary US Cc Metric SI 8 Simple Continuous The File menu includes the following options New allows the user to create a new input file Open Existing allows the user to open and revise a previously saved input file Restart allows the user to return to the Welcome Screen at any time Save Input File allows saving the
30. should be reviewed by the user to insure that the flange resistance is not exceeded Although flange stresses are checked by the software it is important for the designer to know the efficiency of each component Also the user should review the report section titled 3 AISIsplice V3 0 Software Manual 23 SUMMARY OF AASHTO DESIGN FORCES This section gives all limit state design forces which are used to determine the required strength of a splice 11 Suggestions for Maximum Economy and Performance Several steps may be taken to reduce the cost of a splice When using AlSIsplice in the design mode utilize the Adjust Design button feature Modify splice properties to meet the needs of the project and the inventory of the fabricator When using AlSIsplice in the analysis mode try to optimize performance ratios by selectively changing splice properties Keep the difference between inner and outer plate areas within the specified percentage refer to Appendix A in order to equally distribute the force between the splice plates and thus decrease the number of required bolts Compare your design with the AlISIsplice automated design and select the least cost splice It is recommended to use the faying surface class which will be present on the girders surfaces Using a faying surface with a smaller surface condition factor AASHTO 6 13 2 8 than what is actually present may cause overly conservative splice designs Blast cleaned surf
31. sktop AISIsplice V3 0 Software Manual 5 3 License Activation Procedure AISIsplice has a 30 day ready to try license You can install it on any computer and you are entitled to distribute it to anyone without permission The software will run for 30 days from the day of installation and will need re activation after expiration of the trial license After the expiration of the free trial period the License Configuration screen will appear when you attempt to run the software If you want to copy the Site Code number to the clipboard highlight the Site Code and click the right mouse button When the menu shown below appears select the Copy option You will need to use this number when you request your activation code pz AlSlsplice License Configuration Program License Help JO Program nat authorized Site Code MEINES E EU Site Kew Urda Validate Eii Paste fast Jeete To obtain a new site key license follow the SelectAll Online Orders Visit www steelorgintfrastructure and follow simple ordering procedure Fax Mail Orders Fill in the document named Application doc located in vour program directory and send it ta ASI by fax Credit Card or mail Check or Money Order Fax 601 469 0240 After you have your Site Code ready follow one of the two procedures explained herein to obtain a new site key license For online orders visit www steel org infra
32. ssional assistance The user assumes all liabilities and does so at his her own risk 2001 American Iron and Steel Institute All Rights Reserved AISIsplice V3 0 Software Manual 2 Table of Contents 2 2 3771 27 Bem E e 4 d oo DEO OPTI age cared eh eters dated dipl dt ata Aire detiene esa tut ete du leue 5 2 S NOTtWare InStallatiOHseca t D re xS o Ex UA ENDE e axe pe as Ex au Ee rias e tex ea es 5 De License ACHVATION E FOCCAUTE xac iode toon E ET E E ues ta olov on eise 6 d ITI Te VOTO e a hac atl sa ida e rfiv ide rena duin Eu este p tenes 8 D 3S0 WEE INPUT sedis aci dte rie Mte p GU ditare uM RIO eRe eM edis 8 Jas WY CIC OMI SCPC CMa ta estate aaa A E A E 14 3p d oadimne INDUS Chee Mes iii cores ttu chu tes ed toe dedo O 15 236 Curder Properties Input SCLECM srpski aea i 16 5d Additional Properties Input Screen ordei ecd boston cuo do rasa ee eati duca rdg tos nh 17 Des Splice Properties Input ocre eines actuator iar UM d aiu actui utatcotu rase Ui bu tence 18 O Savne AINE DOLO aoa tates E sted nl detect sataminih usc aden dns tue 18 JE XeCUttOn DI TIVE S OM WONT C uvis MANU sna tah eb PULSI C NP MR deb II A UPC SRM naa 19 8o DO Ware OPU URN NEN EA 20 od Spice Desion summary Graplit6 Ssss E E 20 ob Splice Analysis Summary GESDDIOS x1 i ient b D a e iere ds 21 SG RDO OUM sei sive utere Ed M E EM PN ML MEME 22 96 EXIT THE SOPIWANC cas seti aetate La DU SELMA hate ta esata IPLE DapLOLAPUCpUM laate noe waar Ice gha
33. structure and follow simple ordering procedure For fax or mail orders fill in the document named Application doc located in your program directory and fax it to AISI at 801 469 0240 Credit Card or mail it to Check or Money Order Transportation and Infrastructure Group American Iron and Steel Institute 1101 17th Street NW Suite 1300 Washington DC 20036 AISIsplice V3 0 Software Manual 6 When you receive your activation code type it or paste it into the Site Key box shown below and then click the Validate button pz AlSIsplice License Configuration Program License Help JO Program not authorized Site Code D3C1 1485 OF 4S 72E2 DB Site Kep C5CB 455 0676 2ESE 1007 7 BBF F4 AlSIsplice To obtain a new site key license falla the procedure below Online Orders Vist www steelorgintrastructure and folloyy simple ordering procedure Fax Mail Orders Fill in the document named Application dac located in vour program directory and send it ta ASI by fax Credit Card or mail Check or Money Order Fax 601 469 0240 The software will then check your Site Code and the message shown below will appear to prompt you that you are licensed to run the software Congratulations You are now licensed to run this software Press OF ta continue or Cancel if vou want to run your software later Cancel After you click the OK button the License Flash screen shown below will appear This s
34. ustomary US or Metric SI click to select the units system of choice Simple or Continuous click to indicate the type of bridge span under consideration Project Name optional allows the user to type a project name in the box provided limited to 40 characters 1n length Project Number optional allows the user to type a project number in the box provided also limited to 40 characters in length AISIsplice V3 0 Software Manual 14 e View Defaults when checked allows the user to view and alter file default values refer to Appendix A for more information on AISIsplice default values screens To develop a new input file click the New option and select the appropriate Welcome screen options If you wish to create user specific defaults click to place a check mark in the View Defaults box refer to Appendix A When finished click the Next button to proceed to the next screen To open or revise an existing file click the Existing option In order to provide software guidance an input file is distributed with the AISIsplice software The file which is called SGI 31500 P 82 dat will be used in this manual as an example of a software generated splice design The example is for a splice located near the dead load contra flexure point The loadings in the example are those of a splice that was designed by HDR Engineering Pittsburgh for a two span continuous 20 degree skewed Slab on I girders composite bridge on the Pe
35. ve centroid for an equivalent single row of steel bars When finished entering the data click the Execute button to perform the design or analysis process AISIsplice V3 0 Software Manual 17 5e Splice Properties Input Screen pz AlSIsplice E File Current File C Program Filesss amp lSIsplicess 1 317500 Pee dat Help Splice Properties Thickness Width Splice Plates Steel Type rmn mm Top Flange Splice D teiplate Thickness E 100 Additional Dimensions taken with respect to bolt centers mm xx 90 e 40 z 150 wg 40 Back Execute xs 120 xg 14 xy 175 Save Exit The Splice Properties screen appears only during splice analysis This screen includes the material properties and sizes of the top and bottom flange and web splice plates The screen also includes the number spacing and pattern of connection bolts For clarification on selected items refer to the cross section graphic When finished entering data click the Execute button to perform the analysis Since the Splice Properties screen is specific to analysis progressions it will not appear in the progression of Example SGI 31500 P 82 dat which is included in this manual and the installation files However after the software design process is completed the generated design can be modified and then re evaluated by accessing the splice properties screen via the Adjust Design button as discussed in section 7a 6 Saving Input Data
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