RSCOMBI
Contents
1. Now it would be possible to first enter all the nodes and then enter the elements Working in the mask input in the same manner as in RST AB versions 3 xx or 4 xx would be also conceivable However in RST AB 5 xx graphic input 15 much improved Through that you can begin to define the elements right away Accompanying nodes will be automatically added to them For this use Insert Topology gt Elements gt Graphic Single or simply select the accompanying button from the toolbar The dialogue Sef New Element appears Set New Element X Help System in RSTAB and RSCOMBI RSCOMBI WINDOWS 2001 BY ING SOFTWARE DLUBAL GMBH 13 li 4 1 RELIEVING AND EXCEPTIONAL LOAD SYSTEMS 4 Examples 4 1 Relieving and Exceptional load systems File Extras Help RSCOMBIT All possible 1 2 Load Systems E Input Data a EE x General Data No Description Type as1LS Altemative EN C _ Load Systems Self Weight Permanent E Results Wind Variable Possible LS Groups Wind relieving Relieving Variable Uplift load Relieving Permanent Imperfection Imperfection Exceptional 2 Cancel Compilation of Possible Load System types This example will il2. 1 Mask 1 1 General Dala n iex a Suc Go eon cla ves deu 5 3 2 2 Mask 1 2 Combination nnn 6 3 2 3 Mask 2 1 Possible LS Groups and or LS Combinations 7 3 9 MENUS sata een 11 3 MM NET 12 3 3 ETAS ee ee t aedi 13 SER MIL ec a A 13 Cj eA 14 4 1 RELIEVING AND EXCEPTIONAL LOAD SYSTEMS 14 4 2 GROUP AS 1 LS ALTERNATIVE 16 Appendix Literature Reference 18 RSCOMBI WINDOWS 2001 BY ING SOFTWARE DLUBAL GMBH 1 2 THE RSCOMBI TEAM li 1 Introduction 1 1 About RSCOMBI for Windows Whether you are a first time RSCOMBI user or already have experience with previous ver sions the practical oriented development makes it possible for anyone to start the program and find their way around Much of RSCOMBI s user friendliness comes from the coop erative work with customers and business partners Their valuable tips have contributed enormously to improvements in this version of RSCOMBI for Windows RSCOMBI for Windows is fully integrated into RSTAB 5 for Windows While working with RSCOMBI the F1 key can be used to open the online help system We wish you much success with RSTAB and RSCOMBI DLUBAL ENGINEERING SOFTWARE 1 2 The RSCOMBI Team The following
3. 2 RSIMP Automatically generates sets of LS Groups and LS Combinations p xm ss d Starting RSCOMBI via the Menu or the Navigator 3 2 Masks Input to define types of load systems and the output for numerical results can be done with masks RSCOMBI disposes of its own Navigator with all available masks shown to the left The masks can be opened through the RSCOMBI Navigator or the Masks menu Page back ward or forward through the list with the F2 and F3 keys or with the and gt gt but tons at the bottom of each mask OK saves the input and results before leaving RSCOMBI Cancel ends RSCOMBI without saving any work done The Help button or the F1 key will activate the online help system File and Help menus can be found in the title bar at the top Refer to Chapter 3 3 for the explanation of their functions RSCOMBI WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 3 2 MASKS 3 2 1 Mask 1 1 General Data After starting RSCOMBI the mask 7 1 General Data opens RSCOMBI rstab3 File Extras Help RscOMBI 1 1 General Data E Input Data Generation of First number of generated General Data LS Groups 2nd Order Analysis LS Group 1 100 LS Combinations LS Combination 1 1 100 According to Code 2 3 405 New Delete Generation parameters Concentration of the generated Assign Imperfect
4. DLUBAL GMBH 17 AS APPENDIX LITERATURE REFERENCE Appendix Literature Reference 1 J Lindner J Scheer Beuth Kommentare H Schmidt Erl uterungen zur DIN 18800 Teil 1 bis 4 2 NORM B4300 1 3 CSN 730035 RSCOMBI WINDOWS 2001 ING SOFTWARE DLUBAL GMBH
5. Eurocode com binations RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 9 3 2 MASKS 10 RSCOMBI rstab3 RSCOMBI1 1 1 General Data E Input Data Load Systems e 1 LY a t x IF 4 9 Py y mi 4 wd 4 j AY dJa Mask 1 1 General Data E3 Edit Code Dialog with safety factors settings RSCOMBI WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 3 3 MENUS RSCOMBI Frame RSCOMBIT 1 2 Load Systems E Input Data Nw E General Data Permanent L2 2508 3 L3 3Wnd 4 4 Windrelieving Relieving Variable 5 5 Imperfection Imperfection estt Mask 1 2 Loads RSCOMBI Frame RSCOMBIT 2 1 Possible LS Groups n El Input Data General Data NE x 1 35151 1 35452 1 35453 0 9454 155 L2 BjjSi 135L52 135193 09094 L95 L3 135 EB 1 35 LS2 1 35 LS3 LS5 00 __ 135451 15152 09454455 _____ L5 151 135452 0343345_ ___ DIE ER ET EEE ___ L7 0 1359151 5 1 35153 09154 155 L8 __01 35151 1 5152 55 ____ ES 1 3551 1 5LS3 LS5 _ _ L10 00 1 35151 154 155 Bd 151 154 155 Bg 1 35151 155 Possible Load Combinations 3 3 Menus The menus contain the necessary functions to work with
6. Imperfection 5 Input in Mask 1 2 Load Systems 16 RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 4 2 GROUP AS 1 LS ALTERNATIVE RSCOMBI Frame 2 2 x File Extras Help RSCOMBIT All possible 2 1 Possible LS Groups Input Data Be Load Systems Results Possible LS Groups 1 35 LS1 1 354 53 0 9 LS5 158 151 1 35453 0 9 LS5 158 Results in Mask 2 1 Possible LS Groups Interpretation of the results Load System 1 is defined as permanent and therefore appears in each LS Group When the imperfections are assigned for each LS group in mask 1 1 they will appear in each LS group 15 2 and LS 4 and 157 will always be combined together since they are marked with identical text in 1 LS column The same applies to LS 3 LS 5 and 1 5 8 Since LS 4 and LS 5 are defined as relieving variable an LS group containing one of these load systems must be created containing all permanent load systems with a safety factor of 1 35 and also with all permanent loads with a safety factor of 1 00 LS2and LS 3 are grouped as Alternative Therefore they may never occur in one LS group or LS combination together The same applies to all load systems that are linked to LS 2 and LS 3 This option is the most effective way in reducing reduce the number of LS groups or LS combinations required RSCOMBI FOR WINDOWS 2001 ING SOFTWARE
7. RSCOMBI cases and results Ac tivate a menu by clicking on a menu title or simultaneously pressing the Alt key and the underlined letter in the menu title Activate functions within the menus the same way RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 11 3 3 MENUS Alt D 12 3 3 1 File lets you work with RSCOMBI cases RSCOMBI rstab3 File Extras Help Mew Rename bd 1 1 General Data Generation of _ First number of generated erererarereme LS Groups 2nd Order Analysis LS Group v 1 100 15 Combinations LS Combination 1 1 100 Delete According to Code Ec 2 3 4 015 IE E New Delete Generation parameters UM V A Ur 2 2 4 Assign Imperfection Load System to each LS Group Concentration of the generated LS Groups or LS Combinations in one Either Or LS Combination 5 P E x Automatic generation based on RSTAB results of LS Combination z of automatic generated combinations en m Comments m 4 i 2 a A as Generating Check Rename Case Menu File New Strg N lets you create a new RSCOMBI case New RSCOMBI Case No Description 2 Main combinations v Cancel New RSCOMBI Case Assign to each New RSCOMBI Case a No and Description Click on the Downward Ar row for a list of all existing
8. descriptions You may use one of these descriptions OK creates the new case Rename lets rename the Description and select a different No for an existing RSCOMBI Case No Description Cancel Hep RSCOMBI Rename Case It is important to assign a number not already in use Delete Shows all existing RSCOMBI cases in a list Delete Cases x Delete Cases RSCOMBI FoR WINDOWS 2001 BY ING SOFTWARE DLUBAL GMBH N P A Alt H 3 3 MENUS Delete a case s by clicking on the description and then on OK 3 3 2 Extras Here you have access to further settings under Options Calculation Details X L5 Lombination Details LS Group Details Calculate the max min Values of Divide Results by LG Factor M 2 Consider Tension Force Effect v2 M 3 v3 MT Convergence limit Epsilon 0 010 nd Order Analysis Stiffness reduction Square Addition factor 1 100 1100 Cancel Help Options These settings allow you to control which results will be analyzed from RSTAB You can define for example that RSCOMBI should evaluate only the M 2 moments RSCOMBI finds then in the RSTAB results the locations of all max or min M 2 moments and the par ticipating load systems These might differ from the max min axial forces N or shear forces V However it s most likely that the load cases with the maximal bending moment will lea
9. with both the factor 1 00 and 1 35 load system groups that contain an exceptional load system may only be combined with the factor 1 00 RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 15 4 2 GROUP AS 1 LS ALTERNATIVE 4 2 Group as 1 LS Alternative RSCOMBI rstab3 File Extras Help RSCOMBI1 1 1 General Data El Input Data Generation of First number of generated General Data LS Groups 2nd Order Analysis LS Group 1 1 100 nn LS Combinations LS Combination 1 1 100 According to Code EC 2 3 40r5 Edi New Delete Generation parameters 4 d Concentration of the generated LS Groups or LS Combinations in one Either Or LS Combination lt t Automatic generation based on RSTAB results of LS Combination of automatic generated combinations PT gt 2 E Generating Check Comments Mask 1 1 General Data RSCOMBI Frame 2 2 E4 File Extras Help Rscomen All possible 1 2 Load Input Data System General Data Description LS ii EE e ex 1 Possible LS Groups 3 3 5 5 4 4 Widrlievinginx Relieving Variable x _5 5 Windrelievinginy Relieving Variable _ y 5 Imperfectioniny
10. 1 Relieving variable load systems actually create two load groups or load combinations a one with the safety factor 0 9x factor set in the Code and b one with the safety factor 0 9x factor set in the Code but permanent loads only with factor 1 0 other load systems are generated in the normal way Imperfection loads also have a fixed safety factor as stated in the Code in mask 1 1 More complicated combination features may be set up in the Advanced dialog of the Edit Code dialog in mask 1 1 In the Group column use the as LS sub column to determine which load systems should always occur together To do this just enter an unique and identical text or number in this sub column for all the desired load systems This feature helps you to link two load systems and at the end they are practically treated as one load system Use the Alternative sub col umn to mark the load systems that cannot occur at the same time A typical example for this is wind from left and wind from right they obviously cannot occur at the same time in dif ferent directions RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 3 2 MASKS RSCOMBI Production Facility File Extras Help Rscomen 1 2 Load Systems El Input Data General Data Load Systems AC B SS a A EINE NNNM INE Description Type as1LS Alternative LS No Variable Imperfection load in Imperfection Imper Imperfection load in Y Imperfection p
11. 1 00 Imperfection load systems Safety factor 2 1 00 Relieving permanent load systems Partial Safety coefficient 1 00 Relieving load systems This type of load system is combined like a regular variable load system and uses safety factors of 1 50 or 1 35 Additionally all combinations with a relieving variable load system are recreated but all permanent load systems in this combination are applied with the factor 1 00 instead of 1 35 In consideration of the above RSCOMBI provides the following results RSCOMBI Frame x File Extras Help RSCOMBIT All possible 2 1 Possible LS Groups E Input Data B Adopt in RSTAB Combinations Criterion General Data Possible LS Groups 1 35 LS1 1 35 LS2 0 9 LS3 154 155 4 151 1 35452 0 94153 154 155 Load Systems red Bd 151 152 153 154 155 156 _3 x 5 LS1 LS2 L54 LS5 LS6 6 151 153 154 155 156 Bd 1 35151 1 5452 154 155 x x 1 35 51 L53 164 155 X 151 153 154 155 151 154 155 156 1 35151 154 155 EN Iv With Factors Cancel Help Hesults in Mask 2 1 Possible LS Groups When the imperfections are assigned to each load system in the 1 1 General Data mask they appear with both load systems LS 1 Permanent and LS 5 Imperfection in each load system group LS groups that contain load system 3 Wind relieving must consider load system 1
12. Program RSCOMBI For use with Windows 95 98 ME NT 4 0 2000 Generating of LS Groups and LS Combinations User Manual Version August 2001 All rights including those of the translation are reserved No portion of this book may be reproduced mechanically electronically or by any other means including photocopying without written permission of ING SOFTWARE DLUBAL GMBH While every precaution has been taken in the preparation and translation of this manual ING SOFTWARE DLUBAL GMBH assumes no responsibility for errors or omissions or for damages resulting from the use of the information contained herein ING SOFTWARE DLUBAL GMBH Am Zellweg 2 93464 Tiefenbach Germany Telephone 49 96 73 92 03 23 Telefax 49 96 73 17 70 eMail info dlubal com Internet http www dlubal com TABLE OF CONTENTS 1 2 1 1 ABOUT RSCOMBI FOR WINDOWS eere nnn nnn 2 1 2 THERSCOMBLI TEAM iecit ei 2 2 Installing RSCOMBI eere 3 2 1 SYSTEM REQUIREMENTS e eese nun an nun an nun an un ann anne 3 2 2 INSTALLATION PROCESS nee 3 3 Working with 5 4 STARTING HSCOMDBL caa rs ene een 4 SEMEL t cm 4 3 2
13. an authorization failure message when starting the RSCOMBI module from RSTAB the program will run as a limited but functional demo version RSCOMBI WINDOWS 2001 BY ING SOFTWARE DLUBAL GMBH 3 3 2 MASKS SS li 3 Working with RSCOMBI 3 1 Starting RSCOMBI RSCOMBI can either be started from the Additional Modules Others gt RSCOMBI menu or by selecting it from Additional Modules in the Position or Project Navigator on the left side of the screen BEE 8 x M pete ee Design my ig HER Connections Nodes Foundations Materials Dynamic Analysis Sections RSBUCK Buckling Shapes and Loads Critical Load Factors E Element Hinges OO RSMOYE Generation of Moving Loads Element Partitions Elements E Supports Elastic Foundations Non linear Springs 23 Rigid Couplings Eccentric Connectic Sets of Elements Loads Load Systems 3 LS Groups LG1 Dead wei 9 LG2 1 35451 Z3 LG3 LF1 LF 154 LF1 LG5 Loads for LS Combinations Super Combinations 8 Results Printout Reports 3 Additional Modules ASD STEEL FE BGDK FE BEUL BETON 1 6 Elements TIMBER DEFORM B ZU T RAHMECK DYNAM RSBUCK RSMOVE RSCOMBI Element Type Node Rotation Section Part Length Press F7 Begin End 1 Begin End Mo m Comments 1
14. d to the maximal stresses so it is a good recommendation to evaluate the bending moments All the other settings are detailed settings for the new LS combinations or LS groups as de scribed in the RSTAB manual 3 3 3 Help opens the online help system amp 72 Help Author On File Edi Bookmark Options Help gt amp gt DLUBAL Engineering e ASD No more time will be spent with possible individual adjustments Simply check the DYNAM box Grid over Enfire Area and leave the dialogue The grid will be laid over the entire E screen Now the input of the structure can begin 5 00 1 About RSTAB 5 1 1 About RSTAB 1 2 Company Profi 1 3 The RSTAB 5 1 4 Using the Man 2 Installing RSTAB 3 Introductory Exampl 3 0 Introductory E B 3 1 System E 3 2 Starting RSTA E 3 3 Setting up a N 3 4 Entering Data N 3 5 Calculating the First Element No fi Element Type Beam 3 6 Documenting t Element Around its Win Ars by Cancel 4 ASTAB 5 for Windo rl 5 Working with ASTA fe 0074 Help 6 Importing and Expor Hela Node Pick J STEEL lt gt 1 Introduction In Element Plane 1 2 2 2 2 STEEL Installation nummer 2 1 System Requir 2 2 Installation Prax Begin Press New or Library sg Edit Library End Beginning T New Eat Library
15. eight Snow Wind Wind relieving and Imperfection RSCOMBI must find the governing LS groups for these load systems The relieving wind load system would lead to smaller moments in the right hand frame corner Therefore it may not be included in all load groups However for further design of the connection in the right hand frame corner you might also want to find the maximal positive moment there Also for the foundation design the relieving uplifting wind load must be taken into account RSCOMBI must thus ensure finding both results in the created LS Groups or LS Combinations This means that the wind load systems must be analyzed both individually as well as together Additionally a load system of type re lieving variable will create two load groups or combinations from an identical set of load systems The first one treats the relieving load like a regular variable load but reduces the safety factor entered in the code by 0 9 The second combination additionally puts the self weight safety factor to 1 00 Both together ensure that the maximal uplifting load and the maximal gravitational load is applied to the structure LS1 Self Weight Permanent LS2 Snow Variable RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 3 2 MASKS 153 Wind Variable 154 Wind relieving Variable LS5 Imperfection Drift in X Imperfection The following masks show the input in RSCOMBI for this example and for
16. esult values including the origin of the vaule ie from which LS LG or LC the result is coming from Assign Imperfection Load System to each LS Group One of the defined imperfection load systems in mask 1 2 will be assigned to each load system group This option eliminates combinations without imperfection load systems and therefore reduces the number of re sulting LS Groups or LS Combinations Automatic Generation based on RSTAB Results Creating every possible combination may result in so many combinations that analysis time and documentation are increased However many of the theoretically possible combina tions are non governing RSCOMBI can therefore analyze RSTAB results and take into ac count only those LS Combinations containing the governing internal forces Either existing or automatically created combinations may form the basis of this analysis In each RSTAB LS Combination the participating Load Systems or LS Groups are known and this informa tion will be evaluated by RSCOMBI RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 5 3 2 MASKS JAWS Of LS Combination evaluates LS Combination selected from the drop down list box Of automatic generated combinations first creates nominal load combinations calcu lates these in RSTAB and then evaluates the results Since the partial safety factors are not taken into account in the automatically generated combinations the most unfavorable com b
17. ination might not be found in every case However in many situations it will be the only way to reduce the immense number of theoretically possible LS Combinations Comments Detailed notes can be entered here 3 2 2 Mask 1 2 Combination Criteria In this mask decide which and how the load systems from RSTAB should be combined The basic idea behind RSCOMBI is that it is possible to make any conceivable combination of individual load systems To keep the amount of data to a minimum you can make re finements At the beginning you will find all Load Systems in a list including the LS No Load System Description and the Load System Type The Load System Type is a criterion for the possible LS Groups or LS Combinations Permanent Load Systems self weight dead load will be always included with a fixed partial safety factor in the resulting combi nations or groups Variable Load Systems snow wind live loads may or may not be in cluded If only one variable load system is included there is a higher partial safety factor If there are two or more variable loads included the partial safety factor 15 lower Both factors may be defined in the code settings in mask 1 1 Exceptional Load Systems earthquake are assigned with a particular fixed safety factor and at the same time the safety factor of the other load systems in the combination or group are reduced to 1 0 Relieving permanent load systems use a fixed factor as determined in the Code in mask 1
18. ion Load LS Groups or LS Combinations in System to each LS Group one Either Or LS Combination IV Automatic generation based on RSTAB results C of LS Combination of automatic generated combinations Comments Generating Check DK Help Mask 1 1 General Data Select an existing RSCOMBI case with the help of the list box At the lower part of the window you can add Comments for each RSCOMBI case The Check button is available to run a consistency check Generation of Decide whether LS Groups or LS Combinations should be generated First number of generated LS Group or LS Combination sets the initial number of the newly generated LS Groups or LS Combinations According to Code Select one of the codes in the drop down list box Depending on the type of the load system Permanent Dead Variable Live etc for each code partial safety factors are defined Use the Edit New and Delete buttons to change existing partial safety factors for existing codes or to define new codes Advanced Settings allows you to check the following options Concentration of the generated LS Groups or LS Combinations in an Either Or LS Combination Here the user simply decides whether the generated load system groups and or LS combinations should be combined once more among each other The Either Or combination will create an envelope of all max min results and list only the extreme r
19. lustrate how particular load system types may influence the safety fac tors in a combination All assumptions are based on the code settings in mask 1 1 Edit Horm Description EureCode 1 Combination Factors for Permanent 1 35 Imperfectian 1 00 Variable For Relieving Permanent 1 00 1 50 ll Relieving Variable 1 00 several Load Systeme 1 35 Exceptional 1 00 Advanced Faktor for reduction of stiffness M 1 10 Horm Name Cancel Help Edit Code Settings for load system types Permanent load systems This load system appears in each created LS group LS com binations It will generally be applied with 1 35 However a combination with a re lieving variable load system creates an exception Then the LS Self Weight perma nent is applied additionally with a safety factor of 1 00 So one LS group must be cre ated using 1 00 x LS1 and another using 1 35 x LSI 14 RSCOMBI FoR WinDows 2001 By ING SOFTWARE DLUBAL GMBH 4 1 RELIEVING AND EXCEPTIONAL LOAD SYSTEMS Variable load systems When several variable load systems are combined in an LS group or combination they will be applied with a safety factor of 1 35 If only one variable occurs a factor of 1 50 1s used Exceptional load systems this load system type deals with a safety factor of 1 00 in a combination or group All other load systems combined as unusual will also use the factor
20. people contributed to the development of RSCOMBI for Windows Program Coordinators Dipl Ing Georg Dlubal Dipl Ing Peter Achter Ing Pavel Bartos e Programmers RNDR Zdenek Kosek Mirza Hadzic Dr Ing Jaroslav Lain e Program Testing Dipl Ing Georg Dlubal Dipl Ing Peter Achter Dipl Ing FH Walter Rustler e Manual and Help System Jana Rustler Dipl Ing FH Walter Rustler RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 2 2 INSTALLATION PROCESS 2 Installing RSCOMBI 2 1 System Requirements To use RSCOMBI we recommend the following minimum system requirements Windows 95 98 NT 4 0 2000 Operating System 200 MHz Processor 64 MB Memory CD ROM and 3 5 disk drive for installation 2 GB total hard disk capacity with 200 MB reserved for installation 4 MB Graphic card and monitor with a resolution of 1024 x 768 pixels With the exception of the operating system no product recommendations are made RSCOMBI and RSTAB basically run on all systems that fulfill the system requirements Your computer does not need to have Intel Inside and it is also unnecessary to have an expensive 3D graphic card Because RSCOMBI and RSTAB are generally used for exten sive calculations the phrase more is better holds true 2 2 Installation Process Licensed RSCOMBI users should follow the installation instructions in the RSTAB man ual RSCOMBI will be automatically installed If there 15
21. r Generating Check Actual Mask 1 2 Combination Criteria 3 2 3 Mask 2 1 Possible LS Groups and or LS Combinations Depending on whether LS groups or LS combinations are generated RSCOMBI automati cally shows the 2 7 Possible LS Groups and or LS Combinations mask Extras Help RSCOMBI1 2 1 Possible LS Groups Input Data P General Data Combinations Criterion Load Systems 1 35451 1 35 LS2 1 35153 0 9154 155 E Results 151 1 35452 1 35153 0 9454 155 Possible LS Groups 1 35451 1 35152 1 3553 155 135 35 F 1 35151 1 35153 0 9154 155 135151 1 5452 155 1 35151 1 5153 155 1 354 51 154 155 L 51 154 L55 1 35 LS1 155 Mask 2 1 Possible LS Groups In this final mask you may choose which combination or group should be adopted in RSTAB Just select the box in column A In column B you will see the Combinations Cri terion with the load systems and the safety factors The safety factors may be hidden if the With Factors check box 15 deselected in the right bottom corner If you click on the OK button RSCOMBI will enquire whether or not the selected LS groups or LS Combinations should be exported to RSTAB RSCOMBI FOR WINDOWS 2001 ING SOFTWARE DLUBAL GMBH 7 3 2 MASKS Example A simple moment resisting frame is to withstand 5 load systems Self W
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