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KSN SOFTWARE AUSTRALIA USER MANUAL
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1. 125 KsN12M KSN16S KsN16M 205 KsN20M KSN20L Top Anchors 125 KsN12M KSN16S 16 205 KSN20M KSN20L Alternative anchors When a Design case is created some default input values are shown Geometry Load and Anchor information need to be updated to the current design case The first tab of the input window contains the geometry information of the design case 2 8 1 Geometry Double Row Moment Loads Anchors Geometry Slab thickness Wall thickness Total estimated connection length without vertical joint Distance to top of wall from slab surface 250 mm 30MPa Distance from bottom of wall to slab soffit 200 mm 30MPa Cover to top reinforcement 10 m Cover to bottom reinforcement 1000 Reinforcement characteristic yield stress 1000 25 500 mm mm mm N mm2 Ci 2 18 KSN Software Australia user Manual BUILDING PRODUCTS Limitations Information on input limitations is explained in the help window that appears by keeping the cursor on the input box for a few seconds Distance from bottom of wall to slab soffit 1000 mm Cover to top reinforcement 25 The bottom anchors should be located at a distance of at least 1 5 times the effective embedment away from the bottom of the wall Cover to bottom reinforcement Reinforcement characteristic yiel
2. KSN Software Australia user Manual BUILDING PRODUCTS KSN SOFTWARE AUSTRALIA USER MANUAL version 1 01 August 2014 con An KSN Software Australia user Manual BUILDING PRODUCTS Table of Contents L Product 4 1 1 Description and advantages of using Ancon KSN 4 1 1 1 Description and current TANGO us csteesee irte oap Spera Evo See vb p VES Da ERaX dS 4 1 1 2 P eI BEES TS NT ETE T TED 8 1 2 merran TED 8 1 3 Design eirs 9 1 3 1 9 13 2 Wall MINIMUM AIRE n 10 1 3 3 Minimum edge distante 10 1 3 4 Minimum anchor distantes connec 10 1 3 5 Llevo 10 1 3 6 KSN 11 2 Software overview Quick start 11 2 1 SOTtWate 11 2 2 S NC OC CS epe ieu REM eeu NURSE NR RUNE 11 2 3 de Em Odo uc Ard 12 2 4 Fe UP Met zzi Omm 12 2 5 Sotware presem 13 2 6 Setting up your project 14 2 6 1 General project information 2 14 2 6 2 Setting up levels design cases and locations 14 2 6 3 importing 15 2 7
3. Case Before starting the design the choice of configuration required needs to be made Select the design case you want to consider from the Project view window a choice of configuration will appear 3 configurations are available at this stage Choose Anchor Type m 1 configuration Moment connection One row of anchors KSN top anchors are used to resist the tension induced by the moment e Enhanced anchor capacity may be provided due to the modified cone if applicable e Note that in this configuration the shear is not checked by the software 16 KSN Software Australia user Manual BUILDING PRODUCTS 2 configuration Moment connection Two rows of anchors e KSN top anchors are used to resist the tension induced by the moment as per above configuration e Enhanced anchor capacity may be provided due to modified cone if applicable Bottom anchors are used to provided bottom reinforcement anchorage e Shear is resisted by the shear key provided by the use of the standard carrier 3 configuration Tension only One row of anchors e KSN top anchors are used to resist the applied tension No moment is applied The choice of configuration depends on the application and in particular the anchor arrangement one or two rows and the loads applied 17 KSN Software Australia user Manual Once the configuration is chosen the software layout becomes Level and Design case s
4. choice of anchors e Fail Input valid but current choice of anchors capacity not sufficient The design status is provided in the result summary box which allows for a quick and easy assessment of the current anchor selection 20 KSN Software Australia user Manual BUILDING PRODUCTS Design not valid result Results q Wall to slab connection Ancon KSN Anchor design based on the design principles in 453500 NZS 3101 Design assumes wall concrete is uncracked 0 Bottom Anchors KSN20L o 7b Shear Check DESIGN NOT VALID Design Not Valid result for current Input not valid selection tw Top anchors too long o Bottom anchors too long Top of wall too close 9 Bottom of wall too close o Number of anchors is less than 2 o Top and bottom anchors too close 105mm min Q Effective depth of slab too small 140mm min List of reasons provided Fail result Results q Ancon KSN Anchor Wall to Slab connection Design to fib Bulletin 58 Design of anchorages in concrete and BS EN 1992 1 1 Euracade 2 UK Design assumes wall concrete is uncracked Selected Anchors The design status reflects the fact that Top Anchors KSN123 the top anchors do not provide Bottom Anchors KSN125 enough capacity for the applied load Shear Check as shown on the utilisation ratio FAIL 21 KSN Software Australia user Manual BUILDING PRODUCTS Valid Design Warning and
5. i i 2 v 3 i N z VA v gt n gt A k gt E x 4 Wall to slab construction joint using KSN anchors KSN Anchors can be used to anchor the slab top and or bottom reinforcement following the requirement of AS3600 1 and the indentation created by the carrier can be used to resist the shear In this configuration if a moment is applied to the connection a series of test has shown that the compression induced by the moment modifies the pull out cone of the top anchor and in some circumstances this results in an enhanced pull out capacity for the top anchors This design software assesses the conditions and calculates an enhanced pull out capacity when possible Other applications are possible but care should be taken that the design assumptions stated in the next pages are applicable If in doubt please contact Ancon KSN Software Australia user Manual BUILDING PRODUCTS 1 3 Design Assumptions Notations The notations used in this document have when possible been set to be consistent with the references they come from Aa Rd Area of slab bottom reinforcement to be anchored in the wall C Side edge distance distance of first or last anchor in a row with edge perpendicular to the line of anchors des Effective depth of the slab f Characteristic compressive cylinder strength of concrete at 28 days f Design yield strength of reinfo
6. notes A warning is displayed if additional links are required to provide a ductile connection see wall reinforcement requirement for robustness Valid Design Notes Results q Wall to slab connection Ancon KSN Anchor design based on the design principles in 4538500 7 NZS 3101 Design assumes wall concrete is uncracked Selected Anchors Anchors KSN165 euo Bottom Anchors KSN125 0 Shear Check VALID DESIGN amp Links required to provide ductile connection Self Explanatory notes on the design Anchors capacity limited by concrete strength are provided Shear not checked 2 9 2 Alternative anchors A window is provided showing information on suitability of alternative anchors The list of alternative top anchors and Suitability of Alternative Anchors bottom anchors if applicable is Top Anchors Bottom Anchors provided to facilitate the choice of KSN125 KSN12M KSN165 KSN16M KSN16L KSN20S KSN20M KSN20L KSN125 KSN12M 5 165 KSN16M KSN16L 5 205 KSN20M KSN20L anchors 22 KSN Software Australia user Manual BUILDING PRODUCTS This warning icon indicates that the alternative anchor is suitable but will require the use of additional links in the wall if a ductile connection is required see wall reinforcement requirement for robustness This icon indicates that the alternative anchor is su
7. the depth of the embedment of the head of the anchor to the effective depth of the slab 25 KSN Software Australia user Manual BUILDING PRODUCTS Following the tests a design method was established to calculate the enhanced anchor capacity when applicable 2 Nera cenh Idealised modified concrete failure Paired arrangement used in testing The reinforcement design strength is calculated based on the following Near di Axf The anchor design strength is the maximum of the anchor design concrete strength but limited to the reinforcement design strength 2 10 2 2 Applied Tension due to moment The calculation of the applied tension to the top anchors is based on the calculation of the lever arm z between the compression block and the anchors according to AS3600 2009 using a rectangular stress block See clause 8 1 3 for details Neg M z 26 KSN Software Australia user Manual BUILDING PRODUCTS Determination of the level arm z Uniform compressive stress f with o521 0 0 003f and 0 67 lt 0 lt 0 85 M F amp z F4z with of yk db with b width of the section reduction factor So M af yk db z and z d yk d 2 oof ykydb 4 2 oof yk db d 5 ykudb yk d 2 M of yk b ocf y ku d bd 2 ku d b 2 af y ky d b 0 afc y d b 2 yk 2k 2M d b 0 y k 2 ky 2M d af y d b 0 Quad
8. Cholce OP E 16 2 8 S 18 2 8 1 eren cis d S 18 2 8 2 Loads and support condition when 19 2 8 3 ANONO a 19 2 9 Results SUMMA Y cd min estudio ues 20 2 9 1 Current anchor selection eene nennen nennen nnns 20 2 9 2 DIOE Sosa ient itat ee air tuni dRM e eO EM NER N 22 2 9 3 Tips for optimum KSN Desig cissi 23 2 10 Calculation note and detail of design 24 KSN Software Australia user Manual BUILDING PRODUCTS PUN RR 24 2102 D tall OP desiBm BHBEIBIGS 25 3 419 31 KSN Software Australia user Manual BUILDING PRODUCTS 1 Product overview 1 1 Description and advantages of using Ancon KSN anchors 1 1 1 Description and current range KSN Anchors The Ancon KSN anchors are hot forged headed anchors manufactured from highly reliable Cr Mo alloy steel for casting into concrete KSN Anchors eight standard sizes available from stock Head A F Length Head Width _ Thread Length Chamfer Metric Thread Diameter Nominal Nominal Nominal Anchor Extern
9. al Metric Head Head Anchor Thread Ref Diameter Thread Width A F Length Length mm mm mm mm mm mm KSN12S 115 KSN12M 22 M16 x 2 0 46 40 150 18 KSN16S 130 KSN16M 28 M20 x 2 5 61 23 160 22 KSN16L 190 KSN20S 150 KSN20M 32 M24 x 3 0 75 65 190 27 KSN20L 230 KSN Software Australia user Manual BUILDING PRODUCTS Anchor installation methods The most common installation method for the use of Ancon KSN anchors is the use of KeyBox and MomentBox Metal Casings A galvanised steel casing is supplied with KSN Anchors installed at the specified design spacing The unit is sealed at each end to prevent the ingress of concrete and the steel is dimpled to provide a key for the concrete Contact Ancon if using high slump superplasticised concrete Upon removal of the formwork the casing remains embedded in the wall with the cover in place to prevent thread contamination The cover is removed to install the threaded bars and the rebate formed by the boxes is filled with concrete when the adjoining slab is poured This method provides KSN Anchors with an additional 36mm of embedment making it the highest load capacity installation method available and suitable for moment connections KSN KeyBox Single row Metal Casing KSN MomentBox Double row Metal Casing KSN Software Australia user Manual BUILDING PRODUCTS Other possible carriers KeyBlock and MomentBlock Reusable Mould This is a reusable plast
10. d stress The software checks the validity of the input values provided and warnings will appear in the result summary if any input value is not within the range of the software calculation The next tab requires the input of the loads and support conditions 2 8 2 Loads and support condition when applicable Double Row Moment Geometry Loads Anchors Design moment 25 kN m Ultimate Slab support condition 9 simply supported Design shear 10 kN m Ultimate flexural restraint Bottom slab reinforcement at mid span 010 200 mm crs Design loads factored are to be provided Depending on the configuration selected they can Moment Shear Tension and Tie Force as applicable Slab support condition The design of the bottom anchor when applicable will depend on the slab support condition The bottom anchor is checked to fulfil the requirement of AS3600 Clause 9 1 3 1 ii or iii Amount of reinforcement to be anchored at the support Simply supported slab 50 of span reinforcement to be anchored at support at least 8d past the face of the support Flexural restraint 2596 of span reinforcement to be anchored at support The last tab is specific to the input of the anchor information 2 8 3 Selection of anchors Double Row Moment Geometry Loads Anchors Anchor carrier Anchor spacing 200 mm 36mm deep keybox single row Anchor edge distance Cx see page 5 100 mm Top Anc
11. design procedure used in this software is based on the KSN anchors resisting tension only while the applied shear is resisted by the concrete shear key provided by the carrier When using a bespoke carrier a separate shear check will be required to be performed by the designer to ensure that the shear can be resisted by the shear key created or by other means 2 Software overview Quick start guide 2 1 Software installation After downloading the software run the AnconKSNSetup exe file Note that you will require administrative rights to install the software As part of the setup you will be prompted to choose your design region see Design codes for more details isl Ancon KSN InstallShield Wizard a Ready to Install the Program The wizard is ready to begin installation Click Install to begin the installation If you want to review or change any of your installation settings dick Back Click Cancel to exit the wizard Select Design Code UK design to fib Bulletin 58 Design of anchorages concrete and BS EN 1992 1 1 Eurocode 2 UK Australia based on the design principles in AS3600 NZ5 3101 InstallShield The design region can be changed at a later date however calculations that are created in one design code cannot later be opened in another 2 2 Design codes The software proposes the choice between two types of design based on the following codes Region Australia Design accord
12. e Project Management Ribbon and select the pdf ES file to be used Import Level Drawing Confirm by pressing OK The pdf will then appear on the main window You can add plans for each level of the project by adding levels selecting the relevant level and repeating the above steps Add Level For each level Design cases can be added by clicking the Add Design Case icon LT Add Design Case Design cases can be renamed the same way as the levels If a pdf drawing was inserted for the level locations can be added by highlighting them on the drawing for each design case The different levels design cases and locations are shown on the Project view window Example Project View q Upper Ground Floor Design cases renamed as Standard Imposed Load and Plant Load with location added 4 3 KSN Continuity Systems 4 3 Standard Imposed Load C Location 01 3 Location 02 4 Plant Load C Location 03 1st Floor 2nd Floor Roof 15 KSN Software Australia user Manual BUILDING PRODUCTS 2 7 Choice of design case type The first design case created by default is called Design case 01 and can be renamed in the same way as the levels using a right click on the name of the Design case Rename Design Case Plant load case oK Cancel Additional design cases can be created by clicking on the Add Design case icon in the LT project Management ribbon Add Design
13. e top and bottom continuation bars according to AS3600 2009 e Specification of additional wall reinforcement for ductile behaviour when required e Determination of suitability of other anchors based on the same geometry 2 10 2 1 Concrete pull out Design The concrete characteristic load capacity of an isolated top anchor is calculated according to fib Bulletin 58 3 Clause 19 1 1 4 Nac Ki fa P he with 12 5 empirical value The design strength is then calculated using the relevant reduction factor 0 6 N rk The concrete design strength of the group of anchors is then calculated using the reduction factors for spacing and edge distance gt 2 2 Wanz Yn The formula above was developed for direct tension When a moment is applied to the connection Ancon identified during tests a potential increase in anchor performance when the compression part of the moment couple lies within the pull out cone Ancon commissioned an extensive series of tests at Heriot Watt University to determine the degree of enhancement and establish a design method based on the results The tests verified an enhancement in concrete cone capacity when the pull out failure surface is modified by the presence of an adjacent compression force from the concrete forming part of the couple The results showed a significant enhancement in some cases the enhancement being strongly influenced by the ratio of
14. election window O i Ancon KSN MyKSNProject apd Project 0 09 1 10 41 TE Project Add Delete Add Design Delete Design Calculation Import Level Add Print PDF Details Level Level Case Case Drawing Location Project Calculation View Locations Export Project View 200 Upper Ground Floor ET i 4 KSN Continuity Systems 4 Standard Imposed Load Location 01 Location 02 4 Plant Load Location 03 910 minimum 1st Floor 2nd Floor Roof 1 705 minimum Double Row Moment Geometry Loads Anchors 250 mm 32 40 mm C32 40 Slab thickness Wall thickness Total estimated connection length without vertical joint m Distance to top of wall from slab surface mm Input window 2 8 Input Distance from bottom of wall to slab soffit Cover to top reinforcement Cover to bottom reinforcement Reinforcement characteristic yield stress Ancon BUILDING FRODUCTS Result summary 0 KSN Anchor Wall to Slab connection Design to fib Bulletin 58 Design of anchorages in concrete and BS EN 1992 1 1 Eurocode 2 UK NA Design assumes wall concrete is uncracked Selected Anchors Top Anchors KSN16S Bottom Anchors KSN125 Shear Check MESS Tie Check VALID DESIGN Anchors capacity limited by concrete resistance Suitability of Alternative Anchors Bottom Anchors
15. esceeding SOOMPA s spacing of anchored shear reinforcement crossing interface In our case Asf 8p 0 0 4 from table 8 4 3 t 0 4 lt 0 2 10MPa 0 7 from table 2 2 2 Applied shear stress 7 Veg Nkey Prey 2 10 2 4 Bottom anchor design The bottom anchor is checked to fulfil the requirement of AS3600 Clause 9 1 3 1 ii or iii Two criteria need to be verified Amount of reinforcement to be anchored at the support Simply supported slab 50 of span reinforcement to be anchored at support at least 8d past the face of the support Flexural restraint 2596 of span reinforcement to be anchored at support e Force to be resisted by the anchorage Reinforcement needs to be anchored to resist Force equivalent to the 8d anchorage required F 8d Iis where Lyris the full anchorage length calculated according 13 1 2 2 Loy t Ley tb 0 5kik3f ydp ka f lt 2 29kid 28 KSN Software Australia user Manual BUILDING PRODUCTS where k 1 3 for horizontal bar with more than 300mm concrete cast below the bar k 1 0 otherwise In our case will always be equal to 1 as slab depth is limited to 300mm k 132 d 100 1 0 0 15 cy d d with 0 7 lt k3 lt 1 0 minimum between cover and distance between bars Once Lsy t is calculated anchorage force required is calculated F 8d If Leg The capacity of the bottom anchors in tension is calculated using the same princi
16. hors KSN16S Bottom Anchors KSN12S X e e i 19 KSN Software Australia user Manual BUILDING PRODUCTS Choice of carrier A drop down list is provided with the standard Ancon Keybox and Momentbox carrier or a bespoke setting option For Keyblock MomentBlock nailing plate welded bar or any other carrier use the bespoke carrier option and input the additional embedment refer to table 2 page 7 for values for Keyblock MomentBlock nailing plate and welded bar Note that the shear will not be checked if a bespoke carrier is selected due to the unknown characteristics of the shear key Choice of anchors Input of anchor horizontal spacing and size is required as the last step 2 9 Results summary 2 9 1 Current anchor selection results Results q Wall to slab connection Ancon KSN Anchor design based on the design principles in 453500 25 3101 Design assumes wall concrete is uncracked Design code Selected Anchors Utilisation ratio of the current selection 67 Anchors KSN12S of anchors and shear key applicable NN 20 Battom Anchors KSN125 11 Shear Check VALID DESIGN Design status Anchors capacity limited by reinforcement strength Design Notes when applicable The software provides 3 possible design status Valid Design The current chosen anchors are satisfactory for the loads and geometry provided e Design Not Valid Input not valid for the current
17. ic mould that is provided with mountings for the KSN Anchors at the specified design spacing The blocks are loaded with KSN Anchors and fixed to the formwork where required The block protects the internal threads of the anchors until it is removed so should be left in position until this time Once removed the block may be reloaded with KSN Anchors ready for use on the next set of formwork or may be retained for use on future projects The block provides the KSN Anchor with 5mm of additional embedment by offsetting it from the formwork face This offset and surrounding rebate increases the capacity and makes this installation method suitable for moment connections KSN KeyBlock Single row Mould KSN MomentBlock Double row Mould Individual Nailing Plate Individual Nailing Plates may be used to place KSN Anchors singularly or in groups to provide metric thread fixing points They are also useful for placing anchors in lines where wide centres or congestion precludes the use of other installation methods though care must be taken to ensure correct placement The Individual Nailing Plate provides the Ancon KSN Anchor with an additional embedment of 10mm however it is unsuitable for moment connections Individual Nailing Plate KSN Software Australia user Manual BUILDING PRODUCTS Welded Bar In this configuration the KSN Anchors are supplied welded to a flat steel bar The bar is nailed directly t
18. igure 2 below should be at least 100mm 250 Minimum Reinforcement t 8 pe 5 5 Ld C z100mm Rebar Wall plan view Top edge The top edge of the wall in which the anchors are embedded should be at least 1 5her away from the top row anchors In addition if the top edge is at least away from the top row of anchor and a moment is applied to the connection a capacity enhancement may be achieved and will be calculated by the software if applicable see concrete pull out design for details Bottom edge The bottom edge of the wall in which the anchors are embedded should at least 1 5h away from the bottomrow anchors In addition if the top edge is at least 3h away from the top row of anchor and a moment is applied to the connection a capacity enhancement may be achieved and will be calculated by the software if applicable 1 3 4 Minimum anchor distances For the design to be valid the minimum anchor horizontal spacing Sx should be at least equal to 5 times the anchor shank diameter Refer to table page 4 for shank diameter of KSN 1 3 5 Wall cover The software assumes a wall reinforcement cover of 25mm If more cover is required care should be taken with the choice of anchor length and setting to ensure that the anchors will not encroach in the cover zone 10 KSN Software Australia user Manual BUILDING PRODUCTS 1 3 6 KSN Anchor design The
19. ing Location locaton s Calculstion View Locations KSN Anchors Safer faster easier construction joints 4 KSN Continuity Systems Design Case 01 Traditional slab to wall 1 t e 2 construction joint t fi Driling of formwork required projecting renforcing bars and congestion in men the wal Ja meters 5N Ar ncm y addition to th ta yrnwors and Orotectior ect tonsie applications M neTcsey he by ndeoe dent tests have vert f Project View SPORES Ast sordera wet Anchors when used KSN Level Passaires Reinforcing couplers Award anchorage bars Congestion in the wal No shear key Individual Coupler installation slows site progress design cases and location To begin please select your application below Choose Anchor Type Ancon BUILDING PRODUCTS 1 v Re bend continuity system Box dimensions restrict bar length and diameter On site bar straightening required NEW high performance KSN Anchor system Anchors nstalled in camer indented construction joint Virtually unlimited bar length No bending of bars required Less congestion in the wall Choice of design case type 13 KSN Software Australia user Manual BUILDING PRODUCTS 2 6 Setting up your project O B 8 Ancon KSN Untitled Project 0 09 14 4 P
20. ing to fib Bulletin 58 Design of anchorages in concrete 3 and based on the design principles in AS3600 NZS 3101 1 amp 2 Region UK Design according to fib Bulletin 58 Design of anchorages in concrete 3 and based on the design principles of BS EN 1992 1 1 Eurocode 2 UK national Annex This manual refers to the Australian design refer to the UK manual for details on the UK design 11 KSN Software Australia user Manual BUILDING PRODUCTS 2 3 Changing design codes It is possible to change design code however the current project input will not be saved and you will be required to input the data again To change the design code click on the A icon on the top left corner and select Change Design Code LI E m i Project Choose Region Details Region UK UK Australia Once the new region chosen the software will restart 2 4 File management The KSN software saves each project in apd format that is specific to the Ancon KSN Software Standard file management file saving new file creation and file opening is provided within the menu obtained by clicking the icon A on the top left corner of the window or the icons located to its right D e md Ci Project 12 KSN Software Australia user Manual 2 5 Software presentation 1 File management Project Project Management 06 5 ES 4 Add Design Delete Design Calculation Import Level Add Delete Case Case Draw
21. itable and will provide a ductile connection without additional links in the wall This icon indicates that the alternative anchor is not suitable for the input provided 2 0 3 Tips for optimum KSN Design Anchors in the Suitability of Alternative Anchors window are listed with the most cost effective anchors for the configuration provided located at the top of the list If the current chosen anchor selection shows in the result summary a warning that links are required to provide a ductile connection review the list of alternative anchors and look for the iconto find a solution without links requirement 23 KSN Software Australia user Manual BUILDING PRODUCTS 2 10 Calculation note and detail of design principles 2 10 1 Calculation note Ancon KSH Calculation Project Project Locabon Calculation Level 1 Design Case 01 By Designer Company 01 01 2014 Wall thickness Slab thickness Slab support condition Bottom slab reinforcement at mic span Materials Wall concrete Grade Slab concrete Grade Reinforcement characteristic yield stress Anchors Top Anchors Top Anchor length Bottom Anchors Bottom Anchor length Anchor spacing Anchor carrier 38mm dee Anchor setting from fare of wall Anchor edge distance see page 5 Distance to top of wall from slab surface Distance from bottom of wall to slab soffit Cover to top reinforcement Cover to bottom reinforcement Applied Force
22. o the formwork placing the anchor thread ends flush with the concrete face and the anchors are tied to the wall reinforcement There is no additional embedment of the anchor and this method is not suitable for moment connections It is ideal where a metric bolt attachment is required Thread protection is offered by plastic plugs that should be removed immediately prior to installation of the male component Welded Bar Additional Embedment Given Installation Additional Method Embedment Welded to Rail None Re useable Block 5mm Individual Nailing Plate 10mm Metal Casing 36mm Standard casing depth Other depths available on request Lead time will vary Table 2 KSN Software Australia user Manual BUILDING PRODUCTS 1 1 2 Advantages Used in combination with BT parallel threaded reinforcing bars they provide a quicker easier and above all safer continuity system Quicker No formwork drilling required fast installation against formwork fast installation of the continuation bars Easier Easy installation in wall minimise reinforcement congestion and simplify bar scheduling easier installation of the continuation bars than pull out bars allows virtually any length for the continuation bars Safer Their use avoids the use of projecting bars or on site bar straightening 1 2 Typical Applications The typical application for the use of the Ancon KSN anchors is a wall to slab construction joint 2
23. ple as the top anchors but without enhancement and compared to the anchorage force requirement 2 10 2 5 Wall Reinforcement Requirement for Robustness The design of slab wall connections should not be made in isolation but should be as part of a structural system Ductility requirement of such a connection will depend on the robustness requirements of the structure of which it is part and the strategy chosen to achieve global robustness If the wall thickness is more than the maximum recommended wall thickness i e the back of the anchor is not within the back of the wall reinforcement links are specified to provide a ductile connection as required by AS3600 Clause 14 3 The links are calculated to provide the upper characteristic breaking strength of the bar as per NZS3101 Clause 8 6 11 1 Based on grade 500N according to AS NZS 4671 2001 the maximum upper characteristic yield strength of the bar is Re u 650 MPa Table 2 and the upper characteristic breaking strength of the bar is 1 15xRa u NZS3101 2006 Clause 8 6 11 2 Links are calculated based on those values bars and are to be located above and below the top row of anchors Glossary Glossary of terms used in the software and brochure Anchor carrier The KSN anchors are typically supplied with a keybox or MomentBox carrier that ensures the correct spacing of the anchors and after removal creates a shear key for the construction joint It is possible to purchase the anchors indi
24. plicable Design moment Factored applied moment Positive value required Design shear Factored applied shear Positive value required Ductile connection connection with sufficient ductility and capable of absorbing significant strain energy without rupture Effective embedment of anchors Embedment of the anchors measured from the face of the wall to the front face of the anchor head see figure 1 Moment enhancement Possible anchor capacity enhancement due to the modified cone induced by the applied moment see Concrete pull out design Reinforcement design strength Design strength of the reinforcement bar connected to the KSN anchor Slab support condition Simply supported Connection designed to resist only a nominal moment and where the slab was designed as simply supported at this location Flexural restraint Connection designed to resist a moment and where the slab was designed as restrained at this location 30 KSN Software Australia user Manual BUILDING PRODUCTS Ancon 3 References 1 AS3600 2009 Australian Standard Concrete Structures 2 NZS3101 2006 New Zealand Standard Concrete Structures Standard Part 1 The design of Concrete Structures 3 fib bulletin 58 Design of anchorages in concrete 2011 4 AS NZS 4671 2001 Australian New Zealand Standard Steel reinforcing materials 31
25. ratic equation to resolve ax bx c 0 A b 4ac Solution x b A 2a In our case b 2 c 2M d b A 2 4y 2M d b 4 4 y 2M 9 of y db solution 2 A 2 y as lt 0 36 AS 3600 clause 8 1 5 calculation steps Calculate o and y e Calculate and ku e Calculate z and the Tension per anchor Neg M S z The applied tension is then compared to the anchor design strength 2 10 2 3 Shear check The shear at the slab wall interface is considered to be resisted only by the shear keys created by the carriers 27 KSN Software Australia user Manual BUILDING PRODUCTS Ancon The shear at the slab wall interface is considered to be resisted only by the shear keys created by the carriers If a bespoke carrier is used this check is not performed as the carrier is not known and the user is made aware that the shear was not checked The stress resistance at the interface is calculated according to AS3600 2009 clause 8 4 3 Ty U Ace f bs 8p D Keof 4 lt min 0 2f 10MPa With T unit shear strength g permanent distributed load normal to the shear interface per unit length kN m u coefficient of friction given in table 8 4 3 cohesion coefficient given in table 8 4 3 b width of the shear plane in mm Area of fully anchored shear reinforcement crossing the interface in mm f yield strength of shear reinforcement not
26. rcement her Effective embedment of the anchor refer to figure 1 Mea Design value of the applied internal bending moment Anchors design strength Nau Concrete design strength Concrete design strength taking into account moment enhancement when applicable Concrete pull out design strength without consideration of geometric constraints Nau Reinforcement tensile design strength 9 Anchors horizontal spacing Vtg Design value of the applied shear force Ved Design strength of the concrete shear key provided by Ancon standard carrier Z Lever arm of internal forces 1 3 1 Concrete state The design is based on the anchors being cast in uncracked concrete This is generally the case for anchors cast in walls subjected mainly to compression The performance of the anchors in cracked concrete would be significantly reduced and this calculation is not at the moment available within this software The structural concrete compressive cylinder strength used in this software is in the range 25MPa to 5OMPa KSN Software Australia user Manual BUILDING PRODUCTS 1 3 2 Wall minimum thickness The wall where the anchors are embedded should be at least 175mm thick 1 3 3 Minimum edge distances The proximity of edges can significantly reduce the capacity of anchors It is therefore important to consider any edge that could affect the anchor performance Side edge The side edge distance Cx as shown on f
27. roject Add Delete Add Design Delete Design Section Calculation Import Level Add l Pnnt Details Level Level Case Case Drawing Location Location rit A Project Calculation Locations Export 2 6 4 General project information In the project management part of the ribbon click on the Project Details icon to enter the general project information Project Details Details Project Title Project Location Project Company Details Designer Date 30 06 2014 Cancel The information provided will appear the header of the calculation note 2 6 2 Setting up levels design cases and locations By default the first level automatically created is named as Level 1 All levels can be renamed by placing the cursor above the name to be changed right clicking and selecting Rename as shown below Project View T Rename Level Level 1 SUE Rename t Mame Upper Ground Floor 2 Continuity Systems Design Case 01 OK Cancel 14 KSN Software Australia user Manual BUILDING PRODUCTS For each level it is possible to import a level drawing in a pdf format to assign several locations to each design case This step is optional and can be done at a later stage if necessary 2 6 3 Importing level drawings The following steps describe how to import a plan and assign a design case to several locations identified on the plan Click on Import Level Drawing on th
28. s Design moment Design shear Single Top Anchor Design Strength Applied tension to top anchor Bottom Anchor Anchorage Force Strength Shear Resistance at wall fstab interface Desin shear Ancon Buliding Products Australia Tei 320 WWW Sncon rom au Input Summary 250 mm zimply sunported 10 200 mmc c i K5N125 115 K5N125 115 200 5 key box single row 36 100 1000 1000 25 25 Design Status kN Limited by reinforcement design strength kN Tension due to the applied moment Nea Results Summary page 2 Ancon Bulkding Product Mea 54 0 3 376 5205 24 KSN Software Australia user Manual BUILDING PRODUCTS 2 10 2 Detail of design principles The software performs the following calculations and checks e Calculation of the concrete pull out strength of the top anchors e Calculation of the top reinforcement pull out strength e Determination of the top anchor design strength from the results obtained e Calculation of the applied tension in the top row of anchors and check that it is less than the top anchor design strength e Shear check at the interface between wall and slab when KSN are used with standard carrier e Calculation of the bottom anchors design strength and check according to AS3600 2009 requirements to confirm suitability e Determination of the minimum length of th
29. vidually and use an alternative carrier however this will affect the design and therefore should be taken into account when using the software by selecting the option bespoke when selecting the carrier Anchor design strength Na The anchor design strength is the lesser of the calculated concrete design strength and the reinforcement design strength 29 KSN Software Australia user Manual BUILDING PRODUCTS Anchor edge distance The proximity of edges can significantly reduce the capacity of anchors It is therefore important to consider any edge joint void or any interruption in the concrete at proximity of the anchors that could affect the anchor performance side edge top edge and bottom edge Anchor spacing Anchor horizontal spacing along a row for the standard systems the centres are between 150 and 300mm Bespoke Carrier Carrier other than Ancon standard carrier that will be used to maintain the anchors in position against the formwork When using a bespoke carrier the setting of the anchor in the wall is required to calculate the anchor capacity No shear check is performed when using a bespoke carrier Concrete state The software assumes uncracked concrete Concrete design strength The concrete design strength is the calculated concrete pull out design strength based on the Fib Bulletin 58 and formulas derived from it based on an extensive series of tests to take into account the moment enhancement when ap
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