Shallow Podium Anchorage Design Example Simpson Strong Tie best www strongtie com The witnessed testing conducted by Simpson Strong Tie was used to validate ACI 318 14 Chapter 17 design concepts for anchor reinforcement and the need to design the structural slab to meet amplified 17 2 3 4 3 a anchor forces for use in SDC C F This example presents the anchorage solution in tension for a cast in place anchor bolt in cracked concrete under seismic loading conditions in a reinforced concrete podium slab using anchor reinforcement It is based on test results using flat bearing plates in which the full bearing surface is situated at the effective embedment depth Other bearing surface 5 0 DESIGN EXAMPLES In anchor bolt design Anchor Reinforcement is used to replace concrete tension shear breakout strength In base plate design the column base is assumed to be Moment connection and carries moment 01 06 Base Plate LRFD amp Anchor Bolt ACI 318 11 Design No Anchor Reinft MC exe One input to design both base plate and anchor bolt concept of anchor reinforcement is presented in the following discussion The design of anchor channels and channel bolts is codified in ACI 318 193 and ICC ES AC232 4 The latter document provides Acceptance Criteria AC for the extensive qualification of the anchor system to attain Evaluation Service Reports ESR with product specific parameters for example ICC ESR 2011 10 13 nbsp 0183 32 Before diving into the concrete anchor bolt design calculation example for calculating anchor breakout strength in shear please go through the problem statement and part 1 part 2 part 3 part 4 and part 5 of this series The calculation exercise is carried out according to the ACI 318 appendix D codes

2021 08 27 nbsp 0183 32 Example 51 Base Plate LRFD Anchor Bolt ACI 31 0 Design With Anchor Reinforcement Example 52 Base Plate S16 09 Anchor DESIGN OF ANCHOR BOLTS EMBEDDED IN CONCRETE Fill under the dead and we will bribe you going a Hilti ID to still Ask Hilti If followed these recommended hole sizes allow for easier column erection and setting reinforcement to anchor static equipment or columns in petrochemical facilities The anchor tension and shear forces are assumed to be resisted by the vertical reinforcing bars and ties respectively The calculation for determining the required amount of vertical reinforcing bars and ties is presented A design example of column anchorage in a2015 02 24 nbsp 0183 32 Anchor tensile strength futa 58 0 ksi ACI 318 11 Anchor is ductile steel element D 1 Anchor bolt diameter da 1 in Anchor bolt has sleeve No PIP STE05121 Min Required Anchor bolt embedment depth hef 14 00 in 12 00 OK Page A 1 Table 1 Pedestal height ha 18 00 in 17 00 OK Pedestal width bc 16 00 in Pedestal depth dc 16 00 in Ancholt Bolt 5 51 4 3 Design Examples Eight detailed design examples for CI anchors are provided in Reference 2 They address a range of conditions including single anchors headed and hooked subject to tension shear and combined tension and shear under various Seismic Design Categories They also address headed bolt and stud groups Bridge Design Memo 5 51 2019 06 27 nbsp 0183 32 I later also found a document spreadsheet example on civil bay for anchor shear reinforcement design that appeared to be using the methods discussed in the paper and or similar strut and tie method to design the ties Their example did not check for the capacity of Atie fs They used Atie fy for the full capacity of the tie and 0 9 fc eh dtie for the pullout

Shallow Podium Anchorage Design Example Anchorage Calculation Using Anchor Reinforcement This example presents the anchorage solution in tension for a cast in place anchor bolt in cracked concrete under seismic loading conditions in a reinforced concrete podium slab using anchor reinforcement widely used in anchor bolt design Since the required resistance factors vary among different failure modes the load factor will be given in Equation 1 5 so that the overall factor of safety remains 3 0 3 0 1 5 For example if the anchor bolt design is governed by concrete cone failure with 1 5 the load factor will be given by 3 0 Anchor Tension Reinforcement Anchor Shear Reinforcement Description of Failure Modes Base Plates and Anchor Bolts Examples Appendix 1 – Definitions of Terms Appendix 2 – Citations List Appendix 3 – Anc program The basic reference is Building Code Requirements for Structural Concrete ACI 318 11 and Commentary Appendix D Reference 1 Citations not Anchor reinforcement as defined in ACI 318 Appendix D is reinforcement designed and detailed specifically to transfer the full anchor load from the anchor into the structural member For conditions in which the anchor force exceeds the concrete breakout design strength the design strength of anchor reinforcement typically installed before the concrete is cast may Design of Anchorage Zone Reinforcement in Prestressed Concrete Beams by Peter Gergely and Mete A Sozen NOTATION The symbols as used in the text are defined as follows p uniform stress on cross sec tion due to prestress c distance to the longitudinal crack from the bottom of beam e distance to the applied force from the bottom of beam P applied force

Chapter 4 Design examples p 35 4 1 Example 1 Single headed anchor away from edges subjected to seismic tension 4 2 Example 2 Single hooked anchor away from edges subjected to seismic tension 4 3 Example 3 Single post installed anchor in tension away from edges 4 4 Example 4 Group of headed studs in tension near an edge2020 05 12 nbsp 0183 32 The design of anchor rods has become complex and cumbersome with the development of the ACI 318 anchoring provisions originally in the Appendix D of the ACI 318 11 and earlier and in the Chapter 17 of the ACI 318 14 and later This document covers the required steps in the process of the design of cast in anchor rods normally encountered in column This example demonstrates how to simulate tie back wall anchors using the reinforcement functionality in SLOPE W Each analysis explored a different option available for anchor reinforcement including the force distribution factor of safety dependence and addition of shear mobilized within the anchor The analyses all generated a relatively similar factor of safety for footing with three 5 reinforcement bars Grade 60 The structural Engineer of Record has requested a new foundation system capable of withstanding 2 kips per lineal foot design lateral forces and temporary scour depths to 1 below the existing spread footing The estimated design compression loading is 5 kips per lineal ft for the existing structure The structural engineer The design examples are categorized in Anchor Bolt and Anchor Stud with Anchor Reinforcement and without Anchor Reinforcement with moment presence and without moment presence Anchor Bolt and Anchor Stud The main difference between anchor bolt and anchor stud is the way how they attach to the base plate

Worked examples presented at the Workshop Eurocode 7 Geotechnical Design Dublin 13 14 June 2013 Support to the implementation harmonization and reinforcement Steel plate Concrete HIT RE500 V3 HIT RE 500 V3 Anchor Rebar Anchor Seismic design of rebar as anchor and rebar as rebar 4 REBAR THEORY VS ANCHOR THEORY MAIN DIFFERENCES Rebar theory Post installed rebar Anchor theory Bonded anchor Load on the bar Tension roughness of joint critical for the shear transfer Tension Req d Anchor Reinf Strength V The required anchor reinforcement strength must be equal or larger than the anchor bolt steel strength ΦVsa if anchor design includes earthquake forces for structures assigned with Seismic Design Category is C D E or F ACI Section D3 3 2 Anchor Reinforcement Size Size of steel rebar from 3 to 14 1 Concrete is cracked 2 Condition A supplementary reinforcement is provided 3 Load combinations shall be per ACI 318M 14 5 3 1 4 Anchor reinft strength is used to replace concrete tension shear breakout strength as per ACI 318M 14 Appendix D reinforcing bars and ties is presented A design example of column anchorage in a reinforced concrete pedestal is given to illustrate the proposed design method 2 DESIGN PHILOSOPHY The following general design philosophy is used when the anchor forces are assumed to be resisted by the steel reinforcement 1

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