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• 2018-04-17

The shear capacity of the bolt is given by P S p s A s where p s is the shear strength of the bolt A s is the shear area of the bolt In the table As has been taken as equal to At The shear capacity given in the tables must be reduced for large packings large grip lengths kidney shaped slots or long joints when applicable Mechanical anchors do not have the installation and in use temperature restrictions of their adhesive anchor counterparts and can be loaded immediately after installation This flexibility offers design freedom to the specifier and added productivity to the contractor Wedge anchors Learn more about wedge anchors Concrete screw anchors Learn more about screw Anchor bolt Pull Out Strength is the force required to pull a single bolt out of its foundation The separation can occur between the epoxy grout and the concrete foundation or it can occur between the anchor bolt and the epoxy grout itself This bulletin provides the formulas needed to calculate the force required to pull an anchor bolt out in either manner To calculate the Total 2021 01 08 nbsp 0183 32 Anchor Bolts per Brownell and Young From the beginning of MecaStack until v5532 the anchor bolt design was the same which only checked the tensile capacity of the bolt The baseplate design in MecaStack is based upon the book Process Equipment Deisgn by Brownell and Young In this publication it recommended that the bolt area used be based 3 1 1 anchor bolt steel rod or bar one end of which is intended to be cast in concrete while the opposite end is threaded and projects from the concrete for anchoring other material to the concrete The end cast in concrete may be either straight or provided with an anchor such as a bent hook forged head or a tapped or welded attachment to resist forces imposed on the

23 hours ago nbsp 0183 32 For polymer grouted anchor bolts the load capacity of the polymer grout is significantly affected by the hole size Higher or lower values of clamp load can be used depending on the application require ments and the judgement of the designer The capacity of anyA full metric to inch conversion chart from 0 This spreadsheet program is intended to and conservative design tables for hex headed bolts are provided within this BDM subject to the stated limitations The cast in anchors are used to transmit structure loads by tension shear or a combination of both between connected structura related l elements or safety attachments and structural elements 5 51 2 DEFINITIONS anchor steel element either cast into concrete or Therefore by using our anchor sizing charts and the worse case Storm Loads from ABYC Table each anchor size can be mapped to a respective load For example in our sizing charts the correct storm anchor for a 30 ft boat is a 35 lbs anchor Anytime the choice is borderline we choose the more conservative option i e smaller anchor or larger load The Storm Load for The factored shear load acting on the connection is determined to be 2 240 lb 9 96 kN Again citing Equation 1 and modifying it for the overlap of projected breakout area Apt for each anchor bolt is found to be 90 99 in 178 578 03 cm 178 Refer to the allowable stress design example for TABLE OF CONTENTS 1 0 INTRODUCTION 2 0 such as for anchorages required pre tensioned or subjected to dynamic impact load in cold temperature environment A320 Grade L7 In most cases the anchorage design won t benefit from the high strength bolt material as the concrete failure modes will govern and the use of high strength bolt will make the anchor

3 rows nbsp 0183 32 properties that party shall inspect or test the anchor bolts for the affected properties Design of post installed anchor bolt systems in Hong Kong Dr S S H Cho and Ir Prof SL Chan Department of Civil and Environmental Engineering The Hong Kong Polytechnic University published by The Hong Kong Institute of Steel Construction www hkisc org Page 2 of 87 Contents 1 Introduction 6 1 1 Scope of this book 6 1 2 Aim of anchor bolt design 7 2015 04 13 nbsp 0183 32 Reduction Factors Edge and Spacing Distances for Rawlbolt Shield Anchor Loose Bolt The full characteristic edge and spacing distances shown in the table above are the minimum allowable for the quoted DESIGN RESISTANCE or RECOMMENDED LOAD depending on your design method Anchor bolts are commonly used in masonry to support roof decks overhead doors allowable shear load as given by Ref 1 From Table 1 and Figure 5 it is seen that the factor of safety for this type of bolt assembly based on allowable loads from Ref 1 ranges from 8 7 for the 1 2 quot bolts to 3 1 for the l quot bolts For partially supported specimens composed of two or more blocks the Proof Load Proof load is defined as the maximum tensile force that can be applied to a bolt that will not result in plastic deformation A material must remain in its elastic region when loaded up to its proof load typically between 85 95 of the yield strength Acceptable clamp load is typically 75 of proof load

Example Anchor bolts are assumed to be made from A36 rod stock and of embedment length sufficient to fully develop the allowable tensile capacity 0 6 215 Fy of the diameter of rod used A 1 2 diameter anchor bolt has the following capacity 0 6 215 36 000psi 215 π 215 0 52 4 4 240 psi as noted in the Table The capacity of any substituted grade of steel can easily be calcu Anchorage shall be provided to resist each of the applicable uplift load cases listed in Tables 5 21a and 5 21b The load per anchor shall be t b U N where t b load per anchor U net uplift load per Tables 5 21a and 5 21b N number of equally spaced anchors a minimum of 4 is required 6 min if Seismic governs t b shall be increased to account for unequal spacing Tension and Shear Allowable Load Tables Embedment and Center to Center Spacing Tables and Tool Dimension and Tolerance Table for Drillco Maxi Bolt Anchors Notice Unless otherwise noted all load and design values presented herein are based on the provisions of ACI 349 97 or earlier Design guidance based on ACI 318 05 and ACI 349 06 is being prepared alloy steel anchor bolts also known as anchor rods The anchor bolts are furnished in three strength grades two thread classes and in the sizes specified in Section 4 1 2 The anchor bolts are intended for anchoring structural supports to concrete foundations Such structural supports include building columns column supports for highway signs 8 rows nbsp 0183 32 for Drillco Maxi Bolt Anchors The following tables give tension and shear working stress

TABLE OF CONTENTS ANCHOR BOLTS AND ATTACHMENT HARDWARE General Description P10 1 Submittal Data P10 2 KCAB Anchor Bolts Wedge Type Anchors P10 2 1 KUAB Anchor Bolts Undercut Anchors P10 2 2 TG Grommets Oversized Holes and Cushioned Anchorage P10 2 3 Selection Information P10 3 KCAB Wedge Type Anchor Clamp load estimated as 75 of proof load for specified bolts Torque values for 188 and 5 16 inch series are in inch pounds All other torque values are in foot pounds Torque values calculated from formula T KDF Where D is the nominal diameter F is the clamp load K 0 15 for lubricated conditions K 0 18 for zinc plated and dry conditionsSteel Bolt anchor suitable for use in concrete Diameters 8 10 12 16 20 and 24 Design table for several longs2 Condition A supplementary reinforcement provided 3 Load combinations shall be per ACI 318M 14 5 3 1 4 Shear load acts through center of bolt group Yec V 1 0 5 For anchor group subject to moment the anchor tensile load is designed using elastic analysis and there is no redistribution of the forces between highly stressed and less 2007 12 19 nbsp 0183 32 Anchor Bolt Design Load Combinaitons htex404040 Structural OP 18 Dec 07 10 45 Hello all I am in the process of designing anchor bolts for tension the shear will be resisted by base friction I am only looking at bolt strength not concrete at this point For referance I am using quot Wind Loads and Anchor Bolt Design for Petrochemical Facilities quot In