Procedures into Section 3 and Appendices B and C The Code was converted to SI metric units and provided conversion factors and Imperial units in Appendix E The fifth edition 1991 reflected the steel standard s recognition of the preparation of five types of fabrication and erection documents which may be produced in fulfilling a steel construction contract These High strength bolts are well established as economical and effi cient devices for connecting structural steel When North American design and construction practices are followed theSpecification for Structural Joints Using ASTM A325 or A490 Bolts Approved by the Research Council on Structural Connections sets the basic rules for their use 2018 03 26 nbsp 0183 32 Construction loads must not be placed on any structural steel unless such framework is safely bolted welded or otherwise adequately secured When used temporary bracing must be in place and properly installed in conjunction with the steel erection plan to ensure the stability of the structure Temporary bracing can be removed only with the approval Structural Bolts Installation AS4100 1998 WORKING DEFINITIONS Torque is not used as a measure for the tensioning of structural bolting Bolt torque values are not shown in AS4100 TORQUE The energy taken to twist the nut up the thread of the bolt Measured in Nm TENSION The force generated in the bolt to clamp the steel plies together Measured in kN AS1252 Specific design requirements can be found in CSA Standard S16 09 Clauses 22 2 5 and 23 8 4 and in Table 3 The tabulated values for ultimate shear resistance in bearing type connections and tensile resistances of A325 and A490 bolts in Part 3 of the CISC Handbook of Steel Construction may be used for F1852 and F2280 bolts respectively whereas smaller values for the 5 slip

Correct procedure for flange bolting Installation Procedure The most common cause of leaky gasket joints is improper installation procedures Care shall be taken at all stages given below Cutting of Soft Gaskets First cut punch bolt holes Cut the bolt holes slightly larger than the bolts to ensure proper seating Never cut out a gasket by hammering material against the 2 1 Erection of structural steel 2 1 1 Pre installation check 1 Foundation and anchor bolts Final dimension Visual check 2 Welding Welding procedure specs Welder performance qualification test Proper fit up appearance and size of weld 3 Visual checks Shape and size Contact surface of joint and ensure Sharp comers and burs are removed Where Hi strength 🕑 Reading time 1 minute Riveting and bolting are the most commonly adopted procedure used for connecting steel members in a steel structure The detailed procedures for performing proper riveting and bolting operations are discussed 2020 09 23 nbsp 0183 32 Structural Bolting Handbook 2016 a reference guide for fabricators erectors ironworkers inspectors and all others involved in bolting for structural steel buildings and bridges 4 quot by 8 quot pocket sized convenience 144 pages This 2016 edition of the Structural Bolting Handbook is based principally upon the June 2014 edition of theSpecific design requirements can be found in CSA Standard S16 09 Clauses 22 2 5 and 23 8 4 and in Table 3 The tabulated values for ultimate shear resistance in bearing type connections and tensile resistances of A325 and

Bolting steel structures Bolting has become the most widely used versatile and reliable method for making field connections in structural steel members The major advantages of bolting over welding are 1 Economy speed and ease of erection 2 Reliability in service 3 Relative simplicity of inspection 4 Fewer and less highly skilled operators required 5 Good performance under proposes to unload and erect the structural steel girders The girder erection procedure shall include detailed design notes and Shop Drawings that are sealed signed and dated by a Professional Engineer registered or licensed to practice in the Province of Manitoba necessary to describe the following and assume full responsibility that the design is being followed 1 AISC Weight – the weight of structural steel as defined by the AISC Anchor Bolt – an embedded bolt or threaded connection used to attach column bases and transfer loads to the foundation ASTM – The American Society of Testing and Materials and the organization that generally establishes the grades of structural steel Beam – a structural element that usually carries its PROCEDURES FOR HIGH STRENGTH BOLT ED JOINTS To properly address high strength bolting issues the Research Council on Structural Connections RCSC developed the 2004 edition of the Specification for Structural Joints Using ASTM A325 or A490 Bolts a free download from www boltcouncil org This specification examines the design inspection and material While high strength bolts are one of the most important elements of the structural system of modern steel frame buildings and other structures their installation is frequently misunderstood Some of the misunderstanding is a holdover from methods used in earlier times and some is due to a misunderstanding of the principles of connections using high strength bolts The first

2022 01 07 nbsp 0183 32 The method statement for bolt tightening describes the methodology and testing for torquing bolts in structural steel used in mechanical equipment provided to commercial buildings plants refineries and their equipment structures Scope of Work The scope of work includes bolt tightening requirements of all mechanical equipment structural joints and sections showing Structural Joints Using High Tensile Steel Bolts was published in January 1951 Since that time the Council has published 18 successive editions Each was developed through the delibera tions and approval of the full Council membership and based upon past successful usage advances in the state of knowledge and changes in engineering design practice This edition of the Figure 1 Marked nut bolt amp steel before and after 2 3 turn For reference values from table 8 1 of the Research Council on Structural Connection s AISC RCSC Specification for Structural Joints Using High Strength Bolts 2020 Inspection Structural Bolting ASTM F3125 F3125M is a structural bolt specification covering inch and metric bolt grades This specification contains 4 inch series bolting grades A325 F1852 A490 and F2280 These will be addressed in this article When looking at the mechanical requirements of bolts it appears that a grade A325 and SAE J429 Grade 5 are identical as do the grade A490 1 The final level of bolt tightening in general structural bolting using commercial bolts – Category 4 6 S 2 A final level of bolt tightening using high strength structural bolts – Category 8 8 S Different design values must be applied than for procedures 8 8 TF and 8 8 TB using the same bolts as discussed on page 52

Publications Structural Bolting Handbook 2016 20 00 Add to cart Download Flyer and Order Form Based upon the 2014 edition of the RCSC Specification for Structural Joints using High Strength Bolts and the 2016 edition of the AISC Specification for Structural Steel Buildings with references to the prior 2009 RCSC and 2010 AISC 1 Structural steel All structural steel shall conform to ASTM A36 JIS SS400 or equal 2 Bolts and Nuts a Common bolts shall be M16 bolt unless otherwise noted and shall conform to ASTM A307 JIS SS400 or equal b High strength bolts shall be M20 bolt unless otherwise noted and shall conform to ASTM A325M TYPE I or equal One high BOLT TIGHTENING PROCEDURE AND METHOD STATEMENT 1 Purpose The purpose of this procedure is to provide the methodology and testing of bolt tightening bolt torqueing of structural steel work in all supply mechanical equipment to the commercial buildings plants and refinery project and its equipment structures 2 Scope of Work The scope of work covers the Anchor bolts shall be fully tightened only after the base plates have been grouted PIP STS05130 Erection of structural and Miscellaneous steel specification Sec 6 4 3 i Prior to bolt tightening the QC Structural Inspector shall check the calibration certificates of all the torque wrenches amp prepare the torque record as per the SATIP M 001 01 16 2 BOLTING PROCEDURE FOR FLANGED CONNECTIONS – 16 2 1 Make sure that flanges amp gasket are align force tightening of bolts and nuts are not allowed to overcome non acceptable alignment tolerances 16 2 2 Apply lubricants Nickel based Anti Seize to studs threads over length and nut engagement amp face of nut which contacts flange Ensure that the nuts run freely