ASI Angle Cleat Design Guide 5 pdf PDF

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Connection Design Guide 5 SIMPLE CONNECTIONS

Design Guide 5: Angle Cleat Connections

First Edition 2007 Author T.J. Hogan Contributing author and editor S.A. Munter

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Design Guide 5.

Angle cleat connections

by

T.J.Hogan

contributing author & editor

S.A.Munter

first edition - 2007

i

AUSTRALIAN STEEL INSTITUTE (ABN)/ACN (94) 000 973 839 Design Guide 5: Angle cleat connections

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Copyright © 2007 by AUSTRALIAN STEEL INSTITUTE

Published by: AUSTRALIAN STEEL INSTITUTE

All rights reserved. This book or any part thereof must not be reproduced in any form without the written permission of Australian Steel Institute. Note to commercial software developers: Copyright of the information contained within this publication is held by Australian Steel Institute (ASI). Written permission must be obtained from ASI for the use of any information contained herein which is subsequently used in any commercially available software package. FIRST EDITION 2007 (LIMIT STATES) National Library of Australia Cataloguing-in-Publication entry: Hogan, T.J. Design Guide 5: Angle cleat connections st

1 ed. Bibliography. ISBN 978 0 9804015 2 3 (pbk.). 1. Steel, Structural—Standards - Australia. 2. Steel, Structural—Specifications - Australia. 3. Joints, (Engineering)—Design and construction. I. Munter, S.A. II. Australian Steel Institute. III. Title (Series: Structural steel connection series).

This publication originated as part of Design of structural connections First edition 1978 Second edition 1981 Third edition 1988 Fourth edition 1994

Also in this series: Design capacity tables for structural steel. Volume 3: Simple connections – open sections Handbook 1: Design of structural steel connections Design Guide 1: Bolting in structural steel connections Design Guide 2: Welding in structural steel connections Design Guide 3: Web side plate connections Design Guide 4: Flexible end plate connections Design Guide 6: Seated connections Disclaimer: The information presented by the Australian Steel Institute in this publication has been prepared for general information only and does not in any way constitute recommendations or professional advice. While every effort has been made and all reasonable care taken to ensure the accuracy of the information contained in this publication, this information should not be used or relied upon for any specific application without investigation and verification as to its accuracy, suitability and applicability by a competent professional person in this regard. The Australian Steel Institute, its officers and employees and the authors and editors of this publication do not give any warranties or make any representations in relation to the information provided herein and to the extent permitted by law (a) will not be held liable or responsible in any way; and (b) expressly disclaim any liability or responsibility for any loss or damage costs or expenses incurred in connection with this publication by any person, whether that person is the purchaser of this publication or not. Without limitation, this includes loss, damage, costs and expenses incurred as a result of the negligence of the authors, editors or publishers. The information in this publication should not be relied upon as a substitute for independent due diligence, professional or legal advice and in this regards the services of a competent professional person or persons should be sought.

design guide 5 angle cleat connections, first edition

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CONTENTS Page

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Page List of figures List of tables Preface About the author About the contributing author and editor Acknowledgements

v vi vii viii viii ix

1 CONCEPT OF DESIGN GUIDE ................. 1 1.1 Background 1 2 DESCRIPTION OF CONNECTION ............ 2 3 TYPICAL DETAILING OF CONNECTION .. 3 3.1 Double angle cleat 3 3.2 Single angle cleat 4 4 DETAILING CONSIDERATIONS................ 5 5 COMPLIANCE WITH AS 4100 REQUIREMENTS FOR CONNECTIONS ... 7 6 BACKGROUND INFORMATION ................ 8 7 BASIS OF DESIGN MODEL—DOUBLE ANGLE CLEATS ........................................ 9 8 BASIS OF DESIGN MODEL—SINGLE ANGLE CLEAT......................................... 10 9 CONNECTION GEOMETRY .................... 11 10 RECOMMENDED DESIGN MODEL— DOUBLE ANGLE CLEATS— SUMMARY OF CHECKS ......................... 12 10.1 DESIGN CHECK NO. 1— Detailing limitations 13 10.2 DESIGN CHECK NO. 2— Design capacity of bolts to supporting member 14 10.3 DESIGN CHECK NO. 3— Design capacity of bolts to supported member 15 10.3.1 Alternative ’A’—Single line of bolts to supported member 15 10.3.2 For Alternative ’B’—Double line of bolts to supported member 15 10.4 DESIGN CHECK NO. 4—Design capacity of angle cleats (Shear, bending, block shear) 16 10.5 DESIGN CHECK NO. 5—Design capacity of supported member (Shear—Uncoped or coped) 17 10.6 DESIGN CHECK NO. 6—Design capacity of supported member (Block shear—Coped section) 18

10.7 DESIGN CHECK NO. 7—Design capacity of supported member (Bending of coped section) 10.8 DESIGN CHECK NO. 8—Beam rotation check 10.9 DESIGN CHECK NO. 9—Local stability of coped supported member 10.10 DESIGN CHECK NO. 10—Local capacity of supporting member 10.10.1 Single-sided connection 10.10.2 Double-sided connection

19 20

21 22 22 23

11 RECOMMENDED DESIGN MODEL— SINGLE ANGLE CLEAT— SUMMARY OF CHECKS ..........................24 11.1 DESIGN CHECK NO. 1— Detailing limitations 25 11.2 DESIGN CHECK NO. 2— Design capacity of bolts to supporting member 26 11.3 DESIGN CHECK NO. 3— Design capacity of bolts to supported member 27 11.3.1 Alternative ’A’—Single line of bolts to supported member 27 11.3.2 Alternative ’B’—Double line of bolts to supported member 27 11.4 DESIGN CHECK NO. 4—Design capacity of angle cleat (Shear, bending, block shear) 28 11.5 DESIGN CHECK NO. 5—Design capacity of supported member (Shear—Uncoped or coped) 29 11.6 DESIGN CHECK NO. 6—Design capacity of supported member (Block shear—Coped section) 30 11.7 DESIGN CHECK NO. 7—Design capacity of supported member (Bending of coped section) 31 11.8 DESIGN CHECK NO. 8—Beam rotation check 32 11.9 DESIGN CHECK NO. 9—Local stability of coped supported member 33 11.10 DESIGN CHECK NO. 10—Local capacity of supporting member 34 11.10.1 Single-sided connection 34 11.10.2 Double-sided connection 35 12 OTHER DESIGN CONSIDERATIONS ......36 13 REFERENCES..........................................37

design guide 5 angle cleat connections, first edition

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14 DESIGN EXAMPLES ............................... 38 14.1 Design example No. 1— Connection capacity with single-sided double AC connection to supporting column 38 14.2 Design example No. 2— Connection capacity with single-sided single AC connection to supporting beam 41 15 DESIGN CAPACITY TABLES .................. 44 15.1 Configuration A—Double angle cleat single line of bolts to supported member 44

Page 15.2 Configuration B—Double angle cleat double line of bolts to supported member 49 15.3 Configuration C—Single angle cleat single line of bolts to supported member 54 15.4 Configuration D—Single angle cleat double line of bolts to supported member 57 APPENDICES A Limcon software B ASI Design Guide 5 comment form

design guide 5 angle cleat connections, first edition

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iv

LIST OF FIGURES

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Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18

Page

Page

Typical single and double angle cleat connections .................. 2 Alternative ‘A’—Single line of bolts to beam web .......................... 3 Alternative ‘B’—Double line of bolts to beam web .......................... 3 Double line of bolts to supporting member .......................................... 3 Alternative ‘A’—Single line of bolts to beam web .......................... 4 Alternative ‘B’—Double line of bolts to beam web .......................... 4 Single line of bolts to supporting member .......................................... 4 Coping beam flange(s) for column web connection............................... 6 Coping beam bottom flange to clear bolts ....................................... 6 Typical bolt placement .................... 6 Deformation of the angle cleat........ 7 Connection geometry ................... 11 Block shear capacity areas— Double angle cleats ...................... 16 Block shear capacity parameters— Supported member ....................... 18 Bending—Coped supported member ........................................ 19 Parameters for rotation check....... 20 Local stability parameters— Coped supported member ............ 21 Supporting members with supported member on one side .... 22

Figure 19 Supporting members with supported members on two sides..23 Figure 20 Block shear capacity areas— Single angle cleat ..........................28 Figure 21 Block shear capacity parameters— Supported member........................30 Figure 22 Bending-coped supported member .........................................31 Figure 23 Parameters for rotation check .......32 Figure 24 Local stability parameters— Coped supported member .............33 Figure 25 Supporting members with supported member on one side .....34 Figure 26 Supporting members with supported members on two sides..35 Figure 27 Single-sided double AC connection to supporting column ...38 Figure 28 Single-sided single AC connection to supporting beam......41 Figure 29 Geometry configuration A— Double angle cleat single line of bolts to supported member........44 Figure 30 Geometry configuration B— Double angle cleat double line of bolts to supported member........49 Figure 31 Geometry configuration C— Single angle cleat single line of bolts to supported member........55 Figure 32 Geometry configuration D— Single angle cleat double line of bolts to supported member........57

design guide 5 angle cleat connections, first edition

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LIST OF TABLES Page

Page

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Table 1

Table 2

Table 3

Table 4

Table 5

Angle cleat design capacity table— Configuration A, double angle cleat single line of bolts to supported member, Member > 500 mm deep............... 45 Angle cleat design capacity table— Configuration A, double angle cleat single line of bolts to supported member, Member > 350 mm but < 500 mm deep ............................................. 46 Angle cleat design capacity table— Configuration A, double angle cleat single line of bolts to supported member, Member > 250 mm but < 350 mm deep ............................................. 47 Angle cleat design capacity table— Configuration A, double angle cleat single line of bolts to supported member, Member 200 mm deep.................. 48 Angle cleat design capacity table— Configuration B, double angle cleat double line of bolts to supported member, Member > 500 mm deep............... 50

Table 6

Angle cleat design capacity table— Configuration B, double angle cleat double line of bolts to supported member, Member > 350 but < 500 mm deep ..............................................51 Table 7 Angle cleat design capacity table— Configuration B, double angle cleat double line of bolts to supported member, Member > 250 but < 350 mm deep ..............................................52 Table 8 Angle cleat design capacity table— Configuration B, double angle cleat double line of bolts to supported member, Member 200 mm deep ..................53 Table 9 Angle cleat design capacity table— Configuration C, single angle cleat single line of bolts to supported member, Member > 300 mm deep ...............55 Table 10 Angle cleat design capacity table— Configuration C, single angle cleat single line of bolts to supported member, Member < 300 mm deep ...............56

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PREFACE This new series of connection publications by the Australian Institute of Steel (ASI) covering capacity tables, theory and design of individual simple connections will be known as the Structural Steel Connections Series, Part 1: 1st ed. 2007 (“Connection Series, Part 1”). This Connection Series, Part 1 details the method of design and provides capacity tables and detailing parameters for a range of simple connections commonly used for structural steel in Australia. Connections have a major engineering and economic importance in steel structures influencing design, detailing, fabrication and erection costs. Standardisation of design approach integrated with industry detailing is the key to minimum costs at each stage. This Connections Series, Part 1 in conjunction with the future Connection Series, Part 2 for rigid connections (collectively the Structural Steel Connections Series or “Connection Series”) replaces and enhances an ASI flagship publication first released in 1978 at which time connection design theories were developed for the purpose of generating and releasing connection capacity tables. The first three editions were released in permissible stress format. The fourth edition Design of Structural Connections (often referred to as the Green Book) was released in 1994 in limit state format but there was no subsequent release of a limit state companion document containing connection design capacity tables. Design Guide 5 covers the single and double angle cleat (AC) connection and references Handbook 1, Design of structural steel connections which is the hub of a new Connection Series expanding and revising the elemental connection theory contained in previous editions of Design of Structural Connections. This allows the single and double angle cleat connection model to remain concise and practical for efficient design assessment. The presentation of the connection model follows a stylised calculation page format with a numbered DESIGN CHECK procedure to simplify the design capacity assessment. This robust connection is returning to favour due to the growth of efficient computer numeric control fabrication processes. The most significant upgrades in reviewing and consolidating the previous AC design model are the detailing limitations, refinement of block shear assessments and rotation checks. Improvements have been made to local stability of coped beams and local capacity of the supporting member checks. Design Guide 5 includes standardised detailing and design capacity tables for the single and double angle cleat connection designed using the design model in this Guide. The design capacity tables have been rigorously checked firstly by hand calculation, then by spreadsheet and also using the Limcon software for consistency and validity. An ASI connections survey revealed that practising engineers in designing common connections firstly consult their design capacity tables, then if required, follow with hand calculations, spreadsheet formulation and finally detailed computer assessments. Special surveys of the Australian steel industry provided best practice for component and dimensional standardisation. The results tabulated for each single and double angle cleat configuration are only for the dimensional and geometrical limitations and design actions specified. Any additional loads, load combinations, geometry arrangement beyond the limits specified must be undertaken by a competent professional person and supported by engineering research, theory or principles. The new Connections Series format with separate design guides for individual connection types is intended to facilitate addition to or revision of connection model theory using relevant new local or international research as deemed appropriate by the ASI. Connection models developed using the Handbook 1 theory follow a stylised page format with a numbered DESIGN CHECK procedure to simplify connection capacity assessment. Engineering Systems has worked closely with the Australian Steel Institute to further develop Limcon as the companion program for this new Connection Design Guide series. The latest version of Limcon fully implements the new connection design models and it was employed in checking the design tables. The Limcon output for one or more of the worked examples is included in an appendix to each Design Guide. The program is an efficient tool covering the full range of structural connections, including those beyond the scope of the Design Guide capacity tables. An appendix to each Design Guide also contains an ASI comment form. Users of this Publication are encouraged to photocopy this one page form and forward any suggested improvements which may be incorporated into future editions. T.J. Hogan S.A. Munter design guide 5 angle cleat connections, first edition

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ABOUT THE AUTHOR Tim Hogan is Director of SCP Consulting Pty Ltd. His academic achievements include a Bachelor of Engineering from the University of NSW with 1st Class Honours and the University Medal. Post graduate qualifications include a Master of Engineering Science and a Master of Business Administration. Tim is a Member of the Institution of Engineers Australia with CPEng and FIE Aust. status. His early experience was on bridge design and construction with the NSW Public Works Department and subsequently as Development Engineer and then Engineering Manager with the Australian Institute of Steel Construction until 1980. Consulting experience with SCP Consulting since 1980 has included design and supervision of large steel framed buildings, industrial buildings, mill buildings, retail developments, defence infrastructure and composite steel-concrete buildings. His published works deal primarily with the areas of composite construction, steel connections, fabrication and erection of steel structures and he was a major contributor and editor of the Commentary to AS 4100. He is a member of a number of Standards Australia Committees dealing with steel and composite structures and is currently Chairman of Committee BD-001 Steel Structures and BD-032 Composite Construction. He received an award from Standards Australia for his contributions to writing of Australian Standards.

ABOUT THE CONTRIBUTING AUTHOR AND EDITOR Scott Munter is now the National Structural Decking Manager for BlueScope Lysaght. He was formerly the National Manager—Engineering & Construction for the Australian Steel Institute (ASI) and worked in this role from 2000 to 2007. This key role involved ...