ISO-10721-1-1997.pdf
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1、INTERNATIONAL STANDARD IS0 10721 -I First edition 1997-02-01 Steel structures - Part 1: Materials and design Structures en acier - Partie I: Matbriaux et conception This material is reproduced from IS0 documents under International Organization for Standardization (ISO) Copyright License number IHSI
2、ICCIl996. Not for resale. No part of these IS0 documents may be reproduced in any form, electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consent of IS0 (Case postale 56,1211 Geneva 20, Switzerland, Fax +41 22 734 10 79)
3、, IHS or the IS0 Licensers members. Reference number IS0 10721-1:1997(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/03/2007 21:55:40 MDTNo reproduction or networking permitted
4、 without license from IHS -,-,- IS0 107214:1997(E) CONTENTS Page 1 SCOPE 1 2 NORMATIVE REFERENCES 1 3 DEFINITIONS AND SYMBOLS . 2 3.1 Definitions 2 3.2 List of svmbols 5 4 DOCUMENTATION OF THE DESIGN . 11 4.1 4.2 4.3 Calculations . 1 1 Testing . 11 Documentation 1 1 5 BASIC DESIGN PRINCIPLES . 11 5.
5、1 5.2 5.3 Obiectives and aeneral recommendations . 11 Limit states 12 Desion situations and member resistance . 12 5.3.1 5.3.2 5.3.3 General . 12 Design situations . 12 Member resistance . 13 6 BASIC VARIABLES 13 6.1 6.2 General . 13 Actions . 13 6.2.1 6.2.2 General . 13 Design value 14 6.3 Material
6、s 14 6.3.1 6.3.2 6.3.3 6.3.4 General . 14 Structural steels 14 Connecting devices . 14 Testing and inspection of materials 15 6.4 6.5 Geometrical parameters . 15 Desian vahe of resistance . 15 Q IS0 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced o
7、r utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 9 CH-1211 Gen a=llOOnet; p=iso; o=isocs; s=central Printed in Switzerland ii Copyri
8、ght International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/03/2007 21:55:40 MDTNo reproduction or networking permitted without license from IHS -,-,- 0 IS0 IS0 10721-l :1997(E) Page ANALYSIS OF STR
9、UCTURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7 7.1 General . 15 7.2 Structural behaviour . 16 7.3 Methods of analvsis 16 7.3.1 General . 16 7.3.2 Elastic analysis 16 7.3.3 Elastic-plastic analysis 16 7.3.4 Plastic analysis 16 UL
10、TIMATE LIMIT STATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8 8.1 Member desian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11、 . . . . 17 8.1.1 General . 17 8.1.2 Cross-sectional resistance 17 8.1.3 Member stability . 17 8.2 Resistance of members . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8.2.1 Member strength . . . . . . . . . . . . . . .
12、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8.3 Classification of cross sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 General . 18 Definitions of classes 18 Maxi
13、mum width-thickness ratios of elements subjected to compression and/or bending . 19 8.3.1 8.3.2 8.3.3 8.4 Flexural buckling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8.4.1 Effective buckling le
14、ngth 19 8.4.2 Slenderness . 19 8.4.3 Compression resistance . 20 8.4.4 Buckling strength fc 20 8.4.5 Compression members subjected to moments . 20 8.4.6 Buckling of built-up members . 21 8.5 Torsional and lateral torsional bucklinq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15、. 21 8.5.1 Torsional buckling 21 8.5.2 Lateral torsional buckling . 21 8.5.3 Buckling strengths-f, and fcL 21 8.5.4 Bracing of beams, girders and trusses . 22 8.6 Bucklina of plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16、. . . . . . . . . . . . . 22 8.6.1 8.6.2 8.6.3 8.6.4 8.6.5 General . 22 Uniaxial force or in-plane moment . 22 Shear resistance of webs . 23 Combined forces . 23 Webs or panels subdivided by stiffeners . 23 Copyright International Organization for Standardization Provided by IHS under license with I
17、SO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/03/2007 21:55:40 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 10721-l : 1997(E) 0 IS0 Page Connections. ueneral reauirements . . . . . . . . . . . . . . . . . . . . . . . . _._. 24 8.7 8.8 Bol
18、ted connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _. 25 8.8.1 8.8.2 8.8.3 8.8.4 8.8.5 8.8.6 General . 25 Bolting details 25 Strength of connections with bolts and rivets . 26 Slip coefficients . 26 Deduct
19、ion for holes 26 Length of connection 27 Welded connections . 27 8.9 Scope . 27 General requirements . 28 Types of welds 29 Design assumptions . 29 Design provisions . 30 Complete joint penetration groove welds in butt and tee joints . 30 Fillet welds . 32 Plug and slot welds . 34 8.9.1 8.9.2 8.9.3
20、8.9.4 8.9.5 8.9.6 8.9.7 8.9.8 8.10 Joints in contact bearinq 34 SERVICEABILITY LIMIT STATES 34 9 10 FATIGUE . . . . . . . . . . . . . . . . . . . . . . . 35 ScoDe . 1*.,. 35 10.1 10.1 .I General . 35 10.1.2 Limitations . . . 35 10.1.3 Situations in which no fatigue assessment is required . 35 10.2 F
21、atique assessment procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 10.2.1 Fatigue assessment based on nominal stress range . 36 10.2.2 Fatigue assessment based on a geometric stress range 37 10.3 Fatiaue loading 37 10.4 Fatiaue stress soec
22、tra . 37 10.4.1 Stress calculation 37 10.4.2 Design stress range spectrum . 38 10.5 Fatiaue strenath . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * 38 Definition of fatigue strength curves for classified structural details . . . . . .
23、. . . . . . . . . . . . m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Definition of reference fatigue strength curves for non-classified details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 10.5.1 10.5.2 Fatique s
24、trenath modifications 39 Partial safetv factors . 39 10.6 10.7 iv Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/03/2007 21:55:40 MDTNo reproduction or networking permitted withou
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