According to the MOHURD's notice about drawing up or revising constructional standards in the scope of constructional industry,issued in 2004 (assigned as JIANBIAO ［2004］ No.99),this Code is drawing up referring to former standard worked up in 2008 and finalized through extensive investigation of advanced standards as well as user's comments.

This Code comprises 14 chapters,with the main technical contents as follows:general provisions;terms and symbols;basic requirements of structural design;loads and load combinations;types and arrangement of structure;calculation and analysis of structure;design of structural members;design of bracing;design of purlin and girt;design of connection and joint;design of enclosure system;protection of steel structure from corrosion;fabrication.

In this Code,the provision printed in bold type is compulsory and must be enforced strictly.

Ministry of Housing and Urban-Rural Development is in charge of administrating to this Code and explanation of the compulsory provision,and China Institute of Building Standard Design&Research Co.,Ltd.is responsible for the explanation of specific technical contents.During the process of implementing this Code,suggestions and comments,if any,are kindly requested,and please post or pass to China Institute of Building Standard Design&Research Co.,Ltd.(Address:No.2 Interwest International Center,9 Shouti South Road,Haidian District,100048,Beijing)

Chief drafting organization of this Code:China Institute of Building Standard Design&Research

Participating drafting organizations of this Code:Zhejiang University Tongji University Xi'an University of Architecture and Technology Tsinghua University Zhejiang Hangxiao Steel Structure Co.,Ltd.Butler (Shanghai) Co.,Ltd.ABC Building Systems (China) Co.,Ltd.China Academy of Building Research Steel Structure Committee of China Construction Metal Structure Association Jiangxi Province Architectural Design&Research General Institute

Chief drafting staff of this Code:Yu Yinquan Cai Yiyan Tong Genshu Zhang Qilin Chen Youquan Liu Chengzong Wang Saining Su Mingzhou Wang Zhe Chen Shaofan Shen Zuyan Zhang Wei Wu Ziwei Shi Yongjiu Jin Xinyang Zhang Yuefeng Zhang Hang Xu Qiuhua Shen Lin Hu Tianbin.

Chief examiners of this Code:Wang Dasui Gu Qiang Xu Houjun He Mingxuan Chen Jifa Wang Yuanqing Jiang Xueshi Ding Dayi Zhu Dan Guo Bin Guo Haishan.

Announcement by the Ministry of Housing and Urban-Rural Development of the People's Republic of China

No.991

Announcement on Publishing the National Standard of Technical Code for Structural Steel Light-weight Building with Gabled Frames

Technical Code for Structural Steel Light-weight Building with Gabled Frames has been approved as a national standard with a code number of GB 51022-2015,and will be implemented from August 1,2016 on.Article 14.2.5 is a compulsory provisions and must be enforced strictly.

Authorized by the Research Institute of Standards and Norms,Ministry of Housing and Urban-Rural Development of P.R.China(MOHURD),this Code is published and distributed by China Architecture&Building Press.

Ministry of Housing and Urban-Rural Development of the People's Republic of China

December 3，2015

目录

Announcement by the Ministry of Housing and Urban-Rural Development of the People's Republic of China

Foreword

1 General Provisions

2 Terms and Symbols

2.1 Terms

2.2 Symbols

3 Basic Requirements of Structural Design

3.1 Design Principles

3.2 Choice of Materials

3.3 Deformation Limits

3.4 Structural Requirements

4 Loads and Load Combinations

4.1 General Requirements

4.2 Wind Load

4.3 Snow Load on Roof

4.4 Seismic Action

4.5 Effect of Load Combinations and Seismic Action

5 Types and Arrangement of Structure

5.1 Types of Structure

5.2 Arrangement of Structure

5.3 Girt Arrangement

6 Calculation and Analysis of Structure

6.1 Calculation of Gabled Frame

6.2 Analysis of Seismic Action

6.3 Analysis of Thermal Action

7 Design of Structural Members

7.1 Calculation of Frame Members

7.2 Calculation of End Wall Members

8 Design of Bracing

8.1 General principles

8.2 Design of Longitudinal Bracing along Columns

8.3 Design of Transverse and Longitudinal Bracing in Roof

8.4 Arrangement of Diagonal Brace

8.5 Connection Joint of Rod Brace with Frame

9 Design of Purlin and Girt

9.1 Design of solid-web purlin

9.2 Truss Purlin

9.3 Design of Tensioned Rod

9.4 Design of Girt

10 Design of Connection and Joint

10.1 Welding

10.2 Connection Design

11 Design of Enclosure System

11.1 Design of Roofing and Cladding

11.2 Isolation and Heat Preservation

11.3 Design of Roof Drainage

12 Protection of Steel Structure from Corrosion

12.1 General Requirements

12.2 Design of Fire Resistance

12.3 Coating

12.4 Requirements of Steel Structure on Anti-rust

13 Fabrication

13.1 General Requirements

13.2 Processing of Steel Member

13.3 Configuration and Geometry of Members

13.4 Welds for Members

14 Transportation,Erection and Acceptance

14.1 General Requirements

14.2 Erection and Correction

14.3 High-strength Bolts

14.4 Welding and Other Fasteners

14.5 Erection of Purlins and Girts

14.6 Erection of Enclosure System

14.7 Acceptance

Appendix A Calculated Length of Frame Column

Explanation of Wording in This Code

List of Quoted Standards

14.2.5 During erection of steel structure of light-weight building with gabled frames, measures shallbe taken to guarantee structural stability according to requirements of design and construction conditions.