UDC
GB
NATIONAL STANDARD
OF THEPEOPLE'SREPUBLICOF CHINA
GB50011-2010
Code for SeismicDesign of Buildings
建筑抗震设计规范
Issuedon:Mav31.2010
Implementedon:December1,2010
Jointly Issued by Ministry of Housing and Urban-Rural Development of the People's
Republic of China General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China NATIONALSTANDARD
OFTHEPEOPLE'SREPUBLICOFCHINA
CodeforSeismicDesignofBuildings
GB50011-2010
ChiefDevelopment Department:Ministry of Housing and Urban-RuralDevelopment
of the People's Republic of China
ApprovalDepartment:MinistryofHousingandUrban-RuralDevelopment
of the People's Republic of China
ImplementationDate:December1,2010
China Architecture & Building Press
Beijing 2014 Announcement of Ministry of Housing and Urban-Rural
Development of the People's Republic of China
No.609
Announcement on Publishing the National Standard
Code for Seismic Design of Buildings
The standard Code for SeismicDesign ofBuildings has been approved as a national standard with the serial number of GB50011-2010 and shall be implemented on December 1,2010.Therein,Articles 1.0.2,1.0.4,3.1.1,3.3.1,3.3.2，3.4.1,3.5.2，,3.7.1,3.7.4，3.9.1,3.9.2,3.9.4，3.9.6,4.1.6, 4.1.8，4.1.9，4.2.2，4.3.2，4.4.5，5.1.1，5.1.3，5.1.4，5.1.6，5.2.5，5.4.1，5.4.2，5.4.3， 6.1.2，6.3.3，6.3.7，6.4,3，7.1.2，7.1.5，7.1.8,7.2.4，7.2.6，7.3.1,7.3.3，7.3.5，7.3.6, 7.3.8,7.4.1，7.4.4，7.5.7，7.5.8，8.1.3，8.3.1，8.3.6，8.4.1，8.5.1，10.1.3，10.1.12, 10.1.15,12.1.5,12.2.1and 12.2.9 are compulsory ones and must be enforced strictly.The formerstandardGB50011-2001CodeforSeismicDesignofBuildingsshallbeabolished simultaneously.
Authorized by the Research Institute of Standard and Norms of the Ministry, 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
May31,2010 Foreword
AccordingtotherequirementsofDocumentJianBiao[2oo6JNo.77-—Notice onPrintingand Distributing the Development andRevision Plan of Engineering Construction Standards and Codesin2o06（Batch1)issuedbytheformerMinistryofConstruction（MOC),thiscodewas revisedfromGB50011-2001CodeforSeismicDesignofBuildingsbyChinaAcademyof BuildingResearch(CABR)together with other design,survey,research and education institutions concerned.
During the process of revision, the editorial team summarized the experiences in building seismic damages duringWenchuan Earthquake in 2o08;adjusted the seismic precautionary intensities of the relevant disaster areas;added some compulsory provisions on the sites in mountainousareas,the arrangements of the infilled wall inframe structure,the requirements for staircase ofmasonry structure and theconstruction requirements of seismic structure;and raised the requirements for the details of the precast floor slab and for the reinforced elongation. Hereafter,the editorial team carried out studies on specific topics and some tests concerned, investigated and summarized the experiences and lessons from the strong earthquakes occurred in recent years home and abroad (including Wenchuan Earthquake),adopted the new research achievements of earthquake engineering,took theeconomic condition andconstructionpractices in China into account,widely collected the comments from the relevant design,survey,research and education institutions as well as seismic administration authorities nationwide.Through a multi- rounddiscussion,revision,substantiation,and withpilotdesigns as wellthefinalversionhas been completed andreviewed byan expertpanel.This newly-revised version comprises 14 Chapters and12Appendixes.Besides remainingthoseprovisionspartiallyrevisedin2o08,themain revisions at this edition are:
1.supplementing the provisions on the seismic measures forareas with the seismicprecaution Intensity7(0.15g)and Intensity8(0.30g);
2.adjusting theDesignEarthquake Groups of MainCities inChina in accordancewith GB18306-2001SeismicGroundMotionParameterZonationMapofChina;
3. improving the soil liquefaction discriminating equation; 4,adjusting thedampingmodificationparameter ofdesign responsespectrum; 5.modifying the damping ratio and the seismic adjusting factor for load-bearing capacity of
steel structure;
6. modifying the calculation methods of the horizontal seismic-reduced factor of seismically isolated structure;
7. supplementing the calculation method for horizontal and vertical earthquake action of large spanbuildings;
8. raising the seismic design requirements for concrete frame structure buildings and for masonrybuildingswithRCframesongroundfloors;
9.proposing the classification method for the seismic grades of steel structure buildings,and adjusting theprovisions on seismicmeasures,correspondingly;
1o. improving the seismic measures for multi-story masonry buildings, concrete wall buildings and reinforced masonry buildings;
11. expending the application scope of seismically isolated and energy-dissipated buildings; 12. adding the principles on performance-based seismic design of for buildings as well as the
seismic design provisions for large-span buildings, subterranean buildings, frame-bent structure factories,buildings with composite steel brace and concreteframe structures,and buildings with compositesteel frameandconcretecoretubestructures;
13.canceling the contents related to multi-story masonrybuildings with innerframes. Theprovisionsprinted in bold type are compulsory ones andmust be enforced strictly. The Ministry of Housing and Urban-Rural Development of thePeople's Republic of China is in
charge of the administration of this code and the explanation of the compulsory provisions hereof. China Academy of BuildingResearch （CABR）is responsible for the explanation of specific technical contents.All relevant organizations are kindly requested to sum up and accumulate your experiences in actual practices during theprocess of implementing this code.The relevant opinions andadvice,whenevernecessary,canbepostedorpassed onto theManagementGroupof the National StandardCodefor Seismic Design of Buildings of the China Academy of Building Research（Address:No.30,Beisanhuan EastRoad，Beijing City，100013，China;E-mail: GB50011-cabr163.com).
ChiefDevelopmentOrganization
ChinaAcademy of Building Research (CABR).
Participating Development Organizations:
Institute ofEngineering Mechanics (IEM)of China Earthquake Administration, China Architecture Design &Research Group,China Institute of Building StandardDesign &Research,BeijingInstitute ofArchitecturalDesign,China Electronics Engineering Design Institute,China Southwest Architectural Design andResearch Institute,China Northwest Architectural Design and Research InstituteChina NortheastArchitectureDesign andResearch Institute,East China Architectural Design and Research Institute,Central-SouthArchitectural Design Institute,the Architectural Design and Research Institute of Guangdong Province,ShanghaiInstituteof ArchitectureDesignandResearch,Instituteof BuildingDesign andResearch of Xinjiang Uygur Autonomous Region,Yunnan ProvinceDesign Institute,Sichuan Architectural Design Institute,Shenzhen General Institute of Architectural Design and Research,Beijing Geotechnical Institute,Shanghai Tunnel Engineering and Rail Transit Design and Research Institute，China Construction（Shenzhen）Design international，Architecture Design General Institute of China Metallurgical Group Corporation, China National Machinery Industry Corporation, China IPPR International Engineering CorporationTsinghua University,Tongji University,Harbin Institute of Technology, Zhejiang University, Chongqing University, Yunnan University, Guangzhou University,Dalian University of Technology and Beijing University of Technology
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