UDC
GB
NATIONAL STANDARD
OFTHEPEOPLE'SREPUBLICOFCHINA
GB50702-2011
Code for Design of Strengthening Masonry
Structures
砌体结构加固设计规范
Issued on:July26,2011
Implementedon:August1,2012
tlyIssuedby MinistryofHousing andUrban-Rural Development of thePeople's
Republicof China General Administration ofQuality Supervision,Inspection and QuarantineofthePeople'sRepublicof China
2 福 NATIONALSTANDARD
OFTHEPEOPLE'SREPUBLICOFCHINA
Code forDesign of Strengthening Masonry
Structures
GB50702-2011
Chief Development Department:Sichun Housing and Urban-Rural Development Department
ApprovalDepartment:MinistryofHousingandUrban-RuralDevelopmentofthe
People's Republic of China Implementation Date:August 1,2012
ChinaArchitecture&BuildingPress
Beijing 2014 Announcement of Ministry of Housing and Urban-Rural
Development of the People's Republic of China
No.1095
Announcement on Publishing the National Standard Code for
Design of Strengthening Masonry.Structures
Code for Design of Strengthening Masonry Structures has been approved as a national standardwitha serial numberof GB50702-2011 and shallbeimplementedfromAugust1,2012. Thereinto,Articles3.1.9,4.2.3，4.3.6，4.4.3，4.5.2，4.5.3，4.5.5，4.6.1，4.6.2，4.6.3, 4.7.5,4.7.7,9.1.7and10.1.4arecompulsoryprovisionsandmustbeenforced strictly.
Authorized bytheStandardRatingResearchInstituteof Ministryof HousingandUrban-Rural Development of thePeople'sRepublic of China,this Code is published byChina Architecture& Building Press.
Ministryof HousingandUrban-RuralDevelopmentofthePeople'sRepublicof China
July26,2011 Foreword
This Codewas formulated bySichuanInstituteof BuildingResearchjointlywith the organizations concerned according to the requirements of Development and Revision Plan of EngineeringConstructionStandards in1989issuedbytheformerMinistryof Construction.
During the process of formulating this Code,the drafting group conducts monographic study on various structurestrengthening methods,carried out extensive investigations and analysis and proving tests on key projects, summarized design experience in the strengthening of masonry structures in the past two decades and carried out comparative analysis of and referred to the foreign advanced standards and codes,based on which,it extensivelyasked for opinions of the organizations concerned and social public in various ways,conducted trial design and evaluation on the strengthening effects,thereafter modifiedmainprovisions repeatedly,and finalizedthis Code throughreview.
ThisCodecomprises 13chaptersand 2appendixes andthemain technical contents cover general provisions,terms and symbols,basicrequirements,materials,reinforced concretelayer strengthening,steel reinforcementmeshmortarlayer strengthening,sectional steel strengthening, external prestressedstrut strengthening,bondedfiberreinforcedpolymer strengthening,wirerope mesh-polymer modified cement mortar layer strengthening,strengthening with adding masonry counterfort column,construction strengthening of masonrystructures and masonry crack repairing.
Theprovisions printed in bold typein thisCodearecompulsory ones andmust beenforced strictly.
The Ministry of Housing and Urban-Rural Development is in charge of the administration of thisCodeand the explanation of the compulsory provisions;and Sichuan Institute of Building Researchis responsiblefortheexplanationof specifictechnical contents.All relevant organizations arekindly requested to sum up your experiences and accumulated data and information in actual practicesduring theprocess of implementingthis Code so asto enrichandimprovethequalityof this Code. The relevant opinions and advice, whenever necessary, can be posted or passed on to SichuanInstituteof BuildingResearch(Address:No.55,NorthThirdSection,FirstRingRoad, ChengduCity,610081,China)
Chiefdevelopmentorganizations of this Code:
Sichuan Institute of Building Research ChinaHuashiEnterprisesCompanyLimited
Participatingdevelopment organizations ofthis Code:
Hunan University Tongji University Harbin Institute of Technology Fuzhou University Wuhan University ChinaSouthwestArchitecturalDesignandResearchInstituteCORP.,LTD Shanghai Design Instituteof Civil Buildings ChongqingConstruction ScienceResearch Institute ShaanxiInstituteof BuildingResearch AralditeFineChemical Materials Co.,Ltd. Shanghai Anchors Building Materials Co.,Ltd. XiamenZhonglianStructural AdhesionCo.Ltd ShanghaiTonghuaStrengtheningEngineeringCo.,Ltd. NanjingKaishengArchitecturalDesign&ResearchInstituteCo.,Ltd.
Chief drafting staff of this Code:
LiangTanWuTiLiang ShuangWangXiaobo WuShanneng Shi ChuxianLiuXinyu-TangDaixin XuZhengxie Lin WenxiuChenDachuanLeiBo He Yingming Zhang ChengyingTang ChaolunChen Youming Zhang Tanxian LiuYannian Huang Gang Li Hongbing
Chief examiners of this Code:
LiuXilaDaiBaocheng Gao Xiaowang Gong Junqing Li Derong Zhang Shuyu-I Huang Xingdi Wang Qinglin Gu Tianchun Chen Zhou
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