UDC GB NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA P GB50702-2011 Code for Design of Strengthening Masonry Structures 砌体结构加固设计规范 Issued on:July 26 2011 Implemented on:August 1 2012 tly 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 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 standard with a serial number of GB 50702-2011 and shall be implemented from August 1 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 9.1.7 and 10.1.4 are pulsory provisions and must be enforced strictly. Authorized by the Standard Rating Research Institute of Ministry of Housing and Urban-Rural Development of the People's Republic of China this Code is published by China Architecture Building Press. Ministry of Housing and Urban-Rural Development of the People'...