概论汶川地震后我国建筑抗震设计标准的修订_王亚勇重点解析.pdfVIP

42 5 Vol. 42 No. 5 2 0 0 9 5 CH INA CIVIL ENGINEER ING JOURNAL M ay. 2009 王亚勇 (, 100013) : 5# 12, , , 56 ( GB 50223) 2008)5 6 ( GB 50011) 2001) ( 2008)56 ( GB 50223) 2008) : ; ; 56 ( GB 50011) 2001) ( 2008 ): ; ; ; ; ; , , : ; ; + : TU375. 4 TU317 . 1 : A : 1000-131X (2009) 05-0001-12 An overview of recent revision of seism ic design codes after the 5# 1 W enchuan Earthquake W ang Yayong ( C ina Academy of Building Researc , Beijing 100013, C ina) Abstract: Lots of damages and collapses of buildings occurred in t eM ay 12W enc uan Eart quake. Based on field survey and study of damages of different types of bu ildings, a prompt revision of seism ic design codes of buildings as been carried out. T emain revisions to / Standard for classification of seism ic protection of building constructions GB 50223) 20080 and / Code for seism ic design of buildings GB 50011) 20010 are summarized ere. T e defin ition of seism ic fortification class for buildings as been renew ed, t e seism ic class for bu ildings suc as sc oo,l osp ital and t osew it large occupancy as been en anced in t e seism ic category, and t e evacuation s elter and information center ave been given a ig er seism ic class in t e GB 50223) 2008 code. M ain issues in t e revision ofGB 50011) 2001 include: ( a) adjustment of t e zon ing intensity for provinces of Sic uan, S anxi and Gansu, ( b) basic conceptual design for retaining wall and foundation of bu ildings in t e mountainous areas, ( c) regulation of build ing configuration,