Quantifying the effect of improved school and residential building codes for tornadoes in community resilience  

作　　者：Wanting(Lisa)Wang John W.van de Lindt 

机构地区：[1]Department of Civil and Environmental Engineering,Colorado State University,U.S.A

出　　处：《Resilient Cities and Structures》2022年第1期65-79,共15页韧性城市与结构（英文）

基　　金：The Center for Risk-Based Community Resilience Planning is a NIST-funded Center of Excellence;the Center is funded through a cooper-ative agreement between the U.S.National Institute of Standards and Technology and Colorado State University(NIST Financial Assistance Award Numbers:70NANB15H044 and 70NANB20H008).

摘　　要：Tornadoes can destroy or severely damage physical infrastructure including buildings in a community.This can result in direct losses but also indirect losses such as the closure of key social institutions reverberating further through the community(e.g.,schools).Despite significant losses in past events,building codes and standards have not previously included tornado hazards because of the relatively low probability of a direct strike.The recent release of the ASCE 7-22 standard considers tornadoes for Risk Category 3 and 4 buildings,i.e.ranging from schools to critical facilities.This study proposes a series of design combinations of a reinforced masonry school building with different performance targets intended to enable schools to reopen sooner.Tornado fragilities were developed for a school building having improved designs using tornado loads determined based on the new tornado chapter in ASCE 7-22,and then integrated into a community level model with school attendance zones to examine the effect.The ultimate goal in this study is to investigate the effect of improving school building designs would have on maintaining school continuity(and more rapid return)for school children.

关 键 词：ASCE 7-22 Community resilience Improved designs School buildings Wind fragilities TORNADO 

分 类 号：G63[文化科学—教育学]