Preliminary investigation of seismic damage to two steel space structures during the 2013 Lushan earthquake  

作　　者：Dai Junwu Qu Zhe Zhang Chenxiao Weng Xuran 

机构地区：[1]Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,CEA

出　　处：《Earthquake Engineering and Engineering Vibration》2013年第3期497-500,共4页地震工程与工程振动（英文刊）

基　　金：the National Science and Technology Supporting Program(2012BAK15B02);the National Natural Science Foundation Program(50938006);the special program for Science Field Investigation on Lushan M7.0 Earthquake from the China Earthquake Administration

摘　　要：Severe damage to steel space structures is rarely reported when compared to other structural systems damaged during past major earthquakes around the world. Two gymnasiums of steel space structures in downtown Lushan County that were damaged during the 2013 M7.0 Lushan earthquake in China were investigated and the observations are summarized in this paper. Typical damage to these two steel space structures ranges from moderate to severe. Moderate damage includes global buckling and dislocation of bolted connections of truss members, and inelastic elongation of anchor bolts and sliding of pedestal plates of supports. Severe damage includes member fracture caused by local buckling, and fracture failure of anchor bolts and welds. The distribution of structural damage to these two structures is described in detail and future research opportunities are suggested.Severe damage to steel space structures is rarely reported when compared to other structural systems damaged during past major earthquakes around the world. Two gymnasiums of steel space structures in downtown Lushan County that were damaged during the 2013 M7.0 Lushan earthquake in China were investigated and the observations are summarized in this paper. Typical damage to these two steel space structures ranges from moderate to severe. Moderate damage includes global buckling and dislocation of bolted connections of truss members, and inelastic elongation of anchor bolts and sliding of pedestal plates of supports. Severe damage includes member fracture caused by local buckling, and fracture failure of anchor bolts and welds. The distribution of structural damage to these two structures is described in detail and future research opportunities are suggested.

关 键 词：Lushan earthquake steel space structure gymnasitun seismic damage member buckling fracture failure 

分 类 号：TU391[建筑科学—结构工程] TU352.11