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(1 江蘇大學(xué)理學(xué)院  鎮(zhèn)江 212013 ；2 江蘇大學(xué)基建處  鎮(zhèn)江 212013)
【提要】  根據(jù)建筑物造型的要求，江蘇大學(xué)體育館的屋蓋網(wǎng)架設(shè)計(jì)成了弧形，造型別致，但是對網(wǎng)架的設(shè)計(jì)，尤其是抗震設(shè)計(jì)提出了更高的要求。在網(wǎng)架設(shè)計(jì)相關(guān)資料的基礎(chǔ)上，對其進(jìn)行了抗震分析。應(yīng)用振型分解反應(yīng)譜法和時(shí)程分析法對網(wǎng)架結(jié)構(gòu)分別在小震、大震下的地震反應(yīng)進(jìn)行了二階段設(shè)計(jì)與驗(yàn)算，分析表明網(wǎng)架滿足強(qiáng)度、剛度及抗震設(shè)防要求。
【關(guān)鍵詞】  弧形網(wǎng)架  抗震分析  動力特性
Dynamic Characteristic Research of Archshaped Space Truss/Cai Jianliang1,Su Jun1,Liu Ronggui2(1 Faculty of Science,Jiangsu University,Zhenjiang 212013，China； 2 Capital Construction Department,Jiangsu University,Zhenjiang 212013,China)
Abstract:According to the architecture style of the gymnasium in Jiangsu University,the roof truss is designed arcshape.It puts a higher request in the design,especially in the seismic design.Two design stages of seismic analysis are presented and the response spectrum method and the time history method are applied to calculate such truss on the base of the related data of designing.The results show that the roof truss can meet the demand of strength and stiffness,and the aseismic target can be reached.
Keywords:archshaped space truss;antiearthquake analyzing;dynamic characteristic