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李海旺1，王志平1，杜雷鳴2
(1 太原理工大學(xué)建筑與土木工程學(xué)院，太原030024; 2 山西工程職業(yè)技術(shù)學(xué)院，太原030009)[摘要] 以84m跨度的單榀鋼管拱桁架為研究對象，考察了其在水平行波效應(yīng)作用下的地震反應(yīng)，計算結(jié)果表明，行波效應(yīng)使桿件軸力響應(yīng)最值或者變大或者變小，各桿件軸力響應(yīng)最值出現(xiàn)在不同的視波速情況下。分析結(jié)構(gòu)在地震激勵下的桿件軸力響應(yīng)，有必要多選幾種波速計算，取其最不利結(jié)果。
[關(guān)鍵詞] 拱桁架；地震反應(yīng)；行波效應(yīng)；非線性Nonlinear earthquake response analysis of single steel tubular arch truss under travelling wave effect
LiHaiwang1, WangZhiping1, Du Leiming2
(1The Architecture and Civil Engineering Department of Taiyuan University of Technology ,Taiyuan 030024, China; 2 Shanxi Engineering Technical College, Taiyuan 030009, China)Abstract: Selecting sing steel tubular arch truss as the research object, the paper investigates the horizontal wave passage effect on the seismic responses of the structure. The arch truss analyzed is assumed to cover 84 meters. The results show that the maximal value of bars axial force are increased or decreased, and they are appeared not at the same velocity So, analyses the axial response of bars need to multiple count under some different velocities and select the worst result.
Keywords: arch truss, seismic behavior, wave passage effect, nonlinear
