- 摘 要
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(交通運(yùn)輸部天津水運(yùn)工程科學(xué)研究所水工構(gòu)造物檢測、診斷與加固技術(shù)交通行業(yè)重點(diǎn)實(shí)驗(yàn)室，天津 300456)
［摘要］對比分析了國內(nèi)外6種無筋砌體結(jié)構(gòu)材料的本構(gòu)關(guān)系模型，指出了各個(gè)模型的優(yōu)缺點(diǎn)。推薦了力學(xué)特性合理、工程應(yīng)用性強(qiáng)的無筋砌體材料本構(gòu)關(guān)系模型，并采用該本構(gòu)關(guān)系模型進(jìn)行了一個(gè)典型底商多層砌體結(jié)構(gòu)彈塑性地震反應(yīng)的計(jì)算分析。通過脈動(dòng)測試，獲得了底商砌體結(jié)構(gòu)(震后)縱橫向一階固有頻率和扭轉(zhuǎn)頻率，可作為有限元模型合理性判定的依據(jù)；彈塑性地震反應(yīng)計(jì)算結(jié)果表明，該結(jié)構(gòu)的縱向?yàn)楸∪醴较?，?/span>9度大震的臥龍波作用下結(jié)構(gòu)嚴(yán)重破壞。
［關(guān)鍵詞］本構(gòu)關(guān)系; 砌體結(jié)構(gòu); 彈塑性分析; 地震反應(yīng)
中圖分類號：TU317+.1 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2014)15-0083-05
Calculation method of elasto-plastic seismic response of multi-story masonry structure with first floor used as shops
Liu Hongbiao, Liu Xianpeng, Zhang Qiang, Han Yang
(Key Laboratory of Harbor & Marine Structure Safety, Ministry of Communications, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China)
Abstract: Six kinds of constitutive relation models of unreinforced masonry structure were compared and analyzed at home abroad, and the advantages and disadvantages of each model were pointed out. The constitutive relation model of unreinforced masonry structure which is reasonable in mechanical characteristics and excellent in engineering application was proposed, and it is used to calculate and analysis the elasto-plastic seismic response of typical masonry structure with first story used as shops. The first order natural frequency and torsional frequency of the structure were acquired with pulsation measurement, which can be used as the basis for judging the rationality of the finite element model. The elasto-plastic seismic response of the typical masonry structure shows that the stiffness of longitudinal direction of the structure is weaker than the others, and the structure badly damaged under the Wolong 9 degree earthquake.
Keywords: constitutive relation; masonry structure; elasto-plastic analysis; seismic response
*國家自然科學(xué)基金項(xiàng)目（51308517），交通運(yùn)輸部天津水運(yùn)工程科學(xué)研究所基本科研項(xiàng)目（TKS140101)。
作者簡介：劉紅彪，博士，工程師，Email：liuhbhit@hotmail.com。
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