- 摘 要
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(中國航空規(guī)劃建設(shè)發(fā)展有限公司,北京 100120)
[摘要]應(yīng)用MIDAS對比分析了山西科技館單體鋼結(jié)構(gòu)模型與鋼結(jié)構(gòu)和混凝土整體模型靜力計算結(jié)果,以及地震荷載作用下兩種模型中鋼結(jié)構(gòu)響應(yīng)的差異,在鋼結(jié)構(gòu)與混凝土整體設(shè)計驗算中,鋼結(jié)構(gòu)部分的地震響應(yīng)與單體鋼結(jié)構(gòu)模型的地震響應(yīng)相比增長很大。大震彈塑性時程分析給出了整體結(jié)構(gòu)模型在強震地面運動加速度記錄作用下的地震響應(yīng)以及出鉸狀態(tài),結(jié)構(gòu)在大震作用下仍具有顯著的強度與變形能力儲備,達到大震可修的設(shè)計目標(biāo)。應(yīng)用ANSYS結(jié)構(gòu)體系非線性屈曲分析方法以不同模型對比分析了鋼結(jié)構(gòu)的整體穩(wěn)定性,其中連續(xù)檁條對平面桁架側(cè)向穩(wěn)定性貢獻相當(dāng)明顯。
[關(guān)鍵詞]共同工作;地震響應(yīng);彈塑性;時程分析;幾何非線性;材料非線性
Design research of Shanxi Provincial Science and Technology Museum
Zhang Mansheng, Wang Shu, Guan Zhizhong, Zhang Qiming, Ge Jiaqi(China Aviation Planning and Construction Development Co., Ltd., Beijing 100120,China)
Abstract:The steel structural model of Shanxi Provincial Science Museum is analyzed with MIDAS software, and compared with the analysis result of the combined steel-concrete structure model of the museum, subject to the static load and the seismic load respectively. In order to obtain the differences of the structural response from these two models. The results show that the steel structure seismic response in combined structure model increases faster than that of the steel structural model. The seismic response of the ground acceleration and the plastic hinge during the ultimate earthquake are recorded by conducting the elastic-plastic time-history ultimate seismic analysis, showing that the structure owns the apparent strength and the displacement capacity saving, and reaches the objective of rehabilitation after ultimate seismic. The structural steel overall stability is analyzed by using the nonlinear buckling analysis in ANSYS package software for the different models, illustrating that the continuous purlin clearly contributes a lot to the lateral stability of the in-plane truss.
Keywords:common work;seismic response;elasto-plastic;time history analysis;geometric nonlinearity;material nonlinearity
作者簡介:張曼生(1981-),男,工程師,Email:zhekod1@yahoo.com.cn。
參考文獻
[1]葛家琪,王樹,等.河南藝術(shù)中心大劇院鋼屋蓋基于延性的性能化設(shè)計研究[J].建筑結(jié)構(gòu),2008,38(12):1-6.
[2]王樹,葛家琪,等.大劇院上下結(jié)構(gòu)共同工作對鋼屋蓋抗震性能影響分析[J].建筑結(jié)構(gòu),2008,38(12):6-10.
[3]王明珠,管志忠,王樹,等. 云頂花園綜合樓非線性地震響應(yīng)分析[C]//第七屆全國現(xiàn)代結(jié)構(gòu)工程學(xué)術(shù)研討會論文集,杭州,2007.
[4]謝禮立,翟長海.最不利設(shè)計地震動研究[J].地震學(xué)報,2003,25(3):250-261.
[5]沈聚敏,周錫元,高小旺,等. 抗震工程學(xué)[M]. 北京:中國建筑工業(yè)出版社,2002.
[6]北京邁達斯科技有限公司.MIDAS/Gen用戶手冊[M],2008.
[7]沈世釗,陳昕.網(wǎng)殼結(jié)構(gòu)穩(wěn)定性[M].北京:科學(xué)出版社,1999.
[8]李田.結(jié)構(gòu)時程動力分析中的阻尼取值研究[J].土木工程學(xué)報,1997,30(3).