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（北京市建筑設(shè)計(jì)研究院，北京 100045）

［摘要］中國科學(xué)技術(shù)新館工程，結(jié)構(gòu)體系復(fù)雜，運(yùn)用多種組合材料和結(jié)構(gòu)形式，根據(jù)現(xiàn)行建筑抗震規(guī)范要求，需進(jìn)行罕遇地震作用的性能評(píng)估，對(duì)薄弱環(huán)節(jié)進(jìn)行加強(qiáng)。鑒于結(jié)構(gòu)特點(diǎn)不適用振動(dòng)臺(tái)試驗(yàn)，因此運(yùn)用非線性有限元程序CANNY軟件，對(duì)剪力墻、預(yù)應(yīng)力框架和鋼-混凝土組合桁架建立合理的滯回模型，合理模擬滑動(dòng)支座和預(yù)應(yīng)力鋼絞線，重點(diǎn)分析了復(fù)雜混合體系的動(dòng)力特性和罕遇地震作用的非線性響應(yīng)，評(píng)估結(jié)構(gòu)的耗能能力，加強(qiáng)薄弱環(huán)節(jié)，提高結(jié)構(gòu)的抗震性能。探討復(fù)雜結(jié)構(gòu)非線性動(dòng)力彈塑性分析的手段和方法。

［關(guān)鍵詞］科技館；混合結(jié)構(gòu)；預(yù)應(yīng)力；CANNY；非線性；有限元；抗震

Nonlinear dynamic elastic-plastic analysis of  complex steel-concrete composite structure

Li Ting, Zhao Nan(Beijing Institute of Archtectural Design, Beijing 100045, China)

Abstract:The project of New Museum of Science and Technology of China, using a variety of combinations of materials and structural form,need evaluated the rare earthquake performance,and find out the weak links to  be strengthened. For structural characteristics of shaking table tests do not apply, the non-linear finite element program software CANNY is used for shear uall,prestressed frame and steel-concrete composite truss,  to establish a rational, reasonable hysteretic model,and simulate  sliding bearings.It focused on analyzing the complex dynamic characteristics of the hybrid systems, and the non-linear response  under rare earthquake, to assess the structure′s energy dissipation capacity, strengthen weak links, improve the structure  seismic performance.It explores  the means and methods of the composite structure for nonlinear dynamic elasto\|plastic analysis.

Keywords:science museum; composite structures; prestressed; CANNY; nonlinear; FEM;  seismic

作者簡介：李婷，高級(jí)工程師，Email：Biad1s1@126.com。

參考文獻(xiàn)

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