- 摘 要
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（同濟(jì)大學(xué)土木工程學(xué)院建筑工程系, 上海 200092）
［摘要］鋼木混合結(jié)構(gòu)主要由鋼框架、內(nèi)填輕型木剪力墻以及鋼木混合樓蓋組成。首先基于有限元軟件OpenSees建立了鋼木混合結(jié)構(gòu)數(shù)值模型，并利用鋼木混合結(jié)構(gòu)單層足尺試驗結(jié)果校核數(shù)值模型的有效性。繼而分別設(shè)計了不同內(nèi)填木剪力墻和鋼框架側(cè)向剛度比下的3,6,9層的鋼木混合結(jié)構(gòu)，按已驗證的數(shù)值模擬方法對結(jié)構(gòu)進(jìn)行建模，并按規(guī)范的設(shè)計反應(yīng)譜對20條地震記錄進(jìn)行調(diào)幅，對結(jié)構(gòu)進(jìn)行增量動力分析。根據(jù)分析結(jié)果，總結(jié)了鋼框架和內(nèi)填輕型木剪力墻間的剪力分配規(guī)律，定義了剪力分配系數(shù)κ，并提出其計算公式；評估了結(jié)構(gòu)的失效概率，進(jìn)而提出鋼木混合結(jié)構(gòu)抗震設(shè)計方法，最后給出相應(yīng)計算實例。
［關(guān)鍵詞］鋼木混合結(jié)構(gòu)； 增量動力分析； 抗震性能； 設(shè)計方法
中圖分類號：TU398+.6， TU973-3+1文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)23-0030-07
Seismic design method of multi-story steel-wood composite structure based on bearing capacity
Wang Xijun, Li Zheng, He Minjuan
(Department of Structural Engineering, Tongji University, Shanghai 200092, China)
Abstract:Steel-wood composite structure is mainly composed of steel frame, shear wall filled with light-weight wood and steel-wood composite floor. Firstly, the numerical model of steel-wood composite structure was established based on the finite element software OpenSees, and the validity of the numerical model was checked by the single-layer full-scale test results of the steel-wood composite structure. Then steel-wood composite structures, which have 3, 6 and 9 layers with different lateral stiffness ratio from shear walls with filled wood and steel frames, were designed, and the structures were modeled according to verified numerical simulation method, and the amplitudes of 20 seismic records were adjusted according to the design reaction spectrums of the code, and the incremental dynamic analysis of structure was conducted. According to the results of the analysis, shear force distribution rules between the steel frame and shear wall filled with light-weight wood was summed, and the shear force distribution coefficient κ was defined, and the calculation formula was put forward. The failure probability of the structure was evaluated, and then the seismic design method of steel-wood composite structure was put forward, and finally corresponding calculation examples were given.
Keywords:steel-wood composite structure; incremental dynamic analysis; seismic performance; design method
*上海市青年科技英才揚帆計劃（16YF1411800)，中央高?；究蒲袠I(yè)務(wù)費專項資金（2015KJ005）。
通訊作者：李征，博士，助理教授，Email：zhengli@#edu.cn。
