單元體幕墻公母立柱協(xié)同工作性能研究*
趙宇1，惠存2，3，王斌2，王元清3，陶偉2
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（1 西南交通大學峨眉校區(qū)土木工程系，峨眉山 614202； 2 江河創(chuàng)建集團股份有限公司，北京 101300； 3 清華大學土木工程系，北京 100084）
［摘要］為研究單元體幕墻公母立柱的協(xié)同工作性能，分別對正、負風壓作用下的單根公立柱、單根母立柱、考慮玻璃約束作用與否和帶掛鉤與否情況下組合立柱進行了有限元數(shù)值模擬，研究其變形和屈曲性能，并對典型工況下的模型進行了試驗驗證。結(jié)果表明，在風壓作用下，單根公立柱或單根母立柱的變形較大，一階屈曲特征值較?。豢紤]公母立柱協(xié)同工作性能，可顯著降低立柱變形，提高其一階屈曲特征值和承載力；公母立柱之間的掛鉤在正風壓作用下可起到顯著作用，但在負風壓作用下幾乎不起作用；考慮玻璃對組合立柱的約束作用，在負風壓作用下立柱幕墻平面內(nèi)變形顯著降低，幕墻平面外變形也有較大幅度的減小，但在正風壓作用下，玻璃對組合立柱的約束作用對幕墻平面外變形影響較??；試驗結(jié)果與有限元分析結(jié)果較為吻合，從而驗證了模型的合理性和正確性。［關(guān)鍵詞］單元體幕墻; 鋁合金立柱; 協(xié)同工作性能; 變形性能; 屈曲特征值中圖分類號：TU395 文獻標識碼：A 文章編號：1002-848X(2015)15-0022-05
Study on interaction work performance of male and female columns of unit curtain wallsZhao Yu1, Hui Cun2,3, Wang Bin2, Wang Yuanqing3, Tao Wei2(1 Department of Civil Engineering, Emei Campus of Southwest Jiaotong University, Emeishan 614202, China; 2 Jangho Group Company Limited, Beijing 101300, China; 3 Department of Civil Engineering, Tsinghua University, Beijing 100084, China)Abstract:In order to study the interaction work performance of male and female columns of unit curtain wall, the finite element numerical simulation of one single male column, one single female column and composite columns with considering the glass constraint or not and with a hook or not were carried out to study their deformation and buckling performance under positive and negative wind pressure and the experiments of models under typical working condition also were done. The results show that, the deformations of the single male and female columns are great and the buckling eigenvalues are little under wind pressure.Considering the interaction work performance of male and female columns can reduce the deformation of the column greatly and improve the buckling eigenvalue and bearing capacity significantly. The hook between the male and female columns can play a significant role under positive wind pressure, but almost no effect under negative wind pressure. Considering the restraint effect of glass on out of plane deformation of aluminum alloy column can reduce the in plane deformation significantly and also reduce out of plane deformation under negative wind pressure greatly, and the restraint effect of glass on composite column has little influence on the out of plane deformation under positive wind pressure. The experiment results are fairly consistent with the finite element analysis results, which can vertify the rationality and validity of the models.Keywords:unit curtain wall; aluminum alloy column; interaction work performance; deformation performance; buckling eigenvalue
*中國博士后科學基金項目（2015M570998），北京市博士后工作經(jīng)費資助項目（2015ZZ-150）。作者簡介：趙宇，Email: zhaoyu@163.com。
