884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(1 同濟(jì)大學(xué)建筑工程系 上海 200092； 2 南京工業(yè)大學(xué)土木工程學(xué)院 210009)
［提要］ 通過1∶2隅撐支撐鋼框架模型的單調(diào)加載試驗(yàn)，研究了隅撐支撐鋼框架的抗側(cè)力性能和破壞機(jī)理。試驗(yàn)結(jié)果表明，在水平荷載作用下隅撐最先發(fā)生屈服，并具有很好的變形能力，結(jié)構(gòu)具有很好的滯回耗能性能和延性。對隅撐支撐鋼框架進(jìn)行了彈塑性受力分析，并給出了其恢復(fù)力模型，從而為簡化隅撐支撐鋼框架的非線性分析提出了一種新的方法。
［關(guān)鍵詞］ 隅撐支撐鋼框架 抗側(cè)力性能 破壞機(jī)理 彈塑性受力分析 恢復(fù)力模型
Experimental Study and Elastoplastic Analysis of the Kneebracesteelframe/Sun Aifu1,Dong Jun2,Wang Zhaomin1(1 Department of Building Engineering, Tongji University, Shanghai 200092，China；2 College of Civil Engineering, Nanjing University of Technology,Nanjing 210009,China)
Abstract:Experiment on 1∶2 model of the kneebracedsteelframe was conducted
under monotonic load to investigate the lateral loadresisting performance and
its failure mechanisms.The experimental results show that under horizontal loads the knee element can yield firstly and has excellent deformation capacity This makes the kneebracedsteelframe has excellent capacity of energy dissipation and ductility. Then the kneebracesteelframe is elasticplastic analyzed and its restoring force model is given to present a new way that can simplify the nonlinear analysis of the kneebracedsteelf
rame.
Keywords:kneebracesteelframe; resistantlateral behavior; fracture mechanism; restoring force model