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对1榀由钢框架和预制混凝土抗侧力墙组成的足尺试件进行了竖向加载试验,考察该装配式结构在施工和使用阶段竖向荷载的分配关系以及框架梁挠度的变化规律。在试验研究基础上,采用ABAQUS有限元软件建立与验证试验模型,并以实际工程为背景,建立6层和12层单跨钢框架-预制混凝土抗侧力墙装配式结构模型,模拟分析了多高层结构在三种施工方案下的竖向受力性能以及框架梁的变形规律。研究结果表明:采用先逐层安装预制构件,后逐层终拧高强螺栓的施工顺序,能够保证抗侧力墙体仅承担使用阶段的竖向活荷载,大幅度降低了墙体的轴压比。在使用阶段,随着楼层层数的增多,框架柱竖向荷载分担率升高,而抗侧力墙体竖向荷载分担率降低,两者之间的差值逐渐增大。
A full-scale test specimen composed of steel frame and pre-cast concrete anti-side wall was tested vertically to investigate the distribution of vertical load and the variation of frame beam deflection during the construction and service phases. Based on the experimental study, the ABAQUS finite element software was used to establish and validate the experimental model. Based on the actual engineering, a six-story and 12-story single-span steel frame-prefabricated concrete anti-slip wall assembly model was established. Vertical stress behavior of high-rise structure under three kinds of construction schemes and deformation of frame beam. The results show that the construction sequence of installing prefabricated components layer by layer and then terminating the high strength bolts layer by layer can ensure that the anti-sideforce wall only takes the vertical live load during the use phase and greatly reduces the axial compression ratio of the wall . In the use phase, as the number of floors increases, the vertical load sharing ratio of frame columns increases while the vertical load sharing ratio of side wall decreases, and the difference between the two increases gradually.