Analysis On The Behaviors Of The Structure With Transfer-Beam

With the rapid development of high-rise buildings, single-function buildings have failed to meet people's needs. Modern high-rise buildings have been developing towards multifunction, which leads the structure to a great difference between the upper and the lower. This requires to arrange a level transition structure for the change of the upper to lower of the structure system or the column net in the floor where the structure changes. Because of the obvious change of vertical anti-lateral stiffness, this structure is greatly different from the traditional ones in forms and load-bearing characteristics. Though certain researches on the structures with transfer floor have been carried at home and abroad, the research on their dynamical characteristics and anti-earthquake behavior is not in-depth.In the article, a frame-supported shear wall structure was analyzed by using the SAP2000 finite element software, and applying the theories of finite element analysis and dynamic analysis for the high-rise building. Then, the dynamic characteristics of the structure were gotten by modal analysis. Response spectrum analysis was conducted to get the response characteristics of the structure under the condition of horizontal earthquake. When time-history analysis was carried with seismic waves imported, time-history response curves of the structure were gotten. Next, seismic behavior of the structure with different conditions was studied by analyzing different calculation models which were changed lateral stiffness ratio or the height of the transfer floor.The results show that the changes of shear wall linked with the ground below the transfer floor impact the response characteristics of the structure more. When the lateral stiffness ratio is changed by changing shear wall linked with the ground, the seismic behavior of the structure is different obviously. With lateral stiffness reducing, the displacement and angle of floor displacement and their abrupt changes at the transfer floor decrease, but story shear force may increase. And with the increase of transfer floor height, the displacement and angle of floor displacement are impacted obviously by it.The purpose of this paper is to learn more about this kind structure and get much more intensive understanding of it by analyzing the structure, and provide reference for the future study and design.