The Research On The Seismic Behavior Of The Twin Tower Conjoined Irregular Structures

The twenty-first century, the rapid development of China's social, economic output is increasing, rapid expansion of cities, high-rise building with its unique advantage of being more and more favored by the city manager. Siamese Twin Towers high-rise building structure as a new form of architecture continue to appear in the major cities, and is often used as a landmark. Therefore, strengthening the significance of the seismic research in this structural system is very important.In this paper, in the introduction to our frequent earthquakes and the distribution of a brief introduction, in addition to a brief introduction of the Siamese twin towers of the architecture. This article also discusses the current seismic analysis of several commonly used seismic theory, then create four Siamese twin towers arranged in different structural models, combined with the finite element analysis software SAP2000 its modal analysis, response spectrum analysis, time history analysis and nonlinear static analysis.Mainly studied at several aspects:1. Siamese twin towers arranged in four different models were carried out modal analysis. According to the specification on the number of modes selected requires paper for each model are intercepted before the 20 order, were analyzed period,as well as modal mass participation factor. But also on further dynamic analysis provides the basic parameters of the power system.2. In response spectrum analysis, the paper first four models were carried out in response to the X spectral analysis were obtained between displacement and its floor layers under earthquake displacement angle, study the piece a different arrangement of its seismic response Impact. Followed by another on the way in the response spectrum analysis in a larger difference between the model and the model was two-way response spectrum analysis to explore the effect of two-way coupling model based on inter-floor displacement and story drift.3. When the model is time-history analysis, first enter two natural wave and an artificial wave, when the model of linear time history analysis, seismic response explore the system under different seismic waves action. In addition, the paper also carried a model of non-linear time history analysis under rare earthquake, study the structure of concrete failure process under earthquake action.4. The article also through the structure Pushover analysis, its performance plastic hinge point and the amount of the distribution, the mechanical process of further study under seismic action.