The Research Of Random Seismic Model Parameters And The Multi-ribbed Composite Wall Structure Response Analysis In Random Seismic

Multi-ribbed composite wall structure is a lightweight, energy saving, seismic performance, fast construction new structure system, with a wide application prospect. The research center has done a lot of research in the performance of multi-ribbed composite wall structure system under seismic, and has got good result in the research and application of the multi-layer and high-level building. However, most of the research is made by certainty seismic analysis method, and the application of random seismic analysis method is rare. The main contents are as follows:1. The paper generalizes the random seismic analysis method. The paper introduces six different random seismic model, and deduces the correlation function of the model; generalizes the random seismic response analysis of the single freedom and multiple degree of freedom; introduces two methods of the structure dynamic reliability under random seismic.2. In view of the importance of the random seismic model parameters, the paper modify the random seismic model parameters according the latest release reference the code for seismic design of buildings GB5001-2010.The paper modify the parameters based on GB5001-2001of Tajimi-Kanai random seismic model; modify the parameters based on GBJ11-89of OU Jinping-NIU Ditao random seismic model; modify the parameters based on GB5001-2001of Clough-Penzien random seismic model. The modified parameters which correspond to the latest seismic code can be used in random seismic analysis.3. PSD analysis in ANSYS was made use of for the random seismic analysis in this paper. The paper makes analysis of the frame structure, frame shear wall structure, multi-ribbed composite wall structure response under random seismic, and gets the statistical characteristic value of the response and the probability distribution of the response. The paper gets the random seismic performance of the multi-ribbed composite wall structure through the comparative analysis. The research shows that the multi-ribbed composite wall structure performances much better than the frame structure and little worse than frame shear structure. But the multi-ribbed structure has the advantages of lightweight and fast construction than frame shear structure.