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Simulation and Analysis of Collapse Process of Masonry Structure with Bottom Frame Under Earthquake

Author: LiuDong
Tutor: LiuHaiQing
School: Liaoning Technical University
Course: Structural Engineering
Keywords: masonry structure with bottom frame earthquake action different intensity earthquake simulation and analysis collapse
CLC: TU352.11
Type: Master's thesis
Year: 2009
Downloads: 83
Quote: 0
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Abstract


This article briefly summarizes the theory of antiseismic analysis and methods of simulation analysis. It analyses the superiority of structural failure which is based on display algorithm of central finite difference and time integration. The algorithm is applied to the software. By using the software of LS-DYNA, the reinforced concrete model, rigid surface model and the masonry model is applied to three-dimensional solid modeling of the masonry structures with bottom frame to simulate the analysis of collapse. According to specifications,it selects rare earthquake in the eight degree zones and in night degrees zones. By defining the failure criteria to control the failure of element and for studying the destruction and collapse of the structure rationally. The appropriate contacts method and parameters are defined to simulate the movement of structure members. In this paper, four conditions is described the process of collapse of the structure and the factors of the collapse of the structure. Post-processing technique is used reasonably. Then simulation results are outputted with a variety of ways such as graphics and animation. The results show that. It is high precision for analysis of the destruction and collapse of masonry structure with bottom frame by using the article of this article. By selecting the model of masonry structure with bottom frame rationally, inputting seismic wave and the defining the failure criterion. It can simulate masonry structure with bottom frame from linear to the non-linear under the different intensity earthquakes until the final the whole process of collapse of structure. At the same time, it can reduce the damage caused by the earthquake effectively by increase the size of cross section of the column of the underlying framework, especially under the high-intensity. In this paper, the simulation results which are obtained by used ANSYS/LS-DYNA software can be used to design structural and it is base of secondary analysis to assess the existing structural safety. Then guide the structural antiseismic fortification.

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CLC: > Industrial Technology > Building Science > Building structure > Special Structure > Anti - shock structure,disaster prevention structures > Shock, isolation, and explosion-proof structure > Seismic structure
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