The Function Design And Seismic Performance Evaluation Research On Earthquake Shelter

In recent years, frequent earthquakes caused incalculable loss of human lives and property with its sudden, severe features. In our country, the disaster in2008wenchuan earthquake and2010yushu earthquake is the most representative. Obviously, the earthquake is the greatest enemy of human beings, in line with the "people-oriented", the principle of life and property safety first, seismic shelter construction has become the compulsory subject, shelter is imminent earthquake prediction after the release or earthquake disasters occur, to ensure the security of people, reduce the casualty, speed up the reconstruction.Based on the characteristics and function of the earthquake shelters, large-scale structures played an integral role in its construction. Among them, the grid structure is more than to force the spatial structure of large span, good space, conducive to the refuge of the internal functions of planning, rational and effective use of building space. In addition, the grid structure also has the advantages of rigidity, good stability, high security. However, the grid structure stiffness, good seismic performance in the earthquake shelters applications of the most important features.In this paper, the earthquake shelter function design and seismic performance evaluation work done as follows:1This paper introduces the function design of the earthquake shelters, including design principles, elements, function elements and the external field. Also the earthquake shelters are divided into three types. 2Based on the function design of an earthquake shelter built in Taiyuan, this paper explain the setting principle of " combined peacetime and disaster" in detail.3This paper used3d3s software for modeling design.This paper used sap2000software for the structural design and modal analysis, and then input to the structure seismic wave(Shanghai artificial wave, Hollywood, EMC wave, LWD wave wave) of X:Y:Z=1:085:0.65in order to have nonlinear time history analysis.The main conclusions as follows:1. Intensifying the construction and planning of the earthquake shelters is an essential means to response "c disaster prevention and mitigation ". Planning and design of earthquake shelters should focus on "combing peacetime and disaster" principle.The interior and peripheral function design of earthquake shelters should consider the purpose of rapid asylum.2. Through the study and analysis of earthquake shelter’s natural vibration characteristics, we can know that he stiffness of the structure is larger, meets the design requirements of refuge. By vibration mode, the supporting stiffness between the structure of the column is relatively weak.3. Under the action of the disastrous earthquake, the largest of the structure of the earthquake shelter node displacement is increasing with the increase of seismic acceleration, buckling failure happens in the end. Based on structure in four types of elastoplastic time history analysis under seismic action, can know the structure of the comprehensive seismic performance can satisfy the demands of seismic shelter function.