四川省甘孜州木雅祖庆学校综合楼震害损伤评估及加固方案分析

发布时间：2018-05-26 16:29

本文选题：抗震加固 + 抗震性能　；参考：《重庆大学》2016年硕士论文

【摘要】：近年来,世界各国频繁发生大地震,造成了不少学校教学楼的破损倒塌。中小学具有人数多、密度大、学生年龄小等特征,一旦发生地震后果将很严重,对广大师生的生命安全造成威胁。因此对于高烈度地区,校舍类建筑的加固工程迫在眉睫,随着现代社会对建筑使用功能要求的提高,导致结构加固方案选型存在许多难点。本文以四川省甘孜州木雅祖庆学校综合楼震后加固工程为研究对象,从钢-混凝土混合结构整体分析出发,以近年来的工程实例为依据,综合考虑结构抗震性能、经济性、可靠性和可行性等,最终确定结构加固方案。本文在建立模型时,对下部主体结构分别采用原框架结构和框架-剪力墙结构两种不同结构体系,对网架支座分别采取原铰接支座与弹性橡胶支座。通过对上述模型进行验算分析,评估其抗震性能,确定最终抗震加固方案。本工程原设计是将上部网架结构与下部混凝土主体结构分开单独计算,为模拟真实的结构受力状态,本文采用通用有限元结构分析软件MIDAS Gen对整体结构模型进行抗震性能分析,并结合实际工程经验,为今后的加固设计提供参考依据。
[Abstract]:In recent years, many countries around the world frequent earthquakes, resulting in the collapse of many school buildings. Primary and secondary schools are characterized by large number of students, high density and small age. Once the earthquake occurs, the consequences will be very serious, which will threaten the safety of teachers and students. Therefore, for high-intensity areas, the reinforcement of schoolhouse buildings is urgent. With the improvement of the function of building in modern society, there are many difficulties in structural reinforcement scheme selection. This paper takes the post-earthquake reinforcement project of Muyazuqing School complex Building in Ganzi Prefecture, Sichuan Province as the research object, starting from the whole analysis of steel-concrete composite structure, based on the engineering examples in recent years, considering the aseismic performance and economy of the structure comprehensively. Reliability and feasibility, etc., to determine the final reinforcement scheme. In this paper, two different structure systems, the original frame structure and the frame-shear wall structure, are adopted for the lower body structure, and the original hinge support and the elastic rubber support are used for the grid support respectively. By checking and analyzing the above models, the aseismic performance of the model is evaluated and the final seismic reinforcement scheme is determined. The original design of the project is to separate the upper truss structure from the lower concrete main structure separately. In order to simulate the real stress state of the structure, the general finite element structural analysis software MIDAS Gen is used to analyze the seismic behavior of the whole structure model. Combined with practical engineering experience, it provides reference for future reinforcement design.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU352.1

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