基础滑移隔震土坯组合砌体结构振动台试验

发布时间：2018-06-04 07:07

本文选题：再生砖-土坯组合砌体 + 基础滑移隔震　；参考：《自然灾害学报》2015年06期

【摘要】：村镇建筑土坯结构在一定地域仍有较多应用,为提高土坯结构的抗震能力、减小地震反应,提出了再生砖-土坯组合砌体结构,还提出了一种玻璃珠-石墨基础滑移隔震系统。进行了足尺再生砖-土坯组合砌体结构的振动台试验,采用了玻璃珠-石墨基础滑移隔震系统,研究了结构动力特性与损伤演化过程,分析了影响结构地震反应的主要因素,阐明了隔震系统减小结构地震反应的作用。研究表明:基础滑移隔震再生砖-土坯组合砌体结构具有良好的工作性能;小震下,玻璃珠-石墨基础滑移隔震系统不启动,结构地震反应与抗震结构类似;中震下,玻璃珠-石墨基础滑移隔震系统启动,减轻了上部结构的地震作用;大震下,基础滑移隔震系统工作良好,有效地减缓了上部结构的损伤破坏;再生砖-土坯组合砌体结构可用于村镇砌体结构的抗震设计。
[Abstract]:There are still many applications of adobe structures in villages and towns. In order to improve the seismic capacity of adobe structures and reduce seismic response, a regenerated brick-adobe composite masonry structure and a sliding isolation system of glass bead and graphite foundation are proposed. The vibration table test of full-scale regenerated brick / adobe composite masonry structure is carried out. The sliding isolation system based on glass bead and graphite foundation is adopted. The dynamic characteristics and damage evolution process of the structure are studied, and the main factors influencing the seismic response of the structure are analyzed. The function of the isolation system to reduce the seismic response of the structure is expounded. The results show that the composite masonry structure with sliding isolation and regenerative brick and adobe has good working performance, the sliding isolation system of glass bead and graphite foundation does not start under small earthquake, and the seismic response of the structure is similar to that of the seismic structure; under moderate earthquake, the sliding isolation system of glass bead and graphite foundation is not started. When the sliding isolation system of glass bead and graphite foundation is started, the earthquake action of superstructure is alleviated, and the base sliding isolation system works well under the strong earthquake, which effectively slows down the damage and damage of the superstructure. Regenerated brick-adobe composite masonry structure can be used for seismic design of masonry structures in villages and towns.
【作者单位】：北京工业大学建筑工程学院;唐山学院土木工程系;
【基金】：“十二五”国家科技支撑计划项目(2015BAL03B01)~~
【分类号】：TU317;TU364

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