农村房屋新型隔震与抗震砌体结构振动台试验研究  

Experimental study on base vibration isolation and anti-seismic masonry structure in rural areas by shaking table test

作　　者：曹万林[1] 周中一[1,2] 王卿[1] 董宏英[1] 张建伟[1] 

机构地区：[1]北京工业大学城市与工程安全减灾省部共建教育部重点实验室,北京100124 [2]河南城建学院土木与材料工程系,河南平顶山467036

出　　处：《振动与冲击》2011年第11期209-213,共5页Journal of Vibration and Shock

基　　金：国家"十一五"科技支撑计划课题(2008BAJ08B14)

摘　　要：为提高农村房屋的抗震减震能力,提出了一种新型基础滑移隔震构造的砌体房屋和一种异形保温砌块带构造柱砌体房屋,并均已获得国家发明专利。进行了4个农村房屋结构模型的模拟地震振动台试验研究,试验模型包括:1个基础滑移隔震砌体房屋和1个对比的抗震房屋;1个异形保温砌块带构造柱砌体房屋和1个对比的普通保温砌块砌体房屋。通过试验,研究了基础滑移隔震结构的工作机制,分析了抗震结构的抗倒塌能力与墙体破坏过程。研究表明:提出的基础滑移隔震结构,构造简单,造价低廉,工作可靠,当峰值加速度为0.1g时滑移隔震系统便可启动,可显著减小上部结构的地震作用;异形保温砌块带构造柱砌体房屋与普通保温砌块砌体房屋相比,其承载力高,刚度退化慢,延性较好,综合抗震能力显著提高。本文研发的新型基础滑移隔震砌体结构和异形保温砌块砌体结构,适于农村房屋的建造。A new kind of base vibration isolation masonry structure and an anti-seismic masonry structure were presented to improve the anti-seismic and damping performances of masonry buildings in rural areas.The two technologies have obtained the China national invention patents.Four rural housing structures were tested on a shaking table.The test models include： the base vibration isolation masonry structure model and its comparison model with anti-seismic measures,the masonry structure model made up of special-shaped insulating concrete blocks with constructional columns and its comparison model made up of normal concrete blocks and corresponding constructional measures.Based on the experiments,the working performance of the base vibration isolation was studied;the anti-collapse capacity and wall failure process of the new anti-seismic structure were analyzed.The seismic design recommendations based on the above analysis were put forward.Experiments show that： the proposed base isolation system has the advantages of simple construction,low cost and good working reliability;when the peak acceleration reaches 0.1g,the base isolation system will start working effectively,which can significantly reduce the seismic effect applied to the upper structure;the proposed new anti-seismic system is more reasonable in anti-seismic design and has higher anti-seismic capacity,slower stiffness degradation and better ductility.It can significantly improve the comprehensive seismic performance of rural housings.The new base isolation system and the new anti-seismic system proposed are suitable for applying in rural areas in China.

关 键 词：农村房屋 基础滑移隔震 异形保温砌块 砌体结构 模拟地震振动台试验 

分 类 号：TU352.1[建筑科学—结构工程]