典型砖木结构房屋抗震加固方法研究

摘要

砖木结构房屋在全国分布广泛,砖木结构的震害很大一部分来源于墙体的破坏和倒塌,所以做好砖木结构房屋的抗震,墙体应是关键因素. 根据实地调研及相关震害资料,总结了砖木结构的形式及分布,提出了墙体抗震加固方法. 以典型砖墙围护木结构房屋为原型,利用振动台试验验证加固措施的效果. 试验表明墙体拉结措施在地震作用水平较高时,能有效减小加速度和位移反应.%Masonry-timber structures are widely distributed throughout our country.Wall destruction and col-lapse are main causes of economic losses and casualties.Therefore wall is a key factor to seismic resistance of masonry-timber structures.The form and distribution of masonry-timber structures were summarized based on the earthquake damage survey and the field investigation.The seismic strengthening method of wall was pro-posed according to the characteristics of earthquake disaster.In order to verify the effect of the strengthening method, a shaking table test on a model of typical masonry-timber structure was carried out.The test results showed that connecting measure of wall could significantly reduce the reaction of acceleration and displacement under the high level earthquake.