不同烈度区农村自建砖砌体房屋震害特征研究

Study on characteristics of seismic damage to rural self-built brick masonry houses at different intensity zones

农村自建砖砌体房屋通常没有正规的设计和施工导致该类房屋抗震性能较差。文中以汶川8.0级地震为例,在不同烈度区选择具有代表性地区的农村自建砖砌体房屋为研究对象,分析了该类型房屋不同烈度区的震害特征。通过使用数量化术语的震害描述,对在不同烈度区的农村自建砖砌体房屋的墙体、楼板屋盖、附属结构的破坏进行了震害分析,得到了地震作用下仅考虑结构振动破坏时该类型房屋的破坏特征。最后也给出了降低农村自建砖砌体房屋震害的一些建议。

Rural self-built brick masonry houses usually have poor seismic performance because of irregular design and construction.Taking MS8.0 Wenchuan earthquake as an example,rural self-built brick houses in representative region at different intensity zones are selected as object to analyze characteristics of seismic damage.The seismic damage to walls,roof and non-structural components of rural brick houses are analyzed at different intensity zones by means of using quantified technical terms to describe seismic damage.Meanwhile,damage features of the kinds of rural houses are obtained under seismic action,in which only the vibration failure is considered.At last,advices for reducing seismic damage to the rural brick houses are given.