Status and seismic damage analysis of the masonry buildings in the villages and small towns

摘要

Many dwelling houses from 79 administrative villages of 23 provinces were investigated by our research group from June to September in 2009. 84.5% of the houses investigated are masonry buildings. On the basis of research on the masonry buildings in the villages and small towns, the structural characteristics of the masonry buildings are introduced. To understand the primary weakness of rural houses, the typical status is investigated, including the foundation treatment, walls Rachel, structural concrete column and ring beam setting, etc. Ultimately, several important problems were turned up, such as the uneven settlement of foundation, low strength of masonry mortar, doors and windows with excessive opening rate, placing the purlin in the gable directly, no structural concrete column or ring beam, poor construction technology, etc. The common forms of seismic damage are researched and the causes are analyzed in the end.