建筑结构学报2012，Vol.33Issue(11)：53-61,9.
北京市既有农村住宅砖木结构加固前后振动台试验研究
Shaking table test of unretrofitted and retrofitted brick-wood structures representative of existing rural buildings in Beijing
摘要
Abstract
This paper presents seismic retrofit for the single-story brick-wood structure representative of existing rural buildings in Beijing. The unretrofitted and retrofitted retrofitting effectiveness was examined through large-scale shaking table tests on the specimens. The test results indicate that, for the unretrofitted specimen, the front brick columns deform and damage severely when subjected to the longitudinal motions, because large of lateral stiffnesses difference exists between the front and back longitudinal walls. The brick gables experience significant out-of-plane deformation, resulting in diagonal cracks. The unretrofitted specimen is cracked under minor earthquakes, significantly damaged under design basis earthquakes, and approaches to collapse under rare earthquakes. The method of seismic retrofit was proposed based on the test results of the unretrofitted specimen, including the addition of a steel doorframe, steel window frames and steel plate collar beams, and the strengthening of the brick gables and columns by cement mortar reinforced with steel mesh. Shaking table test results show that the retrofit method significantly improves the earthquake-resistant capacity of the brick-wood building structure, and the retrofitted specimen can achieve the design objective of 'operational under minor earthquakes, repairable damage under design basis earthquakes, and collapse prevention under rare earthquakes'.关键词
既有农村住宅/砖木结构/大比例尺模型/振动台试验/抗震加固Key words
existing rural buildings/brick-wood structure/large-scale model/shaking table test/seismic retrofit分类
建筑与水利引用本文复制引用
纪晓东,马琦峰,赵作周,钱稼茹,杨威,陈俞,王满生..北京市既有农村住宅砖木结构加固前后振动台试验研究[J].建筑结构学报,2012,33(11):53-61,9.基金项目
十二五国家科技支撑计划项目（2011BAJ08803）,北京市财政资助项目. （）
