文档介绍：云南农村民居木结构抗震分析
云南农村民居木结构抗震分析
摘要:通过参与2006年来云南省政府推出的改善农村住房安全的“民居防震保安工程”,即农村民居地震安全工程实施,结合自己在民居地震安全抗震加固工作实践经验,对即有农村传统木构架承重体系民居房屋木结构抗震加固措施作探讨,从房屋构造,震害机理分析等,对传统木构架承重穿斗式木架现有民居房屋结构抗震加固方面,提出一些提高其抗震性能的加固措施。
关键词:木结构房屋;抗震;加固措施
Abstract: through participating in the 2006 Yunnan provincial government launched the improvement of rural housing security "residential security engineering", namely the rural residential earthquake safety project implementation, combined with their own work practice experience in strengthening residential earthquake seismic safety of rural, namely traditional wooden frame bearing system of residential housing wood structural seismic strengthening measures of housing, from the structure, damage mechanism analysis, the traditional timber-truss-bearing Chuandou wooden existing residential housing structure seismic strengthening, and puts forward some improving measures for strengthening the anti-seismic performance.
Keywords: wooden structure housing; earthquake; reinforcement measures
中图分类号::A文章编号:2095-2104(2013)04-0000-00
一、云南省木结构民居房屋概况
据不完全统计,云南省广大农村房屋多建于80年代中期,其中砖混结构房屋占 %,木结构占(其中:%;土木结构(木构架)占19%;其他70 %,抗震性能低于设防烈度的占85%,其中需要抗震加固的占72%,需要拆除重建的占28%。由于广大农村民房抗震性能较差,地震灾害造成的损失尤为严重。面对频繁发生的地震灾害,抗震加固任务重,点多面广。
传统木构架承重体系砖木结构、土木结构是云南省广大农村及山区各民族(白族、彝族、纳西族、藏族、汉族等)最广泛、最基本的住房结构形式,是我国人民千百年来总结出来的有利抗震的木框架结构形式,但地震时破坏程度比其他结构形式严重,一般遭遇地震烈度为7度