摘要
我国村镇仍有大量的在役生土结构住宅,在广泛调研和震害分析的基础上提出了可用于既有村镇生土结构房屋抗震加固改造的技术措施。通过2片T型生土墙体和2片一字型生土墙体低周反复荷载作用下的拟静力试验,研究了生土墙体加固前后的承载力和变形性能,验证了加固技术的可行性。研究表明,在墙体中增设的木构造柱和圈梁与墙体能够共同工作,加固后的墙体水平极限承载力和变形能力提高,破坏的脆性性质有所改善。文中所提出的加固方法易于操作,实用性强。
There are still many raw-soil structure houses used in villages.In this paper,the anti-seismic strengthening technological measures are put forward on the basis of many surveys and analysis of seismic damage.The bearing capacity and stability property are studied before and after strengthening through 2 pieces of T size and 2 pieces of — size raw-soil walls under quasi-static test with low-period load moving back and forth,and the feasibility of strengthening is proved.The result shows constructional pillars,circle beam added in walls can collaborate with walls,horizontal ultimate bearing capacity and stability property of the walls after being strengthened are improved,brittleness of damage is also improved.The strengthening measures suggested in this article are easy to operate and have strong practical applicability.
出处
《工程抗震与加固改造》
北大核心
2011年第6期77-81,44,共6页
Earthquake Resistant Engineering and Retrofitting
基金
"十一五"国家科技支撑计划课题(2006BAJ04A03-10)
关键词
村镇建筑
生土结构
加固改造
构造柱
试验研究
houses in villages
raw-soil structure
strengthening and reforming
constructional pillar
experimental study
