拱式转换层结构竖向加载试验研究  

Experimental research on arch transfer floor subjected to vertical loading

作　　者：张敏[1] 王晓东 

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013 [2]中国建筑技术集团有限公司浙江建筑设计分院,浙江杭州310009

出　　处：《四川建筑科学研究》2010年第4期9-11,共3页Sichuan Building Science

基　　金：国家自然科学基金项目(50868006)

摘　　要：在理论分析的基础上,对拱式转换层结构在竖向荷载作用下的性能进行了试验研究。试验研究表明,拱式转换层结构能有效地满足大跨度要求,并具备较好的延性性能,能避免脆性破坏;下弦杆施加预应力不仅可以提高下弦杆的抗裂能力,还可以抵消转换层斜腹杆对转换层下部产生的水平推力,改善该转换层结构的力学性能。On the basis of theoretical analysis,properties of arch transfer floor subjected to vertical loading have been experimentally researched.The result indicates that the arch transfer floor can satisfy the requirement of large span effectively,possess relatively good ductility and avoid brittle destruction.Moreover,not only may the prestressing force in bottom chord heighten the capability of crack resistance of this chord,but also may offset the horizontal thrust of diagonal web member to substructure of the transfer floor,and improve on the mechanics performance of the transfer floor.

关 键 词：转换层 拱 预应力 竖向加载 试验 

分 类 号：TU312[建筑科学—结构工程]