摘要
为了解叠合混凝土梁的力学性能,对6根受拉区新增受力钢筋叠合梁进行了试验研究,探讨了受拉区新增受力钢筋叠合梁的裂缝、挠度的发展变化规律,极限抗弯承载力以及破坏形态。试验研究表明,叠合层强度高一级别的叠合构件基本性能与整体浇筑梁相近,其裂缝条数较多、宽度较大,但并不能明显提高钢筋混凝土梁的屈服弯矩和极限弯矩。
In order to study the behavior of the bearing capacity of reinforced concrete composite beams, six composite beams with added renforced steel at tension zone were tested. The main experiment parameters include deflection, crack, ultimate bearing capacity and failure mode. The results show that the behavior of high strength composite layer beams is similar to that of the whole cast beam, the number of cracks is more and the space is larger, but can not improve the yield moment and ultimate moment of the reinforced concrete beam obviously.
出处
《建筑结构》
CSCD
北大核心
2013年第8期51-53,共3页
Building Structure
基金
广西自然基金"2012GXNSFBA053151"
广西重点实验室开放基金项目(11-03-21-3)
广西科技攻关项目(桂科攻0992001-2)
关键词
叠合梁
受弯性能
裂缝
抗弯承载力
composite beam
bearing capacity
crack
ultimate bearing capacity
