摘要
通过对2根碳纤维复材筋珊瑚骨料混凝土梁和2根碳纤维复材筋普通混凝土梁的受剪对比试验,对碳纤维复材筋混凝土梁破坏形态、裂缝开展等情况进行观察,探讨不同混凝土种类、强度下的梁破坏形态;分析不同配箍率和不同剪跨比对梁开裂荷载、极限承载力和挠度的影响规律;通过试验结果与理论计算的承载力、裂缝宽度等对比,验证了GB 50608—2010《纤维增强复合材料建设工程应用技术规范》中规定计算方法对碳纤维复材筋珊瑚骨料混凝土梁抗剪验算的适用性。
According to the shear tests of 2 coral aggregate concrete beams with CFRP bars and 2 normal concrete beams with CFRP bars,the failure mode and crack of concrete beams with CFRP bars were observed,the failure modes of beams with different types of concrete and strength were discussed. The influences of different stirrup ratio and different shear span ratio on the cracking load,ultimate bearing capacity and deflection of the beams were also analyzed. By comparing the test results with the theoretical calculation of the bearing capacity and crack width,the applicability of the calculation method in the existing codes to the sheared coral aggregate concrete beam with CFRP bars was verified.
出处
《工业建筑》
CSCD
北大核心
2016年第10期174-178,共5页
Industrial Construction
基金
中冶建筑研究总院有限公司重大课题(JAF2014Kj03
YBC2015ZX10)
国家高技术研究发展计划(863计划)(2012AA03A204)
关键词
碳纤维复材筋
珊瑚骨料混凝土梁
斜截面极限承载力
carbon fiber reinforced polymer bar
coral aggregate concrete beam
ultimate bearing capacity of inclined section
