玄武岩纤维复合材料混合加固破损混凝土短梁的抗剪性能  

Shear behavior of pre-cracked short beams mixed strengthened with BFRP

作　　者：张振雷[1] 李劲松[2] 刘华新[2] ZHANG Zhenlei;LI Jinsong;LIU Huaxin(Railway Engineering Department,Liaoning Railway Vocational and Technical Collage,Jinzhou 121000,China;Civil Engineering & Architecture College,Liaoning University of Technology,Jinzhou 121000,China)

机构地区：[1]辽宁铁道职业技术学院铁道工程系,辽宁锦州121000 [2]辽宁工业大学土木建筑工程学院,辽宁锦州121000

出　　处：《四川建筑科学研究》2018年第1期1-5,12,共6页Sichuan Building Science

基　　金：辽宁省自然科学基金(2015020208)

摘　　要：为了研究玄武岩纤维复合材料混合加固破损混凝土短梁的抗剪性能,考虑剪跨比、加固方式对加固梁的破坏形式、抗剪承载力、变形及应变的影响,对6根破损混凝土短梁进行了抗剪性能的试验研究和理论分析。研究结果表明,破损混凝土短梁混合加固后,抗剪承载力有所提高、跨中挠度有所减小、加固材料的利用率得到提高。采用玄武岩纤维复合材料混合加固破损混凝土短梁的抗剪性能具有可行性。In order to study the shear performance of RC short damaged beams strengthened with BFRP(EB+NSM)methods,the factors such as shear span ratio and strengthening modes were taken into consideration to study failure mode,the shear bearing capacity,deformation and strain.6RC pre-cracked short beams were studied and analyzed under four-point bending test.The results showed that shear bearing capacity of the strengthened beams was improved,the mid-span deflection of short beams was reduced and the utilization ratio of reinforcement material was increased.Short RC beams strengthened with BFRP(EB+NSM)methods is feasible.

关 键 词：混合加固法 抗剪性能 变形 理论分析 

分 类 号：TU318[建筑科学—结构工程]