复材网格箍筋混凝土梁受剪性能试验研究  

EXPERIMENTAL RESEARCH ON THE SHEAR BEHAVIOR OF CONCRETE BEAMS WITH FRP GRID STIRRUPS

作　　者：邱红利 李荣[1] QIU Hongli;LI Rong(Central Research Institute of Building and Construction Co.Ltd,MCC Group,Beijing 100088,China)

机构地区：[1]中冶建筑研究总院有限公司,北京100088

出　　处：《工业建筑》2019年第3期42-45,62,共5页Industrial Construction

基　　金：国家重点研发计划(2017YFC0703000)

摘　　要：为研究复材网格箍筋混凝土梁的抗剪性能,设计了10根配置碳纤维复材网格箍筋混凝土梁和1根钢箍筋混凝土梁在集中荷载作用下的受剪性能试验,对梁的破坏模式、抗剪承载力、跨中位移、裂缝开展等情况进行了观察。通过试验主要研究了配箍方式、剪跨比两个变量对混凝土梁受剪性能的影响;在几何尺寸、混凝土强度、剪跨比、计算抗剪承载力相同条件下,对碳纤维复材网格箍筋混凝土梁和钢箍筋混凝土梁的抗剪过程进行了对比。In order to study the shear behavior of concrete beams with CFRP grid stirrups, the paper designed the shear behavior experiment of 10 concrete beams with carbon fiber composite grid stirrups and one steel stirrup concrete beam under concentrated load. The failure mode, shear capacity, mid-span displacement of the beam and crack initiation were observed. Through the test, the effects of the way of configuring stirrups and the shear-span ratio on the shear performance of the concrete beams were studied. Under the same conditions of geometrical dimensions, concrete strength , shear span ratio and calculated shear capacity, the shearing processes of the CFRP grid stirrup concrete beam and steel stirrup concrete beam were compared.

关 键 词：复材网格箍筋 混凝土梁 配箍方式 剪跨比 受剪性能 

分 类 号：TU37[建筑科学—结构工程]