配有钢纤维RPC永久柱模的RC框架静力性能试验  

Static Experimental on Reinforced Concrete Frame Structures with Steel Fiber RPC Permanent Pillar

作　　者：王钧[1] 陈旭[1] 李行[1] 贾艳敏[1] 

机构地区：[1]东北林业大学土木工程学院,黑龙江哈尔滨150040

出　　处：《沈阳建筑大学学报（自然科学版）》2014年第1期9-17,共9页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51108124);黑龙江省交通运输厅重点科技项目;黑龙江省博士后资助项目(LBH-Z12006)

摘　　要：目的研究配有钢纤维RPC永久柱模的装配整体式钢筋混凝土框架结构在单调静力荷载作用下,永久柱模对承载力的影响.方法制作配有这种柱模的钢筋混凝土框架结构,进行静力性能试验,观察并分析框架结构在单调静力荷载作用下的受力特征、变形特点以及破坏状态.结果配有这种柱模的钢筋混凝土框架结构,框架梁荷载-跨中变形关系曲线近似呈四折线;这类框架破坏时首先框架梁跨中受拉钢筋屈服,其次框架梁端上部受拉钢筋屈服,结构形成三铰的可变体系,最后以梁端混凝土被压碎导致整体破坏.结论钢纤维RPC永久柱模对核心柱有一定的紧箍约束作用;柱模与核心混凝土具有良好的粘结与协调工作特性;钢纤维RPC永久柱模对框架承载力有一定提高作用.The purpose of this paper is to research influence of permanent pillar on load-bearing capacity of RC Frame Structures with steel fiber RPC permanent pillar under static load. The authors made Reinforced Concrete Frame Structures with the permanent pillar and static test was completed to observe and analysis force characteristics, deformation characteristics and the failure model of RC Frame Structures. The results show that the load-deflection curve at mid-span of the frame beam is an approximate four-straight line. This kind of frame, firstly tensile reinforcement yield at mid-span of the frame beam, secondly upper tensile rein- forcement yield at both ends of the frame beam, the structure form three hinged variable system, lastly con- crete crush cause the overall failure at one end of the frame beam. The conclusion shows that steel fiber RPC permanent pillar can constraint the deformation of core concrete column; steel fiber RPC permanent pillar has better bonding and coordination work characteristics with core concrete;load-beating capacity of RC Frame Structures with steel fiber RPC permanent pillar has certain improvement.

关 键 词：钢纤维RPC 永久柱模 框架结构 静力试验 承载力 

分 类 号：TU375.4[建筑科学—结构工程]