纤维增强石膏板的力学性能研究(英文)  

Mechanical behavior of glass fiber reinforced gypsum panels

作　　者：岳建伟[1] 姜忻良[1] 谷岩[1] 

机构地区：[1]天津大学建筑工程学院

出　　处：《西安建筑科技大学学报（自然科学版）》2006年第5期639-645,共7页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：建设部研究开发资助项目(02-2-511)~~

摘　　要：灌注混凝土纤维增强石膏板(GFRGP)是一种新的建筑材料,可在抗震区的低层建筑物中应用。为研究GFRGP的力学性能及灌注混凝土柱与GFRGP间的协同作用,对四块部分灌注混凝土的纤维石谊板进行了侧向作用下的低周反复试验,得到了各试验构件的裂缝分布特点、开裂荷载及极限荷载。结合试验结果,分析了试验构件的抗剪能力、延性特点滞回特性、能量耗散和刚度递减规律。分析表明GFRGP在抵抗侧向剪力时起着重要作用,而混凝承担主要的竖向荷载及侧向荷载引起的弯矩,GFRGP和混凝土柱互相协同共同抵抗外荷载。部分灌注混凝土纤维增强石膏板具有良好的能量耗散能力,在侧向荷载作用下,纤维和混凝土柱在抵抗外荷载中起着关键作用。Glass fiber reinforced gypsum panel （GFRGP） filled with concrete is a new construction material applied to lowrise buildings in seismic zone. To study mechanical properties of GFRGP and cooperative action between GFRGP and concrete columns under lateral load, four different GFRGPs partially filled with concrete are tested under different axial loads. Crack distribution, cracking load and limit load of GFRGPs partially filled with concrete are obtained under low-- cycle loading. According to the experimental results , bearing capacity of shear, ductility features, energy dissipation and stiffness degradation of specimens are quantified and discussed. GFRGP plays an important role in resisting horizontal shear and concrete columns bear main vertical load and moment caused by lateral load. Cooperative action between GFRGP and concrete columns is vital in resisting lateral load. It is proven that the GFRGP partially filled with concrete has better energy dissipation capacity and that fiber and concrete column play a critical role in resisting horizontal force.

关 键 词：纤维石膏板 混凝土芯柱 力学性能 

分 类 号：TU398[建筑科学—结构工程]