纤维复材空心板集中荷载冲击下的动力响应试验研究  

EXPERIMENTAL RESEARCH ON DYNAMIC RESPONSE OF FRP HOLLOW PLATE UNDER CONCENTRATED IMPACT LOAD

作　　者：陈伟[1] 杨勇新[1] 李彪[1] 王明森[2] 刘明[2] 

机构地区：[1]中冶建筑研究总院有限公司,北京100088 [2]山东省水利科学研究院,济南250013

出　　处：《工业建筑》2017年第2期171-175,188,共6页Industrial Construction

基　　金：国家973计划资助项目(2012CB026205);山东省水利科研与技术推广项目(SDSLKY201407)

摘　　要：纤维复材(FRP)板在桥梁结构和水工结构领域有着极大的发展潜力,研究其动力性能十分有必要。通过对两边简支FRP空心板进行的一系列集中荷载冲击试验,来验证FRP板的抗冲击性能并分析其动力响应。分析了相同质量落锤在不同冲击势能冲击下,FRP板各点的位移、应变以及加速度的响应模式,包括时程分析以及最大值分析,得到了加速度在试验板内的峰值分布规律及最大挠度和最大应变随冲击势能的变化趋势。结果表明:FRP空心板具有良好的抗冲击性能及消能性能。试验还设置了三组对照组,对比了不同质量落锤、相同初始势能的荷载工况下FRP板的最大挠度及最大应变。FRP material shows great potential in the field of bridge structure and hydraulic structure,it is necessary to study its dynamic performance.In this paper,a series of concentrated load impact experiments were carried out for FRP hollow plate to analyze the impact resistance and dynamic response of FRP plate.It was analyzed that the displacement,strain and acceleration of FRP plate under different impact energy（same quality drop hammer with different release height）,including time history analysis and maximum value analysis.The variation trend of maximum deflection and strain with the change of impact energy was presented.Three control groups of experiments were used to compare the maximum deflection and strain of FRP plate with different drop hammer but same impact energy.

关 键 词：FRP板 集中荷载冲击 应变 位移 加速度 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]