钢纤维全轻混凝土棱柱体抗冲击试验研究  

Experimental Study on Impact Resistance of Steel Fiber Reinforced Lightweight Concrete Prism

作　　者：李冲[1] 甄严[1] 李佳忆[1] 曲家忻 王钰茗[1] 崔凤宇 曹友军[2] 

机构地区：[1]吉林建筑大学,吉林长春130118 [2]中水东北勘测设计研究有限责任公司,吉林长春130021

出　　处：《北方建筑》2017年第2期14-17,49,共5页Northern Architecture

基　　金：2016年度吉林建筑大学省级大学生创新创业训练计划项目(201610191165)

摘　　要：研究不同钢纤维体积掺量(0%,1%,2%)及不同冲击速度对全轻混凝土棱柱体抗冲击性能的影响,通过测试试件的冲击力峰值、应力峰值、冲击力作用时间和最终破坏形态,综合评价钢纤维全轻混凝土棱柱体的抗冲击性能。试验结果表明:随着冲击速度的增加,试件的冲击力峰值、应力峰值呈增加趋势,冲击力持续时间则减小。同时获取了试件的破坏形态和破坏过程的高速影像,试件的破坏形态主要呈径向劈裂。Study of different steel fiber volume fractions （0 % , 1 % ,2%） and the effects of different impact velocity on the anti shock performance of the lightweight concrete prism,the peak value of the impact force,the peak value of the stress,the time of impact force and the final failure mode were tested,comprehensive evaluation of impact resistance of steel fiber lightweight concrete prisms.Experimental results showrwith the increase of impact velocity,the peak value of the impact force and the stress peak of the specimen are increased, the duration of impact force decreases.At the same time,the failure mode and the high speed image of the failure process are obtained , the main failure modes of the specimens are radial splitting.

关 键 词：钢纤维 全轻混凝土 抗冲击性能 落锤试验 

分 类 号：TU528.572[建筑科学—建筑技术科学]