GFRP筋高温破坏特性测试方法  

RESEARCH ON TEST METHOD OF FAILURE PERFORMANCES OF GFRP BARS AT HIGH TEMPERATURE

作　　者：汤寄予[1] 高丹盈[1] 赵军[1] 付亚男[1] 

机构地区：[1]郑州大学纤维复合建筑材料与结构教育部工程研究中心,郑州450002

出　　处：《工程塑料应用》2009年第3期63-66,共4页Engineering Plastics Application

基　　金：河南省重点科技攻关项目(072102230026)

摘　　要：采用自行研制的纤维增强塑料(FRP)筋高温力学性能测试系统,对玻璃纤维增强塑料(GFRP)筋在高温火灾下的受力变形性能进行测试。结果表明,采用本测试方法可得到GFRP筋在火灾下真实的应力-应变曲线;高温火灾下GFRP筋的破坏特性与常温下显著不同;以炉体外试样长度作标距的试验测试方法并不能很好地反映高温作用下GFRP筋真实的受力和变形行为。Adopting self-developed high temperature testing system for fiber reinforced polymer, the performances of strength and deformation for glass fiber reinforced polymer （GFRP） bars were tested. The results showed that the real stress-strain curves of GFRP at high temperature could be obtained using the test method in this paper, however, the failure characteristics of GFRP at high temperature differed remarkably from that at normal temperature, and the test method of strain gauge placed out of furnace could not well reflect the real load and deformation behavior of GFRP under high temperature.

关 键 词：玻璃纤维增强塑料筋 高温 火灾 应力-应变曲线 

分 类 号：TU377.91[建筑科学—结构工程] TU452