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.
出处
《工程塑料应用》
CAS
CSCD
北大核心
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)
关键词
玻璃纤维增强塑料筋
高温
火灾
应力-应变曲线
glass fiber reinforced polymer bar, high temperature, fire, stress-strain curve
