摘要
本文以筒形复合材料桥梁防撞装置为研究对象,采用平行板外载静压试验方法对格构增强复合材料圆筒进行了侧压试验,分析了圆筒中横向格构的数量、间距对试件刚度、极限荷载、耗能能力、平均压溃力的影响,结合破坏形态分析,对试验结果进行了拟合,给出了合理的耗能构造设计建议。研究表明,圆筒中横向格构间距越小,试件极限荷载和平均压溃力越大,耗能能力越强。
The compressive behavior and energy absorption capacity of composite bridge pier anticollision bumper system were investigated under static compression loading.The effects of the lattice spacing and number of lattices in the cylinder tube on the initial stiffness,ultimate compression loading,energy absorption capacity and mean crush loading were examined.A unified design procedure was also proposed based on failure modes and other test results.Furthermore,the test results demonstrated that the ultimate compression loading,energy absorption capacity and mean crush loading can be enhanced with the decrease in the lattice spacing.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2016年第2期274-279,共6页
Journal of Materials Science and Engineering
基金
国家自然科学基金重点资助项目(51238003)
国家自然科学基金青年科学基金资助项目(51208251)
关键词
格构增强圆筒
静力压缩
极限荷载
耗能
平均压溃力
composite cylinder strengthened with GFRP lattices
static compression
ultimate compression loading
energy absorption
mean crush loading
