CFRP体外预应力桥梁的荷载试验研究  

Load Test Study of Bridge Externally Prestressed with CFRP Tendons

作　　者：杨炯[1] 丁汉山[1] 张纪波[1] 张志强[1] 郝兴臣[1] 

机构地区：[1]东南大学土木工程学院,南京210096

出　　处：《特种结构》2009年第4期88-92,共5页Special Structures

基　　金：江西省交通科学研究计划项目(03Y028)

摘　　要：对国内首座CFRP体外预应力公路桥梁何圩桥进行荷载试验。试验结果表明混凝土主梁应变增量实测值和理论值接近。CFRP体外索实测索力变化趋势同理论计算结果相同,实测索力增量同理论计算值相符,主梁和CFRP体外索表现出良好的协同工作性能。全桥处于弹性工作阶段,具有较大的安全储备,结构安全可靠。According to the load test of national first highway concrete bridge externally prestressed with CFRP tendons, the test increment value of concrete beam strain is close to theoretical value. The test increment force value of external CFRP tendons is also close to theoretical value and the change trends is same to theoretical results. The concrete beam and external CFRP tendons work on together in a good pace. The whole bridge elastically works perfect, and has a great safety margin.

关 键 词：CFRP 体外预应力 荷载试验 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]