Research of Self Pre-Stress Test of Concrete-Filled Steel Tube Arch Rib

被引:0
|
作者
Huang, Fuwei [1 ]
Yang, Haiting [2 ]
机构
[1] State Key Lab Bridge Engn Struct Dynam, 33 Xuefu Rd, Chongqing 400067, Peoples R China
[2] Ningbo Commun Engn Qual Super Adm, Ningbo 315000, Zhejiang, Peoples R China
来源
关键词
concrete-filled steel tube rib; self pre-stress test; indirect test method;
D O I
10.4028/www.scientific.net/AMR.446-449.1307
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Indirect test method of installing vibrating wire strain gauges as sensors in outer surface of steel tube rib is adopted to carry out the research of concrete-filled steel tube (CFST) self pre-stress test for a half-through CFST arch bridge with a main span of 240m. The results show that indirect test method is a practical approach for self pre-stress test, and the measured value of self pre-stress from this method is much smaller than that of being theoretically calculated by concrete free expansion ratio.
引用
收藏
页码:1307 / +
页数:2
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