摘要
以三峡库区某预应力混凝土连续刚构桥为研究对象,对预应力混凝土构件进行荷载试验。在试验桥指定截面施以不同荷载作用,通过测量相关参数与计算值相对比来判明工程结构的技术性能,从而判断构件承载力是否满足设计要求分析试验的相关数据可以发现,桥梁应变增大系数与车速相关,但不同截面应变增大系数随车速变化的规律不同。
The load test on the pre-stressed concrete members of a continuous rigid frame bridge in the Three Gorges reservoir area is carried out.Different loads are applied to the specified section of the test bridge,The engineering structure technical performance is determined by comparing the relevant parameters with the calculated values,so as to judge whether the members'bearing capacity meets the design requirements.By analyzing the relevant data,it can be found that the bridge's strain increase coefficient is related to the vehicle speed,but the law of the strain increase coefficient of different sections changes with the vehicle speed is different,and it is more sensitive to the driving state change response than the strain increase coefficient of the vehicle speed.
作者
曾勇
李勇岐
ZENG Yong;LI Yongqi(Chongqing Jiaotong University,Chongqing 400074,China)
出处
《洛阳理工学院学报（自然科学版）》
2020年第4期24-31,共8页
Journal of Luoyang Institute of Science and Technology：Natural Science Edition
关键词
荷载试验
连续刚构桥
承载能力
结构分析
load testing
continuous rigid frame bridge
carrying capacity
structural analysis
