摘要
Y腿刚构系杆拱桥体系复杂,在进行荷载试验方案设计时,相较于常规桥梁控制截面多、荷载工况复杂,且规范对于旧桥荷载试验的加载效率限制更为严苛。基于此以衢江大桥为对象,从静载控制截面与试验工况选取、挠度与应变测点布置以及动载试验截面、传感器布设等几个方面进行Y腿刚构系杆拱桥荷载试验设计,为其荷载试验的实施提供指导,也为今后同类桥型的试验设计提供参考。
The system of Y-shaped pier rigid-frame and tied arch combined bridge is complex.When arranging the load test scheme,compared with the conventional bridge,it has more control sections and complex load conditions,and the code has more stringent restrictions on the loading efficiency of the load test of the old bridge.Based on this,taking Qujiang bridge as the object,the load test design of Y-shaped pier rigid-frame and tied arch combined bridge is carried out from the aspects of static load control section and test condition selection,deflection and strain measuring point layout,dynamic load test section and sensor layout,so as to provide guidance for the implementation of load test and reference for the test design of similar bridge types in the future.
作者
张正琦
柳玉
文博华
ZHANG Zheng-qi;LIU Yu;WEN Bo-hua(Shaanxi Railway Institute,Weinan,Shaanxi 714000 China;School of Highway,Chang'an University,Xi'an,Shaanxi 710064,China)
出处
《黑龙江交通科技》
2022年第8期61-63,共3页
Communications Science and Technology Heilongjiang
基金
陕西省自然科学基础研究计划项目(2019JM-073)
陕西铁路工程职业技术学院科研基金项目(KY2021-08)。
关键词
Y腿刚构
系杆拱桥
静载试验
动载试验
Y-shaped pier rigid-frame
tied arch bridge
static load test
dynamic load test
