摘要
为了研究特殊肋拱桥主拱圈拱肋各截面的静力反应。为其他类似桥梁的荷载试验提供参考经验。依据公路桥梁承载能力检测评定规程采用静载试验方法,通过现场试验并建立空间结构模型给出了试验桥跨在不同荷载工况下的应力、变形、位移等内容。本次荷载试验加载效率在0.96~1.04之间,符合规范中对荷载试验荷载效率宜在0.95~1.05之间的要求。在等效荷载短期作用下,东西关嘉陵江大桥受力性能满足公路-Ⅱ级,人群:3.0 kN/m^(2)使用要求。
In order to study the static response of each section of arch rib of main arch ring of special rib arch bridge.It provides reference experience for load test of other similar bridges.According to the code for testing and evaluating the bearing capacity of highway bridges,using the static load test method,through the field test and establishing the spatial structure model,the stress,deformation and displacement of the test bridge span under different load conditions are given.The loading efficiency of this load test is between 0.96 and 1.04,which meets the requirements of the code that the load efficiency of load test should be between 0.95 and 1.05.Under the short-term action of equivalent load,the mechanical performance of Dongxiguan Jialing River Bridge meets the requirements of highway-class Ⅱ and crowd:3.0 kN/m^(2).
作者
朱永
刘红
何春梅
周敏
ZHU Yong;LIU Hong;HE Chun-mei;ZHOU Min(Neijiang Normal University,College of Architectural Engineering,Neijiang,Sichuan 641100,China)
出处
《黑龙江交通科技》
2022年第9期86-88,共3页
Communications Science and Technology Heilongjiang
关键词
拱桥
拱肋
静载试验
arch bridge
arch rib
static load test
