摘要
为测试某在役预应力混凝土简支工字梁桥在服役期间的的承载能力能否达到规范标准。采用荷载试验的方法,研究桥梁结构在静载作用下主要控制截面受力变化。并以某在役预应力混凝土简支工字梁实体桥梁为研究对象,简要介绍简支工字型桥梁在荷载试验过程中所涉及的基础理论,试验原理,测点布置,加载方式等。结合静载和动载试验的结果对桥梁的静力和动力性能进行可靠性分析,研究其在服役期间各项性能指标能否达到要求。为此类预应力混凝土简支工字梁桥在今后的质量评估提供参考价值。
In order to test whether the bearing capacity of a prestressed concrete simply supported I-beam bridge in service can meet the standard,the load test method is used to study the stress change of main control section of bridge structure under static load.Taking an in-service prestressed concrete simple supported I-beam solid bridge as the research object,this paper briefly introduces the basic theory,test principle,measuring point layout,loading mode,etc.involved in the load test process of simple supported I-beam bridges.Combined with the results of static and dynamic load tests,the reliability of static and dynamic performance of the bridge is analyzed,and whether the performance indexes can meet the requirements during the service period is studied.It provides reference value for the quality evaluation of this kind of prestressed concrete simply supported I-beam bridges in the future.
作者
胡铁明
褚博琦
吴宪锴
张晗
HU Tieming;CHU Boqi;WU Xiankai;ZHANG Han(School of Architectural Engineering,Shenyang University,Shenyang 110044,China;Liaoning Transportation Planning and Design Institute Co.,Ltd.,Shenyang 110005,China)
出处
《佳木斯大学学报（自然科学版）》
CAS
2021年第5期6-8,32,共4页
Journal of Jiamusi University：Natural Science Edition
基金
辽宁省交通科技项目(201913)。
关键词
工字梁桥
静载试验
动载试验
简支梁桥
I-beam bridges
static load test
dynamic load test
simply supported beam bridge
