摘要
以长门特大桥塔梁墩固结区1∶5全断面模型试验为背景,针对该试验加载点较多,不同工况下的各加载点荷载值差别较大等特点,研究设计了反力框架和多种加载方式相结合的加载系统,以有效模拟复杂受力状态。仿真计算和试验结果均表明,采用该加载方案能较好地反映结构实际受力,充分实现模型试验目的,可靠且有效。
Based on the 1∶5 full-section model test of the rigid fixity of tower and girder of Changmen bridge,a loading system combining reaction force frame with various loading modes is designed to achieve complicated stress state of this kind of structure,in view of the fact that the loading point of the test is more and the load value of each loading point varies greatly under different working conditions.Numerical calculation and experiment results show that using this loading scheme can reflect the actual stress of the structure well and can fully achieve the purpose of the model test,and the loading scheme is in good reliability and validity.
出处
《交通科技》
2018年第1期31-33,共3页
Transportation Science & Technology
关键词
塔梁墩固结区
模型试验
加载方案
pier-tower-girder fixed region
model test
loading program
