车辆荷载下预制排管缆线管廊接头受力影响分析
Analysis of the force effect of prefabricated cable tunnel corridor joints under vehicle load
王鑫 1付伟庆 2刘胜敏 3黄剑 4王建4
作者信息
- 1. 青岛理工大学 土木工程学院,青岛 266525
- 2. 青岛理工大学 土木工程学院,青岛 266525;山东省高校蓝色经济区工程建设与安全协同创新中心,青岛 266525
- 3. 广信正合咨询集团有限公司,青岛 266000
- 4. 上海市政工程设计研究总院(集团)有限公司,上海 200092
- 折叠
摘要
预制排管缆线管廊为工厂预制,现场装配连接,其上部车辆荷载对接头受力性能影响较大.为探究车辆荷载对管廊接头受力性能的影响,以截面尺寸为 1190 mm×750 mm的预制排管缆线管廊为例,采用有限元分析方法,对不同预应力和土体刚度在车辆荷载影响下的接头受力性能进行了研究.研究结果表明:车辆荷载纵向作用于管廊接头时,提升底部土体刚度可以有效限制结构纵向变形;车辆荷载横向作用于管廊接头时,提升预应力和侧面土体刚度可以有效限制结构横向变形.
Abstract
Prefabricated cable tunnel(PCT)is prefabricated for factory and assembled onsite,whose upper vehicle load has a greater impact on the force performance of joints.In order to investigate the effect of the vehicle load on the performance of PCT corridor joints,this stud-y takes a PCT with cross-sectional size of 1190 mm×750 mm as an example,uses the meth-od of finite element analysis and investigates the force performance of joints under the influ-ence of vehicle load for different prestress values and soil stiffness.The research results show that when the vehicle load acts longitudinally on the PCT corridor joints,enhancing the bottom soil stiffness can effectively limit the longitudinal deformation of the structure;when the vehicle load acts transversely on the PCT corridor joints,enhancing the prestressing and lateral soil stiffness can effectively limit the transverse deformation of the structure.
关键词
预制排管缆线管廊/管廊接头/车辆荷载/受力性能Key words
prefabricated cable tunnel/corridor joints/vehicle load/force performance引用本文复制引用
基金项目
国家重点研发计划(2017YFC0805000)
国家自然科学基金资助项目(52178488)
山东省自然科学基金资助项目(ZR2019MEE020)
上海市青年科技启明星计划(20QB1404900)
出版年
2024
NETL
NSTL
维普
万方数据