彭溪河特大桥索塔锚固区段足尺模型试验研究  

Full Size Model Test Research on Cable Tower Anchoring Area of Pengxi River Jumbo Bridge

作　　者：伍波[1] 常国强[1] 张峰[1] 

机构地区：[1]重庆交通科研设计院,重庆400067

出　　处：《公路交通技术》2008年第6期61-65,共5页Technology of Highway and Transport

摘　　要：介绍彭溪河特大桥索塔锚固区段足尺模型试验、张拉工艺模型试验及空间有限元仿真分析。通过模型试验与理论计算相结合的方法,研究索塔锚固区的受力状态和安全性能,并测试小半径"U"形环向预应力束预应力损失和伸长量,为优化设计及指导施工提供了可靠的依据。The full size model test, tensioned technological model test and special finite element emulation analysis in cable tower anchoring area of Pengxi River Jumbo Bridge are introduced. By combining model tests with theoretical calculations, this paper investigates the stress state and safe performance of cable tower anchoring area, and tests the pre-stress loss and elongation of small radius ＂U＂ shape circumferential prestressed strand so as to provide reliable basis for optimizing design and instructing construction.

关 键 词：斜拉桥 索塔锚固区 足尺模型试验 辅助模型 有限元分析 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]