中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2016, Vol. 35 ›› Issue (1): 5-9.DOI: 10.3969/j.issn.1674-0696.2016.01.02

• 桥梁与隧道工程 • 上一篇    下一篇

自锚式悬索桥体系转换施工控制研究

杨继承1,张钤2   

  1. 1. 招商局重庆交通科研设计院有限公司,重庆 400067;2. 重庆市綦江区公路局,重庆 401420
  • 收稿日期:2014-11-24 修回日期:2015-01-10 出版日期:2016-02-20 发布日期:2016-04-21
  • 作者简介:杨继承(1986—),男,重庆人,工程师,主要从事桥梁设计与科研等相关工作。E-mail:357411615@qq.com。

Construction Control in System Transformation for the Self-anchored Suspension Bridge

YANG Jicheng1, ZHANG Qian2   

  1. 1.China Merchants Chongqing Communications Research & Design Institute Co., Ltd., Chongqing 400067,P.R. China; 2. Chongqing Qijiang District Urban Highway Bureau, Chongqing 401420, P.R.China
  • Received:2014-11-24 Revised:2015-01-10 Online:2016-02-20 Published:2016-04-21

摘要: 自锚式悬索桥体系转换过程几何非线性突出,吊索索力相互影响,仿真分析存在诸多困难,但吊索的无应力长度仅在张拉时发生改变,不随荷载的变化而变化,依此规律提出了吊索张 拉的无应力状态数值模拟方法。根据某自锚式悬索桥的特点,在系统总结体系转换控制条件的基础上,详细探讨了可能的吊索张拉方案,重点对其中的3套典型方案采用无应力状态法进行了数 值模拟,综合比较并给出了推荐方案。该自锚式悬索桥按照推荐方案的施工步骤完成了吊索张拉,全过程施工控制精度高,较好的达到了预期目标。

关键词: 桥梁工程, 自锚式悬索桥, 吊索张拉, 无应力状态法, 数值模拟, 张拉控制条件

Abstract: Numerical simulation of self-anchored suspension bridge system transformation faces many difficulties owning to the geometric-nonlinear prominence and mutual influence of hanger force. According to the rule that the hangers’ zero-stress length only changes with the hanger tension and not changes with the load, the numerical simulation method of stress-free status for hanger tension is put forward. According to the characteristics of a self-anchored suspension bridge, several possible hanger tension schemes were investigated in detail on the basis of the control conditions in system transformation. Three typical schemes of them were primarily simulated with the stress-free status method, and the recommended scheme after the comprehensive comparison was given. The self-anchored suspension bridge’s hanger tension was carried out under the guide of the recommended scheme, whose construction control was with high accuracy and reached the expected goal.

Key words: bridge engineering, self-anchored suspension bridge, hanger tension, zero-stress status analysis, numerical simulation, control conditions of hangers installation

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