Shrinkage and Creep Effects Analysis of Concrete Self-anchored Suspension Bridge

李建慧; 李爱群; 周广盼

doi:10.13409/j.cnki.jdpme.2016.06.009

您当前的位置：

首页 >

文章列表页 >

Shrinkage and Creep Effects Analysis of Concrete Self-anchored Suspension Bridge

更新时间：2025-12-11

- Shrinkage and Creep Effects Analysis of Concrete Self-anchored Suspension Bridge
- Vol. 36, Issue 6, Pages: 906-912(2016)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.2016.06.009
  CLC： 441;U448.25
- Published：2016
- 稿件说明：
移动端阅览
[1]李建慧,李爱群,周广盼.混凝土自锚式悬索桥收缩徐变效应分析[J].防灾减灾工程学报,2016,36(06):906-912.

李建慧, 李爱群, 周广盼. Shrinkage and Creep Effects Analysis of Concrete Self-anchored Suspension Bridge[J]. 2016, 36(6): 906-912.
[1]李建慧,李爱群,周广盼.混凝土自锚式悬索桥收缩徐变效应分析[J].防灾减灾工程学报,2016,36(06):906-912. DOI： 10.13409/j.cnki.jdpme.2016.06.009.

李建慧, 李爱群, 周广盼. Shrinkage and Creep Effects Analysis of Concrete Self-anchored Suspension Bridge[J]. 2016, 36(6): 906-912. DOI： 10.13409/j.cnki.jdpme.2016.06.009.

摘要

为了研究混凝土收缩徐变效应对自锚式悬索桥力学性能的影响

将按龄期调整的有效模量法与有限元法相结合

采用有限元逐步计算法处理结构徐变问题

对混凝土自锚式悬索桥收缩徐变效应进行分析。结果表明

收缩徐变效应对其力学性能的影响主要是由于主缆锚固点在塔梁位置的改变而引起的结构线形及内力变化

主梁内的预应力损失较为显著

运营期主跨跨中主梁下缘压应力减小较大。自锚式悬索桥成桥合理状态应充分考虑收缩徐变效应对其力学性能的影响及合理设置主梁预拱度。

Abstract

In order to study the shrinkage and creep effects of concrete on the mechanical properties of the self-anchored suspension bridge

according to the age adjusting effective modulus method combined with finite element method

the finite element gradual calculation method is used to analyse the shrinkage and creep effects on the self-anchored suspension bridge.Results show that the influence of shrinkage and creep effects on the mechanical properties of the self-anchored suspension bridge is mainly caused by the position change of the main cable anchorage points in the tower and beam

which leads to the change of the structural shape and internal forces

and loss of prestress of the main girder and stress of lower margin of the main span girder are significant

reasonable finished state of self-anchored suspension bridge should fully consider the influence of concrete shrinkage and creep effects on the mechanical properties and set the main beam camber properly.

关键词

Keywords

references

混凝土自锚式悬索桥施工过程中的收缩徐变效应分析及调整 [J]. 乔朋,狄谨. 公路 . 2014(02)

预应力混凝土斜拉桥施工过程中的收缩徐变效应 [J]. 马牛静,王荣辉,李平杰. 铁道学报 . 2013(04)

“公桥规”函数拟合实现收缩徐变递推计算的研究 [J]. 姚康宁. 辽宁省交通高等专科学校学报 . 2012(05)

平胜大桥体系转换施工控制的关键技术 [J]. 李传习,柯红军,刘建,董创文. 土木工程学报 . 2008(04)

自锚式悬索桥收缩徐变效应分析 [J]. 胡建华,唐茂林,刘蓉,王忠彬. 重庆交通大学学报(自然科学版) . 2007(05)

混凝土收缩徐变预测模型的分析比较 [J]. 丁文胜,吕志涛,孟少平,刘钊. 桥梁建设 . 2004(06)

混凝土桥梁收缩徐变计算的有限元方法与应用 [J]. 颜东煌,田仲初,李学文,涂光亚. 中国公路学报 . 2004(02)

预应力混凝土桥梁收缩与徐变变形试验研究 [J]. 胡狄,陈政清. 土木工程学报 . 2003(08)

JTG D62-2004. 公路钢筋混凝土及预应力混凝土桥涵设计规范 [S]. 2004

空间缆索自锚式悬索桥计算、监控与评估[M]. 人民交通出版社 , 李建慧, 2011

Prediction of concrete creep and shrinkage: past, present and future [J] . Nuclear Engineering and Design . 2001 (1)

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study of Meso-damage Mechanism of Concrete under Sulfate Attack

Study on Acoustic Emission Characteristics during Ⅰ-Ⅱ Mixed Mode Fracture Process in Concrete

Numerical Simulation and Experimental Study on the Temperature Distribution of Concrete under the Fire

Influence of Water Cement Ratio on Mass Loss and Compressive Strength Degradation of Concrete at Elevated Temperature

The Stress State and Strength Analysis of a Compression Concrete Specimen

Related Author

韩女

王震

田威

王阳

王强

范向前

胡少伟

巩妮娜

Related Institution

No data

⁰