|本期目录/Table of Contents|

[1]张运清,赵庆云,孟涛.钢管混凝土拱桥拱脚裂缝成因分析及维修措施[J].公路与自然,2019,26(02):54-57.
 ZHANG Yun qing,ZHAO Qing yun,MENG Tao.Cause Analysis and Maintenance Measures of Arch Foot Cracks of Concrete Filled Steel Tubular Arch Bridge[J].Highway & Nature,2019,26(02):54-57.
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钢管混凝土拱桥拱脚裂缝成因分析及维修措施()
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《公路与自然》[ISSN:/CN:]

卷:
第26卷
期数:
2019年02
页码:
54-57
栏目:
养护改建
出版日期:
2019-05-07

文章信息/Info

Title:
Cause Analysis and Maintenance Measures of Arch Foot Cracks of Concrete Filled Steel Tubular Arch Bridge
作者:
张运清赵庆云孟涛
山东省交通规划设计院,山东 济南 250031
Author(s):
ZHANG YunqingZHAO QingyunMENG Tao
Shandong Provincial Communications Planning & Design Institute,Jinan 250031, China
关键词:
钢管混凝土拱桥拱脚裂缝有限元分析
Keywords:
concrete filled steel tubular arch bridge arch foot crack finite element analysis
分类号:
U416.2
DOI:
-
文献标志码:
A
摘要:
本文结合某80m跨径下承式钢管混凝土钢架系杆拱桥,运用MIDAS软件建立拱脚三维空间有限元模型,计算分析了最不利组合、温度荷载、收缩徐变荷载三种工况下的拱脚应力分布情况。计算结果表明,混凝土收缩徐变及温度作用是拱脚开裂的主要原因。依据病害成因提出了维修方案,确保拱桥安全运营。
Abstract:
In this paper, the three-dimensional finite element model of arch foot is established by using MIDAS software for an 80m span concrete filled steel tubular rigid frame tied arch bridge. The stress distribution of arch foot under the most unfavorable combination, temperature load, shrinkage and creep load is calculated and analyzed. The calculation results show that the concrete shrinkage and creep and temperature effect are the main reasons for the cracking of arch foot. According to the cause of the disease, the maintenance scheme is put forward to ensure the safe operation of the arch bridge.

参考文献/References:

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2019-04-25