|本期目录/Table of Contents|

[1]张望喜,易伟建,王力力,等.连续梁桥拓展多跨双曲拱桥的分析与控制[J].建筑科学与工程学报,2010,27(01):25-30.
　ZHANG Wang-xi,YI Wei-jian,WANG Li-li,et al.Analysis and Control of Multi-span Double Arch Bridge Expanded by Continuous Bridge[J].Journal of Architecture and Civil Engineering,2010,27(01):25-30.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
27卷
期数:
2010年01期
页码:
25-30
栏目:
出版日期:
2010-03-20

文章信息/Info

Title:
Analysis and Control of Multi-span Double Arch Bridge Expanded by Continuous Bridge
作者:
张望喜,易伟建,王力力,黄亮雄,文双武
湖南大学 土木工程学院,湖南 长沙 410082
Author(s):
ZHANG Wang-xi, YI Wei-jian, WANG Li-li, HUANG Liang-xiong, WEN Shuang-wu
School of Civil Engineering, Hunan University, Changsha 410082, Hunan, China
关键词:
拓改工程;  多跨双曲拱桥;  连续梁桥;  控制;  温度效应
Keywords:
expansion engineering;  multi-span double arch bridge;  continuous bridge;  control;  temperature effect
分类号:
U448.15
DOI:
-
文献标志码:
A
摘要:
结合湖南省长沙市橘子洲大桥西桥头拓改工程,讨论了双曲拱桥一端采用连续箱梁桥拓展改造施工过程中的关键问题。分析结果表明:在施工控制恰当的情况下,可以防止原拱桥主拱圈开裂损伤; 桥梁变位监测结果对修正施工措施、保证施工效果具有重要的指导作用; 桥梁结构应变受温度影响的变化量大于受施工影响的变化量; 电阻应变仪以及手持式应变仪在野外测试时,受环境干扰较大,所测应变值甚至超过较小结构的荷载应变值。
Abstract:
Associating with the west end expansion engineering of Changsha Juzizhou Bridge, Hunan Province, some key problems arising in the expansion project of multi-span double arch bridge expanded by continuous bridge were discussed. Analytical results show that the reasonable construction control can prevent the original multi-span arch bridge from cracking. The revising of construction measurement will benefit from the displacement monitoring data. The varying magnitude of the structural strain created by the varying temperature is greater than the expansion construction. During the field measuring by metal strain gauge or manual strain gauge, the interference affection of environment is great, and the measuring strain is greater than the structural strain by loads.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2009-12-09
基金项目:国家自然科学基金重大研究计划项目(90815002); 湖南省科技计划项目(2008FJ3122)
作者简介:张望喜(1971-),男,湖北黄冈人,副教授,工学博士,E-mail:wxizhang2000@163.com。
更新日期/Last Update: 2010-03-20