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| 钢管混凝土拱桥的徐变计算方法探讨 | |
| 引用本文： | 田仲初,刘雪锋,颜东煌,谷云秋. 钢管混凝土拱桥的徐变计算方法探讨[J]. 湖南科技大学学报(自然科学版), 2007, 22(2): 48-51,101 |
| 作者姓名： | 田仲初 刘雪锋 颜东煌 谷云秋 |
| 作者单位： | 1. 中南大学,土木建筑学院,湖南,长沙,410076;长沙理工大学桥梁与结构工程学院,湖南,长沙,410076 2. 长沙理工大学桥梁与结构工程学院,湖南,长沙,410076 3. 宁波市公路管理局,浙江,宁波,315040 |
| 摘 要： | 考虑钢管核心混凝土徐变模式与普通混凝土徐变模式的差异,分别采用分离式(截面)模型、换算式(截面)模型和组合式(截面)模型,计算了一座钢管混凝土提篮拱桥的徐变变形.分析表明,分离式模型的计算结果和组合式模型的计算结果十分接近,将其用于施工监控中能保证足够的精度;三门口跨海大桥北门桥横向徐变变形很小,不用考虑拱肋的横向预拱,采用平面杆系程序和分离式截面模型计算就能获得令人满意的结果.图8,参9. |
| 关 键 词： | 钢管混凝土 徐变 计算方法 分离截面 换算截面 组合截面 |
| 文章编号： | 1672-9102（2007）02-0048-04 |
| 收稿时间： | 2006-11-13 |
| 修稿时间： | 2006-11-13 |
Discussion for Creep Calculation Methods of Concrete-Filled Steel Tube Arch Bridge |
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| TIAN Zhong-chu,LIU Xue-feng,YAN Dong-huang,GU Yun-qiu. Discussion for Creep Calculation Methods of Concrete-Filled Steel Tube Arch Bridge[J]. Journal of Hunan University of Science & Technology(Natural Science Editon), 2007, 22(2): 48-51,101 | |
| Authors: | TIAN Zhong-chu LIU Xue-feng YAN Dong-huang GU Yun-qiu |
| Affiliation: | 1. School of Civil Engineering and Architecture, Central South University, Changsha 410076, China; 2. School of Bridge and Structure Engineering , Changsha University of Science and Technology, Changsha 410076, China; 3. Ningho highway administration bureau, Ningho 315040, China |
| Abstract: | Considered the difference of creep mode between the core concrete filled in steel tubes and common concrete, three modds was used to calculate the creep deforming of a box-handle CFST arch bridge. which detached(section) model and combined(section)model separately,Draned the following conclusions, the calculation results of the separated model is highly close to the calculation results of combination model, these models have enough precision when applied to construction monitoring; the cross creep deforming of Beimen bridge is small, so it needn't to consider the transverse pre-camber,By usig the program of 2-D bars and the detached model satisfied results was got.8figs.,9refs. |
| Keywords: | concrete filled steel tube creep calculation method detached section conversed section combined section Biography:TIAN Zhong-chu male born in 1963 professor structure analysis and construction control for long-span bridge. |
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