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| 基于温度影响的钢管混凝土脱空机理分析 | |
| 引用本文： | 吴德明,王福敏,殷祥林.基于温度影响的钢管混凝土脱空机理分析[J].重庆交通大学学报(自然科学版),2009,28(2):190-194. |
| 作者姓名： | 吴德明 王福敏 殷祥林 |
| 作者单位： | 1. 重庆交通大学,土木建筑学院,重庆,400074 2. 重庆交通科研设计院,重庆,400067 3. 重庆市地产集团,重庆,400014 |
| 摘 要： | 在简要介绍钢管混凝土拱桥脱空现状的基础上,分析不同来源的温差对钢管混凝土交界面的纵向拉应力和径向拉应力的影响。结果表明:在拱肋纵向,水化热引起的温差和日光、大气温度变化引起的温差都会引起交界面中的钢管和混凝土发生相对滑移;在拱肋径向,日光、大气温度变化引起的温差会导致混凝土发生脱空。 |
| 关 键 词： | 脱空 界面拉应力 黏结强度 水化热 温度 |
Analysis on CFST Disengaging Mechanism Based on Temperature Impact |
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| WU De-ming,WANG Fu-min,YIN Xiang-lin.Analysis on CFST Disengaging Mechanism Based on Temperature Impact[J].Journal of Chongqing Jiaotong University,2009,28(2):190-194. | |
| Authors: | WU De-ming WANG Fu-min YIN Xiang-lin |
| Institution: | 1.School of Civil Engineering & Architecture;Chongqing Jiaotong University;Chongqing 400074;China;2.Chongqing Communications Research & Design Institute;Chongqing 400067;3.Chongqing Land Properties Group;Chongqing 400014;China |
| Abstract: | On the basis of brief introduction to the status quo of concrete-filled steel tubular(CFST) arch bridge disengaging,the impact of temperature from different sources on longitudinal tensile stress and radial direction tensile stress which is in interface between steel tube and core concrete is analyzed.The results show that: in arch rib longitudinal direction,the relative slip in interface between steel tube and core concrete is caused by the difference in temperature resulting from hydration heat,sunlight a... |
| Keywords: | disengaging interface tensile stress bonding strength hydration heat temperature |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |