Computation of Thermal Interface Stress in Two-Layer Concrete Slab Based on Energy Variation Principle

Journal of Chongqing Jiaotong University(Natural Science) ›› 2008, Vol. 27 ›› Issue (4): 555-557.

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Computation of Thermal Interface Stress in Two-Layer Concrete Slab Based on Energy Variation Principle

LI Lin-jian¹, TANG Bo-ming¹, WEI Gang¹, WU Zhi-hui²

1. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China;
2. Chongqing Cheng-Yu Expressway Co. Ltd, Chongqing 400039, China

Received:2007-10-08 Revised:2007-11-09 Online:2008-08-20 Published:2016-11-07

基于能量变分原理的双层板层间温度应力计算

李林健¹, 唐伯明¹, 韦刚¹, 吴志辉²

1. 重庆交通大学土木建筑学院, 重庆 400074;
2. 重庆成渝高速公路有限公司, 重庆 400039

作者简介:李林健(1979-),男(壮族),广西西林县人,硕士研究生,主要从事路面结构研究。E-mail:lilinjian@sohu.com;手机:13452198358。

Abstract

Abstract: In order to calculate thermal interface stress,interaction of two-layer slab and interface restrain impaction of two-layer deformation are analyzed.Based on Goodman model,tangent restrain module and normal restrain module are used for simulating constraints between two-layer slab.The balanced differential equation has been deduced by virtue of energy variation principle.The computation method of interface force has been proposed.

Key words: road engineering, restraint of interface, energy variation principle, thermal stress

摘要： 分析了双层板之间相互作用,以及层间约束对双层板变形的影响,在Goodman模型的基础上,用切向约束刚度和法向刚度模拟层间约束,运用能量变分原理导出了双层板平衡微分方程,提出了层间约束力计算双层板层间温度应力的计算方法。

关键词: 道路工程, 层间约束, 能量变分原理, 温度应力

CLC Number:

U418.6⁺7

LI Lin-jian, TANG Bo-ming, WEI Gang, WU Zhi-hui. Computation of Thermal Interface Stress in Two-Layer Concrete Slab Based on Energy Variation Principle[J]. Journal of Chongqing Jiaotong University(Natural Science), 2008, 27(4): 555-557.

李林健, 唐伯明, 韦刚, 吴志辉. 基于能量变分原理的双层板层间温度应力计算[J]. 重庆交通大学学报（自然科学版）, 2008, 27(4): 555-557.

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Computation of Thermal Interface Stress in Two-Layer Concrete Slab Based on Energy Variation Principle

基于能量变分原理的双层板层间温度应力计算

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