摘要
桥梁设计中的桥墩一般是空心薄壁结构,由于自然界中诸多温度效应的影响,使得桥墩中混凝土的应力分布有所不同,从而导致在混凝土施工时的水化热不同。采用有限元模型分析不同温度下混凝土应力的分布情况,探寻在不同温度下墩身应力的分布规律,包括冬季施工时的5℃和夏季施工时的40℃,为合理设计墩身结构和降低水化热提供依据。
The piers in bridge design are generally hollow thin-walled structures.Due to the influence of many temperature effects in nature the stress distribution of concrete piers is different.Thus hydration heat is different in the process of concrete construction.This paper uses the finite element model to analyze the distribution of the concrete effects under different temperature stress and explores the distribution law of pier body stress at different temperatures,including 5 ℃ construction in winter and 40 ℃ construction in summer.Thus provide the basis for the rational design of the pier body structure form and site construction to reduce the heat of hydration.
出处
《盐城工学院学报（自然科学版）》
CAS
2015年第1期70-74,共5页
Journal of Yancheng Institute of Technology:Natural Science Edition
基金
中央财政建筑技术实训基地项目(34113042613)
安徽省教育厅
财政厅省级示范实验实训中心项目(20101474)
关键词
温度效应
有限元
混凝土
水化热
temperature effect
Finite Element
Concrete
Heat of hydration
