超长混凝土结构温差收缩效应分析及设计实践

Analysis and engineering practice of temperature variation and shrinkage effects on super-long concrete structures

结合工程实际,介绍超长混凝土结构考虑混凝土收缩、裂缝、徐变等因素的温差计算方法。通过对计算结果进行分析,提出针对混凝土塑性材料特点,应综合考虑应力和变形采用合理的构造措施。通过这些方法和措施,能有效减少混凝土结构中温差造成的影响。

Combined with an engineering project,a temperature variation computing method was presented in design of over-long concrete structures,which took the concrete shrinkage,cracking and creep into account. The paper comes up with the characteristics of the plastic material of concrete by analyzing calculation results,the stress and strain must be taken into account comprehensively adopting reasonable construction measures. All these methods and measures can effectively reduce the impact of temperature variation in concrete structures.