高层建筑地下室外墙施工期温度裂缝产生机理及控制措施

Mechanism and Control of Temperature Crack on Outside Walls of High-Rise Building Basements in Construction

结合工程实例对高层建筑地下室外墙采用有限元的方法,针对施工过程中温度作用下裂缝的产生机理进行数值模拟,进行热力学分析和结构分析,探讨在水化热作用下的温度场及应力场,找出可能出现裂缝的部位及影响因素,对其裂缝产生机理进行了深入探讨,并提出控制措施。

In this paper, the finite element method is used to simulate the creating mechanism of temperature crack on outside walls of high-rise building basements in construction. The temperature field is gained by thermo-dynamical analysis and the stress field is gained by structural analysis. Based on above results, the location and influence factors of temperature cracks are found and the mechanism of temperature crack is discussed deeply. In the end, some effectual control measures of temperature cracks are proposed.