Temperature Measurement Experiment and Numerical Simulation of Large-Volume Concretes During Their Construction and Maintenance on Side Walls of Subway Station
In this work the temperature of two side walls of a subway station under construction in Shenzhen was monitored,and then the temperature fluctuation characteristics caused by the heat of hydration in the large-volume concrete structure of the side wall of the subway station were analyzed.Then the phenomenon of concrete interior and surface,surface and environment,cooling rate and other phenomena was further analyzed,and the temperature change law of concrete was obtained.ABAQUS finite element software is used to simulate the whole temperature change process.A three-dimensional stress field-temperature field coupling model of the side wall was established,and the result was compared with the experiment data to verify its reliability.The stress state of concrete was analyzed,the principle of temperature stress was verified,the stress concentration of the subway side wall was predicted,and relevant measures to prevent cracks was proposed.
万方数据
维普
