基于ANSYS的大体积混凝土温度场计算程序开发

摘要

Most of the temperature field calculation programs at present have certain defects. In light of the merits of ANSYS platform which has complete pretreatment function, powerful equation solver, convenient post-processing function and good openness, a more applicable simulation program of calculating the temperature field of mass concrete structure is proposed and demonstrated based on ANSYS platform. According to the actual pouring progress and thermodynamic parameters, a Roller Compacted Concrete (RCC) dam is simulated and calculated. The difference of the maximum temperature between the calculated values and the measured values at the measurement points is less than 1. 8℃, and the relative difference is within the range from -5% to 5% , which indicates that the calculation program developed on ANSYS platform can be used to simulate and calculate the temperature field of mass concrete structure.%目前大多温度场计算程序均存在一定的缺陷,基于ANSYS的完备前处理功能、强大求解器、方便后处理和良好开放性等优点,提出在ANSYS平台的基础上开发出适用性更强的计算大体积混凝土结构温度场的仿真程序,并对此进行了论证.利用开发出来的温度场计算程序,根据坝体碾压混凝土实际浇筑进度及热力学参数对其进行仿真计算,并将计算成果与实测资料进行对比,各测点温度最高值相差不超过1.8℃,相对差在±5.00％以内,表明开发的程序可以很好地实现对大体积混凝土结构温度场的仿真计算.