黄河公铁两用桥承台混凝土冬季施工温控仿真分析

Simulation Analysis on Concrete′s Temperature Control Measures for Bearing Platform Using for Highway and Railway Bridge on Yellow River

为了将黄河公铁两用桥承台大体积混凝土在低温条件下浇筑时的温度场控制在一个合理稳定的范围内,以确保工程质量,提出了"内降外保"的综合性施工措施,并采用ANSYS工具进行了温度场仿真计算.数值仿真结果与实测温度变化规律十分吻合,在此基础上总结了大体积混凝土低温条件下施工的温控经验.

When the large scale concrete of bearing platform of highway and raliway bridge on Yellow River is poured,in order to control the temperature field and ensure the engineering quality,the comperehensive construction measures of internal drop and outside keeping temperature is pointed out.The simulating calculation about temperature field is done by using ANSYS,and the results show that,the numerical simulational result tallies goodly with change law of actual temperature.Based on these,the experiences of con...