应用研究 2025年 第卷 第22期

DOI: 10.7672 / sgjs2025220090

大体积混凝土温度场数值分析与温控技术

董红刚,郝鹏鑫,郭亮,俞晓亮,马炳剡,王文刚,高新龙

作者简介:

董红刚,高级工程师,E,mail:445662384@ qq. com

作者单位:

陕西建工第二建设集团有限公司,陕西宝鸡 721000

基金项目:

∗国家自然科学基金( 51978213 );国家重点研发计划(2017YFC0703605,2016YFC0701106)

摘要:

国鸿中心项目塔楼基础区域大体积混凝土结构尺寸庞大,采用一次性整体浇筑方案。在大体积混凝土施工过程中,因水化热导致温度升高和不均匀冷却可能会引发温度裂缝,进而影响混凝土的结构强度和耐久性。结合有限元软件 MIDAS / GEN 对基础筏板进行温度场与应力场分析,采取温度控制、大体积混凝土测温、温度试验以及蓄水处理等措施,保证了混凝土的质量,取得了良好的效果。

English:

The foundation area of the Guohong Center project tower has a large volume of concretestructure with large dimensions, and a one,time overall pouring scheme is adopted. During theconstruction of large volume concrete, temperature rise and uneven cooling caused by hydration heat maylead to temperature cracks,which in turn affect the structural strength and durability of the concrete. Bycombining MIDAS / GEN finite element software to analyze the temperature and stress fields of thefoundation raft, measures such as temperature control, temperature measurement of large volumeconcrete, temperature testing, and water storage treatment were taken to ensure the quality of theconcrete and achieve good effect.