文档介绍：第31卷第2期
2 0 1 0 年2 月
东北大学学报( 自然科学版)
Journal of Northeastern University (Natural Science)
Vol131 ,No. 2
Feb. 2 0 1 0
筏板基础混凝土水化热研究及数值模拟
吴献1 , 穆春龙1 , 张黎黎2 , 王成1
(1. 东北大学资源与土木工程学院, 辽宁沈阳 110004 ; 2. 沈阳建筑大学土木工程学院, 辽宁沈阳 110168)
摘要: 从实际工程出发,分析了在混凝土浇筑和固化前期,水化热形成的复杂的温度场·从混凝土28 d
龄期内水化热所形成的温度场及相关计算方法的论证入手,结合工程实例,运用ANSYS 有限元软件,对高层
建筑筏板基础大体积混凝土的温度场进行热分析;初步仿真计算了筏板基础28 d 龄期内的温度分布规律,从
而得到用计算方法预测的温度场,为实现温致开裂趋势评估和制订科学的降温施工工艺的目标提供了阶段
性的成果·
关键词: 大体积混凝土;水化热;筏板基础;温度场;有限元分析
中图分类号: TU 471. 1 + 5 文献标志码: A 文章编号: 100523026 (2010) 0220285204
Research on Concrete Hydration Heat in Raft Foundation and
Numerical Simulation
WU Xian1 , MU Chun2long1 , ZHA N G L i2li2 , WA N G Cheng1
(1. School of Resources & Civil Engineering , Northeastern University , Shenyang 110004 , China ; 2. School of
Civil Engineering , Shenyang Jianzhu University , Shenyang 110168 , China. Correspondent : WU Xian , associate
professor , E2mail : wu2005xian ***@163. com)
Abstract : Starting f rom an actual high2rise building project , the temperature field formed by the
hydration heat in a 282day concrete curing period after concrete placing was discussed , as well as
the calculation relevant to it . The FEA software ANSYS was used for the thermal analysis of the
temperature field formed by the bulky concrete of the raft foundation required for high2rise
buildings. The temperature dist ribution of the raft founda