东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (2): 285-288.DOI: -

• 论著 • 上一篇    下一篇

筏板基础混凝土水化热研究及数值模拟

吴献;穆春龙;张黎黎;王成;   

  1. 东北大学资源与土木工程学院;沈阳建筑大学土木工程学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-02-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    “十一五”国家科技支撑计划项目(2006BAJ03A01);;

Research on concrete hydration heat in raft foundation and numerical simulation

Wu, Xian (1); Mu, Chun-Long (1); Zhang, Li-Li (2); Wang, Cheng (1)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-02-15 Published:2013-06-20
  • Contact: Wu, X.
  • About author:-
  • Supported by:
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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

Abstract: Starting from an actual high-rise building project, the temperature field formed by the hydration heat in a 28-day 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 high-rise buildings. The temperature distribution of the raft foundation in the 28-day concrete curing period was calculated preliminarily through numerical simulation. Then, the temperature field calculated for prediction was given to evaluate the trend of temperature-induced cracking, by which a temperature-fall technology in foundation construction can be formulated reasonably.

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