不同浇筑高度下闸墩温度应力分析  

Temperature Stress Analysis of Gate Piers at Different Pouring Heights

作　　者：余洋 YU Yang(Henan Water Resources Investment Group Co.Ltd.,Zhengzhou 454000,China)

机构地区：[1]河南水利投资集团有限公司,河南郑州454000

出　　处：《海河水利》2024年第9期90-92,共3页Haihe Water Resources

摘　　要：闸墩是水工结构中常见的大体积混凝土结构,其温度应力控制是防控温度裂缝产生的核心要素。结合实例对闸墩结构不同浇筑高度下温度应力变化进行分析,明确了温度应力随浇筑高度变化规律,并结合闸墩结构特殊尺寸构造,揭示了闸墩温度传导路径和模式。结果表明,对于闸墩类长度远大于宽度的大体积混凝土结构,温度应力随着时间增加先增大后减小,且最大温度应力随高度增加先增大后降低,本工程中闸墩高度为4m时温度应力最大。Hydraulic gate piers are common large volume concrete structures in hydraulic structures,and their temperature stress control is the core element of preventing and controlling temperature cracks.The variations of temperature stresses under different pouring heights of gate pier structures were analyzed combined with examples,the law of temperature stress variation with pouring height was clarified,and the temperature conduction path and mode of the gate pier were revealed combined with the special dimension structure of the gate pier.The results indicated that for the large volume concrete structures with gate pier types where the length was much greater than the width,the temperature stress increased first and then decreased with time,and the maximum temperature stress increased first and then decreased with the increase of the gate pier height.In the project of this paper,the temperature stress was maximum when the gate pier height was 4 m.

关 键 词：闸墩 浇筑高度 温度应力 数值模拟 

分 类 号：TV662.2[水利工程—水利水电工程] TV698.11