钢板混凝土剪力墙温度应力计算与裂缝防控  

TEMPERATURE STRESS CALCULATION AND CRACK PREVENTION AND CONTROL OF STEEL PLATE CONCRETE SHEAR WALLS

作　　者：郑河舟 Zheng He-zhou

机构地区：[1]中铁十二局集团有限公司,太原030024 [2]中铁十二局集团建筑安装工程有限公司,太原030024

出　　处：《建筑技术开发》2025年第3期144-146,共3页Building Technology Development

基　　金：中铁十二局集团有限公司科技研发计划项目(2022—26)。

摘　　要：由于钢板混凝土组合剪力墙结构采用的混凝土等级较高,导致水化放热量、内外温差较大,施工过程中容易产生温度裂缝,同时存在钢板混凝土剪力墙内部钢筋排布密集,不利于施工的问题。为保证工程质量,在制订施工方案时,对混凝土水化温升和抗裂度进行计算,确定混凝土内、外表面最高温度及最大温差大约出现在浇筑后第六天,并且验算抗裂度发现墙体存在开裂风险,为此提出了相应措施。Due to the high grade of concrete used in the steel plate concrete composite shear wall structure,hydration heat release and large temperature difference between the inside and outside can easily cause temperature cracks during construction.At the same time,there is a problem of dense arrangement of steel bars inside the steel plate concrete shear wall,which is not conducive to construction.To ensure the quality of the project,when formulating the construction plan,the hydration temperature rise and crack resistance of the concrete are calculated.The highest temperature and maximum temperature difference between the inner and outer surfaces of the concrete are determined to occur approximately on the sixth day after pouring,and the crack resistance is checked.It is found that there is a risk of cracking in the wall,and corresponding measures are proposed for this purpose.

关 键 词：钢板混凝土剪力墙 抗裂计算 裂缝防控 

分 类 号：TU398.2[建筑科学—结构工程]