早期混凝土浇筑时组合钢板剪力墙水化热温度场及应力分析  

Hydration heat field and stress analysis of composite steel plate shear wall in early concrete pouring

作　　者：贾玮 何昊[3] 张翔 王中军 郑河舟 乔文涛[4] 代楠 Jia Wei;He Hao;Zhang Xiang;Wang Zhongjun;Zheng Hezhou;Qiao Wentao;Dai Nan(Building and Installing Engineering Co.Ltd of China Railway 12th Bureau Group,Taiyuan 030024,China;China Railway 12th Bureau Group Co.Ltd,Taiyuan 030024,China;China Xiongan Group Public Services Company,Xiong'an New Area 071700,China;School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]中铁十二局集团建筑安装工程有限公司,山西太原030024 [2]中铁十二局集团有限公司,山西太原030024 [3]中国雄安集团公共服务管理有限公司,河北雄安新区071700 [4]石家庄铁道大学土木工程学院,河北石家庄050043

出　　处：《建筑科学》2024年第9期112-120,共9页Building Science

基　　金：中铁十二局集团有限公司科技计划项目(2022-26);河北省杰出青年科学基金项目(E2022210084)。

摘　　要：雄安创新研究院科技园区项目中,应用了组合钢板剪力墙以提高结构整体抗震性能,鉴于其早期水化放热量较高,为严格把控工程质量和指导后续施工,对某块剪力墙的温度及应力的发展情况进行实际监测与分析,以指导后续施工。以实际工程为依托,基于ABAQUS2021/Standard通过二次开发编写Hetval及Film子程序,精确模拟了混凝土水化放热产生的温度应力的数值及变化规律。结果合理且有效地展示了混凝土浇筑过程中,组合钢板剪力墙温度、位移和应力的发展情况,结果表明墙体顶部及栓钉孔四周容易产生温度裂缝,建议采用预热钢板、栓钉表面刷油等方法降低墙体开裂风险,保证施工质量;最后,结合有限元分析结果,优化了钢筋排布密集、连接复杂等问题,为工程顺利完工交付提供了技术支持。The composite steel plate shear wall is applied in the Xiong'an New Area Innovation Research Institute Science and Technology Park project to improve the overall seismic performance of the structure.The temperature and stress development of a shear wall are monitored and analyzed,in order to strictly control the quality of the project and guide the subsequent construction,due to the high hydration heat release of the wall in the early concrete pouring.On the basis of the project and test,the Hetval and Film subroutines are written through secondary development based on ABAQUS 2021/Standard,and the numerical and variation laws of the temperature stress generated by the hydration heat of concrete are accurately simulated.The results effectively show the development of temperature,displacement and stress of the wall during the concrete pouring process.It shows that temperature cracking easily occurs on the top of the wall and around the bolt hole.It is recommended to adopt preheating steel plate and brushing oil on peg surface to reduce the risk of wall cracking and ensure the construction quality.Finally,the problem of dense steel bar arrangement and complex connection are optimized combined with the FEA results,which provides technical support for the completion and delivery of the project.

关 键 词：混凝土组合钢板剪力墙 数值模拟 水化热 温度应力 

分 类 号：TU973[建筑科学—结构工程]