3D打印混凝土永久模板叠合柱的抗压性能数值模拟研究
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作者单位:

1.浙江大学 建筑工程学院,杭州 310058;2.山西浙大新材料与化工研究院,太原 030002;3.浙江大学平衡建筑研究中心,杭州 310028

作者简介:

张治成(1977- ),男,博士,副教授,主要从事桥梁结构研究,E-mail:jszzc@zju.edu.cn。
brief: ZHANG Zhicheng(1977- ), PhD, associate professor, main research interest: bridge structures, E-mail: jszzc@zju.edu.cn.

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中图分类号:

TU375.3

基金项目:

浙江省重点研发计划(2021C01022);国家自然科学基金(52079123);浙江省科技计划项目(2022C04005);山西浙大新材料与化工研究院资助项目(2021SZ-TD010、2022SZ-TD016); 浙江大学平衡研究中心专项经费


Numerical simulation analysis on compressive performance of composite columns with 3D printed concrete permanent formwork
Author:
Affiliation:

1.College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, P. R. China;2.Shanxi Zheda New Materials and Chemical Research Institute, Taiyuan 030002, P. R. China;3.Research Center for Balanced Buildings of Zhejiang University, Hangzhou 310028, P. R. China

Fund Project:

Key R & D Plan of Zhejiang Province (No. 2021C01022); National Natural Science Foundation of China (No. 52079123); Science and Technology Plan of Zhejiang Province (No. 2022C04005); Shanxi-Zheda New Materials and Chemical Research Institute (No. 2021SZ-TD010, 2022SZ-TD016); Special Fund from Research Center for Balanced Buildings of Zhejiang University

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    摘要:

    为深入研究3D打印混凝土永久模板叠合柱的抗压性能,基于3D打印混凝土永久模板叠合柱及同尺寸整体现浇对照柱试验建立构件数值模型,模拟分析其轴压荷载-位移响应及失效形态。针对界面粘结性能、现浇混凝土抗压强度、打印模板厚度、荷载偏心距等参数开展3D打印混凝土永久模板叠合柱的抗压性能计算分析,研究表明:叠合柱轴压极限承载力随着薄弱界面剪切强度、刚度及现浇混凝土抗压强度的增大而增大。由于打印材料的抗压强度高于现浇混凝土,叠合柱抗压极限承载力提升率与打印模板厚度呈近似线性关系,叠合圆柱的抗压极限承载力随着荷载偏心距的增大而降低,呈近似线性负相关。此外,偏心距对叠合圆柱极限承载力下降幅度的影响大于现浇圆柱。

    Abstract:

    In order to further investigate the compressive performance of composite columns with 3D printed concrete permanent formwork, an interface based finite element (FE) model was established to analyze the load-displacement response and failure mode of composite columns and the same size cast-in-place columns under axial compression on the basis of the experiment. The parameter sensitivity analysis of composite columns with 3D printed concrete permanent formwork was carried out with consideration of the interface bonding property, compressive strength of cast-in-place concrete, thickness of printing template, and load eccentricity. Results showed that the ultimate axial compression bearing capacity of composite columns increased with the development of shear strength, stiffness of interface and compressive strength of cast-in-place concrete. As the compressive strength of the printing material is higher than that of the cast-in-place concrete, the compressive ultimate bearing capacity of the composite column appeared approximately linear growth with thickness of printing template, and negative linear correlation with the load eccentricity. In addition, the influence of eccentricity on the reduction of the ultimate bearing capacity of composite columns is greater than that of cast-in-place columns.

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张治成,叶志凯,孙晓燕,王海龙,高君峰.3D打印混凝土永久模板叠合柱的抗压性能数值模拟研究[J].土木与环境工程学报(中英文),2024,46(1):194-206. ZHANG Zhicheng, YE Zhikai, SUN Xiaoyan, WANG Hailong, GAO Junfeng. Numerical simulation analysis on compressive performance of composite columns with 3D printed concrete permanent formwork[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2024,46(1):194-206.10.11835/j. issn.2096-6717.2022.112

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  • 收稿日期:2022-05-16
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  • 在线发布日期: 2023-12-05
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