3D打印混凝土砌体抗剪性能试验与数值模拟研究

doi:10.16552/j.cnki.issn1001-1625.2024.1610

硅酸盐通报 ›› 2025, Vol. 44 ›› Issue (8): 2814-2822.DOI: 10.16552/j.cnki.issn1001-1625.2024.1610

3D打印混凝土砌体抗剪性能试验与数值模拟研究

孙浩浩¹, 王一菲², 刘化威², 武怡文³, 王有强², 刘超^1,2

1.西安建筑科技大学理学院,西安 710055;
2.西安建筑科技大学土木学院,西安 710055;
3.江苏科技大学土木工程与建筑学院,镇江 212100

收稿日期:2024-12-24 修订日期:2025-02-27 出版日期:2025-08-15 发布日期:2025-08-22
通信作者: 刘超,教授。E-mail:chaoliu@xauat.edu.cn
作者简介:孙浩浩(2000—),男,硕士研究生。主要从事3D打印混凝土数值模拟方面的研究。E-mail:sunhaohao@xauat.edu.cn
基金资助:
国家自然科学基金(52178251);陕西高校青年创新团队(2023-2026);陕西省重点研发计划三项改革项目(2023GXLH-049);陕西省秦创原“科学家+工程师”队伍建设项目(2023KXJ-242);陕西省教育厅产业化项目(23JC047)

Experimental and Numerical Simulation Study on Shear Performance of 3D Printed Concrete Masonry

SUN Haohao¹, WANG Yifei², LIU Huawei², WU Yiwen³, WANG Youqiang², LIU Chao^1,2

1. School of Science, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
3. School of Architecture and Civil Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China

Received:2024-12-24 Revised:2025-02-27 Published:2025-08-15 Online:2025-08-22

摘要/Abstract

摘要： 作为建筑工业化转型的重要支撑,3D打印混凝土砌体(3DPCM)结构的抗剪性能研究不足,缺乏结构设计理论,这制约了3D打印混凝土技术的规模化应用。为研究3DPCM的抗剪性能及其影响因素,设计两种斜向肋条空腔结构的3DPCM,分析3DPCM在剪切荷载作用下的破坏模式与强度。基于Cohesive黏聚力单元建立同比例有限元模型,系统探讨混凝土材料强度、空腔结构形式及层间界面黏结强度参数对3DPCM抗剪性能的影响。结果表明,两种空腔结构的3DPCM均以双剪破坏为主,斜向肋条数量增加可显著提升抗剪强度。数值模拟分析表明:层间黏结强度对抗剪性能影响显著,且呈正相关;空腔结构中的斜向肋条分布越均匀、抗剪截面面积越大,抗剪强度越高。研究结果可为3D打印混凝土结构设计提供理论依据。

关键词: 3D打印混凝土, 砌体结构, 抗剪性能, 有限元模拟, 空腔结构

Abstract: As an important support for the transformation of building industrialization, 3D printed concrete masonry (3DPCM) has insufficient research on the shear performance of structures and lacks structural design theory, which restricts the large-scale application of 3D printed concrete technology. To investigate the shear performance and influencing factors of 3DPCM, two types of 3DPCM with inclined ribbed cavity configurations were designed, and their failure modes and shear strength under shear load were analyzed. A proportional finite element model incorporating Cohesive elements was established to systematically explore the effects of key parameters, including material strength, cavity configurations, and interlayer bond strength on shear performance of 3DPCM. The results demonstrate that the 3DPCM of the two cavity configurations primarily exhibit double-shear failure, and an increase in the number of inclined ribs significantly enhances shear strength.Numerical simulation analysis shows that the interlayer bond strength has a significant impact on the shear performance and shows a positive correlation. The more evenly the inclined ribs are distributed in the cavity configurations and the larger the shear cross-section area is, the higher the shear strength will be. These research results can provide theoretical basis for the design of 3D printed concrete structures.

Key words: 3D printed concrete, masonry structure, shear performance, finite element simulation, cavity configurations

中图分类号:

TU528

孙浩浩, 王一菲, 刘化威, 武怡文, 王有强, 刘超. 3D打印混凝土砌体抗剪性能试验与数值模拟研究[J]. 硅酸盐通报, 2025, 44(8): 2814-2822.

SUN Haohao, WANG Yifei, LIU Huawei, WU Yiwen, WANG Youqiang, LIU Chao. Experimental and Numerical Simulation Study on Shear Performance of 3D Printed Concrete Masonry[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(8): 2814-2822.

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3D打印混凝土砌体抗剪性能试验与数值模拟研究

Experimental and Numerical Simulation Study on Shear Performance of 3D Printed Concrete Masonry

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