Seismic performance of 3D printed reinforced concrete walls: Experimental study and numerical simulation

IF 5.6 1区工程技术 Q1 ENGINEERING, CIVIL

Engineering Structures Pub Date : 2025-03-22 DOI:10.1016/j.engstruct.2025.120176

Chao Liu , Zhan Liang , Huawei Liu , Yiwen Wu , Yukun Zhang , Guoliang Bai

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引用次数: 0

Abstract

3D printed concrete technology is developing rapidly but faces challenges in large-scale applications because the seismic performance of these structures is unclear. This study investigated the seismic performance of 3D printed reinforced concrete wall (3DPRCW) under quasistatic cyclic loading and developed a finite element model based on the parameters of interfacial pore defects to conduct parametric analyses. The results showed that interlayer interfaces significantly affected crack initiation and propagation, resulting in X-shaped through-cracks and shear compression failure. The ultimate load-bearing capacity of the rectangular cross-section was 17.8 % higher than that of the corrugated cross-section. The load-bearing capacity of the 3DPRCW was linearly positively correlated with the axial compression ratio in the range of 0.1–0.3, whereas increasing the core column’s concrete strength had no significant effect. The failure mechanism was analyzed based on interfacial pore defects. These findings provide critical insights into seismic design methodologies for 3DPRCW structures.

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来源期刊

Engineering Structures 工程技术-工程：土木

CiteScore

10.20

自引率

14.50%

发文量

1385

审稿时长

67 days

期刊介绍： Engineering Structures provides a forum for a broad blend of scientific and technical papers to reflect the evolving needs of the structural engineering and structural mechanics communities. Particularly welcome are contributions dealing with applications of structural engineering and mechanics principles in all areas of technology. The journal aspires to a broad and integrated coverage of the effects of dynamic loadings and of the modelling techniques whereby the structural response to these loadings may be computed. The scope of Engineering Structures encompasses, but is not restricted to, the following areas: infrastructure engineering; earthquake engineering; structure-fluid-soil interaction; wind engineering; fire engineering; blast engineering; structural reliability/stability; life assessment/integrity; structural health monitoring; multi-hazard engineering; structural dynamics; optimization; expert systems; experimental modelling; performance-based design; multiscale analysis; value engineering. Topics of interest include: tall buildings; innovative structures; environmentally responsive structures; bridges; stadiums; commercial and public buildings; transmission towers; television and telecommunication masts; foldable structures; cooling towers; plates and shells; suspension structures; protective structures; smart structures; nuclear reactors; dams; pressure vessels; pipelines; tunnels. Engineering Structures also publishes review articles, short communications and discussions, book reviews, and a diary on international events related to any aspect of structural engineering.