基于等几何分析的三维混凝土打印形状优化：一种适合打印的结构设计方法

IF 6.4 1区工程技术 Q1 ENGINEERING, CIVIL

Engineering Structures Pub Date : 2025-10-06 DOI:10.1016/j.engstruct.2025.121501

Qian Wan , Li Wang , Xiaodong Huang , Hao Wu , Jay Sanjayan , Javad Hashemi , Guowei Ma

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引用次数: 0

摘要

随着3D混凝土打印技术的发展，打印友好型结构的设计仍然是一个关键挑战，限制了其更广泛的应用。传统的设计方法无法平衡结构性能和制造限制。为了解决这一问题，我们提出了一种基于NURBS曲面和Reissner-Mindlin壳单元的新型打印友好结构设计方法，将几何建模和分析无缝集成。在考虑3dcp特定制造约束的同时，采用形状优化策略来提高材料效率。案例研究证明了该方法在优化控制点、预应力策略和内部结构方面的有效性，从而提高了机械性能和可建造性。这种方法简化了设计过程，最大限度地减少了后处理，并促进了与CAD/CAM工作流程的直接集成，推进了3DCP的自动化。

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Shape optimization based on isogeometric analysis for 3D concrete printing: A design method for printing-friendly structure

With the advancement of 3D concrete printing (3DCP), the design of printing-friendly structures remains a key challenge, limiting its broader application. Traditional design methods fail to balance structural performance and manufacturing constraints. To address this problem, we propose a novel printing-friendly structural design approach based on NURBS surfaces and Reissner-Mindlin shell elements, seamlessly integrating geometric modeling and analysis. A shape optimization strategy is incorporated to enhance material efficiency while considering 3DCP-specific manufacturing constraints. Case studies demonstrate the effectiveness of this method in optimizing control points, prestressing strategies, and internal structures, leading to improved mechanical performance and buildability. This approach streamlines the design process, minimizes post-processing, and facilitates direct integration with CAD/CAM workflows, advancing automation in 3DCP.

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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.