工程设计学报2025，Vol.32Issue(2)：151-158,168,9.
考虑自支撑临界角的3D打印混凝土球壳结构拆分方法与成形实验
Splitting method and forming experiment of 3D printed concrete spherical shell structure considering self-supporting critical angle
摘要
Abstract
In order to achieve the unsupported construction of 3D printed concrete spherical shell structures,a structure splitting method based on self-supporting critical angle is proposed.In this method,the structure splitting problem was converted into a single-objective optimization problem,and the relatively simple and feasible spherical shell structure splitting scheme was obtained by the improved genetic algorithm and dynamically optimized splitting strategy.The spherical shell structure could be split into multiple self-supporting printable units based on the obtained splitting scheme,and the whole structure could be assembled after the splitting units were printed one by one.For the concrete spherical shell structure,the number of splitting units increased with the increase of material self-supporting critical angle.To minimize the adverse effects of the number of splitting units on the subsequent connection and overall performance of the spherical shell structure,the self-supporting critical angle of the concrete material should be limited.The results of field forming experiments show that the proposed method can effectively split the 3D printed concrete spherical shell structure and avoid structural formwork during the printing process,thereby enhancing construction efficiency.关键词
3D打印混凝土/球壳结构/自支撑临界角/遗传算法/结构拆分Key words
3D printed concrete/spherical shell structure/self-supporting critical angle/genetic algorithm/structure splitting分类
土木建筑引用本文复制引用
李胤贤,蒋友宝,刘艳,高鹏翔..考虑自支撑临界角的3D打印混凝土球壳结构拆分方法与成形实验[J].工程设计学报,2025,32(2):151-158,168,9.基金项目
国家自然科学基金资助项目(52378126) （52378126）
湖南建工集团有限公司科技重点项目(JGJTK2022-13) （JGJTK2022-13）
