镁合金建筑模板的拓扑优化设计  

Topology optimization design of magnesium alloy building templates

作　　者：张佳城 谢凌志 何柏 ZAHNG Jiacheng;XIE Lingzhi;HE Bo(College of Architecture&Environment,Sichuan University,Chengdu 610065,China;Institute of New Energy and Low-carbon Technology,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学建筑与环境学院,四川成都610065 [2]四川大学新能源与低碳技术研究院,四川成都610065

出　　处：《四川建筑科学研究》2025年第2期23-32,共10页Sichuan Building Science

摘　　要：中国是全球镁资源最丰富、开采量最大的国家,且镁合金具有密度低、比强度和比刚度高、可回收性好等优点,是制造建筑模板的良好材料。相较于目前广泛应用于建筑领域的铝合金,镁合金的弹性模量较低,镁合金建筑模板无法直接使用铝合金建筑模板的结构尺寸。为了获得更轻质、更经济的建筑模板,采用拓扑优化技术对镁合金建筑模板进行了结构优化研究,得到了一种可靠的镁合金建筑模板结构形式(横肋非均匀分布,横肋与边框、面板之间通过斜支撑连接)。相较于一般结构铝合金建筑模板,该镁合金建筑模板自重降低了约30.53%;相较于一般结构镁合金建筑模板,其最大变形降低了约31.74%;相较于相同结构和变形特征的铝合金建筑模板,其自重降低了约13.31%,轻量化效果明显。China is the world's richest country in magnesium resources and has the largest magnesium production.Magnesium alloys,with their low density,high specific strength and stiffness,and excellent recyclability,are ideal materials for manufacturing building templates.Compared to the aluminum alloy widely used in the construction industry,magnesium alloys have a lower elastic modulus,making it impossible to directly use the structural dimensions of aluminum alloy building templates for magnesium alloy building templates.To achieve lighter and more economical building templates,this study employs topology optimization technology to structurally optimize magnesium alloy building templates.The research has developed a reliable magnesium alloy building template structure(with non-uniformly distributed transverse ribs connected to the frame and panel through diagonal supports),and this building template reduces its weight by approximately 3053%compared to standard aluminum alloy building templates,decreases maximum deformation by about 3174%compared to conventional magnesium alloy building templates,and is about 1331%lighter than aluminum alloy building templates with the same structure and deformation characteristics,demonstrating significant lightweighting effects.

关 键 词：镁合金 建筑模板 拓扑优化 

分 类 号：TU755.21[建筑科学—建筑技术科学]