基于结构仿生学的梁壳组合结构力学性能分析  

Mechanical Performance Analysis of Beam Shell Composite Structure Based on Structural Bionics

作　　者：晏琛 李忠学[1] 林汛达 YAN Chen;LI Zhongxue;LIN Xunda(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou,Zhjiang 310058,China)

机构地区：[1]浙江大学建筑工程学院,浙江杭州310058

出　　处：《建筑施工》2022年第10期2504-2506,2510,共4页Building Construction

基　　金：国家自然科学基金项目(50408022)。

摘　　要：围绕基于结构仿生学的梁壳组合结构,总结了其在伦敦水晶宫、台北101大楼和新型温室空间结构体系等建筑工程领域的应用实例,并通过数值模拟方法,分析了加劲半球壳和蜻蜓翅膀2个算例,进一步探究了梁壳组合结构相较于单纯壳结构的力学性能优势:在梁壳组合结构中,梁贡献了绝大部分的刚度,对承载力有决定性作用,而壳的存在,增大了结构的面积和稳定性,且壳的厚度薄、质量轻,减轻了组合结构的质量,有较好的工程经济性,梁壳组合结构在大跨空间的发展上具有广阔的前景。Focusing on the beam shell composite structure based on structural bionics, its application examples in the fields of architectural engineering, such as the Crystal Palace in London, Taipei 101 Building and the new greenhouse space structure system, are summarized. Through the numerical simulation method, two examples of stiffened hemispherical shells and dragonfly wings are analyzed, and the mechanical performance advantages of the beam shell composite structure compared with the simple shell structure are further explored. In the beam shell composite structure, the beam contributes most of the stiffness, which plays a decisive role in the bearing capacity;the existence of the shell increases the area and stability of the structure, and the thin thickness and light weight of the shell reduce the weight of the composite structure, which has a good engineering economy. The beam shell composite structure has a broad prospect in the development of large span space.

关 键 词：梁壳组合结构 有限单元法 结构仿生学 非线性分析 

分 类 号：TU375[建筑科学—结构工程]