Open AccessFinite element analysis of the mechanical behavior of a bi-hexagon grid structure
Author(s) -
Xiaobin Qu,
Yingxue Yao
Publication year - 2022
Publication title -
advances in mechanical engineering/advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
eISSN - 1687-8140
pISSN - 1687-8132
DOI - 10.1177/16878132221091661
Subject(s) - grid , structural engineering , finite element method , modular design , stiffness , connection (principal bundle) , deformation (meteorology) , layer (electronics) , joint (building) , computer science , span (engineering) , grid connection , space (punctuation) , topology (electrical circuits) , engineering , geometry , materials science , mathematics , electrical engineering , composite material , operating system
The space grid structure is widely used in large-span and large-scale buildings due to its excellent stiffness and lightweight. However, the joint connection is complicated since many struts emanate from one joint. In this paper, we proposed a novel joint connection with five struts and a space grid structure called the bi-hexagon grid structure (BHGS). The mechanical behavior of the proposed grids was investigated by comparing different double-layer and multi-layer grids by virtue of the Ansys parameter design language. The results show that the proposed structure can significantly reduce material consumption and improve installation efficiency. The comparison results also show the BHGS has a good stress distribution under uniform surface loads. However, the deformation is slightly large, which is acceptable considering the practical application. A configuration method and mechanical behaviors of a double-layer dome based on the bi-hexagon grid structure were presented as a particular application as well as the structural optimization. In addition, an assembly strategy was further given to realize the modular design.