Research on the Design of Extruded Vertical Self-locking Connection Nodes of Steel Structure Modular Building
Under the background of"double carbon",steel structure modular building with the advantages of factory prefabrication,rapid construction,green low-carbon,recyclable and so on,has become a hot spot for the development of construction industrialization.The node design of this building system has an important impact on the site construction efficiency.With regard to the corner column node of steel structure modular building,the design study of self-locking node is carried out by drawing on the basic principle of spring clips,which takes into account the node force demand and simple structure.The basic principle,structure and strength design,processing and production methods of the node are discussed systematically,and the basic stress performance of the node is analyzed and studied by using finite element numerical simulation software;the advantages and disadvantages of the node are analyzed,and the on-site construction and installation methods are given,meanwhile,the design of the unlocking structure and the design of the structure of the horizontal interconnecting vertical self-locking node are provided as well as the design of the structure of the additional functions.The node has the advantages of clear principle,simple structure,no need for construction operation space,no need to leave construction holes,no weakening to the node members,and quick assembly under the premise of meeting the force demand,which provides useful reference for the node design and research of steel structure modular building.
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