Adjustable cable strut node based on annular crossed cable truss structure-membrane roof: Fid-Bau Portal

Adjustable cable strut node based on annular crossed cable truss structure-membrane roof

XUE SUDUO / LU JIAN / LI XIONGYAN / LIU RENJIE

The invention provides an adjustable cable strut node based on annular crossed cable truss structure-membrane roof and relates to the field of a longspan tension integral structure. The invention provides a novel node suitable for a longspan annular crossed cable truss structure-membrane roof, that is, an annular crossed cable truss structure-membrane roof adjustable cable strut node. The node ischaracterized in that firstly, the whole cable can pass through the node without being cut, so that the continuity of the cable is guaranteed. Secondly, the node is simple in structure and clear in force transfer path. Meanwhile, the node can change with the change of an included angle of the crossed angle, and the rotating function of the node can be realized. The node can provide a supporting point and a connection position for mounting of a secondary structure of an upper membrane roof and provide a platform for mounting of the membrane roof. The cable strut node is simple in structure, convenient to manufacture and mount and suitable for longspan and super-longspan annular crossed cable truss structure-membrane roof, can provide strong guarantee for construction of the structure and promotes application of the annular crossed cable truss structure in engineering.

基于环形交叉索桁结构—膜屋盖的可调式索杆节点涉及大跨度张拉整体结构领域。本专利提出了一种适用于大跨度的环形交叉索桁结构—膜屋盖的新型节点，即环形交叉索桁结构—膜屋盖可调式索杆节点。该节点特征：首先该节点可使整根索穿节点而过，而不切断索，保障了索的连贯性。其次，该节点构造简单且传力路径明确。同时，该节点能够随交叉索夹角的变化而变化，可实现节点的转动功能。该节点能够提供上部膜屋盖的二次结构安装时的支撑点和连接位置，为膜屋盖的安装提供了平台。该索杆节点构造简单、制作安装方便，适用于大跨度及超大跨度的环形交叉索桁结构—膜屋盖，能够为该结构的施工提供有力保障，推动了环形交叉索桁结构在工程中的应用。

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