部品構成された鋼管立体トラスの接合部の回転性能に関する研究

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書誌事項

タイトル別名
  • STUDY ON THE ROTATION CAPACITY OF THE CONNECTION OF PIPE SPACE TRUSS COMPOSED OF COMPONENTS
  • ブヒン コウセイサレタ コウカン リッタイ トラス ノ セツゴウブ ノ カイテ

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説明

It is important for structural safety that the connection of a pipe space truss composed of components should have a rotation capacity that assures that brittle fracture, particularly bolt breakage, does not occur even if the rotation angle becomes excessive while an escessive axial force is at work. This paper reports on experiments conducted to check the rotation capacity of the connection of the pipe space truss composed of components when the connection is subjected to an overload. As a resulut of the experiments, the following conclusions were reached. 1. The maximum rotation angle of the connection at the time of bolt fracture is about several times the caluculated value of the member angle of an ordinary space truss while an escessive axial force is at work. 2. The marginal rotation capacity of the connection is defined by the combined plastic deformation of the bolt, end cone, and node. In addition, the bending deformation of the bolt absorbs a considerable part of the rotation angle. 3. An increase in the rotation angle of the connection causes the bolt to bend or deform and thereby creates a prying action at the joint.

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