Connecting piece for steel-concrete composite structure and construction method: Fid-Bau Portal

Connecting piece for steel-concrete composite structure and construction method

JIA BUYU / MAO SIYI / CHEN YANGWEN / YU XIAOLIN / WU YU / TAN ZHONGDE / LUO YUFAN / CHEN YUXUAN / YU CHUNYI / ZHENG AOTENG / ... [mehr]

Abstract

The invention discloses a connecting piece for a steel-concrete composite structure and a construction method. The connecting piece comprises an inverted-cone nut, a screw, an elastic sleeve and a nut, the minimum end of the inverted-cone nut is connected with one end of the screw, the other end of the screw is connected with the nut, the elastic sleeve is connected to a rod body of the screw in a sleeving mode, and the elastic sleeve is positioned between the inverted cone nut and the nut; the elastic sleeve comprises an elastic steel plate, and the elastic steel plate surrounds a rod body of the screw and is wound by at least three circles to form the sleeve. According to the connecting piece, the nut is screwed down, so that the elastic sleeve is squeezed and pushed by the inverted-cone nut, the diameter of the elastic sleeve is increased, the anchoring effect is generated, the inverted-cone nut provides the anchoring effect, the elastic sleeve increases the vertical tension of the screw and bears certain tension, the pulling resistance of the connecting piece is improved, and the shear strength and the shear rigidity of the connecting piece are improved through the screw; the connecting piece has anti-pulling and anti-shearing performance.

本发明公开了一种用于钢‑混凝土组合结构的连接件及施工方法，包括倒锥螺帽、螺杆、弹性套管和螺母，所述倒锥螺帽的最小端与螺杆的一端连接，所述螺杆的另一端与螺母连接，所述弹性套管套接于螺杆的杆身，且所述弹性套管位于倒锥螺帽和螺母之间；所述弹性套管包括弹性钢板，所述弹性钢板围绕螺杆的杆身，且至少缠绕三圈形成套管。此连接件拧紧螺母使弹性套管受到倒锥螺帽的挤推，弹性套管的直径增大，产生锚固效应，倒锥螺帽提供锚固作用，弹性套管增加螺杆的竖向拉力，且承受一定的拉力，增加连接件的抗拔性能，螺杆增加了连接件的抗剪强度和抗剪刚度，连接件具备抗拔和抗剪性能。

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