Reinforced concrete plate-column joint provided with combined steel plate and manufacturing method of reinforced concrete plate-column joint: Fid-Bau Portal

Reinforced concrete plate-column joint provided with combined steel plate and manufacturing method of reinforced concrete plate-column joint

SHI QINGXUAN / ZHAO WANGHU / JIANG MINGYUE

Abstract

The invention discloses a reinforced concrete plate column joint provided with a combined steel plate and a manufacturing method, and belongs to the field of building structures. Compared with bent reinforcing steel bars, stirrups and anchor bolts, the combined steel plate penetrates through the whole punching damage surface of the reinforced concrete plate column joint, is a continuum on the punching damage surface, is fully stressed and can play the punching resistance effect to the maximum extent; compared with a single steel plate, the combined steel plate is good in integrity, forms a closed space, can restrain concrete, penetrates through a column and is good in anchoring performance. The combined steel plate can slow down the development of punching cracks, the anti-punching effect of the combined steel plate can be fully played, and the anti-punching bearing capacity of the reinforced concrete plate column joint can be remarkably improved. The structure is simple, prefabrication can be carried out in advance, the construction period is shortened, positioning is easy, installation is convenient, concrete slab tension steel bars and compression steel bars are not interfered, longitudinal steel bars of columns are not interfered, and the punching resistance of reinforced concrete slab column joints can be effectively improved.

本发明公开了一种配置组合钢板的钢筋混凝土板柱节点及制造方法，属于建筑结构领域。相比于弯起钢筋、箍筋和锚栓，组合钢板贯穿钢筋混凝土板柱节点整个冲切破坏面，在冲切破坏面上为连续体，受力充分，能够最大程度的发挥其抗冲切效应；相比于单个钢板，组合钢板整体性好，组合钢板形成闭合空间，能够约束混凝土，并且组合钢板穿过柱子，锚固性能好。组合钢板能够减缓冲切裂缝的发展，充分发挥其抗冲切作用，能够显著提高钢筋混凝土板柱节点的抗冲切承载力。本发明构造简单，可以提前预制缩短工期，易于定位，安装方便且不会对混凝土板受拉钢筋，受压钢筋造成干扰，不会对柱子纵向钢筋造成干扰，能有效改善钢筋混凝土板柱节点的抗冲切性能。

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