Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fabricated frame beam-column connecting joint based on UHPC
The invention discloses a fabricated frame beam-column connecting joint based on UHPC. The fabricated frame beam-column connecting joint comprises a prefabricated concrete square column, a plurality of reserved channels, a plurality of prefabricated concrete square beams, a plurality of lap joint steel bars, a plurality of beam longitudinal bars and a plurality of UHPC post-pouring areas, whereinthe prefabricated concrete square column is vertically arranged on the ground, the prefabricated concrete square beams are placed on the two sides of the prefabricated concrete square column, the prefabricated concrete square column is connected with the prefabricated concrete square beams through the UHPC post-pouring areas, the lap joint steel bars penetrate through reserved channels in the prefabricated concrete square column and the UHPC post-pouring areas, and the beam longitudinal bars penetrate through the prefabricated concrete square beams and the UHPC post-pouring areas, and the beamlongitudinal bars and the lap joint steel bars are connected in a lap joint mode in the post-pouring UHPC areas. According to the prefabricated frame beam-column connecting joint, the UHPC is used atthe beam ends to enable plastic hinges at the beam ends to move outwards, so that the shearing force borne by the joint core area can be reduced, the rotating capacity and the shearing resistance ofjoint test pieces in the plastic hinge area are enhanced, and the ductility and the energy dissipation capacity of the joint are improved.
本发明公开一种基于UHPC的装配式框架梁柱连接节点，包括预制混凝土方柱、多个预留通道、多个预制混凝土方梁、多根搭接钢筋、多根梁纵筋、多个UHPC后浇区域,所述预制混凝土方柱竖直的放置于地面上，所述预制混凝土方梁放置于预制混凝土方柱的两侧，所述预制混凝土方柱与预制混凝土方梁通过UHPC后浇区域连接，所述搭接钢筋穿过预制混凝土方柱内的预留通道和UHPC后浇区域，所述梁纵筋穿过预制混凝土方梁和UHPC后浇区域，所述梁纵筋和搭接钢筋在后浇UHPC区域搭接连接。本发明通过在梁端使用UHPC使梁端塑性铰外移,这样能够降低节点核心区所受的剪力，增强节点试件在塑性铰区的转动能力和抗剪性能,从而提高节点的延性和耗能能力。
Fabricated frame beam-column connecting joint based on UHPC
The invention discloses a fabricated frame beam-column connecting joint based on UHPC. The fabricated frame beam-column connecting joint comprises a prefabricated concrete square column, a plurality of reserved channels, a plurality of prefabricated concrete square beams, a plurality of lap joint steel bars, a plurality of beam longitudinal bars and a plurality of UHPC post-pouring areas, whereinthe prefabricated concrete square column is vertically arranged on the ground, the prefabricated concrete square beams are placed on the two sides of the prefabricated concrete square column, the prefabricated concrete square column is connected with the prefabricated concrete square beams through the UHPC post-pouring areas, the lap joint steel bars penetrate through reserved channels in the prefabricated concrete square column and the UHPC post-pouring areas, and the beam longitudinal bars penetrate through the prefabricated concrete square beams and the UHPC post-pouring areas, and the beamlongitudinal bars and the lap joint steel bars are connected in a lap joint mode in the post-pouring UHPC areas. According to the prefabricated frame beam-column connecting joint, the UHPC is used atthe beam ends to enable plastic hinges at the beam ends to move outwards, so that the shearing force borne by the joint core area can be reduced, the rotating capacity and the shearing resistance ofjoint test pieces in the plastic hinge area are enhanced, and the ductility and the energy dissipation capacity of the joint are improved.
本发明公开一种基于UHPC的装配式框架梁柱连接节点，包括预制混凝土方柱、多个预留通道、多个预制混凝土方梁、多根搭接钢筋、多根梁纵筋、多个UHPC后浇区域,所述预制混凝土方柱竖直的放置于地面上，所述预制混凝土方梁放置于预制混凝土方柱的两侧，所述预制混凝土方柱与预制混凝土方梁通过UHPC后浇区域连接，所述搭接钢筋穿过预制混凝土方柱内的预留通道和UHPC后浇区域，所述梁纵筋穿过预制混凝土方梁和UHPC后浇区域，所述梁纵筋和搭接钢筋在后浇UHPC区域搭接连接。本发明通过在梁端使用UHPC使梁端塑性铰外移,这样能够降低节点核心区所受的剪力，增强节点试件在塑性铰区的转动能力和抗剪性能,从而提高节点的延性和耗能能力。
Fabricated frame beam-column connecting joint based on UHPC
一种基于UHPC的装配式框架梁柱连接节点
HUANG YUAN (Autor:in) / TAO YUXUAN (Autor:in) / DENG LU (Autor:in) / ZHOU YUN (Autor:in)
08.01.2021
Patent
Elektronische Ressource
Chinesisch
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