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A platform for research: civil engineering, architecture and urbanism
Beam column reinforcing joint for eccentric connection of long rectangular column and beam and design method of beam column reinforcing joint
The invention provides a beam column reinforcing joint for eccentric connection of a long rectangular column and a beam and a design method. The reinforcing joint comprises a steel beam, a steel pipe concrete column and a reinforcing joint structure between the beam column. The reinforcing joint structure between the beam columns comprises a joint core area and a non-joint core area, horizontal diaphragm plates are arranged in steel pipes of the joint core area and the non-joint core area, concrete is poured into the steel pipes, and meanwhile vertical partition plates and horizontal steel bars are additionally arranged in the steel pipes of the joint core area. And locally thickening the wall of the steel pipe column close to the eccentric side in the checking calculation direction of the node core area. Innovation is conducted from the basic principles of the stress mechanism, the shear bearing capacity calculation formula, the node core area width value and the like of the beam-column node formed by eccentrically connecting the long rectangular concrete filled steel tubular column and the steel beam. After the beam column reinforcing joint is adopted, the shear bearing capacity and the anti-seismic ductility performance of a joint core area are greatly improved. A beam-column joint shear bearing capacity formula in an existing design specification standard is only suitable for the situation that a square steel pipe concrete column is not eccentric, and the beam-column reinforcing joint and the shear bearing capacity calculation method can be applied to the situation that a long rectangular steel pipe concrete column and the beam column are eccentric, and the blank of the existing design specification standard is filled up.
本发明提出了一种长矩形柱与梁偏心连接的梁柱加强节点及设计方法，该加强节点包括钢梁、钢管混凝土柱和梁柱之间的加强节点结构。其中梁柱之间的加强节点结构包括节点核心区和非节点核心区，在节点核心区和非节点核心区的钢管内设置水平横隔板并灌注混凝土，同时在节点核心区的钢管内增设竖向分隔板和水平钢筋，并对节点核心区验算方向靠近偏心一侧的钢管柱壁进行局部加厚。本发明从长矩形钢管混凝土柱与钢梁偏心连接的梁柱节点的受力机理、抗剪承载力计算公式和节点核心区宽度取值等基本原理出发进行创新。采用本发明提供的梁柱加强节点后，节点核心区的抗剪承载力和抗震延性性能得到了较大提高。现行设计规范标准中的梁柱节点抗剪承载力公式仅适用于方形钢管混凝土柱且梁柱无偏心的情况，本发明提供的梁柱加强节点及抗剪承载力计算方法可应用于长矩形钢管混凝土柱和梁柱偏心的情况，填补了现行设计规范标准的空白。
Beam column reinforcing joint for eccentric connection of long rectangular column and beam and design method of beam column reinforcing joint
The invention provides a beam column reinforcing joint for eccentric connection of a long rectangular column and a beam and a design method. The reinforcing joint comprises a steel beam, a steel pipe concrete column and a reinforcing joint structure between the beam column. The reinforcing joint structure between the beam columns comprises a joint core area and a non-joint core area, horizontal diaphragm plates are arranged in steel pipes of the joint core area and the non-joint core area, concrete is poured into the steel pipes, and meanwhile vertical partition plates and horizontal steel bars are additionally arranged in the steel pipes of the joint core area. And locally thickening the wall of the steel pipe column close to the eccentric side in the checking calculation direction of the node core area. Innovation is conducted from the basic principles of the stress mechanism, the shear bearing capacity calculation formula, the node core area width value and the like of the beam-column node formed by eccentrically connecting the long rectangular concrete filled steel tubular column and the steel beam. After the beam column reinforcing joint is adopted, the shear bearing capacity and the anti-seismic ductility performance of a joint core area are greatly improved. A beam-column joint shear bearing capacity formula in an existing design specification standard is only suitable for the situation that a square steel pipe concrete column is not eccentric, and the beam-column reinforcing joint and the shear bearing capacity calculation method can be applied to the situation that a long rectangular steel pipe concrete column and the beam column are eccentric, and the blank of the existing design specification standard is filled up.
本发明提出了一种长矩形柱与梁偏心连接的梁柱加强节点及设计方法，该加强节点包括钢梁、钢管混凝土柱和梁柱之间的加强节点结构。其中梁柱之间的加强节点结构包括节点核心区和非节点核心区，在节点核心区和非节点核心区的钢管内设置水平横隔板并灌注混凝土，同时在节点核心区的钢管内增设竖向分隔板和水平钢筋，并对节点核心区验算方向靠近偏心一侧的钢管柱壁进行局部加厚。本发明从长矩形钢管混凝土柱与钢梁偏心连接的梁柱节点的受力机理、抗剪承载力计算公式和节点核心区宽度取值等基本原理出发进行创新。采用本发明提供的梁柱加强节点后，节点核心区的抗剪承载力和抗震延性性能得到了较大提高。现行设计规范标准中的梁柱节点抗剪承载力公式仅适用于方形钢管混凝土柱且梁柱无偏心的情况，本发明提供的梁柱加强节点及抗剪承载力计算方法可应用于长矩形钢管混凝土柱和梁柱偏心的情况，填补了现行设计规范标准的空白。
Beam column reinforcing joint for eccentric connection of long rectangular column and beam and design method of beam column reinforcing joint
一种长矩形柱与梁偏心连接的梁柱加强节点及其设计方法
LIU DUN (author) / XING PEILIN (author) / YANG DAN (author) / XIAO YAN (author)
2024-10-01
Patent
Electronic Resource
Chinese
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