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A platform for research: civil engineering, architecture and urbanism
The invention relates to a self-resetting steel structure beam column joint capable of consuming energy in stages. Stiffening rib connecting pieces are mounted on the upper portion and the lower portion of the joint of each H-shaped steel beam and an H-shaped steel column; each stiffening rib connecting piece comprises angle steel and a vertical stiffening rib; and a web of each H-shaped steel column serves as a symmetry plane, and a shape memory alloy long screw vertically penetrates through a short limb of the angle steel and a flange of the corresponding H-shaped steel column in sequence on the same side of the symmetry plane. The self-resetting steel structure beam column joint further comprises a plurality of pieces of channel steel; the waist of each piece of channel steel is tightly attached to the web of the corresponding H-shaped steel beam and connected with the web of the corresponding H-shaped steel beam through a high-strength bolt; one end of each piece of channel steel is connected with the flange of the corresponding H-shaped steel column; and a U-shaped metal damper is arranged between the outer side wall of a leg of each piece of channel steel and the inner side wall of the flange of the adjacent H-shaped steel beam. According to the joint, the self-resetting function of the joint under the earthquake action can be achieved through the superelasticity of the shape memory alloy long screws, the preset target of dissipating earthquake energy in stages can be achieved through the shape memory alloy long screws and the U-shaped metal dampers, meanwhile, damaged components can be rapidly dismounted and replaced after an earthquake, and repairability is achieved.
本发明涉及一种可分阶段耗能的自复位钢结构梁柱节点，每个H型钢梁与H型钢柱交接处的上下部位安装加劲肋连接件，其包括角钢和竖向加劲肋，以H型钢柱的腹板为对称面，形状记忆合金长螺杆在对称面同侧顺次垂直穿过角钢的短肢、H型钢柱的翼缘；还包括若干槽钢，槽钢的腰与H型钢梁的腹板紧密贴合并通过高强螺栓连接，槽钢的一端与H型钢柱的翼缘连接，槽钢的腿外侧壁与相邻H型钢梁翼缘内侧壁之间布设U形金属阻尼器；该节点可通过形状记忆合金长螺杆的超弹性实现节点在地震作用下的自复位功能，依靠形状记忆合金长螺杆和U形金属阻尼器可达到分级、分阶段耗散地震能量的预设目标，同时损坏的构件在震后可进行快速拆卸、更换，具有可修复性。
The invention relates to a self-resetting steel structure beam column joint capable of consuming energy in stages. Stiffening rib connecting pieces are mounted on the upper portion and the lower portion of the joint of each H-shaped steel beam and an H-shaped steel column; each stiffening rib connecting piece comprises angle steel and a vertical stiffening rib; and a web of each H-shaped steel column serves as a symmetry plane, and a shape memory alloy long screw vertically penetrates through a short limb of the angle steel and a flange of the corresponding H-shaped steel column in sequence on the same side of the symmetry plane. The self-resetting steel structure beam column joint further comprises a plurality of pieces of channel steel; the waist of each piece of channel steel is tightly attached to the web of the corresponding H-shaped steel beam and connected with the web of the corresponding H-shaped steel beam through a high-strength bolt; one end of each piece of channel steel is connected with the flange of the corresponding H-shaped steel column; and a U-shaped metal damper is arranged between the outer side wall of a leg of each piece of channel steel and the inner side wall of the flange of the adjacent H-shaped steel beam. According to the joint, the self-resetting function of the joint under the earthquake action can be achieved through the superelasticity of the shape memory alloy long screws, the preset target of dissipating earthquake energy in stages can be achieved through the shape memory alloy long screws and the U-shaped metal dampers, meanwhile, damaged components can be rapidly dismounted and replaced after an earthquake, and repairability is achieved.
本发明涉及一种可分阶段耗能的自复位钢结构梁柱节点，每个H型钢梁与H型钢柱交接处的上下部位安装加劲肋连接件，其包括角钢和竖向加劲肋，以H型钢柱的腹板为对称面，形状记忆合金长螺杆在对称面同侧顺次垂直穿过角钢的短肢、H型钢柱的翼缘；还包括若干槽钢，槽钢的腰与H型钢梁的腹板紧密贴合并通过高强螺栓连接，槽钢的一端与H型钢柱的翼缘连接，槽钢的腿外侧壁与相邻H型钢梁翼缘内侧壁之间布设U形金属阻尼器；该节点可通过形状记忆合金长螺杆的超弹性实现节点在地震作用下的自复位功能，依靠形状记忆合金长螺杆和U形金属阻尼器可达到分级、分阶段耗散地震能量的预设目标，同时损坏的构件在震后可进行快速拆卸、更换，具有可修复性。
Self-resetting steel structure beam column joint capable of consuming energy in stages
一种可分阶段耗能的自复位钢结构梁柱节点
2021-04-23
Patent
Electronic Resource
Chinese
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