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Self-resetting steel frame beam-middle column joint and construction method thereof
The invention provides a self-resetting steel frame beam-middle column joint and a construction method thereof. The self-resetting steel frame beam-middle column joint comprises two steel beams; the two steel beams are horizontally arranged on two sides of a middle column; a shape memory alloy bent steel plate is arranged between the flange of each of the steel beams and the flange of the middle column; the shape memory alloy bent steel plates are arranged on the outer sides of the flanges of the steel beams; one ends of the shape memory alloy bent steel plates are connected with the flanges of the steel beam, and the other ends are connected with the flange of the middle column; friction energy dissipaters are symmetrically arranged on two sides of webs of the steel beams; and one ends ofthe friction energy dissipaters are connected with the steel beams, and the other ends are connected with the flange of the middle column. The self-resetting function of the joint is achieved throughplastic deformation of the shape memory alloy bent steel plates; and friction energy dissipation can be achieved between the friction energy dissipaters and the flanges and webs of the steel beams, the friction energy dissipaters and the shape memory alloy bent steel plates generate a synergistic effect to jointly absorb earthquake energy at the joint, the structural ductility and energy dissipation capacity of the steel frame beam-middle column joint are effectively improved, and the post-earthquake repair cost is reduced.
本发明提供了一种自复位钢框架梁‑中柱节点及其施工方法，包括两根钢梁，两根钢梁水平设置在中柱的两侧；钢梁的翼缘与中柱的翼缘之间设置有形状记忆合金弯折钢板，且形状记忆合金弯折钢板设置在钢梁的翼缘外侧；形状记忆合金弯折钢板的一端与钢梁的翼缘连接，另一端与中柱的翼缘连接；摩擦耗能器对称设置在钢梁的腹板两侧，摩擦耗能器的一端与钢梁连接，另一端与中柱的翼缘连接；本发明利用形状记忆合金弯折钢板的塑性变形实现节点的自复位功能；通过摩擦耗能器与钢梁的翼缘及腹板之间能够实现摩擦耗能，并与形状记忆合金弯折钢板产生协同作用，共同吸收节点处的地震能量，有效提高钢框架梁‑中柱节点的结构延性和耗能能力，降低了震后修复成本。
Self-resetting steel frame beam-middle column joint and construction method thereof
The invention provides a self-resetting steel frame beam-middle column joint and a construction method thereof. The self-resetting steel frame beam-middle column joint comprises two steel beams; the two steel beams are horizontally arranged on two sides of a middle column; a shape memory alloy bent steel plate is arranged between the flange of each of the steel beams and the flange of the middle column; the shape memory alloy bent steel plates are arranged on the outer sides of the flanges of the steel beams; one ends of the shape memory alloy bent steel plates are connected with the flanges of the steel beam, and the other ends are connected with the flange of the middle column; friction energy dissipaters are symmetrically arranged on two sides of webs of the steel beams; and one ends ofthe friction energy dissipaters are connected with the steel beams, and the other ends are connected with the flange of the middle column. The self-resetting function of the joint is achieved throughplastic deformation of the shape memory alloy bent steel plates; and friction energy dissipation can be achieved between the friction energy dissipaters and the flanges and webs of the steel beams, the friction energy dissipaters and the shape memory alloy bent steel plates generate a synergistic effect to jointly absorb earthquake energy at the joint, the structural ductility and energy dissipation capacity of the steel frame beam-middle column joint are effectively improved, and the post-earthquake repair cost is reduced.
本发明提供了一种自复位钢框架梁‑中柱节点及其施工方法，包括两根钢梁，两根钢梁水平设置在中柱的两侧；钢梁的翼缘与中柱的翼缘之间设置有形状记忆合金弯折钢板，且形状记忆合金弯折钢板设置在钢梁的翼缘外侧；形状记忆合金弯折钢板的一端与钢梁的翼缘连接，另一端与中柱的翼缘连接；摩擦耗能器对称设置在钢梁的腹板两侧，摩擦耗能器的一端与钢梁连接，另一端与中柱的翼缘连接；本发明利用形状记忆合金弯折钢板的塑性变形实现节点的自复位功能；通过摩擦耗能器与钢梁的翼缘及腹板之间能够实现摩擦耗能，并与形状记忆合金弯折钢板产生协同作用，共同吸收节点处的地震能量，有效提高钢框架梁‑中柱节点的结构延性和耗能能力，降低了震后修复成本。
Self-resetting steel frame beam-middle column joint and construction method thereof
一种自复位钢框架梁-中柱节点及其施工方法
CUI LIU (author) / WANG SHELIANG (author) / ZHANG HANG (author)
2020-12-29
Patent
Electronic Resource
Chinese
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