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A platform for research: civil engineering, architecture and urbanism
Bridge bent frame pier-straining beam joint with compressible bending steel plate
The invention relates to the technical field of bridge engineering, and discloses a bridge bent frame pier-straining beam node with a compressible bending steel plate, which is arranged at the intersection of a pier column and a straining beam and comprises a weakening straining beam positioned at the straining beam towards the connecting end of the pier column, and the section height of the weakening straining beam is smaller than that of the straining beam; the compressible bending steel plate assemblies are located on the upper side and the lower side of the weakening straining beam, and the buckling-restrained cover plate assemblies correspondingly clamp the bending steel plate assemblies on the upper side and the lower side respectively. The two ends of the bent steel plate assemblies on the upper side and the lower side are fixedly connected with pier columns and straining beams correspondingly. The bent steel plate assembly has the characteristic of secondary yield when being pulled and pressed; the bent steel plate assembly has the advantages of being weak first and then strong and large in deformability, the bent frame pier can form a strong-column and weak-beam failure mode under the earthquake action in cooperation with weakening of the small rigidity of the cross section of the straining beam, and the occurrence position of a damaged plastic hinge is controlled to be located at a plastic energy dissipation node.
本发明涉及桥梁工程技术领域，其公开了一种带可受压型弯折钢板的桥梁排架墩‑系梁节点，其设于墩柱和系梁相交处，其包括位于系梁朝向墩柱连接端的削弱系梁，削弱系梁截面高度小于系梁截面高度；可受压型的弯折钢板组件位于削弱系梁上下侧，防屈曲的盖板组件分别对应夹持住上下侧的弯折钢板组件；上下侧的弯折钢板组件的两端分别与墩柱以及系梁固定相连。本发明的弯折钢板组件在受拉、受压时均具有“二次屈服”的特性；弯折钢板组件具有“先弱后强”、变形能力大的特点，配合削弱系梁截面的较小刚度，可以使地震作用下的排架墩形成“强柱弱梁”的破坏模式，控制损伤塑性铰的发生位置处于塑性耗能节点处。
Bridge bent frame pier-straining beam joint with compressible bending steel plate
The invention relates to the technical field of bridge engineering, and discloses a bridge bent frame pier-straining beam node with a compressible bending steel plate, which is arranged at the intersection of a pier column and a straining beam and comprises a weakening straining beam positioned at the straining beam towards the connecting end of the pier column, and the section height of the weakening straining beam is smaller than that of the straining beam; the compressible bending steel plate assemblies are located on the upper side and the lower side of the weakening straining beam, and the buckling-restrained cover plate assemblies correspondingly clamp the bending steel plate assemblies on the upper side and the lower side respectively. The two ends of the bent steel plate assemblies on the upper side and the lower side are fixedly connected with pier columns and straining beams correspondingly. The bent steel plate assembly has the characteristic of secondary yield when being pulled and pressed; the bent steel plate assembly has the advantages of being weak first and then strong and large in deformability, the bent frame pier can form a strong-column and weak-beam failure mode under the earthquake action in cooperation with weakening of the small rigidity of the cross section of the straining beam, and the occurrence position of a damaged plastic hinge is controlled to be located at a plastic energy dissipation node.
本发明涉及桥梁工程技术领域，其公开了一种带可受压型弯折钢板的桥梁排架墩‑系梁节点，其设于墩柱和系梁相交处，其包括位于系梁朝向墩柱连接端的削弱系梁，削弱系梁截面高度小于系梁截面高度；可受压型的弯折钢板组件位于削弱系梁上下侧，防屈曲的盖板组件分别对应夹持住上下侧的弯折钢板组件；上下侧的弯折钢板组件的两端分别与墩柱以及系梁固定相连。本发明的弯折钢板组件在受拉、受压时均具有“二次屈服”的特性；弯折钢板组件具有“先弱后强”、变形能力大的特点，配合削弱系梁截面的较小刚度，可以使地震作用下的排架墩形成“强柱弱梁”的破坏模式，控制损伤塑性铰的发生位置处于塑性耗能节点处。
Bridge bent frame pier-straining beam joint with compressible bending steel plate
一种带可受压型弯折钢板的桥梁排架墩-系梁节点
HONG YU (author) / ZHOU ZHIDA (author) / DENG KAILAI (author) / ZHAO ZHONGKUI (author) / SHEN LINBAI (author) / LI SHENGYU (author) / PU QIANHUI (author)
2025-01-07
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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