A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Metal energy dissipater installed between framing tower-connected cable-stayed bridge towers and mounting method
The invention discloses an anti-seismic metal energy dissipater installed between two connected towers of a framing connected tower type cable-stayed bridge, which comprises a core unit, a constraint unit and an unbonded structure layer, and the core unit is composed of a working section, a transition section and a connecting section and bears all loads; the constraint unit is composed of a round steel pipe or a square steel pipe; the unbonded structure layer is under the combined action of concrete and the constraint unit, the core unit is restrained from being pressed and bent, a core plate can yield under both tension and pressure, and the effective restraining on the core steel is kept. The metal energy dissipater has the advantages that under the earthquake action, vibration energy transmitted to the tower columns from the ground can be greatly dissipated, and the influence of the vertical displacement difference generated between the tower walls of the two connected towers of the framing connected tower type cable-stayed bridge on the two connected towers of the framing connected tower type cable-stayed bridge is reduced; according to the energy dissipaters arranged in the X-shaped crossed mode, one energy dissipater is subjected to tensile deformation, the other energy dissipater is subjected to compression deformation, the two energy dissipaters are jointly stressed, and the energy dissipation capacity of the energy dissipaters is improved.
本发明公开了一种安装于分幅联塔式斜拉桥两联塔之间的抗震金属消能器，包括核心单元、约束单元和无粘结结构层，所述核心单元由工作段、过渡段和连接段组成，承受全部荷载；所述约束单元由一根圆钢管或方钢管组成；所述无粘结结构层为混凝土与约束单元共同作用，约束核心单元受压屈曲，使芯板在受拉和受压下均能进入屈服，保持对核心钢材的有效约束。其有益效果在于：在地震作用下，能够大幅度耗散由地面传递给塔柱的振动能量，降低分幅联塔式斜拉桥两联塔塔壁之间产生的竖向位移差对分幅联塔斜拉桥两联塔的影响；X形交叉布置的消能器，其中一台发生拉伸变形，另外一台会发生压缩变形，两台消能器共同受力提高了消能器的耗能能力。
Metal energy dissipater installed between framing tower-connected cable-stayed bridge towers and mounting method
The invention discloses an anti-seismic metal energy dissipater installed between two connected towers of a framing connected tower type cable-stayed bridge, which comprises a core unit, a constraint unit and an unbonded structure layer, and the core unit is composed of a working section, a transition section and a connecting section and bears all loads; the constraint unit is composed of a round steel pipe or a square steel pipe; the unbonded structure layer is under the combined action of concrete and the constraint unit, the core unit is restrained from being pressed and bent, a core plate can yield under both tension and pressure, and the effective restraining on the core steel is kept. The metal energy dissipater has the advantages that under the earthquake action, vibration energy transmitted to the tower columns from the ground can be greatly dissipated, and the influence of the vertical displacement difference generated between the tower walls of the two connected towers of the framing connected tower type cable-stayed bridge on the two connected towers of the framing connected tower type cable-stayed bridge is reduced; according to the energy dissipaters arranged in the X-shaped crossed mode, one energy dissipater is subjected to tensile deformation, the other energy dissipater is subjected to compression deformation, the two energy dissipaters are jointly stressed, and the energy dissipation capacity of the energy dissipaters is improved.
本发明公开了一种安装于分幅联塔式斜拉桥两联塔之间的抗震金属消能器，包括核心单元、约束单元和无粘结结构层，所述核心单元由工作段、过渡段和连接段组成，承受全部荷载；所述约束单元由一根圆钢管或方钢管组成；所述无粘结结构层为混凝土与约束单元共同作用，约束核心单元受压屈曲，使芯板在受拉和受压下均能进入屈服，保持对核心钢材的有效约束。其有益效果在于：在地震作用下，能够大幅度耗散由地面传递给塔柱的振动能量，降低分幅联塔式斜拉桥两联塔塔壁之间产生的竖向位移差对分幅联塔斜拉桥两联塔的影响；X形交叉布置的消能器，其中一台发生拉伸变形，另外一台会发生压缩变形，两台消能器共同受力提高了消能器的耗能能力。
Metal energy dissipater installed between framing tower-connected cable-stayed bridge towers and mounting method
一种分幅联塔式斜拉桥塔间金属消能器及安装方法
YANG LIMING (author) / WANG WEI (author) / LI FENG (author) / KANG JIAN (author) / YUE YANG (author) / WANG SHUMING (author) / ZHANG LUSHENG (author) / CHEN BINGUI (author) / HE CHENGHUANG (author) / ZHANG XUEHONG (author)
2021-12-24
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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