A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Soft steel-ECC connected high-energy-consumption self-resetting fabricated bridge pier, bridge pier system and bridge pier construction method
The invention discloses a mild steel-ECC connected high-energy-consumption self-resetting fabricated bridge pier, a bridge pier system and a bridge pier construction method, and relates to the technical field of bridge engineering. In order to mainly solve the problems of poor displacement ductility, insufficient anti-seismic property and difficult repair after an earthquake of the fabricated concrete pier in a high-intensity earthquake area, the invention provides the following technical scheme: the fabricated concrete pier comprises a prefabricated concrete pier, a pile foundation and a slotted plate assembly arranged between the prefabricated concrete pier and the pile foundation; the slotted plate assembly comprises a plurality of upper slotted plates arranged at the bottom of the prefabricated concrete pier and a plurality of lower slotted plates arranged at the top of the pile foundation, the upper slotted plates and the lower slotted plates are arranged at intervals and connected with each other through energy dissipation pieces, ECC concrete is poured into the upper slotted plates and the lower slotted plates, and finally the center-penetrating prestressing tendons are tensioned. The energy dissipation capacity and the self-resetting capacity of the pier can be effectively improved, low-cost and quick repair of the fabricated pier after an earthquake can be achieved, and the structure is low in cost and convenient to construct.
本发明公开了一种软钢‑ECC连接的强耗能自复位装配式桥墩、桥墩体系及桥墩施工方法，涉及桥梁工程技术领域。本发明主要为了解决高烈度地震区装配式混凝土桥墩位移延性差、抗震性能不足以及震后不易修复的问题，提出以下技术方案：其包括预制混凝土桥墩、桩基以及设置在预制混凝土桥墩和桩基之间的开槽板组件；开槽板组件包括设置在预制混凝土桥墩底部的多个上开槽板以及设置在桩基顶部的多个下开槽板，多个上开槽板与多个下开槽板间隔设置，且通过耗能件彼此连接并浇筑ECC混凝土，最后张拉穿心式预应力束。本发明能够有效提升桥墩的耗能能力和自复位能力，并能够实现装配式桥墩的震后低成本、快速修复，该结构成本低廉、施工便利。
Soft steel-ECC connected high-energy-consumption self-resetting fabricated bridge pier, bridge pier system and bridge pier construction method
The invention discloses a mild steel-ECC connected high-energy-consumption self-resetting fabricated bridge pier, a bridge pier system and a bridge pier construction method, and relates to the technical field of bridge engineering. In order to mainly solve the problems of poor displacement ductility, insufficient anti-seismic property and difficult repair after an earthquake of the fabricated concrete pier in a high-intensity earthquake area, the invention provides the following technical scheme: the fabricated concrete pier comprises a prefabricated concrete pier, a pile foundation and a slotted plate assembly arranged between the prefabricated concrete pier and the pile foundation; the slotted plate assembly comprises a plurality of upper slotted plates arranged at the bottom of the prefabricated concrete pier and a plurality of lower slotted plates arranged at the top of the pile foundation, the upper slotted plates and the lower slotted plates are arranged at intervals and connected with each other through energy dissipation pieces, ECC concrete is poured into the upper slotted plates and the lower slotted plates, and finally the center-penetrating prestressing tendons are tensioned. The energy dissipation capacity and the self-resetting capacity of the pier can be effectively improved, low-cost and quick repair of the fabricated pier after an earthquake can be achieved, and the structure is low in cost and convenient to construct.
本发明公开了一种软钢‑ECC连接的强耗能自复位装配式桥墩、桥墩体系及桥墩施工方法，涉及桥梁工程技术领域。本发明主要为了解决高烈度地震区装配式混凝土桥墩位移延性差、抗震性能不足以及震后不易修复的问题，提出以下技术方案：其包括预制混凝土桥墩、桩基以及设置在预制混凝土桥墩和桩基之间的开槽板组件；开槽板组件包括设置在预制混凝土桥墩底部的多个上开槽板以及设置在桩基顶部的多个下开槽板，多个上开槽板与多个下开槽板间隔设置，且通过耗能件彼此连接并浇筑ECC混凝土，最后张拉穿心式预应力束。本发明能够有效提升桥墩的耗能能力和自复位能力，并能够实现装配式桥墩的震后低成本、快速修复，该结构成本低廉、施工便利。
Soft steel-ECC connected high-energy-consumption self-resetting fabricated bridge pier, bridge pier system and bridge pier construction method
一种软钢-ECC连接的强耗能自复位装配式桥墩、桥墩体系及桥墩施工方法
QI QIMING (author) / LI ZHIZHONG (author) / YANG HUAPING (author) / CHEN XIAOPING (author) / JIANG BO (author) / SHAO JUNHU (author) / DING SHIHAI (author) / WAN CHUQI (author) / LI PENGPAI (author) / GONG WANTING (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2024