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A platform for research: civil engineering, architecture and urbanism
Pi-shaped high-strength steel-UHPC (Ultra High Performance Concrete) combined unit, combined beam and construction method
The invention provides a pi-shaped high-strength steel-UHPC (Ultra High Performance Concrete) combined unit, a combined beam and a construction method thereof, and belongs to the technical field of bridge structures. The middle part of the pi-shaped high-strength steel is provided with a steel inner support, and the outer side of the pi-shaped high-strength steel is provided with a steel inclined support; the UHPC bridge deck slab is laid on the two webs of the pi-shaped high-strength steel and the steel inner support; the waterproof bonding layer is laid on the UHPC bridge deck slab; and the asphalt concrete pavement layer is paved on the waterproof bonding layer. Through combined use of the UHPC bridge deck slab and the pi-shaped high-strength steel, the working condition of the wearing layer is effectively improved by utilizing the UHPC bridge deck slab, the risk of rutting, cracking and other diseases of the wearing layer can be reduced, the overall rigidity of the combined structure is greatly improved, the stress state of the UHPC bridge deck slab and the asphalt concrete pavement layer is remarkably improved, and the service life of the pavement layer is prolonged. And the possibility of fatigue damage of the pi-shaped high-strength steel structure is greatly reduced.
本发明提供了一种π型高强钢‑UHPC组合单元、组合梁以及其施工方法，属于桥梁结构技术领域。本发明包括π型高强钢，其中部设置有钢內撑，外侧设置有钢斜撑；UHPC桥面板，其铺设于π型高强钢的两腹板和钢内撑之上；防水粘结层，其铺设于UHPC桥面板之上；沥青混凝土铺装层，其铺设于防水粘结层之上。本发明通过采用UHPC桥面板与π型高强钢的组合使用，利用UHPC桥面板有效改善磨耗层的工作条件，可以降低磨耗层出现车辙开裂等病害的风险，大大提高了组合结构的整体刚度，显著改善了UHPC桥面板和沥青混凝土铺装层的应力状态，大幅降低π型高强钢结构疲劳破坏的可能。
Pi-shaped high-strength steel-UHPC (Ultra High Performance Concrete) combined unit, combined beam and construction method
The invention provides a pi-shaped high-strength steel-UHPC (Ultra High Performance Concrete) combined unit, a combined beam and a construction method thereof, and belongs to the technical field of bridge structures. The middle part of the pi-shaped high-strength steel is provided with a steel inner support, and the outer side of the pi-shaped high-strength steel is provided with a steel inclined support; the UHPC bridge deck slab is laid on the two webs of the pi-shaped high-strength steel and the steel inner support; the waterproof bonding layer is laid on the UHPC bridge deck slab; and the asphalt concrete pavement layer is paved on the waterproof bonding layer. Through combined use of the UHPC bridge deck slab and the pi-shaped high-strength steel, the working condition of the wearing layer is effectively improved by utilizing the UHPC bridge deck slab, the risk of rutting, cracking and other diseases of the wearing layer can be reduced, the overall rigidity of the combined structure is greatly improved, the stress state of the UHPC bridge deck slab and the asphalt concrete pavement layer is remarkably improved, and the service life of the pavement layer is prolonged. And the possibility of fatigue damage of the pi-shaped high-strength steel structure is greatly reduced.
本发明提供了一种π型高强钢‑UHPC组合单元、组合梁以及其施工方法，属于桥梁结构技术领域。本发明包括π型高强钢，其中部设置有钢內撑，外侧设置有钢斜撑；UHPC桥面板，其铺设于π型高强钢的两腹板和钢内撑之上；防水粘结层，其铺设于UHPC桥面板之上；沥青混凝土铺装层，其铺设于防水粘结层之上。本发明通过采用UHPC桥面板与π型高强钢的组合使用，利用UHPC桥面板有效改善磨耗层的工作条件，可以降低磨耗层出现车辙开裂等病害的风险，大大提高了组合结构的整体刚度，显著改善了UHPC桥面板和沥青混凝土铺装层的应力状态，大幅降低π型高强钢结构疲劳破坏的可能。
Pi-shaped high-strength steel-UHPC (Ultra High Performance Concrete) combined unit, combined beam and construction method
π型高强钢-UHPC组合单元、组合梁及施工方法
LUO XIAOYE (author) / YUAN JINBIN (author) / YOU HAOMIN (author) / LI XUNLING (author) / XIE SHIYI (author) / GUO YAFENG (author) / HUANG XIAORONG (author)
2024-10-15
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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