A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Repairing method of concrete bridge deck
The invention discloses a repairing method of a concrete bridge deck. The repairing method comprises the following steps that a damaged or deteriorated first concrete protection layer on the concrete bridge deck is removed; and UHPC is poured to form a second concrete protection layer. The damaged or degraded first concrete protection layer is firstly removed, and then the UHPC is poured, so that a combined bridge deck structure of a common concrete structure and a UHPC outer layer can be formed, and parts, such as a common concrete bridge deck, which are easily damaged by the coupling effect of loads and environments (freezing and thawing, chlorine salts and the like) can be protected by the UHPC layer (the second concrete protection layer) with high strength, high durability and low permeability. And on the premise that the weight of an existing bridge is slightly increased or not increased, the overall performance of the bridge deck structure can be improved, so that the safety and durability of the bridge are greatly improved, and the repairing effect is high.
本发明公开了一种混凝土桥面的修复方法。该修复方法包括以下步骤：清除混凝土桥面上已损伤或劣化的第一混凝土保护层；浇筑UHPC，以形成第二混凝土保护层。先清除已损伤或劣化的第一混凝土保护层再浇筑UHPC，能够形成普通混凝土结构与UHPC外层的组合桥面结构，使普通混凝土桥面等易受荷载与环境(冻融、氯盐等)耦合作用损伤的部位能够得到高强度、高耐久、低渗透的UHPC层(第二混凝土保护层)保护。且能够在少量增加或不增加既有桥梁重量的前提下，提高桥面结构的整体性能，从而实现桥梁安全性和耐久性的大幅提升，修复效果较高。
Repairing method of concrete bridge deck
The invention discloses a repairing method of a concrete bridge deck. The repairing method comprises the following steps that a damaged or deteriorated first concrete protection layer on the concrete bridge deck is removed; and UHPC is poured to form a second concrete protection layer. The damaged or degraded first concrete protection layer is firstly removed, and then the UHPC is poured, so that a combined bridge deck structure of a common concrete structure and a UHPC outer layer can be formed, and parts, such as a common concrete bridge deck, which are easily damaged by the coupling effect of loads and environments (freezing and thawing, chlorine salts and the like) can be protected by the UHPC layer (the second concrete protection layer) with high strength, high durability and low permeability. And on the premise that the weight of an existing bridge is slightly increased or not increased, the overall performance of the bridge deck structure can be improved, so that the safety and durability of the bridge are greatly improved, and the repairing effect is high.
本发明公开了一种混凝土桥面的修复方法。该修复方法包括以下步骤：清除混凝土桥面上已损伤或劣化的第一混凝土保护层；浇筑UHPC，以形成第二混凝土保护层。先清除已损伤或劣化的第一混凝土保护层再浇筑UHPC，能够形成普通混凝土结构与UHPC外层的组合桥面结构，使普通混凝土桥面等易受荷载与环境(冻融、氯盐等)耦合作用损伤的部位能够得到高强度、高耐久、低渗透的UHPC层(第二混凝土保护层)保护。且能够在少量增加或不增加既有桥梁重量的前提下，提高桥面结构的整体性能，从而实现桥梁安全性和耐久性的大幅提升，修复效果较高。
Repairing method of concrete bridge deck
混凝土桥面的修复方法
2021-11-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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