Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multi-unit post-fire concrete box girder bridge damage repairing structure and repairing method
The invention relates to the field of concrete bridge damage maintenance, and provides a multi-unit post-fire concrete box girder bridge damage repairing structure and method. A fire damage area exists on a main box girder of the concrete box girder bridge, the repairing structure is applied to repairing the fire damage area, and the repairing structure comprises an ultra-high performance concrete-steel bar repairing unit, a carbon fiber repairing unit, an epoxy cement mortar repairing unit and a coating repairing unit which are connected in sequence. The repairing structure has the advantages that different repairing units are adopted for repairing concrete box girder areas with different fire damage degrees, and compared with repairing structures such as single pasting steel plates, carbon fiber cloth and externally wrapped concrete reinforcement, the repairing structure can effectively improve the bearing capacity and rigidity of the damaged main body box girder, and the repairing structure is simple in structure and convenient to use. And the secondary damage risk caused by reinforcing construction to the beam body can be greatly reduced, the use amount of maintenance materials is reduced, and the reinforcing cost is reduced. The repairing structure is reliable, effective, high in pertinence and good in applicability.
本发明涉及混凝土桥梁损伤维修领域，提供一种多单元的火灾后混凝土箱梁桥损伤修复结构及修复方法。所述混凝土箱梁桥的主体箱梁上存在火灾损伤区域，所述修复结构应用于修复火灾损伤区域，修复结构包括依次连接的超高性能混凝土‑钢筋修复单元、碳纤维修复单元、环氧水泥砂浆修复单元和涂装修复单元。优点：本发明针对受火损伤程度不同的混凝土箱梁区域，采用不同维修单元予以修复，与单一粘贴钢板、碳纤维布、外包混凝土加固等修复结构相比，该修复结构除了能有效提升受损主体箱梁承载能力和刚度外，还能大大降低加固施工给梁体带来二次损伤风险，并减少维修材料用量，降低加固费用。该修复结构可靠有效、针对性强，适用性好。
Multi-unit post-fire concrete box girder bridge damage repairing structure and repairing method
The invention relates to the field of concrete bridge damage maintenance, and provides a multi-unit post-fire concrete box girder bridge damage repairing structure and method. A fire damage area exists on a main box girder of the concrete box girder bridge, the repairing structure is applied to repairing the fire damage area, and the repairing structure comprises an ultra-high performance concrete-steel bar repairing unit, a carbon fiber repairing unit, an epoxy cement mortar repairing unit and a coating repairing unit which are connected in sequence. The repairing structure has the advantages that different repairing units are adopted for repairing concrete box girder areas with different fire damage degrees, and compared with repairing structures such as single pasting steel plates, carbon fiber cloth and externally wrapped concrete reinforcement, the repairing structure can effectively improve the bearing capacity and rigidity of the damaged main body box girder, and the repairing structure is simple in structure and convenient to use. And the secondary damage risk caused by reinforcing construction to the beam body can be greatly reduced, the use amount of maintenance materials is reduced, and the reinforcing cost is reduced. The repairing structure is reliable, effective, high in pertinence and good in applicability.
本发明涉及混凝土桥梁损伤维修领域，提供一种多单元的火灾后混凝土箱梁桥损伤修复结构及修复方法。所述混凝土箱梁桥的主体箱梁上存在火灾损伤区域，所述修复结构应用于修复火灾损伤区域，修复结构包括依次连接的超高性能混凝土‑钢筋修复单元、碳纤维修复单元、环氧水泥砂浆修复单元和涂装修复单元。优点：本发明针对受火损伤程度不同的混凝土箱梁区域，采用不同维修单元予以修复，与单一粘贴钢板、碳纤维布、外包混凝土加固等修复结构相比，该修复结构除了能有效提升受损主体箱梁承载能力和刚度外，还能大大降低加固施工给梁体带来二次损伤风险，并减少维修材料用量，降低加固费用。该修复结构可靠有效、针对性强，适用性好。
Multi-unit post-fire concrete box girder bridge damage repairing structure and repairing method
多单元的火灾后混凝土箱梁桥损伤修复结构及修复方法
CHEN YINGZHEN (Autor:in) / XU ZHAOFENG (Autor:in) / WANG YONGPING (Autor:in) / CAO SHANSHAN (Autor:in) / XIAO YANTING (Autor:in) / PENG WENXING (Autor:in)
16.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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