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A platform for research: civil engineering, architecture and urbanism
Plate girder small hinge joint maintenance structure and method based on prefabricated assembly
The invention relates to a plate girder small hinge joint maintenance structure and method based on prefabricated assembly, a concrete pavement layer is composed of a prefabricated part and post-cast strip fast-hardening ultra-high performance concrete, the prefabricated part is arranged on a hinge joint to be reinforced and maintained, the post-cast strip fast-hardening ultra-high performance concrete is poured on the side face and the bottom of the prefabricated part, and the post-cast strip fast-hardening ultra-high performance concrete is poured on the side face and the bottom of the prefabricated part. A new asphalt pavement layer is paved on the prefabricated part; c60 steel fiber concrete is adopted as a prefabricated part, and the compressive strength of the quick-hardening ultra-high performance concrete within 2 hours is larger than or equal to 30 Mpa. According to the structure and the method, concrete paving adopts a combined structure form of prefabricated parts and rapid hardening type ultra-high performance concrete, and a new asphalt paving layer is of a double-layer SMA-13 structure, so that the structure and the method have the characteristics of being rapid in construction and reliable in repairing quality; the method solves the problems of long operation time, slow concrete strength increase, high maintenance cost and the like in the traditional plate girder small hinge joint maintenance process, is very suitable for in-service plate girder small hinge joint maintenance, and is beneficial to rapid traffic recovery.
本发明涉及一种基于预制拼装的板梁小铰缝维修结构及方法，混凝土铺装层由预制构件和后浇带快硬超高性能混凝土构成，预制构件置于待加固维修铰缝上面，预制构件侧面和底部浇筑后浇带快硬超高性能混凝土，预制构件上面摊铺新沥青铺装层；预制构件采用C60钢纤维混凝土，快硬超高性能混凝土的2小时内抗压强度≥30Mpa。该结构及方法中的混凝土铺筑采用预制构件+快硬型超高性能混凝土的组合结构形式，新沥青铺装层为双层SMA‑13结构，因此具备施工迅速、修复质量可靠的特点，解决了在传统板梁小铰缝维修工艺作业时间长、混凝土强度增长缓慢、维修成本高昂等难题，极适应于在役板梁小铰缝维修，有利于快速恢复交通。
Plate girder small hinge joint maintenance structure and method based on prefabricated assembly
The invention relates to a plate girder small hinge joint maintenance structure and method based on prefabricated assembly, a concrete pavement layer is composed of a prefabricated part and post-cast strip fast-hardening ultra-high performance concrete, the prefabricated part is arranged on a hinge joint to be reinforced and maintained, the post-cast strip fast-hardening ultra-high performance concrete is poured on the side face and the bottom of the prefabricated part, and the post-cast strip fast-hardening ultra-high performance concrete is poured on the side face and the bottom of the prefabricated part. A new asphalt pavement layer is paved on the prefabricated part; c60 steel fiber concrete is adopted as a prefabricated part, and the compressive strength of the quick-hardening ultra-high performance concrete within 2 hours is larger than or equal to 30 Mpa. According to the structure and the method, concrete paving adopts a combined structure form of prefabricated parts and rapid hardening type ultra-high performance concrete, and a new asphalt paving layer is of a double-layer SMA-13 structure, so that the structure and the method have the characteristics of being rapid in construction and reliable in repairing quality; the method solves the problems of long operation time, slow concrete strength increase, high maintenance cost and the like in the traditional plate girder small hinge joint maintenance process, is very suitable for in-service plate girder small hinge joint maintenance, and is beneficial to rapid traffic recovery.
本发明涉及一种基于预制拼装的板梁小铰缝维修结构及方法，混凝土铺装层由预制构件和后浇带快硬超高性能混凝土构成，预制构件置于待加固维修铰缝上面，预制构件侧面和底部浇筑后浇带快硬超高性能混凝土，预制构件上面摊铺新沥青铺装层；预制构件采用C60钢纤维混凝土，快硬超高性能混凝土的2小时内抗压强度≥30Mpa。该结构及方法中的混凝土铺筑采用预制构件+快硬型超高性能混凝土的组合结构形式，新沥青铺装层为双层SMA‑13结构，因此具备施工迅速、修复质量可靠的特点，解决了在传统板梁小铰缝维修工艺作业时间长、混凝土强度增长缓慢、维修成本高昂等难题，极适应于在役板梁小铰缝维修，有利于快速恢复交通。
Plate girder small hinge joint maintenance structure and method based on prefabricated assembly
一种基于预制拼装的板梁小铰缝维修结构及方法
TAO DAIBANG (author) / KIM OK-JOO (author) / CHEN LIUJUN (author) / ZHOU YONGJIAN (author) / XIAO HUA (author) / HOU YANGJIU (author) / WANG YOUWEI (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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