Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestress assembled composite emergency vehicle bridge
The invention discloses a prestressed assembled type composite emergency vehicle bridge. Modularized bridge sections are prefabricated and assembled in a factory, single-lug and double-lug connecting pieces are adopted between the bridge sections, the bridge sections can be rapidly assembled in the field in situ, a bridge main beam is made of composite materials, and the total weight of the single bridge section is very light. Compared with a traditional V-shaped prestressed cable arrangement mode, the arrangement mode of the zigzag prestressed cables can greatly reduce the space requirement of a prestressed cable system and improve the adaptability of a bridge to obstacles such as pits, meanwhile, the cable arrangement square structure is powerful in stress on a beam type structure, the overall rigidity of the structure can be greatly improved, the mid-span bending moment of a bridge span can be reduced, and the construction cost is reduced. The bearing capacity of the bridge is improved. Besides, each single bridge section is formed by transversely connecting a plurality of composite square tube beams, and the ends of the square tubes are connected with the metal sleeves in a prestressed sleeve tooth manner, so that through trepanning of the ends of the composite tubes is avoided, and the connection reliability and the connection efficiency are greatly improved.
本发明公开了一种预应力拼装式复合材料应急车行桥。在工厂预制拼装模块化桥节，各桥节之间采用单双耳连接件，可在野外现地快速拼装，桥梁主梁采用复合材料制备，单个桥节总重量很轻。折形预应力索的布置方式，相较于传统“V”形预应力索布置方式，可大幅降低预应力索体系的空间要求，提高桥梁对坑洞等障碍物的适应能力，同时这种布索方对梁式结构受力有力，可大幅提升结构整体刚度，降低桥跨跨中弯矩，提升桥梁的承载能力。此外，单桥节由多个复合材料方管梁横向连接而成，方管端部与金属套的连接采用预应力套管齿的方式，避免对复合材料管端部的贯穿开孔，大幅提升了连接可靠性和连接效率。
Prestress assembled composite emergency vehicle bridge
The invention discloses a prestressed assembled type composite emergency vehicle bridge. Modularized bridge sections are prefabricated and assembled in a factory, single-lug and double-lug connecting pieces are adopted between the bridge sections, the bridge sections can be rapidly assembled in the field in situ, a bridge main beam is made of composite materials, and the total weight of the single bridge section is very light. Compared with a traditional V-shaped prestressed cable arrangement mode, the arrangement mode of the zigzag prestressed cables can greatly reduce the space requirement of a prestressed cable system and improve the adaptability of a bridge to obstacles such as pits, meanwhile, the cable arrangement square structure is powerful in stress on a beam type structure, the overall rigidity of the structure can be greatly improved, the mid-span bending moment of a bridge span can be reduced, and the construction cost is reduced. The bearing capacity of the bridge is improved. Besides, each single bridge section is formed by transversely connecting a plurality of composite square tube beams, and the ends of the square tubes are connected with the metal sleeves in a prestressed sleeve tooth manner, so that through trepanning of the ends of the composite tubes is avoided, and the connection reliability and the connection efficiency are greatly improved.
本发明公开了一种预应力拼装式复合材料应急车行桥。在工厂预制拼装模块化桥节，各桥节之间采用单双耳连接件，可在野外现地快速拼装，桥梁主梁采用复合材料制备，单个桥节总重量很轻。折形预应力索的布置方式，相较于传统“V”形预应力索布置方式，可大幅降低预应力索体系的空间要求，提高桥梁对坑洞等障碍物的适应能力，同时这种布索方对梁式结构受力有力，可大幅提升结构整体刚度，降低桥跨跨中弯矩，提升桥梁的承载能力。此外，单桥节由多个复合材料方管梁横向连接而成，方管端部与金属套的连接采用预应力套管齿的方式，避免对复合材料管端部的贯穿开孔，大幅提升了连接可靠性和连接效率。
Prestress assembled composite emergency vehicle bridge
一种预应力拼装式复合材料应急车行桥
ZHU RUIJIE (Autor:in) / LI FENG (Autor:in) / ZHANG HENGMING (Autor:in) / CHEN YAN (Autor:in) / LIU JIANBANG (Autor:in) / LI RUOYU (Autor:in) / LI DA (Autor:in) / LIU CHENGLIN (Autor:in) / HAO XULONG (Autor:in)
10.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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