A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Highway-railway flat layer bridge tower penetrating cantilever type steel box girder cable-stayed bridge
The invention relates to a highway-railway flat layer bridge tower penetrating cantilever type steel box girder cable-stayed bridge. A main girder thereof comprises a plurality of main girder standardsections and at least one bridge tower penetrating transition section allowing the bridge tower penetration; the bridge tower penetrating transition sections and bridge towers are the same in numberand are arranged in a one-to-one correspondence mode, and the main girder standard sections and bridge spans are the same in number and are arranged in a one-to-one correspondence mode; each bridge tower penetrating transition section is connected with the adjacent main girder standard section through a main girder change section; a cantilever type steel box girder is adopted in each main girder standard section, so that the bending and torsional rigidity and wind resistance of main girders and windmill bridge performance can be improved, and the steel consumption of the main girders is reduced; the bridge tower penetrating transition sections adopt a separated type steel box girder, the main girder change sections are integral type steel box girders, and organic smooth connection betweenthe bridge tower penetrating transition sections and the main girder standard sections is achieved through the main girder change sections of the integral type steel box girder structures. The key technical problem that the section of a traditional cantilever type steel box girder cannot be suitable for a highway-railway flat layer bridge tower middle penetration scheme is solved.
本发明涉及一种公铁平层桥塔中穿挑臂式钢箱梁斜拉桥，其主梁包括多个主梁标准段以及至少一个供桥塔中穿的桥塔中穿过渡段，桥塔中穿过渡段与桥塔的数量相同并且一一对应配置，主梁标准段与桥跨的数量相同并且一一对应配置；每一桥塔中穿过渡段通过主梁变化段与相邻的主梁标准段连接；主梁标准段采用挑臂式钢箱梁，能提高主梁的抗弯抗扭刚度以及抗风和风车桥性能，减少主梁用钢量；桥塔中穿过渡段采用分离式钢箱梁，主梁变化段采用整体式钢箱梁，通过整体式钢箱梁结构的主梁变化段实现桥塔中穿过渡段与主梁标准段之间的有机平顺地连接，解决了传统挑臂式钢箱梁断面无法适用于公铁平层桥塔中穿方案的关键技术难题。
Highway-railway flat layer bridge tower penetrating cantilever type steel box girder cable-stayed bridge
The invention relates to a highway-railway flat layer bridge tower penetrating cantilever type steel box girder cable-stayed bridge. A main girder thereof comprises a plurality of main girder standardsections and at least one bridge tower penetrating transition section allowing the bridge tower penetration; the bridge tower penetrating transition sections and bridge towers are the same in numberand are arranged in a one-to-one correspondence mode, and the main girder standard sections and bridge spans are the same in number and are arranged in a one-to-one correspondence mode; each bridge tower penetrating transition section is connected with the adjacent main girder standard section through a main girder change section; a cantilever type steel box girder is adopted in each main girder standard section, so that the bending and torsional rigidity and wind resistance of main girders and windmill bridge performance can be improved, and the steel consumption of the main girders is reduced; the bridge tower penetrating transition sections adopt a separated type steel box girder, the main girder change sections are integral type steel box girders, and organic smooth connection betweenthe bridge tower penetrating transition sections and the main girder standard sections is achieved through the main girder change sections of the integral type steel box girder structures. The key technical problem that the section of a traditional cantilever type steel box girder cannot be suitable for a highway-railway flat layer bridge tower middle penetration scheme is solved.
本发明涉及一种公铁平层桥塔中穿挑臂式钢箱梁斜拉桥，其主梁包括多个主梁标准段以及至少一个供桥塔中穿的桥塔中穿过渡段，桥塔中穿过渡段与桥塔的数量相同并且一一对应配置，主梁标准段与桥跨的数量相同并且一一对应配置；每一桥塔中穿过渡段通过主梁变化段与相邻的主梁标准段连接；主梁标准段采用挑臂式钢箱梁，能提高主梁的抗弯抗扭刚度以及抗风和风车桥性能，减少主梁用钢量；桥塔中穿过渡段采用分离式钢箱梁，主梁变化段采用整体式钢箱梁，通过整体式钢箱梁结构的主梁变化段实现桥塔中穿过渡段与主梁标准段之间的有机平顺地连接，解决了传统挑臂式钢箱梁断面无法适用于公铁平层桥塔中穿方案的关键技术难题。
Highway-railway flat layer bridge tower penetrating cantilever type steel box girder cable-stayed bridge
公铁平层桥塔中穿挑臂式钢箱梁斜拉桥
YAN AIGUO (author) / LIU ZHENBIAO (author) / CUI MIAOMIAO (author) / WANG PENGYU (author) / XIE XIAOHUI (author) / GUO PAN (author) / LI GUILIN (author) / LI DIPING (author) / WANG ZHIPING (author) / GUO ANNA (author)
2021-02-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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