Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Railway steel-concrete partial cable-stayed bridge composite beam structure
The invention discloses a composite beam structure of a railway steel-concrete partial cable-stayed bridge. When the span of an existing concrete cable-stayed bridge exceeds 300 m, the existing concrete cable-stayed bridge cannot meet the requirement for laying ballastless tracks on a high-speed railway and is safe in operation, and economical efficiency is reduced. Two ends of a stay cable are respectively anchored and connected with a bridge tower and a main beam, the main beam is connected with the bridge tower through a support at the bridge tower, and a pier is arranged below the main beam; the main span part of the girder adopts a steel box girder, the connecting parts of the two sides of the girder and the bridge tower adopt concrete box girders, and the steel box girder and the concrete box girders are in transition connection through a steel-concrete combined section. A steel-concrete partial cable-stayed bridge structure system is innovatively adopted, and the span of a railway partial cable-stayed bridge is pushed to be 300 m or above for the first time; the mid-span section adopts the steel box girder, so that the self weight of the structure is reduced, the girder height of the main girder is reduced, and the concrete shrinkage creep effect is reduced.
本发明公开了一种铁路钢‑混部分斜拉桥组合梁结构。现有混凝土斜拉桥跨度度超过300m时，不能适应高速铁路铺设无砟轨道的需求和运营安全，且经济性降低。本发明中斜拉索两端分别与桥塔和主梁锚固连接，主梁在桥塔处通过支座与桥塔连接，主梁下方设置桥墩；主梁主跨部分采用钢箱梁，主梁两侧与桥塔连接部分采用混凝土箱梁，钢箱梁与混凝土箱梁通过钢混结合段过渡连接。本发明创新性地采用钢‑混凝土部分斜拉桥结构体系，首次将铁路部分斜拉桥的跨度推向300m以上；中跨部分段落采用钢箱梁，结构自重减轻、主梁梁高降低、混凝土收缩徐变效应减小。
Railway steel-concrete partial cable-stayed bridge composite beam structure
The invention discloses a composite beam structure of a railway steel-concrete partial cable-stayed bridge. When the span of an existing concrete cable-stayed bridge exceeds 300 m, the existing concrete cable-stayed bridge cannot meet the requirement for laying ballastless tracks on a high-speed railway and is safe in operation, and economical efficiency is reduced. Two ends of a stay cable are respectively anchored and connected with a bridge tower and a main beam, the main beam is connected with the bridge tower through a support at the bridge tower, and a pier is arranged below the main beam; the main span part of the girder adopts a steel box girder, the connecting parts of the two sides of the girder and the bridge tower adopt concrete box girders, and the steel box girder and the concrete box girders are in transition connection through a steel-concrete combined section. A steel-concrete partial cable-stayed bridge structure system is innovatively adopted, and the span of a railway partial cable-stayed bridge is pushed to be 300 m or above for the first time; the mid-span section adopts the steel box girder, so that the self weight of the structure is reduced, the girder height of the main girder is reduced, and the concrete shrinkage creep effect is reduced.
本发明公开了一种铁路钢‑混部分斜拉桥组合梁结构。现有混凝土斜拉桥跨度度超过300m时，不能适应高速铁路铺设无砟轨道的需求和运营安全，且经济性降低。本发明中斜拉索两端分别与桥塔和主梁锚固连接，主梁在桥塔处通过支座与桥塔连接，主梁下方设置桥墩；主梁主跨部分采用钢箱梁，主梁两侧与桥塔连接部分采用混凝土箱梁，钢箱梁与混凝土箱梁通过钢混结合段过渡连接。本发明创新性地采用钢‑混凝土部分斜拉桥结构体系，首次将铁路部分斜拉桥的跨度推向300m以上；中跨部分段落采用钢箱梁，结构自重减轻、主梁梁高降低、混凝土收缩徐变效应减小。
Railway steel-concrete partial cable-stayed bridge composite beam structure
一种铁路钢-混部分斜拉桥组合梁结构
OUYANG HUILAI (Autor:in) / CHEN YINGTAO (Autor:in) / CHEN GANG (Autor:in) / YUN TINGGUI (Autor:in) / ZHANG DUOPING (Autor:in) / LUO CHANG (Autor:in) / LEI XIAOFENG (Autor:in) / LIU KAIYUAN (Autor:in) / WANG LIXIN (Autor:in) / CHEN YINDENG (Autor:in)
03.05.2022
Patent
Elektronische Ressource
Chinesisch
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