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A platform for research: civil engineering, architecture and urbanism
Composite RCC bridge floor and prestress parabola-shaped bottom chord lower suspension type open-web steel beam bridge superstructure
The composite bridge deck improves the strength and rigidity of the bridge. And the prestressed composite open-web steel beam increases the advantage of high-strength cable support. The results of a typical 125 m span bridge with a height of 9.0 m, 10.0 m and 12.5 m and another 50.0 m span and 2.5 m height are given. And the safety of component stress and bridge deflection in the erection process is ensured. The average steel unloading amount of a 125m bridge is 2.65 t/m, the average steel unloading amount of a 50m-span bridge is 1.77 t/m, and the method is used for limiting live load deflection of span/800. And the storage strength is 3.2 times of the live load under the use condition. The beam is manufactured in a plate-type workshop, assembled on site, lifted by a jack or hoisted by a crane, and fixed on a support. And transverse members are connected, and all members of the bridge floor are cast on site through staged bottom chord member prestress. Single-lane or multi-lane short-span bridges to long-span bridges for highway, railway, subway and coast bridge-connecting projects are all feasible.
复合桥面提高了桥梁的强度和刚度。预应力复合空腹钢梁增加了高强度缆支撑的优点。给出了一种典型的具有9.0m、10.0m和12.5m的高度的125m跨度的桥梁以及另一种50.0m跨度和2.5m高度的桥梁的结果。在架设过程中构件应力和桥梁挠度保证安全。125m桥梁的平均钢卸载量为2.65t/m，50m跨度的桥梁的平均钢卸载量为1.77t/m，用于限制跨度/800的活载荷挠度。其储备强度是使用条件下活载荷的3.2倍。梁采用板式车间制造、现场组装、用千斤顶提升或用起重机吊装，以固定在支座上。进行横向构件的连接，并以分阶段底弦杆预应力在现场浇筑桥面各构件。公路、铁路、地铁、以及海岸连桥项目的单车道或多车道的短跨度桥梁到长跨度桥梁均是可行的。
Composite RCC bridge floor and prestress parabola-shaped bottom chord lower suspension type open-web steel beam bridge superstructure
The composite bridge deck improves the strength and rigidity of the bridge. And the prestressed composite open-web steel beam increases the advantage of high-strength cable support. The results of a typical 125 m span bridge with a height of 9.0 m, 10.0 m and 12.5 m and another 50.0 m span and 2.5 m height are given. And the safety of component stress and bridge deflection in the erection process is ensured. The average steel unloading amount of a 125m bridge is 2.65 t/m, the average steel unloading amount of a 50m-span bridge is 1.77 t/m, and the method is used for limiting live load deflection of span/800. And the storage strength is 3.2 times of the live load under the use condition. The beam is manufactured in a plate-type workshop, assembled on site, lifted by a jack or hoisted by a crane, and fixed on a support. And transverse members are connected, and all members of the bridge floor are cast on site through staged bottom chord member prestress. Single-lane or multi-lane short-span bridges to long-span bridges for highway, railway, subway and coast bridge-connecting projects are all feasible.
复合桥面提高了桥梁的强度和刚度。预应力复合空腹钢梁增加了高强度缆支撑的优点。给出了一种典型的具有9.0m、10.0m和12.5m的高度的125m跨度的桥梁以及另一种50.0m跨度和2.5m高度的桥梁的结果。在架设过程中构件应力和桥梁挠度保证安全。125m桥梁的平均钢卸载量为2.65t/m，50m跨度的桥梁的平均钢卸载量为1.77t/m，用于限制跨度/800的活载荷挠度。其储备强度是使用条件下活载荷的3.2倍。梁采用板式车间制造、现场组装、用千斤顶提升或用起重机吊装，以固定在支座上。进行横向构件的连接，并以分阶段底弦杆预应力在现场浇筑桥面各构件。公路、铁路、地铁、以及海岸连桥项目的单车道或多车道的短跨度桥梁到长跨度桥梁均是可行的。
Composite RCC bridge floor and prestress parabola-shaped bottom chord lower suspension type open-web steel beam bridge superstructure
复合RCC桥面和预应力抛物线形底弦杆下悬式空腹钢梁桥梁上部结构
SINGH PRAMOD KUMAR (author)
2023-09-22
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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