A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Non-dismantling UHPC formwork prestressed concrete bridge and construction method thereof
The invention discloses a dismantling-free UHPC formwork prestressed concrete bridge and a construction method thereof.The bridge comprises a bridge body, the bottom face of a top plate of the bridge body, the bottom face of a bottom plate of the bridge body, the bottom face of a flange plate and the side face of a web plate of the bridge body are all connected with UHPC layers, and the construction method comprises the following steps that factory prefabrication, maintenance and storage of UHPC formworks are conducted; transporting, hoisting and splicing the bottom plate and the web UHPC template; hoisting connection of a bottom plate and a web reinforcing mesh and pre-arrangement of a prestressed duct; pouring and curing a bottom plate and web concrete layer; a top plate UHPC formwork is transported, hoisted and spliced; hoisting and connecting the top plate reinforcing mesh; pouring and curing a top plate concrete layer; tensioning and anchoring prestressed tendons of the bridge sections; and constructing the next section. According to the bridge and the construction method, the self weight of the bridge is reduced, the crack resistance, impact resistance, fatigue resistance and durability of the bridge are improved, and the whole life cycle cost of engineering is reduced.
本发明公开了一种免拆UHPC模板预应力混凝土桥梁及其施工方法，该桥梁包括桥梁主体，桥梁主体顶板的底面、底板的底面、翼缘板的底面以及腹板的侧面均连接有UHPC层，该施工方法，包括如下步骤：UHPC模板的工厂预制、养护及存放；底板及腹板UHPC模板的运输吊装及拼接；底板及腹板钢筋网片的吊装连接及预应力孔道预设；底板及腹板混凝土层浇筑和养护；顶板UHPC模板的运输吊装及拼接；顶板钢筋网片的吊装连接；顶板混凝土层浇筑和养护；桥梁节段预应力筋的张拉和锚固；下一节段施工。本申请的桥梁及施工方法，降低了桥梁自重，提高了桥梁的抗裂、抗冲击、抗疲劳性能和耐久性，降低了工程的全寿命周期成本。
Non-dismantling UHPC formwork prestressed concrete bridge and construction method thereof
The invention discloses a dismantling-free UHPC formwork prestressed concrete bridge and a construction method thereof.The bridge comprises a bridge body, the bottom face of a top plate of the bridge body, the bottom face of a bottom plate of the bridge body, the bottom face of a flange plate and the side face of a web plate of the bridge body are all connected with UHPC layers, and the construction method comprises the following steps that factory prefabrication, maintenance and storage of UHPC formworks are conducted; transporting, hoisting and splicing the bottom plate and the web UHPC template; hoisting connection of a bottom plate and a web reinforcing mesh and pre-arrangement of a prestressed duct; pouring and curing a bottom plate and web concrete layer; a top plate UHPC formwork is transported, hoisted and spliced; hoisting and connecting the top plate reinforcing mesh; pouring and curing a top plate concrete layer; tensioning and anchoring prestressed tendons of the bridge sections; and constructing the next section. According to the bridge and the construction method, the self weight of the bridge is reduced, the crack resistance, impact resistance, fatigue resistance and durability of the bridge are improved, and the whole life cycle cost of engineering is reduced.
本发明公开了一种免拆UHPC模板预应力混凝土桥梁及其施工方法，该桥梁包括桥梁主体，桥梁主体顶板的底面、底板的底面、翼缘板的底面以及腹板的侧面均连接有UHPC层，该施工方法，包括如下步骤：UHPC模板的工厂预制、养护及存放；底板及腹板UHPC模板的运输吊装及拼接；底板及腹板钢筋网片的吊装连接及预应力孔道预设；底板及腹板混凝土层浇筑和养护；顶板UHPC模板的运输吊装及拼接；顶板钢筋网片的吊装连接；顶板混凝土层浇筑和养护；桥梁节段预应力筋的张拉和锚固；下一节段施工。本申请的桥梁及施工方法，降低了桥梁自重，提高了桥梁的抗裂、抗冲击、抗疲劳性能和耐久性，降低了工程的全寿命周期成本。
Non-dismantling UHPC formwork prestressed concrete bridge and construction method thereof
一种免拆UHPC模板预应力混凝土桥梁及其施工方法
LIU XIAOCHUN (author) / WANG WEIFENG (author) / TANG ZHIYONG (author) / DANG RUJIAO (author) / CUI ZHONGDONG (author)
2023-11-17
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2022
| European Patent Office | 2021
ECC non-dismantling formwork, concrete beam based on formwork and construction method thereof
| European Patent Office | 2020
Dismantling construction method for large-span prestressed concrete cable-stayed bridge
| European Patent Office | 2022