Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for small prestressed cable-stayed bridge
The invention discloses a construction method for a small pre-stressed cable-stayed bridge. The construction method comprises the steps that firstly, pile foundations in the middle of the bridge and on the two sides of the bridge are constructed, and a bearing platform in the middle of the bridge and bridge abutments on the two sides of the bridge are constructed; 2, concrete lower tower columns and cross beams are constructed, and temporary supports and main beam full framing are symmetrically erected in the span of the bridge body; 3, hoisting and constructing an upper steel tower column and a tower top closure section, symmetrically pouring main beam concrete from the two sides of the bridge at the same time, and tensioning a main beam after the strength of the concrete meets the design requirement; step 4, sequentially installing and tensioning part stay cables from the middle part of the bridge to the two sides of the bridge; and fifthly, the rest stay cables are sequentially installed and tensioned in the direction from the middle of the bridge to the two sides of the bridge. The construction efficiency can be improved, the integrity and stability of the bridge are improved, and the safety risk of manual operation is reduced.
本发明公开了一种用于小型预应力斜拉桥的施工方法，包括：步骤一、施工桥中部、桥两侧桩基础，施工桥中部承台、桥两侧桥台；步骤二、施工混凝土下塔柱及横梁，在桥体跨径内对称搭设临时支撑及主梁满堂支架；步骤三、吊装施工钢上塔柱、塔顶合拢段，同时从桥两侧对称浇筑主梁混凝土，待混凝土强度达到设计要求后对主梁进行张拉；步骤四、由桥中部至两侧方向依次进行部斜拉索的安装、张拉；步骤五、由桥中部至两侧方向依次进行剩余斜拉索的安装、张拉。本发明能够提高施工效率，以及提高桥梁整体性及稳定性，减少人工作业安全风险。
Construction method for small prestressed cable-stayed bridge
The invention discloses a construction method for a small pre-stressed cable-stayed bridge. The construction method comprises the steps that firstly, pile foundations in the middle of the bridge and on the two sides of the bridge are constructed, and a bearing platform in the middle of the bridge and bridge abutments on the two sides of the bridge are constructed; 2, concrete lower tower columns and cross beams are constructed, and temporary supports and main beam full framing are symmetrically erected in the span of the bridge body; 3, hoisting and constructing an upper steel tower column and a tower top closure section, symmetrically pouring main beam concrete from the two sides of the bridge at the same time, and tensioning a main beam after the strength of the concrete meets the design requirement; step 4, sequentially installing and tensioning part stay cables from the middle part of the bridge to the two sides of the bridge; and fifthly, the rest stay cables are sequentially installed and tensioned in the direction from the middle of the bridge to the two sides of the bridge. The construction efficiency can be improved, the integrity and stability of the bridge are improved, and the safety risk of manual operation is reduced.
本发明公开了一种用于小型预应力斜拉桥的施工方法，包括：步骤一、施工桥中部、桥两侧桩基础，施工桥中部承台、桥两侧桥台；步骤二、施工混凝土下塔柱及横梁，在桥体跨径内对称搭设临时支撑及主梁满堂支架；步骤三、吊装施工钢上塔柱、塔顶合拢段，同时从桥两侧对称浇筑主梁混凝土，待混凝土强度达到设计要求后对主梁进行张拉；步骤四、由桥中部至两侧方向依次进行部斜拉索的安装、张拉；步骤五、由桥中部至两侧方向依次进行剩余斜拉索的安装、张拉。本发明能够提高施工效率，以及提高桥梁整体性及稳定性，减少人工作业安全风险。
Construction method for small prestressed cable-stayed bridge
一种用于小型预应力斜拉桥的施工方法
20.09.2024
Patent
Elektronische Ressource
Chinesisch
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