Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
All-welded steel truss aqueduct erecting method
The invention provides an all-welded steel truss aqueduct erecting method. The method comprises the steps that steel truss sections are symmetrically erected from the two ends to the middle of a mainspan through a crawler crane; main piers and foundations are constructed while erecting the side span aqueduct, and mid-span temporary buttresses are erected; after the aqueduct is adjusted in place,the main piers, the side piers, the temporary buttresses close to the closure section and the steel beams are tightened; and the crawler crane enters an aqueduct hoisting steel truss closure section,the aqueduct plane position is rechecked, then an aqueduct accessory structure is constructed, temporary buttresses are removed, a foundation pit is excavated or backfilled to a planned riverbed surface, and construction is completed. According to the construction method provided by the invention, the steel truss is erected from the two ends to the midspan, main piers and foundations can be synchronously constructed in the erecting period of the side span aqueduct, and the two aqueducts can share two crawler cranes, so that the number of cranes is reduced, and the construction cost is reduced;temporary buttresses are arranged near the connecting positions of the steel truss sections, each section is ensured to be provided with two supporting points, and the positions of the sections can be rapidly and accurately adjusted.
本发明创造提供了一种全焊钢桁梁渡槽架设方法，先利用履带吊从两端向主跨跨中对称架设钢桁梁节段；在边跨渡槽架设的同时，进行主墩及基础的施工，并搭设中跨临时支墩；当渡槽调整到位后，在主墩、边墩、临近合拢段的临时支墩与钢梁抄紧；履带吊进入渡槽吊装钢桁梁合拢段，复核渡槽平面位置，之后施工渡槽附属结构，拆除临时支墩，基坑开挖或回填至规划河床面，完成施工。本发明创造提供的施工方法中，钢桁梁从两端向跨中架设，边跨渡槽架设期间可同步施工主墩及基础，且，两幅渡槽可共用两台履带吊，减少了吊机数量，降低了施工成本；在钢桁梁节段连接位置附近均设置临时支墩，保证每节段设有两个支点，可快速、精确调整节段位置。
All-welded steel truss aqueduct erecting method
The invention provides an all-welded steel truss aqueduct erecting method. The method comprises the steps that steel truss sections are symmetrically erected from the two ends to the middle of a mainspan through a crawler crane; main piers and foundations are constructed while erecting the side span aqueduct, and mid-span temporary buttresses are erected; after the aqueduct is adjusted in place,the main piers, the side piers, the temporary buttresses close to the closure section and the steel beams are tightened; and the crawler crane enters an aqueduct hoisting steel truss closure section,the aqueduct plane position is rechecked, then an aqueduct accessory structure is constructed, temporary buttresses are removed, a foundation pit is excavated or backfilled to a planned riverbed surface, and construction is completed. According to the construction method provided by the invention, the steel truss is erected from the two ends to the midspan, main piers and foundations can be synchronously constructed in the erecting period of the side span aqueduct, and the two aqueducts can share two crawler cranes, so that the number of cranes is reduced, and the construction cost is reduced;temporary buttresses are arranged near the connecting positions of the steel truss sections, each section is ensured to be provided with two supporting points, and the positions of the sections can be rapidly and accurately adjusted.
本发明创造提供了一种全焊钢桁梁渡槽架设方法，先利用履带吊从两端向主跨跨中对称架设钢桁梁节段；在边跨渡槽架设的同时，进行主墩及基础的施工，并搭设中跨临时支墩；当渡槽调整到位后，在主墩、边墩、临近合拢段的临时支墩与钢梁抄紧；履带吊进入渡槽吊装钢桁梁合拢段，复核渡槽平面位置，之后施工渡槽附属结构，拆除临时支墩，基坑开挖或回填至规划河床面，完成施工。本发明创造提供的施工方法中，钢桁梁从两端向跨中架设，边跨渡槽架设期间可同步施工主墩及基础，且，两幅渡槽可共用两台履带吊，减少了吊机数量，降低了施工成本；在钢桁梁节段连接位置附近均设置临时支墩，保证每节段设有两个支点，可快速、精确调整节段位置。
All-welded steel truss aqueduct erecting method
一种全焊钢桁梁渡槽架设方法
SONG WEIJUN (Autor:in) / LIU CHANGHUI (Autor:in) / GONG GUOFENG (Autor:in) / CHEN NINGXIAN (Autor:in) / QU JIANGFENG (Autor:in) / DONG FUQI (Autor:in) / FU JIANSHENG (Autor:in) / HUO YANLEI (Autor:in) / WANG XUDONG (Autor:in) / CAI WENTAO (Autor:in)
01.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
Steel truss aqueduct erecting device and method for small-section asymmetric beam arch system
| Europäisches Patentamt | 2023