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A platform for research: civil engineering, architecture and urbanism
Method for erecting large-span cantilever steel beam
The invention relates to a method for erecting a large-span cantilever steel beam, and relates to the technical field of bridge construction. The cantilever steel beam comprises a steel truss continuous beam and a section steel beam connected with the steel truss continuous beam, the steel truss continuous beam determines a cantilever and the remaining part through two fulcrums below the steel truss continuous beam, and a fulcrum far away from the cantilever is defined as a first fulcrum. The method for erecting the section steel beam on the steel truss continuous beam comprises the steps: acquiring support counter-force, corresponding to the first fulcrum, of the cantilever steel beam and the remaining part in advance; and judging whether the cantilever steel beam meets the overall anti-overturning capacity or not according to the two support counterforces obtained in advance, if yes, erecting the section steel beam on the steel truss continuous beam, and if not, increasing the support counterforce of the remaining part at the first fulcrum before erecting the section steel beam. According to the method, the support counter-force is easy to obtain, calculation is easy, convenient and rapid, construction is easy and rapid, and safety and reliability are achieved.
本申请涉及一种大跨径悬臂钢梁的架设方法，涉及桥梁施工技术领域，所述悬臂钢梁包括所述钢桁连续梁和与所述钢桁连续梁相连的一个节段钢梁，所述钢桁连续梁通过其下的两个支点确定一个悬臂和余下部分，定义远离所述悬臂的支点为第一支点，架设所述节段钢梁于所述钢桁连续梁上的方法包括步骤：预先获取所述悬臂钢梁和所述余下部分在所述第一支点处对应的支座反力；根据预先获取的两个支座反力，判断所述悬臂钢梁是否满足整体抗倾覆能力，若是，则在所述钢桁连续梁上架设所述节段钢梁，否则，在架设所述节段钢梁之前，增大所述余下部分在所述第一支点处的支座反力。在本申请中，支座反力易于获取，且计算简便快速，施工简单快捷，安全可靠。
Method for erecting large-span cantilever steel beam
The invention relates to a method for erecting a large-span cantilever steel beam, and relates to the technical field of bridge construction. The cantilever steel beam comprises a steel truss continuous beam and a section steel beam connected with the steel truss continuous beam, the steel truss continuous beam determines a cantilever and the remaining part through two fulcrums below the steel truss continuous beam, and a fulcrum far away from the cantilever is defined as a first fulcrum. The method for erecting the section steel beam on the steel truss continuous beam comprises the steps: acquiring support counter-force, corresponding to the first fulcrum, of the cantilever steel beam and the remaining part in advance; and judging whether the cantilever steel beam meets the overall anti-overturning capacity or not according to the two support counterforces obtained in advance, if yes, erecting the section steel beam on the steel truss continuous beam, and if not, increasing the support counterforce of the remaining part at the first fulcrum before erecting the section steel beam. According to the method, the support counter-force is easy to obtain, calculation is easy, convenient and rapid, construction is easy and rapid, and safety and reliability are achieved.
本申请涉及一种大跨径悬臂钢梁的架设方法，涉及桥梁施工技术领域，所述悬臂钢梁包括所述钢桁连续梁和与所述钢桁连续梁相连的一个节段钢梁，所述钢桁连续梁通过其下的两个支点确定一个悬臂和余下部分，定义远离所述悬臂的支点为第一支点，架设所述节段钢梁于所述钢桁连续梁上的方法包括步骤：预先获取所述悬臂钢梁和所述余下部分在所述第一支点处对应的支座反力；根据预先获取的两个支座反力，判断所述悬臂钢梁是否满足整体抗倾覆能力，若是，则在所述钢桁连续梁上架设所述节段钢梁，否则，在架设所述节段钢梁之前，增大所述余下部分在所述第一支点处的支座反力。在本申请中，支座反力易于获取，且计算简便快速，施工简单快捷，安全可靠。
Method for erecting large-span cantilever steel beam
一种大跨径悬臂钢梁的架设方法
CHEN TAO (author) / LYU HONGKUI (author) / KE WEIFENG (author) / WANG CHAO (author) / WANG JI (author) / XUE QILIN (author) / DONG XIAOBING (author) / YUAN JIANXIN (author) / HE ZUFA (author)
2021-07-02
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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