Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of large-span wide-width multi-tower partial cable-stayed bridge
The invention relates to the field of bridge construction, in particular to a large-span wide-width multi-tower partial cable-stayed bridge construction method which comprises the steps that a zero block solid model is established, and stress analysis is conducted on a large cantilever under the unbalance loading effect; stress analysis is carried out in the maximum cantilever state and the bridge forming state; establishing a main bridge construction stage space finite element model; performing forward iterative calculation on the tension force of the stay cable in the construction stage; verifying the accuracy of finite element model simulation; verifying correctness of calculation of stay cable construction cable force, steel girder manufacturing line shape and installation line shape; performing parameter sensitivity analysis; the cable tower and cable saddle area acting effect of the sliding effect of the branch wire pipe and anti-sliding and accurate positioning of the stay cable are conducted; optimizing the structure of the cable saddle area of the partial cable-stayed bridge cable tower; the anti-sliding capacity of the stay cable is judged; and obtaining the actual stress distribution condition at the key construction stage of the site, and comparing and analyzing the actual stress distribution condition with a finite element model data result. The stay cable has the advantages that the stay cable is resistant to sliding, and accurate positioning can be achieved in construction.
本申请涉及桥梁建设的领域，尤其是涉及一种大跨宽幅多塔部分斜拉桥建造方法，包括步骤建立零号块实体模型，对大悬臂在偏载作用下进行应力分析；对最大悬臂状态和成桥状态下进行应力分析；建立主桥施工阶段空间有限元模型；对施工阶段斜拉索张拉力进行正装迭代计算；验证有限元模型模拟的准确性；验证斜拉索施工索力、钢主梁制造线形及安装线形计算的正确性；进行参数敏感性分析；进行分丝管滑移效应的索塔索鞍区作用效应与斜拉索抗滑及精准定位；对部分斜拉桥索塔索鞍区结构优化；判断斜拉索抗滑移能力；获取现场关键施工阶段实际应力分布情况，并与有限元模型数据结果进行对比分析。本申请具有使斜拉索抗滑且施工中可以进行精准定位的效果。
Construction method of large-span wide-width multi-tower partial cable-stayed bridge
The invention relates to the field of bridge construction, in particular to a large-span wide-width multi-tower partial cable-stayed bridge construction method which comprises the steps that a zero block solid model is established, and stress analysis is conducted on a large cantilever under the unbalance loading effect; stress analysis is carried out in the maximum cantilever state and the bridge forming state; establishing a main bridge construction stage space finite element model; performing forward iterative calculation on the tension force of the stay cable in the construction stage; verifying the accuracy of finite element model simulation; verifying correctness of calculation of stay cable construction cable force, steel girder manufacturing line shape and installation line shape; performing parameter sensitivity analysis; the cable tower and cable saddle area acting effect of the sliding effect of the branch wire pipe and anti-sliding and accurate positioning of the stay cable are conducted; optimizing the structure of the cable saddle area of the partial cable-stayed bridge cable tower; the anti-sliding capacity of the stay cable is judged; and obtaining the actual stress distribution condition at the key construction stage of the site, and comparing and analyzing the actual stress distribution condition with a finite element model data result. The stay cable has the advantages that the stay cable is resistant to sliding, and accurate positioning can be achieved in construction.
本申请涉及桥梁建设的领域，尤其是涉及一种大跨宽幅多塔部分斜拉桥建造方法，包括步骤建立零号块实体模型，对大悬臂在偏载作用下进行应力分析；对最大悬臂状态和成桥状态下进行应力分析；建立主桥施工阶段空间有限元模型；对施工阶段斜拉索张拉力进行正装迭代计算；验证有限元模型模拟的准确性；验证斜拉索施工索力、钢主梁制造线形及安装线形计算的正确性；进行参数敏感性分析；进行分丝管滑移效应的索塔索鞍区作用效应与斜拉索抗滑及精准定位；对部分斜拉桥索塔索鞍区结构优化；判断斜拉索抗滑移能力；获取现场关键施工阶段实际应力分布情况，并与有限元模型数据结果进行对比分析。本申请具有使斜拉索抗滑且施工中可以进行精准定位的效果。
Construction method of large-span wide-width multi-tower partial cable-stayed bridge
一种大跨宽幅多塔部分斜拉桥建造方法
BAI XINGXIONG (Autor:in) / GUAN YONGCUN (Autor:in) / TAO BAOJIN (Autor:in) / JIANG LIGUO (Autor:in) / WANG BINGWEN (Autor:in) / YU XIAOHONG (Autor:in)
22.10.2024
Patent
Elektronische Ressource
Chinesisch
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