Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cantilever assembling construction method of tower beam consolidation system cable-stayed bridge
According to the cantilever assembling construction method of the tower beam consolidation system cable-stayed bridge, the construction steps are simplified, the difficulty of construction operation is reduced, and the tensioning result is closer to the expected state. According to the method provided by the embodiment of the invention, the finite element model of the cable-stayed bridge is established, the cable force target value of each stay cable is solved on the basis of the finite element model, the stay cables are assembled by adopting a cantilever assembling method, and the stay cablesare directly adjusted to the solved cable force target values when being tensioned in the assembling process; and the expected state after the bridge is formed can be achieved without paying attention to the influence of the tension of the stay cable on the cable force of other stay cables and the deflection of each end point and without repeated tension, so that the construction steps are simplified, and the difficulty of construction operation is reduced. The solved cable force target value is closer to the bridge line shape and the cable force expected value, so that the tensioning resultis more accurate and conforms to the expected state.
本发明实施例提供一种塔梁固结体系斜拉桥的悬臂拼装施工方法，简化了施工步骤，降低了施工作业的难度，张拉结果更加接近期望状态。本发明实施例方法，通过建立斜拉桥的有限元模型，在有限元模型基础上，求解得到每个斜拉索的索力目标值，并采用悬臂拼装法进行拼装，拼装过程中张拉斜拉索时直接调节至求得的索力目标值，不用关注该斜拉索张拉对其他斜拉索的索力以及各端点挠度的影响，无需反复多次张拉即可达到成桥后期望状态，简化了施工步骤，降低了施工作业的难度。求解的索力目标值更接近桥梁线形和索力期望值，使得张拉结果更加准确，符合期望状态。
Cantilever assembling construction method of tower beam consolidation system cable-stayed bridge
According to the cantilever assembling construction method of the tower beam consolidation system cable-stayed bridge, the construction steps are simplified, the difficulty of construction operation is reduced, and the tensioning result is closer to the expected state. According to the method provided by the embodiment of the invention, the finite element model of the cable-stayed bridge is established, the cable force target value of each stay cable is solved on the basis of the finite element model, the stay cables are assembled by adopting a cantilever assembling method, and the stay cablesare directly adjusted to the solved cable force target values when being tensioned in the assembling process; and the expected state after the bridge is formed can be achieved without paying attention to the influence of the tension of the stay cable on the cable force of other stay cables and the deflection of each end point and without repeated tension, so that the construction steps are simplified, and the difficulty of construction operation is reduced. The solved cable force target value is closer to the bridge line shape and the cable force expected value, so that the tensioning resultis more accurate and conforms to the expected state.
本发明实施例提供一种塔梁固结体系斜拉桥的悬臂拼装施工方法，简化了施工步骤，降低了施工作业的难度，张拉结果更加接近期望状态。本发明实施例方法，通过建立斜拉桥的有限元模型，在有限元模型基础上，求解得到每个斜拉索的索力目标值，并采用悬臂拼装法进行拼装，拼装过程中张拉斜拉索时直接调节至求得的索力目标值，不用关注该斜拉索张拉对其他斜拉索的索力以及各端点挠度的影响，无需反复多次张拉即可达到成桥后期望状态，简化了施工步骤，降低了施工作业的难度。求解的索力目标值更接近桥梁线形和索力期望值，使得张拉结果更加准确，符合期望状态。
Cantilever assembling construction method of tower beam consolidation system cable-stayed bridge
一种塔梁固结体系斜拉桥的悬臂拼装施工方法
WANG GAOXIN (Autor:in) / SHAO JINGSHU (Autor:in) / DONG ZHAOXING (Autor:in) / YE JIHONG (Autor:in) / WANG DAGANG (Autor:in) / ZHOU XIN (Autor:in)
12.01.2021
Patent
Elektronische Ressource
Chinesisch
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