Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestressed seamless multi-span curved bridge construction structure and construction method
The invention relates to a prestressed seamless multi-span curved bridge construction structure and method, and belongs to the technical field of prestressed seamless curved bridges. The construction structure comprises a temporary supporting structure arranged between a main beam and a lower structure, and the temporary supporting structure comprises a groove channel, a rolling shaft, a rotating disc and a bottom steel plate; the rolling shaft is transversely placed in the groove channel and can slide along the groove channel, the diameter of the rolling shaft is larger than the groove height of the groove channel, and the length of the rolling shaft is smaller than the groove width of the groove channel; and the turntable is arranged below the groove channel. The rolling shaft with the rotating disc is adopted at the position of the seamless bent bridge abutment to serve as a temporary supporting structure, the rotating disc can rotate along with the change of the angle, the rolling shaft can roll along with the change of displacement, and therefore oblique displacement of a certain angle between a main beam and a lower structure is avoided when prestressed tendons are tensioned.
本发明涉及一种预应力无缝多跨弯桥施工结构及施工方法，属于预应力无缝弯桥技术领域，本发明的施工结构包括设置在主梁与下部结构之间的临时支撑结构，临时支撑结构包括凹槽道、滚轴、转盘和底部钢板；所述滚轴横向放置在凹槽道内，可沿着凹槽道滑动，且滚轴的直径大于凹槽道的槽高，滚轴的长度小于凹槽道的槽宽；所述转盘设置在凹槽道的下方。本发明在无缝弯桥桥台处采用带转盘的滚轴作为临时支撑结构，转盘可随角度的变化而转动，滚轴可随位移的变化而滚动，进而避免了张拉预应力筋时，主梁与下部结构间出现一定角度的斜向位移。
Prestressed seamless multi-span curved bridge construction structure and construction method
The invention relates to a prestressed seamless multi-span curved bridge construction structure and method, and belongs to the technical field of prestressed seamless curved bridges. The construction structure comprises a temporary supporting structure arranged between a main beam and a lower structure, and the temporary supporting structure comprises a groove channel, a rolling shaft, a rotating disc and a bottom steel plate; the rolling shaft is transversely placed in the groove channel and can slide along the groove channel, the diameter of the rolling shaft is larger than the groove height of the groove channel, and the length of the rolling shaft is smaller than the groove width of the groove channel; and the turntable is arranged below the groove channel. The rolling shaft with the rotating disc is adopted at the position of the seamless bent bridge abutment to serve as a temporary supporting structure, the rotating disc can rotate along with the change of the angle, the rolling shaft can roll along with the change of displacement, and therefore oblique displacement of a certain angle between a main beam and a lower structure is avoided when prestressed tendons are tensioned.
本发明涉及一种预应力无缝多跨弯桥施工结构及施工方法，属于预应力无缝弯桥技术领域，本发明的施工结构包括设置在主梁与下部结构之间的临时支撑结构，临时支撑结构包括凹槽道、滚轴、转盘和底部钢板；所述滚轴横向放置在凹槽道内，可沿着凹槽道滑动，且滚轴的直径大于凹槽道的槽高，滚轴的长度小于凹槽道的槽宽；所述转盘设置在凹槽道的下方。本发明在无缝弯桥桥台处采用带转盘的滚轴作为临时支撑结构，转盘可随角度的变化而转动，滚轴可随位移的变化而滚动，进而避免了张拉预应力筋时，主梁与下部结构间出现一定角度的斜向位移。
Prestressed seamless multi-span curved bridge construction structure and construction method
一种预应力无缝多跨弯桥施工结构及施工方法
ZHENG JUNTAO (Autor:in) / ZHAO SHIQI (Autor:in) / LU ZHUYANG (Autor:in) / NIU YANWEI (Autor:in) / ZOU DAILING (Autor:in) / LI PENGFEI (Autor:in) / YANG JIAN (Autor:in)
09.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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