Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Upper structure of hollow board beam bridge and construction method thereof
The invention discloses an upper structure of a hollow board beam bridge. Hinge joints are formed among a plurality of hollow boards constructing a hollow board beam; concrete is cast on the hinge joints and the cast-in-situ layer of a bridge floor; the two end parts of the hollow boards are solid bodies; transverse steel bars are arranged on the two side faces of the hollow boards; the hollow board solid bodies together with the hinge joints and the concrete on the cast-in-situ layer of the bridge floor construct end transverse beams; prestressed steel bars transversely penetrating through a prestressed pipeline are arranged in the end transverse beams; the end transverse beams are supported by two supports. The construction method comprises the following steps: prefabricating the hollow boards; mounting a temporary support and a permanent support; mounting the hollow boards; transversely inserting the prestressed steel bars into the prestressed pipeline; casting concrete on the hinge joints and the cast-in-situ layer of the bridge floor; removing the temporary support. By adopting the end transverse beams provided with the prestressed steel bars, the overall rigidity of the upper structure of the hollow board beam bridge is effectively enhanced, and the hollow boards are stressed in a balanced way; the single board stress phenomenon is reduced, the local stress of the hinge joints on at the beam ends is reduced, and damage is prevented; each support is stressed, so that the problem of disengagement of the supports is solved; construction becomes simple and convenient, and the support maintenance workload and maintenance cost are low.
Upper structure of hollow board beam bridge and construction method thereof
The invention discloses an upper structure of a hollow board beam bridge. Hinge joints are formed among a plurality of hollow boards constructing a hollow board beam; concrete is cast on the hinge joints and the cast-in-situ layer of a bridge floor; the two end parts of the hollow boards are solid bodies; transverse steel bars are arranged on the two side faces of the hollow boards; the hollow board solid bodies together with the hinge joints and the concrete on the cast-in-situ layer of the bridge floor construct end transverse beams; prestressed steel bars transversely penetrating through a prestressed pipeline are arranged in the end transverse beams; the end transverse beams are supported by two supports. The construction method comprises the following steps: prefabricating the hollow boards; mounting a temporary support and a permanent support; mounting the hollow boards; transversely inserting the prestressed steel bars into the prestressed pipeline; casting concrete on the hinge joints and the cast-in-situ layer of the bridge floor; removing the temporary support. By adopting the end transverse beams provided with the prestressed steel bars, the overall rigidity of the upper structure of the hollow board beam bridge is effectively enhanced, and the hollow boards are stressed in a balanced way; the single board stress phenomenon is reduced, the local stress of the hinge joints on at the beam ends is reduced, and damage is prevented; each support is stressed, so that the problem of disengagement of the supports is solved; construction becomes simple and convenient, and the support maintenance workload and maintenance cost are low.
Upper structure of hollow board beam bridge and construction method thereof
XUE XINGWEI (Autor:in) / BAO LONGSHENG (Autor:in) / SONG FUCHUN (Autor:in)
06.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
E01D
BRIDGES
,
Brücken
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