Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge full framing pre-pressing method and large-span bridge upper prestressed concrete box girder cast-in-place construction method
The invention discloses a bridge full framing pre-pressing method and a large-span bridge upper prestressed concrete box girder cast-in-place construction method, and the method comprises the steps: calculating a theoretical pre-pressing load value, and deducing the actual load pressure applied by an observation point on a side template in the vertical stress direction according to the inclination angle of the plane where the observation point is located relative to the horizontal plane; the pre-pressing pressure of the hydraulic jack is adjusted according to the actual load pressure value, so that the pre-pressing pressure applied to the full framing by the hydraulic jack better fits the actual load pressure of the observation point, and the actual bearing capacity of the framing is more visually reflected.
本发明公开了一种桥梁满堂支架预压方法与大跨度桥梁上部预应力混凝土箱梁现浇施工方法，本发明中计算出理论的预压荷载值，根据观测点所在面相对水平面的倾斜角度，推导出侧模板上观测点垂直受力方向施加的实际荷载压力，根据实际荷载压力值调节液压千斤顶的预压压力，使液压千斤顶施加作用于满堂支架的预压压力更贴合观测点实际荷载压力，更直观反映支架的真实承载能力。
Bridge full framing pre-pressing method and large-span bridge upper prestressed concrete box girder cast-in-place construction method
The invention discloses a bridge full framing pre-pressing method and a large-span bridge upper prestressed concrete box girder cast-in-place construction method, and the method comprises the steps: calculating a theoretical pre-pressing load value, and deducing the actual load pressure applied by an observation point on a side template in the vertical stress direction according to the inclination angle of the plane where the observation point is located relative to the horizontal plane; the pre-pressing pressure of the hydraulic jack is adjusted according to the actual load pressure value, so that the pre-pressing pressure applied to the full framing by the hydraulic jack better fits the actual load pressure of the observation point, and the actual bearing capacity of the framing is more visually reflected.
本发明公开了一种桥梁满堂支架预压方法与大跨度桥梁上部预应力混凝土箱梁现浇施工方法，本发明中计算出理论的预压荷载值，根据观测点所在面相对水平面的倾斜角度，推导出侧模板上观测点垂直受力方向施加的实际荷载压力，根据实际荷载压力值调节液压千斤顶的预压压力，使液压千斤顶施加作用于满堂支架的预压压力更贴合观测点实际荷载压力，更直观反映支架的真实承载能力。
Bridge full framing pre-pressing method and large-span bridge upper prestressed concrete box girder cast-in-place construction method
桥梁满堂支架预压方法与大跨度桥梁上部预应力混凝土箱梁现浇施工方法
SHEN YUTAO (Autor:in) / FANG KAI (Autor:in) / MENG CHAO (Autor:in) / DU WENHAO (Autor:in) / JI JIAQING (Autor:in)
25.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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