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Construction method for dismantling temporary support system of long-span and ultra-wide continuous steel box girder

A technology of temporary support and construction method, applied in the direction of bridge, bridge construction, bridge maintenance, etc., can solve the problems of high hydraulic station cost of jack equipment, deformation of bridge lifting process, complex bridge structure, etc., to achieve good safety and reliability, unloading The effect of slow process and high flexibility

Active Publication Date: 2022-05-03
POWERCHINA MUNICIPAL CONSTR GRP CO LTD
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Problems solved by technology

However, due to the complex structure of the bridge, it is correspondingly complicated to use the number and position of the jack to carry out the force analysis. A slight error will cause the deformation of the bridge during the jacking process, and the cost of the jack equipment and the matching hydraulic station is relatively high. Only special operating equipment can complete the synchronous operation, and the operation is relatively complicated. This requires a new construction method for the removal of the temporary support system of the long-span and ultra-wide continuous steel box girder to solve this problem, which is flexible, applicable, economical, safe and reliable. , with certain economic and social benefits

Method used

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  • Construction method for dismantling temporary support system of long-span and ultra-wide continuous steel box girder
  • Construction method for dismantling temporary support system of long-span and ultra-wide continuous steel box girder
  • Construction method for dismantling temporary support system of long-span and ultra-wide continuous steel box girder

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Embodiment Construction

[0037] It should be noted that, without conflict, embodiments of the present invention and features in the embodiments may be combined with each other.

[0038]In the description of the present invention, it is emphasized that the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and other indications of the orientation or position relationship is based on the orientation or position relationship shown in the drawings, only to facilitate the description of the present invention and simplify the description, and not to indicate or imply that the referred device or element must have a specific orientation, structured and operated in a particular orientation, It can therefore not be construed as a limitation of the present invention. Further, the terms "first", "second", etc. are for descriptive purposes only and cannot be construed as indicating or implying relative importance...

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Abstract

The invention provides a construction method for dismantling a temporary support system of a large-span and ultra-wide continuous steel box girder, which belongs to the technical field of bridge engineering. , in each segment along the beam top longitudinal bridge to the roof incision, 2 points are selected as the control points offset by 500mm before and after the mileage, and the transverse bridge is along the beam top with 7 horizontal butt joints and two edges in total of 9 points as control points. The invention has clear structure, ingenious design, strong flexibility and applicability, and good safety and reliability.

Description

Technical field [0001] The present invention belongs to the field of bridge engineering technology, relates to a large-span ultra-wide continuous steel box girder temporary support system demolition construction method. Background [0002] Usually, the demolition of the temporary support system of the bridge is to first use the jack for the conversion of the support system, then remove the temporary support, and then let the jack be unloaded synchronously to complete the disassembly of the falling beam. Due to the complex structure of the bridge, the number and position of the jack when the jack is lifted are correspondingly complex when the force analysis is carried out, and a slight error leads to the deformation of the bridge jacking process, and the jack equipment and the hydraulic station with the combination of the cost is relatively high, the need to use special operating equipment to complete the synchronous operation, the operation is relatively complex, which requires ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D24/00E01D2/04E01D101/30
CPCE01D22/00E01D2/04E01D2101/30
Inventor 鞠子强辛玉宽陈希刚武智杰杨祖帅马振坤张超屠荣越张淑枝
Owner POWERCHINA MUNICIPAL CONSTR GRP CO LTD
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