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Construction method of reinforced concrete frame bridge with jacking and underpassing overhead line with beams and beams

A technology of reinforced concrete and construction method, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problem that the position of horizontal lift beams or D-type beams is difficult to adjust, the bolts are troublesome, and the weight of D-type beams is heavy, etc. problems, to achieve the effect of convenient jacking operation, firm positioning and reduced friction

Active Publication Date: 2022-03-18
中铁一局集团(广州)建设工程有限公司 +1
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  • Application Information

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Problems solved by technology

[0004] But in the above-mentioned construction process, the inventor thinks that because the length of the D-shaped beam is generally set longer, and the weight of the D-shaped beam is relatively large, when the D-shaped beam is pressed on the cross-lifting beam, the cross-lifting beam and the D-type When the holes of the connecting bolts on the convenience beam do not correspond, it is difficult to adjust the position of the horizontal lifting beam or the D-shaped convenience beam, which makes it more troublesome to pass the bolts between the horizontal lifting beam and the D-shaped convenience beam

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  • Construction method of reinforced concrete frame bridge with jacking and underpassing overhead line with beams and beams
  • Construction method of reinforced concrete frame bridge with jacking and underpassing overhead line with beams and beams
  • Construction method of reinforced concrete frame bridge with jacking and underpassing overhead line with beams and beams

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Embodiment Construction

[0039] The following is attached Figure 1-7The application is described in further detail.

[0040] The embodiment of the present application discloses a construction method of a reinforced concrete frame bridge of a jacking-in and under-passing type reinforced concrete frame bridge for an overhead line with a beam lifting beam. refer to figure 1 , including making vertical buttresses 1, laying horizontal lifting beams 2, connecting beams 3, excavating ducts 4, making frame 5 and jacking frame 5.

[0041] refer to figure 1 , to make the vertical pier 1, choose a suitable position and be located on both sides of the existing line, the existing line is the rail, there are at least two sets of vertical pier 1, and one set of vertical pier 1 is in the same section of the existing line Two vertical buttresses 1 at the position, first excavate pile pits on both sides of the existing line. The pile pits are cylindrical and can be drilled with a drilling machine. Concrete is pour...

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Abstract

The present application relates to a construction method of a reinforced concrete frame bridge with an overhead line jacked in by a convenient beam lifting method. First, place an installation vehicle on the existing line. The installation vehicle includes a vehicle body, a support wheel and a lifting arm. The vehicle body is provided with a lifting device for adjusting the height of the lifting arm, and the vehicle body is rollingly connected to the existing line through the support wheel. The two ends of the lifting arm are respectively slidingly connected with a slider, the lower part of the slider is provided with a hook for hoisting the utility beam, the lifting arm is provided with a translation device for driving the sliding on the lifting arm, and the utility beam passes through the hook After lifting, move the horizontal lift beam to the position corresponding to the connection between the horizontal lift beam and the toilet beam, first connect the horizontal lift beam and the toilet beam, and then lower the toilet beam through the lifting device, and then connect it between the horizontal lift beam and the toilet beam. Tighten the bolts and nuts between them. The present application has the effect of facilitating the connection between the convenience beam and the horizontal lift beam.

Description

technical field [0001] The present application relates to the technical field of frame bridge construction, in particular to a construction method of a reinforced concrete frame bridge of a jacking-in-bottom-passing overhead line with beam-lifting beams. Background technique [0002] The frame bridge is constructed by jacking. Before the jacking construction, the existing lines, such as railways, need to be elevated, so that the road construction under the existing lines can be completed without interrupting the normal operation of the existing lines. Therefore, it is widely used in the underpass of existing lines. [0003] The patent document with the authorized announcement number CN203487475U discloses a line overhead reinforcement structure for the construction of existing line jacking bridges and culverts. The support pier, the longitudinal and horizontal beam reinforcement frame includes multiple horizontal beams arranged from left to right and multiple longitudinal r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D21/06
CPCE01D21/00E01D21/06
Inventor 欧琼徐成双何修义童建勇韦刚郭胜涛
Owner 中铁一局集团(广州)建设工程有限公司
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