Bailey beam dismantling construction method in bridge engineering
A bridge engineering and construction method technology, applied in bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of long demolition operation time, affecting the construction period, and high safety hazard factors, so as to achieve safe and reliable project quality, reduce high-altitude workers, The effect of saving construction cost
Inactive Publication Date: 2020-04-17
MCC5 GROUP CORP SHANGHAI
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Problems solved by technology
[0003] (1) The beam body of the Bailey beam needs to be dismantled and dismantled;
[0004] (2) High-altitude workers have high labor intensity and high potential safety hazards;
[0005] (3) The demolition operation takes a long time, which affects the construction period
[0006] Therefore there are above-mentioned inconveniences and problems in the Bailey beam demolition mode in the known bridge engineering
Method used
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Embodiment 1
[0031] Bailey beam removal construction method in the bridge engineering of the present invention comprises the following steps:
[0032] a. In the bridge project, the pouring of the bridge slab structure is completed, and the demolition of the Bailey beam begins after the supporting scaffolding dismantling permit is met.
[0033] b. Start the support lowering device at both ends of Bailey beam 1, so that the Bailey beam as a whole is lowered to a distance of about 200mm from the bottom surface of the bridge.
[0034] c. Two Bailey beam ends form a group and penetrate 15# channel steel 3 in series, and use hydraulic jack 6 in the middle of the two beams to make the Bailey beam end top up to about 50mm from the supporting surface of I-beam 4 below , the I-beam is supported by the lower column 5, and then the ends of the remaining Bailey beams are lifted up in turn by the same method; please refer to figure 1 , figure 1 It is a schematic diagram of grouping of Bailey beams and...
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The invention discloses a bailey beam dismantling construction method in bridge engineering. The method is characterized by comprising the following steps: a, after completion of pouring of a bridge plate concrete structure in bridge engineering, starting to dismount bailey beams under the condition of conforming to support scaffold dismounting permission; b, starting supporting descending devicesat the two ends of the bailey beam; c, dividing a plurality of bailey beams into groups, each of which includes two bailey beams, enabling a channel beam to pass through the two bailey beams in one group for series connection; d, after jacking up of the bailey beams, providing a plurality of pieces of round steel and laying the round steel on I-shaped steel in parallel; e, installing a winching machine at the end of each I-shaped steel row at the two ends of the bailey beams respectively to hoist a crane above a bridge plate conveniently so as to transport the bailey beams, thereby completingbailey beam dismounting rapidly. According to the invention, the bailey beam dismantling construction method in the bridge engineering has the advantages that bailey beam single beams can integrallymove, hoisting dismantling is achieved, quick dismantling is achieved, the engineering quality is safe and reliable, the high-altitude operation personnel are reduced, potential safety hazards are reduced, the construction period is shortened, and the construction cost is indirectly saved.
Description
technical field [0001] The invention relates to a Bailey beam, in particular to a construction method for removing the Bailey beam in bridge engineering. Background technique [0002] Today, with the rapid development of bridge engineering, Bailey beam technology has become an indispensable part of bridge engineering construction. However, there are still the following disadvantages in terms of the removal speed of the Bailey beam and the improvement of the turnover and use efficiency of the Bailey beam body: [0003] (1) The beam body of Bailey beam needs to be dismantled and dismantled; [0004] (2) High-altitude workers have high labor intensity and high potential safety hazards; [0005] (3) The demolition operation takes a long time, which affects the construction period. [0006] Therefore there are above-mentioned inconveniences and problems in the Bailey beam demolition mode in the known bridge engineering. Contents of the invention [0007] The purpose of the ...
Claims
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IPC IPC(8): E01D24/00
CPCE01D22/00
Inventor 孙俊波
Owner MCC5 GROUP CORP SHANGHAI