CN102409623A - Floating bridge removing method - Google Patents

Floating bridge removing method Download PDF

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Publication number
CN102409623A
CN102409623A CN2011102606169A CN201110260616A CN102409623A CN 102409623 A CN102409623 A CN 102409623A CN 2011102606169 A CN2011102606169 A CN 2011102606169A CN 201110260616 A CN201110260616 A CN 201110260616A CN 102409623 A CN102409623 A CN 102409623A
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CN
China
Prior art keywords
barge
bridge
concrete
open
steel
Prior art date
Application number
CN2011102606169A
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Chinese (zh)
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CN102409623B (en
Inventor
马科
Original Assignee
山东中宏路桥建设有限公司
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Priority to CN 201110260616 priority Critical patent/CN102409623B/en
Publication of CN102409623A publication Critical patent/CN102409623A/en
Application granted granted Critical
Publication of CN102409623B publication Critical patent/CN102409623B/en

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Abstract

The invention discloses a floating bridge removing method, which comprises the following steps of: 1, removing an old bridge surface; 2, preparing removal construction of a concrete truss of an old bridge; and 3, removing the concrete truss of the old bridge, namely making the bridge overhead through two barges for the first time, fixing a barge on the east side on a river bank on the east side so as to transversely move the old bridge to the upper part of a reinforced concrete foundation on the west side, filling water in a barge on the west side and sinking the barge. After the first movement is finished, the west end of the concrete truss is rolled through a steel roller on the concrete foundation and the east end of the concrete truss is supported by a barge bracket so as to move by hauling the barge until the barge is moved to the river bank, the barge sinks, the concrete truss is pulled to the river bank through a winch, and a crane assists in moving the bridge on the river bank. The method can be used for removing the old bridge, and because the concrete truss is removed by a barge and track combined monolithic translation method, the construction speed is high, navigation closure time is short, and influence of old bridge removal construction on normal operation of a navigation channel is reduced.

Description

Transportation by driving is torn the bridge method open
Technical field
The present invention relates to tear open bridge method.
Background technology
Tradition tears that the method speed of application of bridge is slow open, and the iceound time is long, and is bigger to the normal influence on system operation in navigation channel.The patent No. is that 200720070714.5 Chinese utility model provides a kind of bridge crane gear of tearing open, comprises, at least two Bailey truss carrier bars, each root Bailey truss carrier bar comprise many row's Bailey truss; Bailey truss comprises the Bailey truss unit that multi-disc connects from beginning to end, arranges between the Bailey truss to connect sleeper through bracing frame more; Be placed on the upside of each Bailey truss carrier bar, many tracks are laid on the sleeper respectively abreast; Many dollies are settled in orbit respectively, can go in orbit; The hoist engine brace summer is placed on the dolly, and can move with dolly; And hoist engine, be arranged on the hoist engine brace summer, be used to hang and move the bridge section of having cut.Adopt this equipment to carry out bridge and remove, can only carry out segmentation to bridge and remove, the engineering time is long.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of transportation by driving and tears the bridge method open, and fast, the iceound time of speed of application is short, reduces the influence of removal of old bridge construction to the normal operation in navigation channel.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: transportation by driving is torn the bridge method open, it is characterized in that comprising the steps:
Phase I: the old bridge bridge floor is removed the construction stage, tears railing earlier open, cuts the bridge floor shop again, and span concrete beam plate in tearing open is then torn the end bay beam slab at last open;
Second stage: old bridge concrete truss is removed the preparation of construction stage, the excavation and concrete truss longitudinal direction construction twice reinforced concrete base, basic end face pre-embedded steel slab are arranged along old bridge in the old bridge west side; Steel plate is dragging track usefulness when traversing as old bridge, and simultaneously, two barges are in place; Connect with wire rope between two barges; The freight house left and right sides of barge is set up in parallel two row steel roadbed guidance tapes, sets up shellfish thunder sheet on the said steel roadbed guidance tape, and said barge freight house also is provided with the pump drainage wetting system;
Phase III: old bridge concrete truss is removed, and is with two barges that crane span structure is empty earlier for the first time, and barge water-filling come-up keeps concrete truss level; The east side barge is fixed on the riverbank, east side earlier, laterally westwards during side shifting, puts stationary rope at barge while moving, and barge moves with electronic or bottle gouard moved by hands; Make old bridge integral body laterally move to reinforced concrete base top, west side, reinforced concrete base is provided with the steel cylinder, and after the completion, west side barge water-filling sinks; Keep concrete truss level in this process, behind mobile end first, concrete truss west end adopts the steel rollers roll having on the concrete basis; The east is used the barge stent support, moves with dilatory barge, moves to the bank until barge; Barge sinks, and the concrete truss is pulled on the bank by hoist engine, and the bank adopts crane to assist moving bridge simultaneously.
As preferably, at first to existing road envelope road, safety guard net is set in the phase I in old bridge bottom and two on bridge, adopt the air compressor machine manual work to cut the old bridge member, tear railing earlier open, cut the bridge floor shop again; Span concrete beam plate in tearing open earlier then; After tear the end bay beam slab open, connecting reinforcement between beam slab and beam slab adopts gas cutting to cut off, and gets through the interior concrete of strand seam with the wind original text; To reduce constraint and the restraint forces between the beam slab; In the span beam slab earlier winches to the abutment position with small-sized bridge formation machine, hang on flat car with crane again and transport, and avris is striden beam slab and is directly hung on flat car with crane and transport.
As preferably, in the second stage, to make shellfish thunder sheet end face be higher than 0.2~0.3m at the bottom of the concrete truss after the barge come-up, to regulate through filling, arrange in the barge ballasting, barge is pressed 1.5 times of water-fillings of capacity value.
As preferably, the shellfish thunder sheet on each row steel roadbed guidance tape is arranged and is trapezoidal, is connected by channel-section steel between shellfish thunder sheet and fixing.
As preferably, be " X " shape connection and fixing by channel-section steel between shellfish thunder sheet on the said two row steel roadbed guidance tapes, and " X " top is connected by channel-section steel fixing.
The present invention carries and tears bridge method open and can be used for removal of old bridge, because the concrete truss is removed the integral translation method that has adopted barge and track combination, speed of application is fast, and the iceound time is short, helps reducing the influence that the removal of old bridge construction normally moves the navigation channel.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is further described:
Fig. 1 is the barge structure sketch map;
Fig. 2 is the barge vertical view;
Fig. 3 is preparation of construction sketch map during the stage;
Fig. 4 is old bridge concrete truss sketch map when traversing.
The specific embodiment
Specify the embodiment that transportation by driving is torn the bridge method open in conjunction with Fig. 1 to Fig. 4, comprise the steps:
Phase I: the old bridge bridge floor is removed the construction stage, tears railing earlier open, cuts the bridge floor shop again, and span concrete beam plate in tearing open is then torn the end bay beam slab at last open; Detailed process to existing road envelope road, is provided with safety guard net in old bridge bottom and two on bridge at first, adopts the air compressor machine manual work to cut the old bridge member, tears railing earlier open, cuts the bridge floor shop again; Span concrete beam plate in tearing open earlier then; After tear the end bay beam slab open, connecting reinforcement between beam slab and beam slab adopts gas cutting to cut off, and gets through the interior concrete of strand seam with the wind original text; To reduce constraint and the restraint forces between the beam slab; In the span beam slab earlier winches to the abutment position with small-sized bridge formation machine, hang on flat car with crane again and transport, and avris is striden beam slab and is directly hung on flat car with crane and transport.
Second stage: old bridge concrete truss is removed the preparation of construction stage, the excavation and concrete truss 5 longitudinal directions construction twice reinforced concrete base 7, basic end face pre-embedded steel slab 8 are arranged along old bridge in the old bridge west side; Steel plate is dragging track usefulness when traversing as old bridge, and simultaneously, two barges 1 are in place; Connect with wire rope 6 between two barges; Freight house 11 left and right sides of barge are set up in parallel two row steel roadbed guidance tapes 2, set up shellfish thunder sheet 3 on the said steel roadbed guidance tape, and said barge freight house also is provided with the pump drainage wetting system;
Phase III: old bridge concrete truss is removed, and is with two barges that crane span structure is empty earlier for the first time, and barge water-filling come-up keeps concrete truss 5 levels; The east side barge is fixed on the riverbank, east side earlier, laterally westwards during side shifting, puts stationary rope at barge while moving, and barge moves with electronic or bottle gouard moved by hands; Make old bridge integral body laterally move to reinforced concrete base top, west side, reinforced concrete base is provided with steel cylinder 9, and after the completion, west side barge water-filling sinks; Keep concrete truss level in this process, behind mobile end first, concrete truss west end adopts the steel rollers roll having on the concrete basis; The east is used the barge stent support, moves with dilatory barge, moves to the bank until barge; Barge sinks, and the concrete truss is pulled on the bank by hoist engine, and the bank adopts crane to assist moving bridge simultaneously.
In the second stage, will make shellfish thunder sheet end face be higher than 0.2~0.3m at the bottom of the concrete truss after the barge come-up, regulate through filling, arrange in the barge ballasting, barge is pressed 1.5 times of water-fillings of capacity value.
In addition, shellfish thunder sheet on each row steel roadbed guidance tape is arranged and is trapezoidal, is connected by channel-section steel 4 between shellfish thunder sheet and fixing.Be " X " shape connection and fixing by channel-section steel between shellfish thunder sheet on the said two row steel roadbed guidance tapes, and " X " top is connected by channel-section steel fixing.

Claims (5)

1. transportation by driving is torn the bridge method open, it is characterized in that comprising the steps:
Phase I: the old bridge bridge floor is removed the construction stage, tears railing earlier open, cuts the bridge floor shop again, and span concrete beam plate in tearing open is then torn the end bay beam slab at last open;
Second stage: old bridge concrete truss is removed the preparation of construction stage; At old bridge west side excavation and along old bridge concrete truss (5) longitudinal direction construction twice reinforced concrete bases (7) are arranged, basic end face pre-embedded steel slab (8), steel plate as old bridge when traversing dragging track use; Simultaneously; Two barges (1) are in place, connect with wire rope (6) between two barges, and the freight house of barge (11) left and right sides is set up in parallel two row steel roadbed guidance tapes (2); Set up shellfish thunder sheet (3) on the said steel roadbed guidance tape, said barge freight house also is provided with the pump drainage wetting system;
Phase III: old bridge concrete truss is removed, and with two barges that crane span structure is empty earlier for the first time, barge water-filling come-up keeps concrete truss (5) level; The east side barge is fixed on the riverbank, east side earlier, laterally westwards during side shifting, puts stationary rope at barge while moving, and barge moves with electronic or bottle gouard moved by hands; Make old bridge integral body laterally move to reinforced concrete base top, west side, reinforced concrete base is provided with steel cylinder (9), and after the completion, west side barge water-filling sinks; Keep concrete truss level in this process, behind mobile end first, concrete truss west end adopts the steel rollers roll having on the concrete basis; The east is used the barge stent support, moves with dilatory barge, moves to the bank until barge; Barge sinks, and the concrete truss is pulled on the bank by hoist engine, and the bank adopts crane to assist moving bridge simultaneously.
2. transportation by driving according to claim 1 is torn the bridge method open, it is characterized in that: at first to existing road envelope road, in old bridge bottom and two on bridge safety guard net is set in the phase I, adopts the air compressor machine manual work to cut the old bridge member, tear railing earlier open, cut the bridge floor shop again; Span concrete beam plate in tearing open earlier then; After tear the end bay beam slab open, connecting reinforcement between beam slab and beam slab adopts gas cutting to cut off, and gets through the interior concrete of strand seam with the wind original text; To reduce constraint and the restraint forces between the beam slab; In the span beam slab earlier winches to the abutment position with small-sized bridge formation machine, hang on flat car with crane again and transport, and avris is striden beam slab and is directly hung on flat car with crane and transport.
3. transportation by driving according to claim 2 is torn the bridge method open, it is characterized in that: in the second stage, will make shellfish thunder sheet end face be higher than 0.2~0.3m at the bottom of the concrete truss after the barge come-up, regulate through filling, arrange in the barge ballasting, barge is pressed 1.5 times of water-fillings of capacity value.
4. transportation by driving according to claim 3 is torn the bridge method open, it is characterized in that: shellfish thunder sheet on each row steel roadbed guidance tape is arranged and is trapezoidal, is connected by channel-section steel (4) between shellfish thunder sheet and fixing.
5. transportation by driving according to claim 4 is torn the bridge method open, it is characterized in that: be " X " shape connection and fixing by channel-section steel between shellfish thunder sheet on the said two row steel roadbed guidance tapes, and " X " top is connected by channel-section steel fixing.
CN 201110260616 2011-09-05 2011-09-05 Floating bridge removing method CN102409623B (en)

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Application Number Priority Date Filing Date Title
CN 201110260616 CN102409623B (en) 2011-09-05 2011-09-05 Floating bridge removing method

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Application Number Priority Date Filing Date Title
CN 201110260616 CN102409623B (en) 2011-09-05 2011-09-05 Floating bridge removing method

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CN102409623A true CN102409623A (en) 2012-04-11
CN102409623B CN102409623B (en) 2013-09-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106758888A (en) * 2016-12-02 2017-05-31 中铁上海工程局集团有限公司 A kind of quick method for dismounting for multispan concrete arch-type bridge waterborne

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10280328A (en) * 1997-04-01 1998-10-20 Nkk Corp Removal and erection method for bridge and pontoon equipment used to the method
JP2001226914A (en) * 2000-02-18 2001-08-24 Nagata Kogyo Kk Method of removing bridge floor slab
JP2005068816A (en) * 2003-08-25 2005-03-17 East Japan Railway Co Construction method for abutment with reconstruction for bridge and its abutment structure
JP2007321475A (en) * 2006-06-01 2007-12-13 Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd Barge for construction of bridge, and bridge removal method
CN101892632A (en) * 2009-05-19 2010-11-24 上海市基础工程公司 Construction method of structural system of river under no-cutoff working condition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10280328A (en) * 1997-04-01 1998-10-20 Nkk Corp Removal and erection method for bridge and pontoon equipment used to the method
JP2001226914A (en) * 2000-02-18 2001-08-24 Nagata Kogyo Kk Method of removing bridge floor slab
JP2005068816A (en) * 2003-08-25 2005-03-17 East Japan Railway Co Construction method for abutment with reconstruction for bridge and its abutment structure
JP2007321475A (en) * 2006-06-01 2007-12-13 Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd Barge for construction of bridge, and bridge removal method
CN101892632A (en) * 2009-05-19 2010-11-24 上海市基础工程公司 Construction method of structural system of river under no-cutoff working condition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106758888A (en) * 2016-12-02 2017-05-31 中铁上海工程局集团有限公司 A kind of quick method for dismounting for multispan concrete arch-type bridge waterborne

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Address before: 261400 No. 29 North Haiyang Road, Zhifu District, Shandong, Yantai

Patentee before: Shandong Zhonghong Road and Bridge Construction Co., Ltd.

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