CN101793012B - Novel non-bracket bridge constructing method - Google Patents

Novel non-bracket bridge constructing method Download PDF

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Publication number
CN101793012B
CN101793012B CN2010101523817A CN201010152381A CN101793012B CN 101793012 B CN101793012 B CN 101793012B CN 2010101523817 A CN2010101523817 A CN 2010101523817A CN 201010152381 A CN201010152381 A CN 201010152381A CN 101793012 B CN101793012 B CN 101793012B
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China
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bridge
constructing
reinforcing bar
bracket
novel
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CN2010101523817A
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Chinese (zh)
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CN101793012A (en
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毕承会
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毕承会
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Priority to CN2010101523817A priority Critical patent/CN101793012B/en
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Publication of CN101793012B publication Critical patent/CN101793012B/en

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Abstract

The invention discloses a novel non-bracket bridge constructing method, which comprises the following steps: a first step of constructing a bridge pier, paving a plurality of beam plates above the bridge pier along the width direction of a bridge deck, installing bridge pier base tyres and pouring concrete to cast into bridge pier bases, wherein the beam plates are in parallel with each other and are arranged vertically and screw rods pass through positioning holes on the beam plates to fix the beam plates; a second step of sequentially setting up a cement board, a plurality of cross bars and steel beams on the two adjacent bridge pier bases; a third step of paving bridge deck reinforced skeleton frames on the steel beams; and a fourth step of installing bridge deck concrete tyres and pouring concrete to cast into the bridge deck. The bridge deck of the invention adopts a steel beam and reinforced supporting rod structure, guarantees the strength of the bridge deck in the process of constructing the bridge and saves the using of the bracket. The bridge deck reinforced skeleton fames adopt a supporting mode of transverse and vertical supporting rods so as to further improve the strength of the bridge deck. The upper part of the bridge pier adopts a beam plate structure, thus, the supporting strength is greatly increased. As the bracket is not required, the bridge constructing period is greatly reduced, the cost is saved and the inconvenience of constructing the bridge in the cities or on the sea is overcome.

Description

A kind of novel non-bracket bridge constructing method

Technical field

The present invention relates to the bridging field, particularly a kind of novel non-bracket bridge constructing method.

Background technology

Existing bridging method when building bridge floor, need be provided with support below bridge floor, to hold bridge floor, prevent that bridge floor from falling or be out of shape, treat that bridge deck concrete solidifies after, remove support; The shortcoming of this method is: increased the operation of bridge construction, the efficient of bridge construction reduced greatly, and if bridge erection in the city, then influence the traffic under the bridge; If at sea build bridge, then difficulty further increases.

Summary of the invention

The objective of the invention is to, overcome the technical problem that needs support when building bridge in the prior art, a kind of novel non-bracket bridge constructing method is provided.

In order to achieve the above object, a kind of novel non-bracket bridge constructing method provided by the invention may further comprise the steps: the first step, construction bridge pier, lay some beam slabs in the bridge pier top along the bridge deck width direction; Said beam slab is parallel to each other, vertically places, and the locating hole that screw rod passes on the beam slab is fixed; Bridge pier base tire is installed, and placing of concrete is cast the bridge pier base; Second step, on two adjacent bridge pier bases, set up cement board, plurality of cross bars and girder steel successively; Said cross bar laterally arranges along the bridge deck width direction, and girder steel is provided with along the bridge floor length direction, and its length is consistent with every section bridge floor length; The 3rd goes on foot, on girder steel, lays the bridge floor cage of reinforcement, and the reinforcing bar of this bridge floor cage of reinforcement supports through cross support arm and perpendicular pole; The 4th step, installation bridge deck concrete tire, placing of concrete is cast bridge floor, unloads the cement base plate then and uses.

According to novel non-bracket bridge constructing method one optimal technical scheme provided by the invention be: the beam slab bottom in the said first step is provided with some cylinder cushion blocks; Said cushion block external surface is provided with the concrete groove.

According to novel non-bracket bridge constructing method one optimal technical scheme provided by the invention be: the screw rod outside in the said first step is arranged with and isolates with pipe.

According to novel non-bracket bridge constructing method one optimal technical scheme provided by the invention be: the both sides of girder steel are adopted and are strengthened strut fixation on cross bar in said second step.

According to novel non-bracket bridge constructing method one optimal technical scheme provided by the invention be: said the 3rd step comprises following substep: at first, and along the some cross support arms of bridge deck width direction parallel lay-up; Then, utilize reinforcing bar tire assembling bridge floor cage of reinforcement, said reinforcing bar tire is a wedge shape, and the inclined-plane is provided with some grooves, places reinforcing bar in the groove; During use, place reinforcing bar in the groove of a pair of wedge shape reinforcing bar tire, the perpendicular pole of installation also welds, and regulates width, and the longitudinal bar that utilizes loose card instrument slowly to tilt to weld makes it be in vertical plane, welds cross support arm then.。

According to novel non-bracket bridge constructing method one optimal technical scheme provided by the invention be: utilize loose card instrument to regulate the width of reinforcing bar; Said loose card instrument comprises a pair of tensioner L type curved boom, and said tensioner L type curved boom connects with threaded rod, and the arm end has groove; During use, reinforcing bar as in the groove, is regulated the distance between the tensioner L type curved boom with threaded rod, and then the distance of regulating reinforcing bar.

Beneficial technical effects of the present invention is: bridge floor adopts girder steel, reinforces the structure of pole, the intensity of bridge floor when having guaranteed bridge construction, the use of having omitted support; The bridge floor cage of reinforcement adopts the support of horizontal, vertical pole, further improves bridge floor intensity; Beam and slab structure is adopted in the bridge pier top, and support strength strengthens greatly; Owing to do not need support, significantly reduced the bridging cycle, practice thrift cost (steel); The inconvenience of overcome in the city, bridge is built at the sea.

Description of drawings

Fig. 1 is that novel non-bracket bridge constructing method of the present invention is installed bridge pier base sidewall view.

Fig. 2 is that novel non-bracket bridge constructing method of the present invention is installed bridge pier base tire vertical view.

[0013Fig. 3 is a novel non-bracket bridge constructing method assembling beam slab vertical view of the present invention.

Fig. 4 is a novel non-bracket bridge constructing method assembling beam slab lateral view of the present invention.

Fig. 5 is that novel non-bracket bridge constructing method of the present invention is built the bridge pier lateral view of accomplishing.

Fig. 6 is that novel non-bracket bridge constructing method of the present invention is built the bridge pier vertical view of accomplishing.

Fig. 7 is the lateral view of novel non-bracket bridge constructing method steel beam structure of the present invention.

Fig. 8 is the vertical view of novel non-bracket bridge constructing method steel beam structure of the present invention.

Fig. 9 is the part sectional drawing that novel non-bracket bridge constructing method of the present invention is laid bridge floor.

Figure 10 be among Fig. 9 C-C to sectional view.

Figure 11 is the simple and easy vertical view of novel non-bracket bridge constructing method assembling bridge floor cage of reinforcement of the present invention.

Figure 12 is the sketch map that novel non-bracket bridge constructing method of the present invention utilizes reinforcing bar tire assembling bridge floor cage of reinforcement reinforcing bar.

Figure 13 is the single reinforcing bar tire assembling of a novel non-bracket bridge constructing method of the present invention reinforcing bar sketch map.

Figure 14 is the single reinforcing bar tire of a novel non-bracket bridge constructing method of the present invention structural representation.

Figure 15 be among Figure 14 A-A to sectional view.

Figure 16 is the single reinforcing bar of a novel non-bracket bridge constructing method of the present invention sidewall view.

Figure 17 is the simple and easy vertical view of the bridge floor cage of reinforcement of novel non-bracket bridge constructing method assembling completion of the present invention.

Figure 18 is the structure chart of novel non-bracket bridge constructing method pine card instrument of the present invention.

Figure 19 is that novel non-bracket bridge constructing method of the present invention is built the bridge floor sectional view after accomplishing.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.

In the present embodiment, novel non-bracket bridge constructing method may further comprise the steps:

Please referring to figs. 1 through Fig. 6, the first step: build bridge pier 1, lay 7 beam slabs 5 in bridge pier 1 top along the bridge deck width direction; Said beam slab 5 is parallel to each other, vertically places, and spacing is 200mm, the high 180mm of beam slab, long 12.5m, wide 18mm; The locating hole 8 that screw rod 6 (M20) passes on the beam slab 5 is fixing; Bridge pier base tire 2 (being suspended on the bridge pier through lifting hole(eyelet) 4) are installed, and placing of concrete is cast bridge pier base 3, base 3 long 13m, high 230mm; Wherein, beam slab 5 bottoms are provided with some cylinder cushion blocks 9, and the diameter of section of cushion block 9 is 25mm, and height is 50mm; Said cushion block 9 external surfaces are provided with concrete groove 10, and this groove 10 is 2 to take advantage of 60 degree, is used for further adding the interlock dynamics of reinforced concrete and cushion block 9; Screw rod 6 outsides are arranged with and isolate with pipe 7; The certain angle if bridge floor need tilt, then the bridge pier base on the two adjacent bridge piers should have certain drop mutually, and wherein 24 is top wire holes.

Please with reference to Fig. 7 to Figure 10, second step: on two adjacent bridge pier bases 3, set up cement board 20, plurality of cross bars 21 and girder steel 18 successively; Said cross bar 21 laterally arranges along the bridge deck width direction, and girder steel 18 is provided with along the bridge floor length direction, and its length is 45m, and is consistent with every section bridge floor length, highly is 180mm; The both sides of girder steel 18 adopt reinforcement pole 19 to be fixed on the cross bar 21; Assembly method: at first cement board 20 and cross bar 21 are fixed (welding with nut screwing clamping) again, secondly girder steel 18 is welded on the cross bar 21, will strengthen pole 19 at last and weld with screw.Every girder steel assembling concrete grammar: make 3 ~ 4 600 millimeters high supports and look for directly with the finer wire levelling, lean against support and get final product on one side be fixed on the cement base plate to support, base plate also can become 2 ~ 3; The base plate spacing is bored two holes for about 1.5 meters; The key screw base plate is tightened on the cylinder, whenever at a distance from about 1.5 meters, puts cross bar again, and cross bar is placed on the cylinder and welds; Base plate bottom surface several M16 nuts of burn-oning are later on taking out hammer dismounting base plate.The concrete grammar of removing base plate is: design a walking dolly, length is pressed base plate length and is decided.By a variable-frequency motor, drive the wire rope of two reel on the dolly, variable-frequency motor can remote-controlled operation, and the twisting push button guarantees safety of workers.Two wire rope of opposite side are fixed on the dolly, and two wire rope in centre position tighten with clamp at the bottom of the bridge.To the bridge both sides 4 fulcrums are set respectively above the dolly, a side is propped up and is pressed two pulleys, and four legs withstand on the bridge floor with screw mandrel and support.Finish this and stride, unclamp clamp again, stride two wire rope of chucking to another and work on again.

Please with reference to Figure 11 to Figure 19, the 3rd step: on girder steel 18, lay the bridge floor cage of reinforcement, the reinforcing bar 11 of this bridge floor cage of reinforcement supports through cross support arm 17 and perpendicular pole 14, and a perpendicular distance between tie rods is 2m; Concrete steps are following: at first, along the some cross support arms 17 of bridge deck width direction parallel lay-up (whenever striding 4), spacing is 15m; Then, utilize reinforcing bar tire 12 assembling bridge floor cage of reinforcement, said reinforcing bar tire 12 is a wedge shape, and the inclined-plane is provided with some grooves, places reinforcing bar 11 in the groove, but 12 times place mat i iron 16 of reinforcing bar tire; During use, place reinforcing bar 11 in the groove of a pair of wedge shape reinforcing bar tire 12, regulate width, slowly inclined wedge reinforcing bar tire 12 makes the reinforcing bar on it be in vertical plane, then the perpendicular pole 14 of welding; Wherein, utilize loose card instrument to regulate the width of reinforcing bar 11; Said loose card instrument comprises a pair of tensioner L type curved boom 23, and said tensioner curved boom 23 logical threaded rods 22 connect, and the arm end has groove 24; During use, reinforcing bar 11 as in the groove 24, is regulated the distance between the tensioner L type curved boom 23 with threaded rod 22, and then the distance of regulating reinforcing bar 11.Wherein, the 25th, screw M12,26 cylindrical nuts.Attention: after perpendicular pole welds from top rebars (first drains into the 6th row), reach vertical requirement with the loose card instrument of chucking and weld nethermost reinforcing bar again, all weld extremely, otherwise just change motionless.

The 4th step: bridge deck concrete tire 15 is installed, and placing of concrete is cast bridge floor.

Adopt method of the present invention, 140,000 tons of 4 row's (how one road emergency stopping lane only) clean steel using amounts in road of 56 kilometers, 2.4 ten thousand tons of the high steel using amounts of bridge pier 40 m.

Claims (6)

1. novel non-bracket bridge constructing method may further comprise the steps:
A. build bridge pier (1), lay some beam slabs (5) along the bridge deck width direction in bridge pier (1) top; Said beam slab (5) is parallel to each other, vertically places, and the locating hole (8) that screw rod (6) passes on the beam slab (5) is fixing; Bridge pier base tire (2) is installed, and placing of concrete is cast bridge pier base (3);
B. on two adjacent bridge pier bases (3), set up cement board (20), plurality of cross bars (21) and girder steel (18) successively; Said cross bar (21) laterally arranges along the bridge deck width direction, and girder steel (18) is provided with along the bridge floor length direction, and its length is consistent with every section bridge floor length;
C. on girder steel (18), lay the bridge floor cage of reinforcement, the reinforcing bar of this bridge floor cage of reinforcement (11) supports through cross support arm (17) and perpendicular pole (14);
D., bridge deck concrete tire (15) is installed, and placing of concrete is cast bridge floor.
2. novel non-bracket bridge constructing method according to claim 1 is characterized in that, the beam slab in the said steps A (5) bottom is provided with some cylinder cushion blocks (9); Said cushion block (9) external surface is provided with concrete groove (10).
3. novel non-bracket bridge constructing method according to claim 1 is characterized in that, the screw rod in the said steps A (6) outside is arranged with and isolates with pipe (7).
4. novel non-bracket bridge constructing method according to claim 1 is characterized in that, the both sides of girder steel among the said step B (18) adopt reinforcement pole (19) to be fixed on the cross bar (21).
5. novel non-bracket bridge constructing method according to claim 1 is characterized in that, said step C comprises following substep:
C1. along the some cross support arms of bridge deck width direction parallel lay-up (17);
C2. utilize reinforcing bar tire (12) assembling bridge floor cage of reinforcement, said reinforcing bar tire (12) is a wedge shape, and the inclined-plane is provided with some grooves, places reinforcing bar (11) in the groove; During use, place reinforcing bar (11) in the groove of a pair of wedge shape reinforcing bar tire (12), the perpendicular pole (14) of installation also welds, and regulates width, and the longitudinal bar that utilizes loose card instrument slowly to tilt to weld makes it be in vertical plane, welds cross support arm then.
6. novel non-bracket bridge constructing method according to claim 5 is characterized in that, utilizes loose card instrument to regulate the width of reinforcing bar (11) among the said step C2; Said loose card instrument comprises a pair of tensioner L type curved boom (23), and said tensioner L type curved boom (23) connects with threaded rod (22), and the arm end has groove (24); During use, reinforcing bar (11) as in the groove (24), is regulated the distance between the tensioner L type curved boom (23) with threaded rod (22), and then regulate the distance of reinforcing bar (11).
CN2010101523817A 2010-04-22 2010-04-22 Novel non-bracket bridge constructing method CN101793012B (en)

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CN101793012B true CN101793012B (en) 2012-02-08

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102605716A (en) * 2012-03-30 2012-07-25 毕承会 Construction method of bay viaduct
CN103669210A (en) * 2012-09-02 2014-03-26 江苏雄宇重工科技股份有限公司 Truss-type hanging basket used for bridge
CN103147403B (en) * 2013-03-29 2015-11-25 中交一公局第四工程有限公司 Roller die construction method for bridge high pier
CN108103937A (en) * 2017-11-24 2018-06-01 中国建筑第八工程局有限公司 Utilize the cast-in-place box beam construction method of native loose tool substitution falsework

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007048491A1 (en) * 2005-10-27 2007-05-03 Freyssinet Reinforced lattice structure and a reinforcing method
CN201330376Y (en) * 2008-10-30 2009-10-21 中冶建工有限公司 Construction-used movable unsupported bridging machine
CN101694087A (en) * 2009-10-13 2010-04-14 毕承会 Method for building novel bridge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007048491A1 (en) * 2005-10-27 2007-05-03 Freyssinet Reinforced lattice structure and a reinforcing method
CN201330376Y (en) * 2008-10-30 2009-10-21 中冶建工有限公司 Construction-used movable unsupported bridging machine
CN101694087A (en) * 2009-10-13 2010-04-14 毕承会 Method for building novel bridge

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