CN202989781U - Width widened cast-in-place box beam moving support - Google Patents

Width widened cast-in-place box beam moving support Download PDF

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Publication number
CN202989781U
CN202989781U CN 201220682840 CN201220682840U CN202989781U CN 202989781 U CN202989781 U CN 202989781U CN 201220682840 CN201220682840 CN 201220682840 CN 201220682840 U CN201220682840 U CN 201220682840U CN 202989781 U CN202989781 U CN 202989781U
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China
Prior art keywords
pillar
cast
traversing carriage
cantilever beams
broadens
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CN 201220682840
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Chinese (zh)
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彭力军
刘志峰
吴良木
閤昆武
彭修权
刘军
牟芸
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Guangdong Changda Highway Engineering Co Ltd
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Guangdong Changda Highway Engineering Co Ltd
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Abstract

The utility model discloses a width widened cast-in-place box beam moving support which is characterized by mainly comprising a bearing platform, an overhanging beam, a left column, a middle column, a right column, a left beam, a middle beam, a right beam and a die carrier, wherein the overhanging beam is horizontally arranged on the bearing platform; the left column, the middle column and the right column are arranged on the overhanging beam; the left beam, the middle beam and the right beam can drive the die carrier to move longitudinally by a motor-driven roller; and the left beam and the right beam drive a left die plate frame and a right die plate frame to move transversely along a slide rail through a hydraulic jack. Due to the adoption of the structure, the problem that a conventional movable die carrier cannot be used on an ultra-wide box beam and a width-variable box beam is solved, the purpose of width widened construction is achieved through adjusting the width of the top bracket of the middle beam, the integral overhanging beam arranged on the bearing platform serves as a cantilever bearing structure, so that the bearing capability of the cantilever is enhanced; and since the middle beam and an upper die plate on the middle beam need not to be moved transversely, all that is needed is to move the side beam and the die carrier on two sides and the width is widened.

Description

The wide cut cast-in-situ box girder traversing carriage that broadens
Technical field
The utility model relates to a kind of cast-in-situ box girder traversing carriage, specifically a kind of wide cut cast-in-situ box girder traversing carriage that broadens.
Background technology
Wide dark riverine expressway highway Shenzhen Section the 3rd contract section, case beam waters of living in depth of water when slack tide is the 6m left and right, more than the cushion cap face of its pier stud is in the water surface.According to situations such as construction period, costs, right width 72#-86# pier totally 14 across, left width 78#-90# pier totally 12 need adopt mobile formwork to construct across the case beam.This two parts case beam is bend, the inclination structure that broadens, and deck-siding is 24.01m to the maximum, and deck-siding progressively diminishes along building direction, and it is 5.0m that deck-siding changes the maximum.The pier stud Breadth Maximum is about 14m, and the case beam both sides inclination discrepancy in elevation is 48cm to the maximum.The case beam vertically is provided with the unidirectional gradient, and its rear and front end longitudinal gradient discrepancy in elevation maximum is about 1.2m.Case beam and pier stud direction across bridge form of structure are seen Fig. 1.Different from the box-beam structure that adopted Construction Through Form on Traveler in the past, this two parts case beam and corresponding pier stud, its structure width is large, structural change is many, complex structure, and is poor with mobile formwork coupling, adaptability, adopts the difficulty of Construction Through Form on Traveler quite large.
Existing technical literature discloses " traversing carriage cast-in-situ simple supported box beam construction Design of Construction Organization ", and the traversing carriage design principle: two straddle type traversing carriages are the equipment for bridge constructions that manufacture and design for the construction that satisfies Line for Passenger Transportation 32m, 24m simple supported box beam cast-in-situ.Traversing carriage can carry out assembly unit, beam processed between any two bridge piers, complete bridge superstructure at the bridge pier cast-in-situ beam-making.This supporting system in column, passes through the column power transmission in cushion cap by the power transmission of shellfish thunder sheet afterwards.By the repeated combination of supporting system is used, realize to the concrete beam cast-in-situ, by the construction of Kong Chengqiao.The machine has that equipment is simple, cost is relatively cheap, constructing operation is convenient, take that the construction plant is few, its via hole is quick, becomes across convenient, improved whole bridging speed, saves the characteristics such as equipment investment.The brief introduction of traversing carriage design scheme: the traversing carriage engineering method has that operation procedure is clear, structure stress is clear and definite, support intensity is higher, economy, turnaround speed are fast, be convenient to carry out the characteristics such as parallel line production.Primary structure has: column, sand cylinder, top rail, longeron, bottom side form and support, internal mold and support.Traversing carriage column and shellfish thunder sheet are installed and are adopted the artificial crane construction that coordinates, internal mold to adopt the automatic sliding system, positioning accurately, safety.The traversing carriage technical data: construction beam is across 32m, 24m, often across beam weight≤900t; Adapt to maximum longitudinal grade≤3%, horizontal wall inscription≤4%; The main structure system: two straddle type traversing carriage longerons adopt individual layer reinforced shellfish thunder sheet (321 type 16Mnl-3000mm, 321 type 16Mnl-2500mm); Outer modular system: the exterior sheathing system is comprised of nonstandard template, standard form and support.Wherein the every segment length of standard form is 2 meters and joins work.Every template has bolt to connect horizontal and vertical, and its skeleton is formed by i iron and angle steel assembly welding.The arch camber line style is carried out arch camber by the second-degree parabola feature.Side form and bed die arch camber must be the same arch camber amounts of same line style.For guaranteeing safety in construction, template is provided with movable platform and railing.At 32m, 24m during across the beam length conversion, only need standard form is extracted out and get final product; Inner formwork system: inner formwork system is comprised of inner formword, track, spiral strut etc.The inner formword system is comprised of nonstandard template, standard form, support.Wherein the every segment length of standard form is 4 meters.Every template has bolt to connect horizontal and vertical, and its skeleton is formed by steel plate muscle rib and channel-section steel assembly welding, plate thickness 6mm.Above-mentioned mobile formwork is made the as a whole width that can not broaden, although realized the technique of mobile formwork cast-in-place construction, can not adapt to the construction that becomes wide box girder.
Summary of the invention
In order to overcome above-mentioned deficiency, the purpose of the utility model patent is to provide the high wide cut of a kind of efficiency of construction cast-in-situ box girder traversing carriage that broadens.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
The wide cut cast-in-situ box girder traversing carriage that broadens, it mainly contains cushion cap, Cantilever Beams, left side pillar, B-C post, the right pillar, left side beam, central sill, the right beam and mould bases and consists of, described Cantilever Beams level is located on cushion cap, described left side pillar, B-C post and the right pillar are located on Cantilever Beams, left side beam, central sill, the right beam are located at respectively on the slide rail at top of left side pillar, B-C post and the right pillar, to being connected to front launching nose, its rear end is respectively to being connected to back launching nose respectively for the front end of described left side beam, central sill and the right beam; Mould bases is to be made of left side template frame, bed die grillage and right side template frame, left side template frame, bed die grillage and right side template frame are located at respectively on left side beam, central sill, the right beam, described left side beam, central sill, the right beam can drive mould bases by the motor-driven roller and vertically move, and left side beam, the right beam can drive left side template frame and right side template frame transverse shifting along slide rail by hydraulic jack.
Described Cantilever Beams is to be formed by connecting by rod member by two parts girder be placed in cushion cap both sides.
Be provided with cushion block between described Cantilever Beams and cushion cap, can regulate the depth of beam of encorbelmenting by the thickness that changes cushion block.
Also be provided with anti-tension fixing apparatus between described Cantilever Beams and cushion cap.
Described left side pillar, B-C post, the right pillar adopt the form of structure of steel casing, and described Cantilever Beams is provided with a plurality of bearings, and the lower end of left side pillar, B-C post, the right pillar is separately fixed on corresponding bearing.
Described mould bases is the steel pipe support structure.
The beneficial effects of the utility model are: due to above-mentioned form of structure, solved the difficult problem that traditional mobile formwork can not use on super wide case beam, wide variety case beam, by traversing side bar realize the broadening purpose of width construction; Adopted the monolithic Cantilever Beams as the cantilever bearing structure on cushion cap, the cantilever supporting capacity is strengthened; Whole Cantilever Beams, pier construction replace the high bracket structure of separate type, have greatly saved the support material requested, have reduced construction cost; The formwork structure of freestanding limit, central sill has replaced the monolithic formwork structure, and width is laid a good foundation in order to broaden; By left side beam, central sill, the right beam steel main beam structure as traversing carriage, replaced the traversing carriage of shellfish thunder sheet assembly unit, significantly improved supporting capacity; Adopt cushion block to support Cantilever Beams, by the kind of cushion block and vertical discrepancy in elevation of quantity regulating case beam.By the successful utilization of above measure, efficiently solve traditional traversing carriage difficult problem that the horizontal and vertical discrepancy in elevation is regulated in box girder construction.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 be shown in Figure 1 along A to lateral view.
In figure: 1, pile foundation; 2, cushion cap; 3, Cantilever Beams; 4, left side pillar; 5, B-C post; 6, the right pillar; 7, left side beam; 8, central sill; 9, the right beam; 10, mould bases; 11, slide rail; 12, left side template frame; 13, bed die grillage; 14, right side template frame; 15, jack; 16, cushion block; 17, the anti-fixing apparatus of straining; 18, bearing; 19, front launching nose; 20, back launching nose.
The specific embodiment
The present embodiment is case beam and the pier stud direction across bridge structural profile schematic diagram that wide dark riverine expressway highway Shenzhen Section the 3rd contract section adopts.This section case beam waters of living in depth of water when slack tide is about 6m, more than the cushion cap face of its pier stud is in the water surface so that right width 72#-86# pier totally 14 across, left width 78#-90# pier totally 12 need adopt mobile formwork to construct across the case beam.This two parts case beam is bend, the inclination structure that broadens, and deck-siding is 24.01m to the maximum, and deck-siding progressively diminishes along building direction, and it is 5.0m that deck-siding changes the maximum.The pier stud Breadth Maximum is about 14m, and the case beam both sides inclination discrepancy in elevation is 48cm to the maximum.The case beam vertically is provided with the unidirectional gradient, and its rear and front end longitudinal gradient discrepancy in elevation maximum is about 1.2m.This two parts case beam and corresponding pier stud, its structure width is large, structural change is many, complex structure, and is poor with mobile formwork coupling, adaptability, adopts the difficulty of Construction Through Form on Traveler quite large.Therefore, in this contract section, for the problem of Construction Through Form on Traveler characteristics and existence, adopt traversing carriage to construct.
as Fig. 1, shown in 2, the wide cut cast-in-situ box girder traversing carriage that broadens, it mainly contains pile foundation 1, cushion cap 2, Cantilever Beams 3, left side pillar 4, B-C post 5, the right pillar 6, left side beam 7, central sill 8, the right beam 9 and mould bases 10 consist of, cushion cap 2 is located on pile foundation 1, described Cantilever Beams 3 levels are located on cushion cap 2, described left side pillar 4, B-C post 5 and the right pillar 6 are located on Cantilever Beams 3, left side beam 7, central sill 8, the right beam 9 is located at respectively left side pillar 4, on the slide rail 11 at the top of B-C post 5 and the right pillar 6, described left side beam 7, the front end of central sill 8 and the right beam 9 is respectively to being connected to front launching nose 19, its rear end is respectively to being connected to back launching nose 20.Described mould bases 10 is the steel pipe support structure, mould bases 10 is that left side template frame 12, bed die grillage 13 and right side template frame 14 are spliced, left side template frame 12, bed die grillage 13 and right side template frame 14 are located at respectively on left side beam 7, central sill 8, the right beam 9, described left side beam 7, central sill 8, the right beam 9 drive mould bases by longitudinal-moving device along slide rail 11 and vertically move, and left side beam 7, the right beam 9 can drive left side template frame and right side template frame transverse shifting along slide rail by Traverse Displacement Unit.Traverse Displacement Unit is comprised of slide block and draw-gear.Slide block placing steel beam bottom, major part is thick 20mm steel plate, draw-gear is feed-through hydraulic continuous jack 15.Longitudinal-moving device: vertical shift utilizes self-powered roller system to carry out.Power is the 1.5kw motor.
Left side beam 7, central sill 8 and the right beam are connected and the connector that is connected with them has consisted of traversing carriage, bear top falsework and concrete load, and central sill 8 is the inside box-structure with ribbing, cross sectional dimensions 1.94m * 1.6m; Left side beam 7 and the right beam 9 the insides box-structure with ribbing, cross sectional dimensions 1.6m * 1.1m.
Described Cantilever Beams 3 is to be docked by junction plate by two parts to form.Be provided with cushion block 16 between Cantilever Beams 3 and cushion cap 2, can regulate the depth of beam of encorbelmenting by the thickness that changes cushion block 16.Also be provided with anti-tension fixing apparatus 17 between Cantilever Beams 3 and cushion cap 2.
Described left side pillar 4, B-C post 5, the right pillar 6 adopt the form of structure of steel casing, and described Cantilever Beams 3 is provided with a plurality of bearings 18, and the lower end of left side pillar 4, B-C post 5, the right pillar 6 is separately fixed on corresponding bearing 18.
The above-mentioned member suitable length that each forms, single-piece weight is suitable, is conducive to assembly unit, transportation, dismounting, stable action, safety, quick construction, the recycling rate of waterused of parts is high.
In addition, in the dismantle processes of support infrastructure, improvement has been arranged also, specifically: traditional mobile formwork bottom bracing structure utilizes crane barge to carry out the lifting work of demolition, installation.The difficult point of demolition, installation work is the pillar dismounting, and this causes crane barge not have enough operating spaces to complete lifting operation because pillar is removed need to carry out below watering the case beam.The Novel movable form frame system utilizes the hanging devices such as hoist engine and Chain block, adopts to swing to move with the mode such as slippage pillar is shifted out cushion cap, transfers to workboat, and then utilizes crane barge to complete its installation work.Quarter line pillaring is in below case beam wing plate, and its dismounting work has certain operating space.Therefore, the quarter line pillaring utilization is located at hoist engine on beam as lifting device, pillar is carried out relay-type swing and move, and completes its dismounting work.
Operating principle: the utilization of C class traversing carriage is supported on lower support system on cushion cap as support, utilizes the beam system to bear the cast load of case beam girder span structure, utilizes form frame system to carry out the box beam concrete pouring construction as support and template.The reach mode of mobile formwork is, utilizes freighter as delivery vehicle, and the lower support System Construction is dragged to freighter, with the next Dun Chu of iron barge shipping to mould bases reach direction, then the lower support system is dragged to cushion cap installs.In such a way successively with lower support System Construction alternating forward to the next cushion cap, the reach by cross in the lower support system of beam system and top mold frame System Construction thereof.The movement of beam body realizes by traversing and vertical shift, the first traversing vertical shift again of beam body structure, and the traversing jack application of force of utilizing adopts slip mode to carry out; Vertical shift utilizes self-powered roller system to carry out.
In a word; although the utility model has been enumerated above-mentioned preferred embodiment; but should illustrate; although those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present utility model, otherwise all should be included in protection domain of the present utility model.

Claims (7)

1. wide cut cast-in-situ box girder traversing carriage that broadens, it is characterized in that: it mainly contains cushion cap, Cantilever Beams, left side pillar, B-C post, the right pillar, left side beam, central sill, the right beam and mould bases and consists of, described Cantilever Beams level is located on cushion cap, described left side pillar, B-C post and the right pillar are located on Cantilever Beams, left side beam, central sill, the right beam are located at respectively on the slide rail at top of left side pillar, B-C post and the right pillar, to being connected to front launching nose, its rear end is respectively to being connected to back launching nose respectively for the front end of described left side beam, central sill and the right beam; Mould bases is to be made of left side template frame, bed die grillage and right side template frame, left side template frame, bed die grillage and right side template frame are located at respectively on left side beam, central sill, the right beam, described left side beam, central sill, the right beam can drive mould bases by the motor-driven roller and vertically move, and left side beam, the right beam can drive left side template frame and right side template frame transverse shifting along slide rail by hydraulic jack.
2. the wide cut according to claim 1 cast-in-situ box girder traversing carriage that broadens is characterized in that: described Cantilever Beams is to be formed by connecting by rod member by two parts girder be placed in cushion cap both sides.
3. a kind of wide cut according to claim 2 cast-in-situ box girder traversing carriage that broadens, is characterized in that: be provided with cushion block between described Cantilever Beams and cushion cap, can regulate the depth of beam of encorbelmenting by the thickness that changes cushion block.
4. the wide cut according to claim 3 cast-in-situ box girder traversing carriage that broadens, is characterized in that: also be provided with anti-tension fixing apparatus between described Cantilever Beams and cushion cap.
5. the wide cut according to claim 4 cast-in-situ box girder traversing carriage that broadens, it is characterized in that: described left side pillar, B-C post, the right pillar adopt the form of structure of steel casing, described Cantilever Beams is provided with a plurality of bearings, and the lower end of left side pillar, B-C post, the right pillar is separately fixed on corresponding bearing.
6. the wide cut according to claim 1 cast-in-situ box girder traversing carriage that broadens, it is characterized in that: described central sill is the inside box-structure with ribbing, cross sectional dimensions 1.94m * 1.6m; Described left side beam and the right beam the inside box-structure with ribbing, cross sectional dimensions 1.6m * 1.1m.
7. the wide cut according to claim 1 cast-in-situ box girder traversing carriage that broadens, it is characterized in that: described mould bases is the steel pipe support structure.
CN 201220682840 2012-12-12 2012-12-12 Width widened cast-in-place box beam moving support Active CN202989781U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979038A (en) * 2012-12-12 2013-03-20 广东省长大公路工程有限公司 Cast-in-place box beam mobile bracket with increased width
CN105464000A (en) * 2016-01-10 2016-04-06 中铁十一局集团第一工程有限公司 Cast-in-place box beam moving formwork
CN109457618A (en) * 2018-12-11 2019-03-12 中交第二航务工程局有限公司 A kind of concrete girder cast-in-situ construction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979038A (en) * 2012-12-12 2013-03-20 广东省长大公路工程有限公司 Cast-in-place box beam mobile bracket with increased width
CN105464000A (en) * 2016-01-10 2016-04-06 中铁十一局集团第一工程有限公司 Cast-in-place box beam moving formwork
CN109457618A (en) * 2018-12-11 2019-03-12 中交第二航务工程局有限公司 A kind of concrete girder cast-in-situ construction method
CN109457618B (en) * 2018-12-11 2021-06-01 中交第二航务工程局有限公司 Cast-in-place construction method for concrete main beam

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