CN211498526U - Self-lifting type corrugated steel web cast-in-situ box girder hanging basket - Google Patents

Self-lifting type corrugated steel web cast-in-situ box girder hanging basket Download PDF

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Publication number
CN211498526U
CN211498526U CN201921553079.5U CN201921553079U CN211498526U CN 211498526 U CN211498526 U CN 211498526U CN 201921553079 U CN201921553079 U CN 201921553079U CN 211498526 U CN211498526 U CN 211498526U
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box girder
suspension
steel web
corrugated steel
rod
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CN201921553079.5U
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Inventor
王永坦
吴靖江
印国栋
刘金明
刘庆辉
刘新华
秦亚丽
李亚飞
李家星
张春然
侯冰冰
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China Construction Seventh Engineering Division Corp Ltd
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China Construction Seventh Engineering Division Corp Ltd
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Abstract

The utility model provides a self-lifting type corrugated steel web cast-in-place box girder hanging basket, which solves the problems of self weight, high construction cost and hoisting and installation of a full-range steel web of the existing hanging basket; the technical scheme for solving the problem is that the device comprises a bearing main truss, a walking system, an anchoring system, a suspension system, a template system, a hoisting system and the like; the bearing main truss comprises supporting legs, the upper ends of the supporting legs are provided with cross beams, a longitudinal beam is arranged between the front supporting leg and the rear supporting leg, and grooves are formed between PBL keys of flange plates on the corrugated steel web plates; the walking system comprises a hydraulic jack, wherein a base of the hydraulic jack is hinged with a PBL key hole of the upper flange plate of the corrugated steel web; the anchoring system comprises bottom die anchoring in the box girder box chamber and box girder flange plate bottom die anchoring, and sliding beams are arranged on the front side and the rear side of the box girder concrete box girder; the lower side of the box girder concrete box girder is provided with a bottom basket joist, and the upper side of the joist is anchored by a box girder bottom mould; the suspension system comprises a flange plate bottom die front suspension, a box girder inner die front suspension, a box girder bottom die front suspension and a box girder bottom die rear suspension, and a suspension rod is fixed on the upper side of the joist.

Description

Self-lifting type corrugated steel web cast-in-situ box girder hanging basket
Technical Field
The utility model relates to a bridge construction machinery technical field especially hangs basket from cast-in-place case roof beam of lift-type wave form steel web.
Background
The corrugated steel web bridge is a novel box-shaped beam which uses a corrugated steel plate to replace a concrete web of a concrete box beam as a web, and has the advantages of reducing the dead weight of the box beam, reducing the compressive rigidity of the web, improving the prestress efficiency of a top plate and a bottom plate and the like.
The corrugated steel web continuous beam bridge generally adopts cantilever construction, the traditional construction process adopts a rhombic hanging basket with a higher main truss, the hanging basket is beneficial to hoisting of a steel web, the center of gravity is relatively higher, the steel consumption of the hanging basket is large, the cantilever end of the hanging basket deforms greatly and moves forwards slowly, a top plate and a bottom plate of the same section are synchronously poured, the construction is overlapped up and down, the production cost is high, and the assembly is more complicated.
For a large-span corrugated steel web continuous beam bridge, a tower crane and hoisting equipment easily exceed the working range and are increased along with the length of a cantilever of the hoisting equipment, the hoisting stability is poor, and some light hanging baskets cannot be matched with the tower crane and the hoisting equipment to complete hoisting and installation operations. For some river-crossing and lake-crossing bridge projects, no tower crane and hoisting equipment work sites are arranged under the bridge, and the traditional light hanging basket cannot meet the construction requirements.
Disclosure of Invention
To the above situation, for overcoming prior art's defect, the utility model provides a hang basket from cast-in-place case roof beam of portable wave form steel web to solve present string basket from the problem of great, construction cost height and the installation of full range steel web hoist and mount.
The technical scheme for solving the problem is that the device comprises a bearing main truss, a walking system, an anchoring system, a suspension system, a template system, a hoisting system and the like;
the bearing main truss comprises a plurality of vertical supporting legs, horizontal cross beams are arranged at the upper ends of the supporting legs and are vertically crossed with the supporting legs, longitudinal beams are fixed between the front supporting legs and the rear supporting legs, grooves are formed between PBL keys of flange plates on the corrugated steel web plate, and the supporting legs are arranged in the grooves;
the walking system comprises a plurality of hydraulic jacks, bases of the hydraulic jacks are hinged with PBL key holes of the upper flange plate of the corrugated steel web, piston rods of the hydraulic jacks are connected with supporting legs through pin shafts, and the hanging basket can move when the piston rods of the hydraulic jacks extend out;
the anchoring system comprises a box girder box chamber inner bottom mould anchor and a box girder flange plate bottom mould anchor which are fixed on a box girder concrete top plate, wherein the front side and the rear side of the box girder concrete box girder are provided with horizontal sliding beams, the box girder box chamber inner bottom mould anchor and the box girder flange plate bottom mould anchor lower ends are fixed on the sliding beams through connectors; the lower side of the box girder concrete box girder is provided with a bottom basket joist, the upper side of the joist is provided with a box girder bottom die for anchoring, and the anchoring upper end of the box girder bottom die is fixed with an anchorage device through a connector through an anchor rod pre-embedded in a box girder concrete bottom plate;
the suspension system comprises a flange plate bottom die front suspension, a box girder inner die front suspension, a box girder bottom die front suspension and a box girder bottom die rear suspension, wherein a vertical suspension rod is fixed on the upper side of the joist, the upper end of the suspension rod is fixed with the cross beam, and the sliding beam is fixed with the corresponding suspension rod.
The utility model provides a corrugated steel web hang basket from the problem of great, construction cost height etc. through the combination of each other of above-mentioned part, the utility model relates to a hang basket structure for cast-in-place case roof beam of wave form steel web, this structure utilizes wave form steel web self rigidity and shear resistance, bears the load that comes from the template, has alleviateed the load of hanging the undertaking of basket, has optimized load distribution structure, makes the atress more reasonable, and it is more convenient to be under construction, reduces the cost of construction.
Drawings
Fig. 1 is a schematic view of the hanging basket of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
Fig. 3 is a schematic diagram of a part of the present invention.
In the figure: the support leg-1, the longitudinal beam-2, the cross beam-3, the flange plate PBL key-4, the hydraulic jack-5, the suspension rod-6, the connector-7, the joist-8, the inner and outer sliding beam-9, the beam box indoor bottom die anchor-10, the box beam flange plate bottom die anchor-11, the box beam bottom die anchor-12, the top die-13, the bottom die-14, the vertical rod-15, the connecting rod-16, the longitudinal rod-17, the front cross beam diagonal rod-18, the cross beam-19, the rear end guide wheel-20 and the front end guide wheel-21.
Detailed Description
The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings.
As shown in fig. 1 to 3, the utility model comprises a bearing main girder, a walking system, an anchoring system, a suspension system, a template system, a hoisting system and the like;
the bearing main truss comprises a plurality of vertical supporting legs 1, a horizontal cross beam 3 is arranged at the upper ends of the supporting legs 1, the cross beam 3 is vertically crossed with the supporting legs 1, a longitudinal beam 2 is fixed between the front supporting leg 1 and the rear supporting leg 1, a groove is formed between PBL keys 4 of upper flange plates of corrugated steel web plates, and the supporting legs 1 are arranged in the groove;
the walking system comprises a plurality of hydraulic jacks 5, the bases of the hydraulic jacks 5 are hinged with PBL (PBL key 4) holes of the upper flange plate of the corrugated steel web, piston rods of the hydraulic jacks are crossed with the supporting legs 1 through pin shafts, and the hanging basket can move when the piston rods in the hydraulic jacks 5 extend out;
the anchoring system comprises a box girder box chamber inner bottom mould anchor 10 and a box girder flange plate bottom mould anchor 11 which are fixed on a box girder concrete top plate, horizontal sliding girders are arranged on the front side and the rear side of the box girder concrete box girder, the box girder box chamber inner bottom mould anchor 10 and the lower end of the box girder flange plate bottom mould anchor 11 are fixed on the sliding girders through a connector 7; a bottom basket joist 8 is arranged on the lower side of the box girder concrete box girder, a box girder bottom die anchor 12 is arranged on the upper side of the joist 8, and the upper end of the box girder bottom die anchor 12 is fixed with an anchor device through a connector 7 by an anchor rod pre-embedded in the box girder concrete bottom plate;
the suspension system comprises a flange plate bottom die 14 front suspension, a box girder inner die front suspension, a box girder bottom die 14 front suspension and a box girder bottom die 14 rear suspension, a vertical suspension rod 6 is fixed on the upper side of the joist 8, the upper end of the suspension rod 6 is fixed with the cross beam 3, and the sliding beam is fixed with the corresponding suspension rod 6.
The hoisting system comprises hoisting frames, guide wheel sets and a winch, wherein each hoisting frame is a tripod, each tripod comprises an upright post 15, an inclined rod and a longitudinal rod 17, the upright post 15 is arranged in the middle of the longitudinal rod 17, the upright post 15 and the longitudinal rod 17 are vertically arranged, two ends of each inclined rod are respectively connected with the top end of the upright post 15 and the end part of the longitudinal rod 17, the hoisting frames are fixed on front and rear cross beams 3 of the main truss, two ends of each inclined rod of the front cross beam 3 are respectively connected with the top end of the upright post 15 and the front cross beam 3 to prevent the front cross beams from turning over, and the overhanging end parts of the two hoisting frames are provided with mounting seats 19 to enable the two hoisting; the guide wheel set comprises a rear end guide wheel 20 and a front end guide wheel 21, the rear end guide wheel 20 is fixed on a mounting seat 19 on the rear side of the main truss, the front end guide wheel 21 is fixed on the mounting seat 19 on the front end of the lifting frame, and the corrugated steel web is lifted through a winch.
It should be noted that the connector 7 in this application can be replaced by various types, and the common types are also many, for example, the connector 7 includes two threaded steel pipes, two threaded rod switches are screwed together, one of the two steel pipes is pre-embedded on the suspension member, the other lever is connected and fixed with the steel wire rope, and when suspension is required, the two steel pipes are screwed together, and suspension can be performed.
And placing the hanging basket on the corrugated steel webs, and arranging temporary transverse supports between the corrugated steel webs.
The main truss is a main stressed component of the hanging basket and is formed by connecting a bearing rod piece, a pin shaft, a connecting truss and a front upper cross beam 3; the corrugated steel web plate is used as a walking track through the upper flange plate, so that the integral forward movement of the main truss of the hanging basket is realized; the front suspension of the flange plate bottom die 14, the front suspension of the box girder inner die, the front suspension of the box girder bottom die 14 and the rear suspension of the box girder bottom die 14 are arranged to fix the hanging basket template.
Compared with the conventional basket hanging operation area, the basket hanging operation area is only limited by n-section corrugated plate installation, vertical mold, reinforcing bars, concrete pouring and prestress are all carried out on n sections, the construction operation surface is limited, and the period is long. The wave form steel web case roof beam is according to this utility model, adopts asynchronous method construction. The working area is expanded to three sections of n-1, n and n +1, the n +1 sections of corrugated plates are installed, the n sections of bottom plates are constructed, the n-1 sections of top plates are constructed, and the three working surfaces are constructed in a flowing water mode. The problems that the construction operation surface of the traditional hanging basket is limited and the period is long are solved. The working surface is safer and smoother; the difficult problem of traditional string basket top bottom plate operation mutual interference has been avoided, and the section construction cycle is saved more than 15% than traditional string basket.
Hang basket owner purlin little, this scheme is hung basket list and is overlapped dead weight 64t (including the template), compares traditional string basket list and overlaps 130t (including the template), alleviates dead weight 66 t. The dead weight is reduced, the material is saved, the forward movement is convenient, and the construction safety is improved.
The main bearing truss is that crossbeam 3 and landing leg 1 intersect perpendicularly, and crossbeam 3 sets up in landing leg 1 top, and longeron 2 (arrange in the same direction as the bridge) sets up between two landing legs 1, and landing leg 1 sets up in recess between 4 of corrugated steel web upper limb listrium PBL keys, plays the supporting role to whole string basket.
The traveling system takes the upper flange plate of the corrugated steel section web as a traveling track and is simultaneously jacked by two hydraulic jacks 5, so that the integral forward movement of the main truss of the cradle is realized. The base of the hydraulic jack 5 is hinged with the PBL key 4 of the upper flange plate of the corrugated steel web, the hole of the PBL key 4 of the upper flange plate of the corrugated steel web is used as a rear support, and the piston rod is hinged with the supporting leg 1 through a shaft pin. The hanging basket directly walks on the corrugated steel web flange plate, the forward movement is simple and convenient, the walking is safer and smoother, the template walking is more simple and easy to take place, the traditional hanging basket walking needs multiple times of reinforcement, dismantling and reinforcement of a rear anchor, and the forward movement of the template is realized through multiple times of reverse hanging points, so that the hanging basket is light, and can reach the forward movement once by jacking the hanging basket through the hydraulic jack 5, and the walking time of the hanging basket is saved.
The anchoring system comprises a box girder indoor bottom die anchor 10, a box girder flange plate bottom die anchor 11 and a box girder bottom die anchor 12, wherein the upper ends of the box girder indoor bottom die anchor 10 and the box girder flange plate bottom die anchor 11 are fixed on a box girder concrete top plate through an anchor for a pre-buried anchor rod, the lower end of the box girder indoor bottom die anchor 10 and the upper end of the box girder flange plate bottom die anchor 11 are connected to an inner sliding beam and an outer sliding beam 9 through a processed connector 7, the upper end of the box girder bottom die anchor 12 is fixed on a box girder concrete bottom plate through an anchor for a pre-buried anchor rod, and the lower end of the box girder bottom die anchor.
The suspension system comprises flange plate bottom die 14 front suspension, box girder inner die front suspension, box girder bottom die 14 front suspension and box girder bottom die 14 rear suspension. The upper end of the suspender 6 is fixed on the beam 3, and the lower end hangs the joist 8 and the inner and outer sliding beams 9 of the bottom basket through the processed connector 7. The hydraulic jack 5 is arranged between the adjusting beam and the front cross beam 3 and between the adjusting beam and the middle cross beam 3, and the height of the bottom basket and the height of the template can be freely adjusted.
The formwork system comprises a top formwork 13 and a bottom formwork 14, the top formwork 13 on the inner side of a web and flange formworks on two sides are of truss type supporting structures, two sliding beams are arranged, the front ends of the sliding beams are hung on a corrugated web plate, the rear ends of the sliding beams are anchored on a concrete top plate, the bottom formwork 14 also adopts a front-end hanging and rear-end anchoring structure, and the corrugated web plate is prevented from lateral displacement and bottom plate slurry leakage when the bottom formwork 14 is poured.
The utility model provides a corrugated steel web hang basket from the problem of great, construction cost height etc. through the combination of each other of above-mentioned part, the utility model relates to a hang basket structure for cast-in-place case roof beam of wave form steel web, this structure utilizes wave form steel web self rigidity and shear resistance, bears the load that comes from the template, has alleviateed the load of hanging the undertaking of basket, has optimized load distribution structure, makes the atress more reasonable, and it is more convenient to be under construction, reduces the cost of construction.
The utility model provides a corrugated steel web hang basket from the problem of great, construction cost height etc. through the combination of each other of above-mentioned part, the utility model relates to a hang basket structure for cast-in-place case roof beam of wave form steel web, this structure utilizes wave form steel web self rigidity and shear resistance, bears the load that comes from the template, has alleviateed the load of hanging the undertaking of basket, has optimized load distribution structure, makes the atress more reasonable, and it is more convenient to be under construction, reduces the cost of construction.

Claims (2)

1. The self-lifting type corrugated steel web cast-in-place box girder hanging basket is characterized by comprising a bearing main truss, a walking system, an anchoring system, a suspension system, a template system and a hoisting system;
the bearing main truss comprises a plurality of vertical supporting legs (1), a horizontal cross beam (3) is arranged at the upper ends of the supporting legs (1), the cross beam (3) is vertically crossed with the supporting legs (1), a longitudinal beam (2) is fixed between the front supporting leg and the rear supporting leg (1), a groove is formed between PBL keys (4) of upper flange plates of corrugated steel webs, and the supporting legs (1) are arranged in the groove;
the traveling system comprises a plurality of hydraulic jacks (5), wherein the base of each hydraulic jack (5) is hinged with a hole of a PBL key (4) of an upper flange plate of the corrugated steel web, a piston rod of each hydraulic jack is hinged with a support leg (1) through a pin shaft, and the piston rod in each hydraulic jack (5) can enable the cradle to move when extending out;
the anchoring system comprises a box girder box chamber inner bottom mould anchor (10) and a box girder flange plate bottom mould anchor (11) which are fixed on a box girder concrete top plate, wherein the front side and the rear side of the box girder concrete box girder are provided with horizontal sliding girders, the box girder box chamber inner bottom mould anchor (10) and the lower end of the box girder flange plate bottom mould anchor (11) are fixed on the sliding girders through connectors (7); a bottom basket joist (8) is arranged on the lower side of the box girder concrete box girder, a box girder bottom die anchor (12) is arranged on the upper side of the joist (8), and the upper end of the box girder bottom die anchor (12) is fixed with an anchor device through a connector (7) through an anchor rod pre-embedded in a box girder concrete bottom plate;
the suspension system comprises a flange plate bottom die (14) front suspension, a box girder inner die front suspension, a box girder bottom die (14) front suspension and a box girder bottom die (14) rear suspension, wherein a vertical suspension rod (6) is fixed on the upper side of a joist (8), the upper end of the suspension rod (6) is fixed with a cross beam (3), and a sliding beam is fixed with the corresponding suspension rod (6).
2. The self-lifting corrugated steel web cast-in-place box girder hanging basket according to claim 1, wherein the lifting system comprises a lifting frame, a guide wheel set and a winch, the lifting frame is a tripod, each tripod comprises an upright (15), an inclined rod and a longitudinal rod (17), the upright (15) is arranged in the middle of the longitudinal rod (17), the upright (15) and the longitudinal rod (17) are vertically arranged, two ends of the inclined rod are respectively connected with the top end of the upright (15) and the end part of the longitudinal rod (17), the lifting frame is fixed on a front cross beam (3) and a rear cross beam (3) of a main truss, two ends of the inclined rod of the front cross beam (3) are respectively connected with the top end of the upright (15) and the front cross beam (3) to prevent the inclined rods from turning sideways, and mounting seats (19) are arranged at the overhanging end parts of the two lifting frames to; the guide wheel set comprises a rear end guide wheel (20) and a front end guide wheel (21), the rear end guide wheel (20) is fixed on a mounting seat (19) on the rear side of the main truss, the front end guide wheel (21) is fixed on the mounting seat (19) at the front end of the lifting frame, and the corrugated steel web is lifted through a winch.
CN201921553079.5U 2019-09-18 2019-09-18 Self-lifting type corrugated steel web cast-in-situ box girder hanging basket Active CN211498526U (en)

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Application Number Priority Date Filing Date Title
CN201921553079.5U CN211498526U (en) 2019-09-18 2019-09-18 Self-lifting type corrugated steel web cast-in-situ box girder hanging basket

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112482234A (en) * 2020-12-04 2021-03-12 中铁七局集团有限公司 Self-hanging type asynchronous hanging basket
CN113417219A (en) * 2021-05-31 2021-09-21 中铁十二局集团有限公司 Hydraulic internal mold asynchronous traveling system and method for bridge suspension casting basket box chamber
CN113417219B (en) * 2021-05-31 2022-11-01 中铁十二局集团有限公司 Hydraulic internal mold asynchronous traveling system and method for bridge suspension casting basket box chamber

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112482234A (en) * 2020-12-04 2021-03-12 中铁七局集团有限公司 Self-hanging type asynchronous hanging basket
CN112482234B (en) * 2020-12-04 2022-02-25 中铁七局集团有限公司 Self-hanging type asynchronous hanging basket
CN113417219A (en) * 2021-05-31 2021-09-21 中铁十二局集团有限公司 Hydraulic internal mold asynchronous traveling system and method for bridge suspension casting basket box chamber
CN113417219B (en) * 2021-05-31 2022-11-01 中铁十二局集团有限公司 Hydraulic internal mold asynchronous traveling system and method for bridge suspension casting basket box chamber

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