CN111516137A - Hydraulic integral movable prefabricated box girder web plate reinforcing steel bar jig frame and construction method - Google Patents

Hydraulic integral movable prefabricated box girder web plate reinforcing steel bar jig frame and construction method Download PDF

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Publication number
CN111516137A
CN111516137A CN202010348710.9A CN202010348710A CN111516137A CN 111516137 A CN111516137 A CN 111516137A CN 202010348710 A CN202010348710 A CN 202010348710A CN 111516137 A CN111516137 A CN 111516137A
Authority
CN
China
Prior art keywords
steel bar
rod
jig frame
jacking
bar jig
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010348710.9A
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Chinese (zh)
Inventor
王庆钢
陈志达
王士晓
欧阳毅
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China First Metallurgical Group Co Ltd
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China First Metallurgical Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by China First Metallurgical Group Co Ltd filed Critical China First Metallurgical Group Co Ltd
Priority to CN202010348710.9A priority Critical patent/CN111516137A/en
Publication of CN111516137A publication Critical patent/CN111516137A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/04Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention relates to a hydraulic integral movable precast box girder web plate reinforcing steel bar jig frame and a construction method, wherein the hydraulic integral movable precast box girder web plate reinforcing steel bar jig frame comprises a walking trolley, wherein a jacking base is arranged on the walking trolley, and the jacking base can slide along the walking trolley in a reciprocating manner; the pedestal is arranged on one side of the traveling steel rail, a pull rod is arranged on the pedestal, one end of the pull rod is embedded in the pedestal, the other end of the pull rod penetrates out of the pedestal and extends to the outside of the pedestal, and a fastening gasket and a fastening nut are arranged on the pull rod; one end of the vertical jacking rod is connected to the jacking base, and a carrying frame is arranged at the other end of the vertical jacking rod; one end of the horizontal jacking rod is fixedly connected to the walking trolley, and the other end of the horizontal jacking rod is correspondingly connected to the jacking base; and a plurality of support rods. The integral movement of the steel bar jig frame is realized through structures such as the jacking rod, and the problems that the steel bar jig frame cannot move, a special field needs to be occupied for arranging the fixed steel bar jig frame, a gantry crane is occupied and the like in the method for fixing the steel bar jig frame are solved.

Description

Hydraulic integral movable prefabricated box girder web plate reinforcing steel bar jig frame and construction method
Technical Field
The invention relates to the technical field of highway project bridge construction, in particular to a hydraulic integral movable precast box girder web plate reinforcing steel bar jig frame and a construction method.
Background
In the construction of highway bridges, the construction is generally carried out by adopting a prefabricated box girder mode. In the process of prefabricating the box girder, in order to overcome the problems that the longitudinal and transverse spacing is not uniform, the steel bars are not accurately positioned, the qualified rate of a steel bar protective layer does not reach the standard and the like in the installation process of the steel bars, a fixed steel bar jig frame method is adopted for carrying out standardized installation, namely, a web steel bar cage is installed on a fixed steel bar jig frame, and a gantry crane is used for hoisting the steel bar cage to a pedestal after the steel bar cage is qualified. The method has the advantages of standardized production and high efficiency, but has the following disadvantages: firstly, a special field is occupied to arrange a steel bar jig; secondly, a gantry crane is occupied to hoist the reinforcement cage, and the reasonable use of the gantry crane is restricted; thirdly, certain potential safety hazards exist in the hoisting process of the reinforcement cage.
Disclosure of Invention
Aiming at the problems, the hydraulic integral movable precast box girder web plate reinforcing steel bar jig frame and the construction method are provided, and the technical defects existing in the method for fixing the reinforcing steel bar jig frame are effectively overcome.
The beneficial effect of above-mentioned scheme is:
1) the integral movement of the steel bar jig frame is realized through structures such as the jacking rod, and the problems that the steel bar jig frame cannot move, a special field needs to be occupied for arranging the fixed steel bar jig frame, a gantry crane is occupied and the like in the method for fixing the steel bar jig frame are solved;
2) the integral movement of the steel bar jig frame is realized through structures such as the jacking rod, so that potential safety hazards of gantry crane lifting existing in a method for fixing the steel bar jig frame are effectively avoided;
4) the structure and the construction method provided by the invention can be applied to the production of the T-beam prefabricated steel bar jig.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic integrally-moving precast box girder web steel reinforcement jig provided in an embodiment of the present invention;
fig. 2 is a construction schematic diagram of a hydraulic integrally-moving precast box girder web steel reinforcement jig provided in an embodiment of the invention.
In the drawings: 1. a traveling carriage; 2. jacking a base; 3. a pedestal; 4. a pull rod; 5. fastening a gasket; 6. fastening a nut; 7. a vertical jacking rod; 8. a steel bar jig frame; 9. carrying a rack; 10. a horizontal jacking rod; 11. a support bar; 12. and a horizontal support frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
As shown in fig. 1 and 2, a hydraulic integral movable precast box girder web reinforcing steel jig provided in an embodiment of the present invention includes: the steel rail walking device comprises a walking trolley 1 capable of walking along a walking steel rail in a reciprocating mode, wherein a jacking base 2 is arranged on the walking trolley 1, and the jacking base 2 can slide in a reciprocating mode along the width direction of the walking trolley 1; the base 3 is arranged on one side of the traveling steel rail, a plurality of pull rods 4 are horizontally arranged on the base 3 at intervals along the front and back of the length direction of the base 3, one ends of the pull rods 4 are embedded in the base 3, the other ends of the pull rods 4 penetrate through the base 3 and extend to the outside of the base 3, and fastening gaskets 5 and fastening nuts 6 are arranged on the pull rods 4; one end of the vertical jacking rod 7 is fixedly connected to the jacking base 2, and the other end of the vertical jacking rod 7 is provided with a carrying frame 9 for carrying a reinforcing steel bar jig frame 8; one end of the horizontal jacking rod 10 is fixedly connected to the walking trolley 1, and the other end of the horizontal jacking rod 10 is correspondingly connected to the jacking base 2; and a plurality of support rods 11, one end of each support rod 11 can be abutted against the steel bar jig 8, and the other end of each support rod 11 can be abutted against the ground.
The vertical lifting rod 7, the horizontal lifting rod 10 and the support rod 11 are all hydraulic jacks.
The construction method for carrying out construction by utilizing the hydraulic integrally-moving type precast box girder web plate steel bar jig comprises the following steps:
1) moving the steel bar jig frame 8 to a specified position by using the walking trolley 1;
2) adjusting the height of a steel bar jig frame 8 by using a vertical jacking rod 7, so that a bolt hole in a cross beam at the lower part of the steel bar jig frame 8 is aligned with the pull rod 4;
3) the steel bar jig 8 is slowly pushed to the pedestal 3 by the horizontal lifting rod 10, so that a bolt hole on a lower cross beam of the steel bar jig penetrates into the pull rod 4, then the fastening gasket 5 is arranged on the pull rod 4 in a penetrating manner, the fastening nut 6 is fastened on the pull rod 4, and then the support rod 11 falls down to stably fix the steel bar jig 8 beside the pedestal 3;
4) web steel bars are arranged on a horizontal support frame 12 in the steel bar jig 8, and a steel bar framework is bound;
5) after the acceptance in the step 4 is qualified, the supporting rod 11 can be firstly retracted, then the fastening nut 6 and the fastening gasket 5 are sequentially disassembled, the horizontal jacking rod 10 retracts to separate the steel bar jig frame 8 from the pull rod 4, and the vertical jacking rod 7 retracts to separate the horizontal supporting frame 12 from the steel bar framework;
6) and removing the steel reinforcement framework, and repeating the steps 1) to 5).
The integral movement of the steel bar jig frame is realized through structures such as the jacking rod, and the problems that the steel bar jig frame cannot move, a special field needs to be occupied for arranging the fixed steel bar jig frame, a gantry crane is occupied and the like in the method for fixing the steel bar jig frame are solved.
According to the invention, the integral movement of the steel bar jig frame is realized through structures such as the jacking rod, so that potential safety hazards of hoisting of a gantry crane in a method for fixing the steel bar jig frame are effectively avoided.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims (4)

1. The utility model provides a portable precast box girder web reinforcing bar bed-jig of hydraulic pressure whole which characterized in that includes:
the steel rail walking trolley comprises a walking trolley (1) capable of walking along a walking steel rail in a reciprocating mode, wherein a jacking base (2) is arranged on the walking trolley (1), and the jacking base (2) can slide in a reciprocating mode along the width direction of the walking trolley (1);
the base (3) is arranged on one side of the traveling steel rail, a plurality of pull rods (4) are arranged on the base (3), one ends of the pull rods (4) are embedded in the base (3), the other ends of the pull rods (4) penetrate through the base (3) and extend to the outside of the base (3), and fastening gaskets (5) and fastening nuts (6) are arranged on the pull rods (4);
one end of the vertical jacking rod (7) is fixedly connected to the jacking base (2), and the other end of the vertical jacking rod (7) is provided with a carrying frame (9) for carrying a reinforcing steel bar jig frame (8);
one end of the horizontal jacking rod (10) is fixedly connected to the walking trolley (1), and the other end of the horizontal jacking rod (10) is correspondingly connected to the jacking base (2); and
the steel bar clamping fixture comprises a plurality of supporting rods (11), one ends of the supporting rods (11) can be abutted to the steel bar clamping fixture (8), and the other ends of the supporting rods (11) can be abutted to the ground.
2. The hydraulic integrally moving precast box girder web steel reinforcement jig frame according to claim 1, characterized in that the tie rods (4) are horizontally arranged at a left and right interval.
3. The hydraulic integral moving precast box girder web steel reinforcement jig of claim 1, characterized in that the vertical lifting rod (7), the horizontal lifting rod (10) and the support rod (11) are hydraulic jacks.
4. A construction method of a hydraulic integral movable precast box girder web steel reinforcement jig frame according to any one of claims 1 to 3, which is characterized by comprising the following steps:
1) moving the steel bar jig frame (8) to a specified position by using the walking trolley (1);
2) adjusting the height of the steel bar jig frame (8) by using a vertical jacking rod (7) so that a bolt hole in a beam at the lower part of the steel bar jig frame (8) is aligned with the pull rod (4);
3) the steel bar jig frame (8) is slowly pushed to the pedestal (3) by a water flat top lifting rod (10), a bolt hole on a lower cross beam of the steel bar jig frame penetrates into the pull rod (4), then a fastening gasket (5) penetrates through the pull rod (4), then a fastening nut (6) is fastened on the pull rod (4), and then the support rod (11) falls down to stably fix the steel bar jig frame (8) beside the pedestal (3);
4) web steel bars are installed on a horizontal support frame (12) in the steel bar jig frame (8) and a steel bar framework is bound;
5) after the acceptance in the step 4) is qualified, the supporting rod (11) can be firstly retracted, then the fastening nut (6) and the fastening gasket (5) are sequentially detached, the horizontal jacking rod (10) retracts to separate the steel bar jig frame (8) from the pull rod (4), and the vertical jacking rod (7) retracts to separate the horizontal supporting frame (12) from the steel bar framework;
6) and removing the steel bar framework, and repeating the steps 1) to 5).
CN202010348710.9A 2020-04-28 2020-04-28 Hydraulic integral movable prefabricated box girder web plate reinforcing steel bar jig frame and construction method Pending CN111516137A (en)

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Application Number Priority Date Filing Date Title
CN202010348710.9A CN111516137A (en) 2020-04-28 2020-04-28 Hydraulic integral movable prefabricated box girder web plate reinforcing steel bar jig frame and construction method

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Application Number Priority Date Filing Date Title
CN202010348710.9A CN111516137A (en) 2020-04-28 2020-04-28 Hydraulic integral movable prefabricated box girder web plate reinforcing steel bar jig frame and construction method

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CN111516137A true CN111516137A (en) 2020-08-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113428320A (en) * 2021-07-01 2021-09-24 中船澄西船舶修造有限公司 High-safety jig frame peripheral moving ladder with good adaptability and use method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104859048A (en) * 2015-06-19 2015-08-26 中交一公局第五工程有限公司 Self-propelled integral hydraulic precast box beam formwork device
CN207432460U (en) * 2017-09-30 2018-06-01 中交路桥建设有限公司 A kind of prefabricated case beam moulding bed
CN109267485A (en) * 2018-08-27 2019-01-25 宁波工程学院 A kind of hydraulic-driven mould bases of steel bar framework of box beam positioning production
CN110549487A (en) * 2019-08-21 2019-12-10 中国一冶集团有限公司 Movable precast box girder web plate steel bar positioning jig frame and construction method thereof
CN110947883A (en) * 2019-12-30 2020-04-03 中铁四局集团机电设备安装有限公司 A quick ligature positioner of prefabricated T beam bottom web steel reinforcement cage for public road bridge roof beam

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104859048A (en) * 2015-06-19 2015-08-26 中交一公局第五工程有限公司 Self-propelled integral hydraulic precast box beam formwork device
CN207432460U (en) * 2017-09-30 2018-06-01 中交路桥建设有限公司 A kind of prefabricated case beam moulding bed
CN109267485A (en) * 2018-08-27 2019-01-25 宁波工程学院 A kind of hydraulic-driven mould bases of steel bar framework of box beam positioning production
CN110549487A (en) * 2019-08-21 2019-12-10 中国一冶集团有限公司 Movable precast box girder web plate steel bar positioning jig frame and construction method thereof
CN110947883A (en) * 2019-12-30 2020-04-03 中铁四局集团机电设备安装有限公司 A quick ligature positioner of prefabricated T beam bottom web steel reinforcement cage for public road bridge roof beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113428320A (en) * 2021-07-01 2021-09-24 中船澄西船舶修造有限公司 High-safety jig frame peripheral moving ladder with good adaptability and use method
CN113428320B (en) * 2021-07-01 2022-05-20 中船澄西船舶修造有限公司 High-safety jig frame peripheral moving ladder with good adaptability and use method

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Application publication date: 20200811