CN211498922U - Box girder contact net foundation construction template - Google Patents

Box girder contact net foundation construction template Download PDF

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Publication number
CN211498922U
CN211498922U CN201921851403.1U CN201921851403U CN211498922U CN 211498922 U CN211498922 U CN 211498922U CN 201921851403 U CN201921851403 U CN 201921851403U CN 211498922 U CN211498922 U CN 211498922U
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China
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steel
wall
box girder
foundation construction
contact net
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CN201921851403.1U
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Chinese (zh)
Inventor
乐鹿峰
杨柏林
乐锋
郑春海
赵永洁
江莉莉
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Third Engineering Co Ltd of China Railway 17th Bureau Group Co Ltd
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Third Engineering Co Ltd of China Railway 17th Bureau Group Co Ltd
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Abstract

The utility model provides a box girder contact net foundation construction template, which belongs to the technical field of railway construction, and comprises a frame body formed by enclosing a plurality of steel templates, wherein the frame body is used for being erected on the periphery of reinforcing steel bars of a contact net foundation, and the outer wall of the frame body is used for being connected with three-wall reinforcing steel bars; the peripheral wall interval of framework is equipped with a plurality of notches that correspond with each roof beam body reinforcing bar position of case roof beam respectively, and the notch is used for strideing on locating the roof beam body reinforcing bar that corresponds with the position of this notch. The utility model provides a pair of box girder contact net foundation construction template compares and erects the template in three wall reinforcing bar peripheries among the prior art, needs the artifical mode of chiseling the concrete that removes three wall reinforcing bar tops after the concrete initial set, can directly pour and obtain the contact net basis, has reduced the chisel of unnecessary concrete and has removed the link, has improved work efficiency on the one hand, has practiced thrift the cost of labor, and on the other hand has guaranteed the appearance quality on contact net basis.

Description

Box girder contact net foundation construction template
Technical Field
The utility model belongs to the technical field of the railway construction, more specifically say, relate to a case roof beam contact net foundation construction template.
Background
At present, in the railway line construction process, according to the line requirement, contact networks are required to be arranged on a box girder at certain intervals. Because the contact net reinforcing steel bars are added on the basis of the beam body reinforcing steel bars of the contact net foundation, the reinforcing steel bars of the contact net foundation are very concentrated, and concrete construction is extremely difficult. The traditional construction method is that the template is erected outside the steel bars of the three walls (the protective wall, the vertical wall A and the vertical wall B), after the contact net foundation concrete is initially set, 2-3 persons are used for chiseling the positions of the three walls, and the construction method is low in efficiency, high in labor cost and poor in appearance quality.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a case roof beam contact net foundation construction template aims at solving the problem that basic net basis construction cost is high, appearance quality is poor among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the box girder contact net foundation construction template comprises a frame body formed by enclosing a plurality of steel templates, wherein the frame body is used for being erected on the periphery of reinforcing steel bars of a contact net foundation, and the outer wall of the frame body is used for being connected with three-wall reinforcing steel bars; the peripheral wall interval of framework is equipped with a plurality of notches that correspond with each roof beam body reinforcing bar position of case roof beam respectively, and the notch is used for strideing on locating the roof beam body reinforcing bar that corresponds with the position of this notch.
As another embodiment of the present application, a plurality of steel forms are detachably connected to each other.
As another embodiment of the present application, two ends of one of the steel molding plates are respectively provided with a sleeve or a first pin; two ends of the two steel templates which are respectively connected with the two ends of the steel template are respectively provided with a first bolt or a sleeve; the first bolt is inserted in the sleeve.
As another embodiment of the present application, the sleeve extends in the up-down direction; the first bolt is L-shaped, one end of the first bolt is fixedly connected with the outer wall of the steel template, and the other end of the first bolt is downwards inserted into the sleeve from the upper end of the sleeve.
As another embodiment of the application, one or more wedges are inserted between the outer wall of each steel form and the three-wall steel bars.
As another embodiment of the application, the wedge block is provided with a groove extending along the up-down direction, and the groove is used for being clamped and fixed with the three-wall reinforcing steel bars.
As another embodiment of the application, a plurality of slots are arranged on the outer wall of each steel template at intervals along the length direction of the steel template, each slot corresponds to one of the three-wall steel bars, and the wedge blocks are inserted into the slots.
As another embodiment of this application, the top surface of each steel form all is the rigid coupling has the lug.
As another embodiment of the application, the height of the notch is more than or equal to that of the beam body steel bar; the width of the notch is 4-6 mm larger than the diameter of the beam body steel bar.
As another embodiment of the present application, the shape of the notch is an isosceles trapezoid, and the caliber of the upper end of the notch is smaller than that of the lower end.
The utility model provides a pair of box girder contact net foundation construction template's beneficial effect lies in: compared with the prior art, the utility model discloses a box girder contact net foundation construction template, through set up a plurality of notches that are used for striding over on the roof beam body reinforcing bar of box girder at the framework perisporium, make the roof beam body reinforcing bar can pass the steel form, thereby can make the inside of framework surround the periphery of the strengthening reinforcement bar of contact net foundation, because the outer wall of framework is fixedly connected with three wall reinforcing bars, can avoid the concrete form expansion of pouring process, guarantee the pouring quality;
with the inside concreting of framework and treat the concrete initial set back, demolish the framework and be connected with three wall reinforcing bars, upwards extract the framework and can obtain the contact net basis that the construction was accomplished, compare in prior art with the template stand at three wall reinforcing bar periphery, need the artifical mode of chiseling the concrete that removes three wall reinforcing bars tops after the concrete initial set, can directly pour and obtain the contact net basis, the chiseling link of unnecessary concrete has been reduced, on the one hand, work efficiency is improved, the labor cost is saved, on the other hand, the appearance quality of contact net basis has been guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of construction and installation of a box girder contact network foundation construction template provided by an embodiment of the utility model;
fig. 2 is a schematic structural view of a box girder contact network foundation construction template provided by an embodiment of the present invention;
FIG. 3 is an enlarged structural view at A in FIG. 2;
fig. 4 is a schematic view of a connection structure between steel templates used in the embodiment of the present invention.
In the figure: 1. a frame body; 10. a steel form; 100. a notch; 101. a sleeve; 102. a first latch; 103. a slot; 104. lifting lugs; 105. a second bolt; 11. a wedge block; 2. a contact net foundation; 20. reinforcing steel bars of the beam body; 30. three-wall steel bars; 31. a protective wall; 32. a vertical wall A; 33. and a vertical wall B.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1 and fig. 2 together, now, the basic construction template of the box girder contact system provided by the present invention will be described. The box girder contact net foundation construction template comprises a frame body 1 formed by enclosing a plurality of steel templates 10, wherein the frame body 1 is used for being erected on the periphery of reinforcing steel bars of a contact net foundation 2, and the outer wall of the frame body 1 is used for being connected with three-wall reinforcing steel bars 30; a plurality of notches 100 are provided at intervals in the circumferential wall of the frame 1 so as to correspond to the positions of the respective beam reinforcements 20 of the box girder, and the notches 100 are provided so as to straddle the beam reinforcements 20 corresponding to the positions of the notches 100.
The utility model provides a pair of box girder contact net foundation construction template's use mode: through the test of using different materials (wood veneer, tectorial membrane board, multiply wood, two-sided compound plywood and steel sheet), it is obtained and uses the steel sheet that thickness is 1cm to satisfy construction requirement and erect the condition most, and the operation degree of difficulty is little, pours effectually, and can compromise the contact net foundation construction that is used for contact net foundation construction three kinds of structures QJ-A, QJ-B, QJ-C commonly used.
It should be understood that the shape and size of the frame 1 surrounded by the plurality of steel templates 10 are matched with the size of the contact network foundation 2 to be poured, after the reinforcing steel bars of the contact network foundation 2 are built on the basis of the three-wall steel bars 30, the frame 1 is erected on the periphery of the reinforcing steel bars, marking or other forms of marking needs to be performed on the pouring position of the contact network foundation 2 in advance, then the frame 1 is aligned with the marking position, and each notch 100 is erected on the beam body steel bar 20 corresponding to the position of the notch, so that the beam body steel bar 20 can be avoided;
the erected frame body 1 is positioned at the inner periphery of three walls (a protective wall 31, a vertical wall A32 and a vertical wall B33), and the outer peripheral wall of the frame body 1 is fixedly connected with three wall steel bars 30 so as to prevent concrete from expanding in the pouring process; pouring after the fixation is finished, and then dismantling the frame body 1 after the concrete is initially set;
when the frame body 1 is detached, the frame body 1 is disconnected from the three-wall steel bar 30, and then the frame body 1 is pulled out upwards by using the hoisting equipment.
Compared with the prior art, the utility model provides a box girder contact net foundation construction template, through set up a plurality of notches 100 that are used for striding over on the roof beam body reinforcing bar 20 of box girder at framework 1 perisporium, make roof beam body reinforcing bar 20 can pass steel form 10, thereby can make the inside reinforcing bar that surrounds contact net foundation 2 of framework 1, because the outer wall of framework 1 is fixed connection with three wall reinforcing bars 30, can avoid the casting process concrete mould that rises, guarantee the pouring quality;
with 1 inside concreting of framework and treat the concrete initial set back, demolish framework 1 and three wall reinforcing bar 30's connection, upwards extract framework 1 and can obtain the contact net basis 2 that the construction was accomplished, compare in prior art with the template stand in three wall reinforcing bar 30 periphery, need the mode of the artifical concrete of chiseling three wall reinforcing bar 30 tops behind the concrete initial set, can directly pour and obtain contact net basis 2, the chiseling link of unnecessary concrete has been reduced, on the one hand, work efficiency is improved, the cost of labor has been practiced thrift, on the other hand has guaranteed contact net basis 2's appearance quality.
As a specific embodiment of a pair of box girder contact net foundation construction template, please refer to fig. 2 and fig. 3 together, can dismantle the connection between a plurality of steel form 10. When a formwork is erected, the plurality of steel formworks 10 are erected at the designated positions respectively and independently, and the adjacent steel formworks 10 are connected; when the form is disassembled after the pouring is finished, the connection among the steel formworks 10 is disassembled, and then each steel formwork 10 is independently disassembled; the problem of the operation degree of difficulty is big when can solving to whole framework 1 and erecting or dismantling when formwork or form removal, make formwork, form removal simple, convenient, easy to operate.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2 and fig. 3, wherein a sleeve 101 or a first pin 102 is respectively disposed at two ends of one of the steel forms 10; two ends of two steel templates 10 respectively connected with two ends of the steel template 10 are respectively provided with a first bolt 102 or a sleeve 101; the first plug 102 is inserted into the sleeve 101. The first bolt 102 is inserted into the sleeve 101 to ensure reliable connection between the adjacent steel templates 10, so that the frame body 1 is stable, the structure is simple, and the assembly and disassembly are convenient.
In this embodiment, two ends of one steel form 10 are both provided with the sleeve 101, or two ends are both provided with the first pin 102, or one end is provided with the sleeve 101, and the other end is provided with the first pin 102, so that the connection ends of two adjacent steel forms are only required to be the sleeve 101 and the first pin 102, respectively, so as to realize the insertion relationship between the first pin 102 and the sleeve 101; it should be noted that, when one end of one steel form is the sleeve 101, and the other end is the first pin 102, the first pin 102 should be inserted from the lower end of the sleeve 101 on the adjacent steel form 10 correspondingly inserted into the first pin, so as to ensure that the steel form 10 can be pulled out vertically and upwards smoothly.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 4, two ends of each steel form 10 are respectively provided with a sleeve 101, and the adjacent steel forms 10 are respectively inserted into the two sleeves 101 of the adjacent ends through the second pins 105 to realize connection. The erection and disassembly sequence of each steel template 10 is not limited, the connection between the steel templates 10 is simple, the disassembly and assembly are convenient, the erection and disassembly time of the frame body 1 is saved, and the working efficiency is high.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, the sleeve 101 extends in the up-down direction; the first pin 102 is L-shaped, one end of which is fixedly connected to the outer wall of the steel form 10, and the other end of which is inserted into the sleeve 101 from the upper end of the sleeve 101. When the formwork is erected, firstly erecting the steel formwork 10 provided with the sleeve 101, then erecting the steel formwork 10 provided with the first bolt 102, and simultaneously inserting the first bolt 102 into the sleeve 101 to complete connection; when the mould is disassembled, firstly, the steel moulding plate 10 provided with the first bolt 102 is pulled upwards by using hoisting equipment, and then the steel moulding plate 10 provided with the sleeve 101 is disassembled; the first pin 102 and the sleeve 101 are respectively and fixedly connected to different steel formworks 10, and the connection between the adjacent steel formworks 10 does not need to use an independent connecting piece, so that the loss of the connecting piece can be avoided.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, one or more wedge blocks 11 are inserted between the outer wall of each steel form 10 and the three-wall steel bars 30. Through cartridge voussoir 11 between steel form 10 and three wall reinforcing bar 30, the quantity of voussoir 11 is decided according to the length of steel form 10 to increase the rigidity of framework 1, avoid the concrete placement in-process to take place the mould that rises, guarantee the outward appearance of contact net basis 2 and pour the quality.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, a groove extending in the up-down direction is disposed on the wedge 11, and the groove is used for being fastened with the three-wall reinforcing steel bar 30. The peripheral wall of the groove and the three-wall steel bar 30 are attached and clamped, so that the stability and reliability of the support of the wedge block 11 on the steel template 10 can be guaranteed, the condition that the wedge block 11 falls off due to the sliding between the wedge block 11 and the three-wall steel bar 30 is avoided, and the reliability of the support of the wedge block 11 on the steel template 10 is improved.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, a plurality of slots 103 are disposed on the outer wall of each steel form 10 along the length direction thereof at intervals, each slot 103 corresponds to one of the three-wall steel bars 30, and the wedge 11 is inserted into the slot 103. The slots 103 can position the wedge 11, avoid dislocation or falling of the wedge 11, and improve the stability and reliability of the wedge 11 in supporting the steel form 10.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2, a lifting lug 104 is fixedly connected to the top surface of each steel form 10. Articulate through lifting device and lug 104, conveniently hoist steel form 10, easy operation, it is convenient, can improve formwork and form removal efficiency.
As a specific implementation manner of the embodiment of the present invention, the height of the notch 100 is greater than or equal to the height of the beam body steel bar 20; the width of the notch 100 is 4 mm-6 mm larger than the diameter of the beam body reinforcing steel bar 20. Guarantee that notch 100 can stride on roof beam body reinforcing bar 20, can avoid simultaneously that the contact is interfered between notch 100 and the roof beam body reinforcing bar 20, conveniently dismantle steel form 10 after the concrete initial set.
As a specific implementation manner of the embodiment of the present invention, the shape of the slot 100 is an isosceles trapezoid, and the upper end aperture of the slot 100 is smaller than the lower end aperture. Because concrete can flow into in the notch 100 and take place to solidify when concrete placement, consequently set up notch 100 to the upper portion narrow, the wide trapezium structure in lower part, set up the draft on notch 100 equivalently, make things convenient for the work of demolising of steel form 10.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a box girder contact net foundation construction template which characterized in that: the steel formwork framework comprises a framework body formed by enclosing a plurality of steel formworks, wherein the framework body is used for being erected on the periphery of reinforcing steel bars of a contact net foundation, and the outer wall of the framework body is used for being connected with three-wall reinforcing steel bars; the peripheral wall of the frame body is provided with a plurality of notches at intervals, the notches correspond to the positions of the beam body steel bars of the box girder respectively, and the notches are used for being arranged on the beam body steel bars corresponding to the positions of the notches in a spanning mode.
2. The box girder overhead line system foundation construction formwork of claim 1, wherein: and the steel templates are detachably connected.
3. The box girder overhead line system foundation construction formwork of claim 2, wherein: two ends of one of the steel templates are respectively provided with a sleeve or a first bolt; two ends of the two steel templates which are respectively connected with the two ends of the steel template are respectively provided with a first bolt or a sleeve; the first bolt is inserted into the sleeve.
4. The box girder overhead line system foundation construction formwork of claim 3, wherein: the sleeve extends along the up-down direction; the first bolt is L-shaped, one end of the first bolt is fixedly connected with the outer wall of the steel template, and the other end of the first bolt is downwards inserted into the sleeve from the upper end of the sleeve.
5. The box girder overhead line system foundation construction formwork of claim 1, wherein: one or more wedges are inserted between the outer wall of each steel template and the three-wall steel bars.
6. The box girder overhead line system foundation construction formwork of claim 5, wherein: the wedge block is provided with a groove extending along the vertical direction, and the groove is used for being clamped and fixed with the three-wall steel bar.
7. The box girder overhead line system foundation construction formwork of claim 6, wherein: and a plurality of slots are formed in the outer wall of each steel template at intervals along the length direction of the steel template, each slot corresponds to one of the three-wall reinforcing steel bars, and the wedge blocks are inserted into the slots.
8. The box girder overhead line system foundation construction formwork of any one of claims 1 to 7, wherein: each the equal rigid coupling of top surface of steel form has the lug.
9. The box girder overhead line system foundation construction formwork of claim 1, wherein: the height of the notch is more than or equal to that of the beam body steel bar; the width of the notch is 4-6 mm larger than the diameter of the beam body steel bar.
10. The box girder overhead line system foundation construction formwork of claim 1, wherein: the shape of the notch is isosceles trapezoid, and the caliber of the upper end of the notch is smaller than that of the lower end of the notch.
CN201921851403.1U 2019-10-30 2019-10-30 Box girder contact net foundation construction template Active CN211498922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921851403.1U CN211498922U (en) 2019-10-30 2019-10-30 Box girder contact net foundation construction template

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921851403.1U CN211498922U (en) 2019-10-30 2019-10-30 Box girder contact net foundation construction template

Publications (1)

Publication Number Publication Date
CN211498922U true CN211498922U (en) 2020-09-15

Family

ID=72408143

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921851403.1U Active CN211498922U (en) 2019-10-30 2019-10-30 Box girder contact net foundation construction template

Country Status (1)

Country Link
CN (1) CN211498922U (en)

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