CN211772881U

CN211772881U - Prefabricated box girder template

Info

Publication number: CN211772881U
Application number: CN201922374782.6U
Authority: CN
Inventors: 余小凯; 陈江平; 陈俊波; 李远明; 董治华; 金保通; 徐华平
Original assignee: Jiangxi Province Luqiao Engineering Group Co ltd
Current assignee: Jiangxi Province Luqiao Engineering Group Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-27
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to the technical field of box girder prefabrication, in particular to a prefabricated box girder template, which comprises a base, a left outer template, a right outer template and an inner membrane, wherein the clamping plates at the lower ends of the left outer template and the right outer template are respectively clamped on a bottom plate and are fixed through first screws, and are provided with a supporting beam and a pull rod, so that the stability of the prefabricated box girder template is improved, an upper die and a lower die in the inner membrane are respectively clamped at two ends of the inner membrane and are fixed through second screws, the inner membrane is arranged in the left outer template and the right outer template, when the prefabricated box girder template needs to be disassembled, the pull rod, the supporting beam, the left outer template and the right outer template are sequentially taken down, the second screws are twisted, so that the upper die and the lower die are separated from an inner membrane, lead screws in the inner membrane are rotated, the distance between the upper die and the lower die is shortened, the upper die and the lower die are conveniently taken out, the inner membrane is prevented from damaging the precast box girder, and the precast box girder is convenient to dismantle and use.

Description

Prefabricated box girder template

Technical Field

The utility model relates to a prefabricated technical field of case roof beam, in particular to prefabricated case roof beam template.

Background

The box girder is one of middle girders of bridge engineering, the interior of the box girder is hollow, flanges are arranged on two sides of the upper part of the box girder and are similar to boxes, so that the box girder is named, the types of the box girder are divided into a single box, a plurality of boxes and the like, a reinforced concrete box girder is taken as one of important structures in the bridge engineering, and the box girder is divided into a prefabricated box girder and a cast-in-place box girder according to a concrete pouring mode, wherein the cast-in-place box girder is directly poured in a construction site, the prefabricated box girder is prefabricated in an independent site in advance, and then the prefabricated box girder is hoisted after the lower part structure of the bridge is finished, so that the construction cross interference can be effectively avoided, the engineering progress is;

common template schemes for pouring the precast box girder comprise a wood template, a common combined steel template, a customized steel template and the like, the wood template scheme is simple and flexible, but the rigidity of the template is poor, the turnover frequency is less, the slab staggering and the joint seam are more, the template assembly and disassembly efficiency is low, the appearance quality of the concrete can not be ensured, the template is only suitable for small bridge engineering with lower requirements, the rigidity of the common combined steel template is higher than that of a wood template, but the templates with various specifications are required to be combined and matched, the assembly difficulty is high, the template assembly and disassembly efficiency is still low, the number of joints is large, the appearance quality of concrete cannot be ensured, the method cannot be applied to large bridge engineering with short construction period, the one-time investment cost of the scheme of shaping the steel templates is high, the template has good integrity and high rigidity, and the template can be assembled and disassembled by adopting mechanical assistance, so that the construction efficiency is greatly improved, and therefore, the scheme of shaping the steel template is most frequently used when the box girder is actually prefabricated;

but at the in-service operation in-process, pour the completion back to prefabricated box girder, need demolish the template one by one, nevertheless when demolising the interior template, because interior lamina membranacea adopts the integrated design mostly, often there is the problem of difficult demolising, produces destruction to pouring easily, is not convenient for use, and because the volume of prefabricated box girder is great, current template when pouring, often has the problem that stability is not enough, influences the quality of pouring.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated case roof beam template to the inner membrance is not convenient for demolish and the relatively poor problem of stability that proposes in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: including base, left exterior sheathing, right exterior sheathing and inner membrance, the bottom plate is installed to the upper surface intermediate position of base, a left side exterior sheathing with the lower extreme of right exterior sheathing all is equipped with the cardboard, the cardboard joint is in the both sides of bottom plate, a left side exterior sheathing with be equipped with the pull rod between the upper end of right side exterior sheathing, the upper surface of base is located the equal fixed mounting in both sides of bottom plate has the plug socket, it has a supporting beam to peg graft in the inside of plug socket, the inner membrance is located a left side exterior sheathing with the inside and the middle position of right exterior sheathing.

Preferably, the bottom plate is of a cross structure, the clamping plate is of a U-shaped structure, first threaded holes are uniformly formed in the two sides of the bottom plate, first screws are connected to the first threaded holes in an internal thread mode, and the outer side of each first screw penetrates through the clamping plate and extends to the outer portion of the clamping plate.

Preferably, the supporting beam comprises a supporting plate, the lower end of the supporting plate is inserted into the inserting seat, a transverse plate is fixedly mounted at the upper end of the supporting plate, inclined struts are fixedly mounted on two sides of the transverse plate, the lower ends of the inclined struts are fixedly mounted in the middle positions of the two sides of the supporting plate, and the upper surface of the transverse plate is in contact with the lower surfaces of the left outer template and the right outer template.

Preferably, the two ends of the pull rod penetrate through the left outer template and the right outer template respectively, and nuts are connected to the two ends of the pull rod in a threaded mode.

Preferably, the inner membrance includes the inboard membrane, goes up mould and lower mould, go up the mould with the second screw hole has all been opened to the both sides of lower mould, second screw hole female connection has the second screw, the one end of second screw all runs through go up the mould with the lower mould and with inboard membrane looks threaded connection, go up the mould with fixed mounting has the lead screw between the lower mould.

Preferably, the upper die and the lower die are both of a convex structure, and the length of the upper die is greater than that of the lower die.

Preferably, the number of the inner side films is two, the inner side films are of arc structures, and two ends of the inner side films are respectively clamped on one sides of the upper die and the lower die.

The utility model discloses a technological effect and advantage:

1. the inner membrane in the utility model adopts the inner membrane, the upper mould and the lower mould to carry out combined design, after pouring is completed, the upper mould and the lower mould in the inner membrane can be conveniently removed through the lead screw, thereby being convenient for removing the inner membrane, being convenient for use, greatly reducing the removing difficulty of the inner membrane and avoiding damaging a casting piece in the removing process;

2. the utility model discloses in through being equipped with supporting beam, cardboard and pull rod, effectual left exterior sheathing and right exterior sheathing are fixed, avoid leading to in the pouring process the utility model discloses the dislocation increases the utility model discloses a stability, and then improves the quality of prefabricated case roof beam, improves the pouring quality;

3. the utility model discloses be convenient for make up, convenient used repeatedly, the convenient dismantlement, very big improvement the production progress and the production quality of prefabricated case roof beam.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a schematic structural view of the middle upper membrane of the present invention.

Fig. 4 is a schematic structural diagram of the middle bottom plate of the present invention.

Fig. 5 is a front sectional view of the inner membrane of the present invention.

In the figure: 1. a base; 2. a left outer template; 3. a right outer template; 4. an inner membrane; 5. a base plate; 6. clamping a plate; 7. a pull rod; 8. a socket; 9. a support beam; 10. a first threaded hole; 11. a first screw; 12. a support plate; 13. a transverse plate; 14. bracing; 15. a nut; 16. an inner membrane; 17. an upper die; 18. a lower die; 19. a second threaded hole; 20. a second screw; 21. and a screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a precast box girder template as shown in figures 1-5, including base 1, left outer formword 2, right outer formword 3 and inner membrance 4, bottom plate 5 is installed to the upper surface intermediate position of base 1, the lower extreme of left outer formword 2 and right outer formword 3 all is equipped with cardboard 6, cardboard 6 joint is in the both sides of bottom plate 5, be equipped with pull rod 7 between the upper end of left outer formword 2 and right outer formword 3, the both ends of pull rod 7 run through left outer formword 2 and right outer formword 3 respectively, and the both ends of pull rod 7 are threaded connection with nut 15, the upper surface of base 1 is located the both sides of bottom plate 5 and all fixedly mounted with plug socket 8, the inside grafting of plug socket 8 has supporting beam 9, inner membrance 4 is located the inside and middle position of left outer formword 2 and right outer formword 3;

the supporting beam 9 comprises a supporting plate 12, the lower end of the supporting plate 12 is inserted into the inserting base 8, a transverse plate 13 is fixedly arranged at the upper end of the supporting plate 12, inclined struts 14 are fixedly arranged on two sides of the transverse plate 13, the lower ends of the inclined struts 14 are fixedly arranged in the middle positions of the two sides of the supporting plate 12, and the upper surfaces of the transverse plate 13 are contacted with the lower surfaces of the left outer template 2 and the right outer template 3;

the inner membrane 4 comprises an inner membrane 16, an upper mould 17 and a lower mould 18, the number of the inner membrane 16 is two, the inner membrane 16 is of an arc-shaped structure, two ends of the inner membrane 16 are respectively clamped on one side of the upper mould 17 and one side of the lower mould 18, both sides of the upper mould 17 and the lower mould 18 are respectively provided with a second threaded hole 19, the second threaded holes 19 are internally threaded with second screws 20, one end of each second screw 20 penetrates through the upper mould 17 and the lower mould 18 and is in threaded connection with the inner membrane 16, and a screw rod 21 is fixedly installed between the upper mould 17 and the lower mould 18.

As shown in fig. 3 and 4, the bottom plate 5 is a cross structure, the clamping plate 6 is a U-shaped structure, first threaded holes 10 are uniformly formed in two sides of the bottom plate 5, first screws 11 are connected to the inner threads of the first threaded holes 10, the clamping plate 6 is penetrated through the outer sides of the first screws 11 and extends to the outside of the clamping plate 6, the upper die 17 and the lower die 18 are both of a convex structure, and the length of the upper die 17 is greater than that of the lower die 18.

This practical theory of operation: when the utility model is used, the clamping plates 6 at the lower ends of the left outer template 2 and the right outer template 3 are respectively clamped on the bottom plate 5, the first screws 11 are used for penetrating the clamping plates 6, the first screws are connected on the first screw holes 10 in a threaded manner, the clamping plates 6 and the bottom plate 5 are mutually fixed, the supporting beam 9 is inserted in the inserting seat 8, the supporting beam 9 comprises a supporting plate 12, a transverse plate 13 and an inclined plate 14, the upper surface of the transverse plate 13 is respectively contacted with the lower surfaces of the left outer template 2 and the right outer template 3, the supporting beam 9 supports the left outer template 2 and the right outer template 3, the distance between the upper ends of the left outer template 2 and the right outer template 3 is fixed by adjusting the nuts 15 on the pull rods 7, the stability of the left outer template 2 and the right outer template 3 is further increased, and the upper die 17 and the lower die 18 in the inner die 4 are respectively clamped at the two ends of the inner die, and through the second screw 20, make the upper die 17 and lower die 18 all carry on the threaded connection with the inboard membrane 16, place the inner membrance 4 in the left exterior sheathing 2 and right exterior sheathing 3, pour of the prefabricated box girder, after pouring and finishing, and when needing to dismantle the utility model, twist the nut 15, make the tie rod 7 take off from left exterior sheathing 2 and right exterior sheathing 3, and twist the first screw 11, make the cardboard 6 break away from each other with the bottom plate 5, slide and take off the supporting beam 9, facilitate the disassembling and assembling of left exterior sheathing 2 and right exterior sheathing 3, twist the second screw 20, make the upper die 17 and lower die 18 all break away from the inboard membrane 16, and turn the lead screw 21 in the inner membrance 4, make the distance between upper die 17 and lower die 18 shorten, and then facilitate making the upper die 17 and lower die 18 break away from the prefabricated box girder, facilitate taking out the upper die 17 and lower die 18, then the inner side film 16 is taken out, so that the inner film 4 can be conveniently taken out from the interior of the prefabricated box girder, the prefabricated box girder is prevented from being damaged by the inner film 4, and the inner side film is convenient to remove and use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a prefabricated box girder template, includes base (1), left outer formword (2), right outer formword (3) and inner membrance (4), its characterized in that: bottom plate (5) are installed to the upper surface intermediate position of base (1), a left side exterior sheathing (2) with the lower extreme of right side exterior sheathing (3) all is equipped with cardboard (6), cardboard (6) joint is in the both sides of bottom plate (5), a left side exterior sheathing (2) with be equipped with pull rod (7) between the upper end of right side exterior sheathing (3), the upper surface of base (1) is located the equal fixed mounting in both sides of bottom plate (5) has plug socket (8), it has supporting beam (9) to peg graft in the inside of plug socket (8), interior membrance (4) are located left side exterior sheathing (2) with the inside and the middle position of right side exterior sheathing (3).

2. A precast box girder template according to claim 1, wherein: the bottom plate (5) is of a cross structure, the clamping plate (6) is of a U-shaped structure, first threaded holes (10) are uniformly formed in the two sides of the bottom plate (5), first screws (11) are connected to the first threaded holes (10) in an internal thread mode, and the clamping plate (6) is penetrated through the outer side of each first screw (11) and extends to the outer portion of the clamping plate (6).

3. A precast box girder template according to claim 1, wherein: the supporting beam (9) comprises a supporting plate (12), the lower end of the supporting plate (12) is inserted into the inserting seat (8), a transverse plate (13) is fixedly mounted at the upper end of the supporting plate (12), inclined struts (14) are fixedly mounted on two sides of the transverse plate (13), the lower ends of the inclined struts (14) are fixedly mounted in the middle positions of the two sides of the supporting plate (12), and the upper surface of the transverse plate (13) is in contact with the lower surfaces of the left outer formwork (2) and the right outer formwork (3).

4. A precast box girder template according to claim 1, wherein: the two ends of the pull rod (7) penetrate through the left outer template (2) and the right outer template (3) respectively, and nuts (15) are connected to the two ends of the pull rod (7) in a threaded mode.

5. A precast box girder template according to claim 1, wherein: inner membrance (4) include inside membrane (16), go up mould (17) and lower mould (18), go up mould (17) with second screw hole (19) have all been opened to the both sides of lower mould (18), second screw hole (19) female connection has second screw (20), the one end of second screw (20) all runs through go up mould (17) with lower mould (18) and with inside membrane (16) looks threaded connection, go up mould (17) with fixed mounting has lead screw (21) between lower mould (18).

6. A precast box girder template according to claim 5, wherein: the upper die (17) and the lower die (18) are both of a convex structure, and the length of the upper die (17) is greater than that of the lower die (18).

7. A precast box girder template according to claim 5, wherein: the quantity of inside membrane (16) is two, just inside membrane (16) are the arc structure, the both ends of inside membrane (16) are in the joint respectively go up mould (17) with one side of lower mould (18).