CN212271607U

CN212271607U - Floor post-cast strip separating type supporting formwork structure

Info

Publication number: CN212271607U
Application number: CN202020290923.6U
Authority: CN
Inventors: 陈小康
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2021-01-01
Anticipated expiration: 2030-03-11

Abstract

The utility model discloses a floor post-cast strip separated support formwork structure, the upper limit groove is arranged at the left and right ends of the top of a post-cast strip formwork, a limiting plate matched with the upper limit groove is arranged at the top of one side wall of a roof formwork close to the post-cast strip formwork in an integrated forming way, the lower limit groove is arranged at the left and right ends of the bottom of the post-cast strip formwork, a chute matched with the lower limit groove is arranged at the bottom end of the roof formwork, a top supporting plate matched with the chute is movably clamped in the lower limit groove, a fixed slide seat is assembled at the bottom of the top supporting plate in a sliding way, the fixed slide seat is connected with the top supporting plate through a fastening stud, a bearing seat is fixedly arranged at the bottom of the fixed slide seat, a lead screw is movably assembled at the bottom of the bearing seat, the cantilever stress phenomenon caused by the secondary back jacking of a floor after the formwork is removed is avoided, and the disassembly and, the use reliability is high.

Description

Floor post-cast strip separating type supporting formwork structure

Technical Field

The utility model belongs to the technical field of support formwork structure, concretely relates to floor post-cast strip disconnect-type supports formwork structure.

Background

The post-cast strip is a harmful crack which is possibly generated due to the non-uniform self-shrinkage or non-uniform settlement of a cast-in-place reinforced concrete structure in the building construction, temporary construction joints are reserved at corresponding positions of a foundation slab, a wall and a floor slab according to the design or construction specification requirements, concrete is re-poured after a period of time, the conventional template supporting method of the beam slab post-cast strip is that a post-cast strip template and the floor slab template are integrally erected and are simultaneously dismantled, and the two sides of the post-cast strip after the template is dismantled are re-erected and supported to be back to the top, when the template is dismantled by adopting the method, the floor slabs at two sides are changed into cantilever slabs, the stress state is changed, although the roof is back, the existing downward deflection deformation cannot be recovered, or the post-cast strip template and the floor slab template are separately dismantled and the post-cast strip template is reserved, the method does not change the stress mode of the floor slab, but the occupation amount of the, and concrete easily flows into the post-cast strip, impurities fall into the post-cast strip, the post-cast strip is difficult to clean, and the concrete pouring quality of the post-cast strip is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a floor post-cast strip disconnect-type supports formwork structure to solve the cantilever atress problem that prior art formwork removal back floor secondary caused of returning to the top.

In order to achieve the above object, the utility model provides a following technical scheme: the floor post-cast strip separated support formwork structure comprises a roof formwork and a post-cast strip formwork, wherein the bottom of the roof formwork is provided with a roof support device, the left end and the right end of the top of the post-cast strip template are both provided with an upper limiting groove, the top of the side wall of the roof template close to the post-cast strip template is integrally provided with a limiting plate matched with the upper limiting groove, the left end and the right end of the bottom of the post-cast strip template are both provided with lower limiting grooves, the end part of the bottom of the roof template is provided with a sliding groove matched with the lower limiting grooves, a top supporting plate matched with the sliding groove is movably clamped in the lower limiting groove, the bottom of the top supporting plate is provided with a fixed sliding seat in a sliding way, the fixed sliding seat is connected with the top supporting plate through a fastening stud, a bearing seat is fixedly arranged at the bottom of the fixed sliding seat, and the bottom of the bearing seat is movably assembled with a lead screw, and the outer wall of the lead screw is assembled with a supporting base in a threaded manner.

Preferably, the roof supporting device is symmetrically arranged on the left side and the right side of the post-cast strip template, the roof supporting device comprises steel pipe stand columns, top ends of the steel pipe stand columns are fixedly provided with top plates, and a longitudinal rod and a horizontal rod are fixedly connected between every two adjacent groups of top plates.

Preferably, the depth of the upper limiting groove is the same as the thickness of the limiting plate, and the tops of the roof template and the post-cast strip template are on the same horizontal line.

Preferably, the length of the sliding groove is the same as that of the jacking plate, and the length of the lower limiting groove is 1/3 of the length of the jacking plate.

Preferably, the top of the fixed sliding seat is provided with a transverse guide slideway, and the top supporting plate is movably assembled in the guide slideway.

Preferably, the bottom of the fixed sliding seat is provided with a threaded hole matched with the fastening stud, the threaded hole extends upwards into the guide slideway, and the length of the fastening stud is greater than that of the threaded hole.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable structural design, the installation of roof template is carried out first, then the support of roof template is realized through the roof strutting arrangement, then the post-cast strip template is assembled at the bottom of the roof template, when rotating the lead screw, the lead screw is impelled to move upwards through the screw connection effect of the lead screw and the support base, thus the adjustment of the fixed slide seat can be carried out according to the height of the post-cast strip template, the top supporting plate can be assembled in the chute, and the top supporting plate slides to the right side of the fixed slide seat, the assembly of the top supporting plate, the chute and the lower limiting groove is realized, and the fixed assembly of the fixed slide seat and the top supporting plate is realized through the fastening stud, thus the simultaneous support of the roof template and the post-cast strip template can be realized, the mutual limiting effect can be ensured, the installation stability of the roof template and the post-cast strip template is improved, in addition, the support structure at the bottom of the post-cast strip template, the roof cantilever part is supported without changing the stress of the original structure, the cantilever stress phenomenon caused by the secondary roof return of the floor slab after the form removal is avoided, the roof template and the post-cast strip template are convenient to remove, the mode of removing the post-cast strip template is compared with the construction mode of reserving the post-cast strip template, the turnover of the post-cast strip template is facilitated, materials are saved, concrete and sundries fall down through the gaps of the post-cast strip, the defects that the post-cast strip is easy to flow into concrete and fall into sundries are avoided, and the procedures of cleaning the concrete joints of the post-cast strip, roughening and derusting of reinforcing steel bars and the like can be conveniently carried out.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: the structure comprises a roof template 1, a roof supporting device 2, a post-cast strip template 3, an upper limiting groove 4, a limiting plate 5, a lower limiting groove 6, a top supporting plate 7, a sliding groove 8, a fixed sliding seat 9, a fastening stud 10, a bearing seat 11, a lead screw 12 and a supporting base 13.

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.

Referring to fig. 1, the present invention provides a technical solution: a floor post-cast strip separated supporting formwork structure comprises a roof formwork 1 and a post-cast strip formwork 3, wherein a roof supporting device 2 is assembled at the bottom of the roof formwork 1, upper limit grooves 4 are formed in the left and right ends of the top of the post-cast strip formwork 3, a limit plate 5 matched with the upper limit grooves 4 is integrally formed at the top of one side wall of the roof formwork 1 close to the post-cast strip formwork 3, lower limit grooves 6 are formed in the left and right ends of the bottom of the post-cast strip formwork 3, a sliding chute 8 matched with the lower limit grooves 6 is formed in the bottom end of the roof formwork 1, a top supporting plate 7 matched with the sliding chute 8 is movably clamped in the lower limit grooves 6, a fixed sliding seat 9 is assembled at the bottom of the top supporting plate 7 in a sliding mode, the fixed sliding seat 9 is connected with the top supporting plate 7 through a fastening stud 10, a bearing seat 11 is fixedly arranged at the bottom of the fixed sliding seat 9, and a lead screw 12 is movably assembled at the, the outer wall of the screw 12 is screwed with a supporting base 13, when the structure is installed, the roof template 1 is installed firstly, then the roof template 1 is supported through the roof supporting device 2, then the post-cast strip template 3 is assembled at the bottom of the roof template 1, the pre-supporting of the post-cast strip template 3 is realized through the supporting base 13, the screw 12, the fixed sliding seat 9 and the top supporting plate 7, then the screw 12 is manually rotated, the screw 12 is driven to move upwards through the screwing action of the screw 12 and the supporting base 13, thus the adjustment of the fixed sliding seat 9 can be carried out according to the height of the post-cast strip template 3, the top supporting plate 7 can be conveniently assembled in the sliding groove 8, the top supporting plate 7 is slid to the right side of the fixed sliding seat 9, the assembly of the top supporting plate 7, the sliding groove 8 and the lower limiting groove 6 is realized, and the fixed assembly of the fixed sliding seat 9 and the top supporting plate 7 is realized through the fastening stud 10, in addition, when the post-cast strip template 3 is removed, the screw 12 is firstly rotated reversely, the screw 12 is promoted to descend so as to relieve the jacking action of the top supporting plate 7 on the roof template 1 and the post-cast strip template 3, then the top supporting plate 7 is slid into the chute 8, the post-cast strip template 3 can be removed from the roof template 1, the removal convenience of the post-cast strip template 3 is improved, the supporting structure at the bottom of the post-cast strip template 3, namely the screw 12 and the supporting base 13, is not removed after the roof construction is finished, thus the cantilever part of the roof is supported without changing the stress of the original structure, the cantilever stress phenomenon caused by the secondary roof return of the floor slab after the removal of the template is avoided, the method is safe and reliable, and is convenient for the removal of the roof template 1 and the post-cast strip template 3, the mode of dismantling the post-cast strip template 3 is compared with the construction mode of reserving the post-cast strip template 3, the turnover of the post-cast strip template 3 is facilitated, materials are saved, concrete and sundries fall down through the post-cast strip gap, the defect that the post-cast strip is easy to flow into the concrete and fall into the sundries is avoided, and the procedures of cleaning the concrete joint of the post-cast strip, roughening, derusting reinforcing steel bars and the like can be conveniently carried out.

Referring to fig. 1, the roof supporting devices 2 are symmetrically arranged on the left side and the right side of the post-cast strip formwork 3, each roof supporting device 2 comprises a steel pipe upright, the top ends of the steel pipe uprights are fixedly provided with top plates, and a longitudinal rod and a horizontal rod are fixedly connected between every two adjacent groups of top plates, so that the supporting stability of the roof supporting devices 2 on the roof formwork 1 is improved;

referring to fig. 1, the depth of the upper limiting groove 4 is the same as the thickness of the limiting plate 5, and the tops of the roof template 1 and the post-cast strip template 3 are on the same horizontal line, so that the poured roof is on the same horizontal plane, and the roof pouring quality is improved;

referring to fig. 1, the length of the sliding groove 8 is the same as that of the top supporting plate 7, and the length of the lower limiting groove 6 is 1/3 of the length of the top supporting plate 7, so that the top supporting plate 7 can slide into the sliding groove 8, that is, the post-cast strip template 3 can be detached from the roof template 1, and the detachment convenience of the post-cast strip template 3 is improved;

the top of the fixed sliding seat 9 is provided with a transverse guide slideway, and the top supporting plate 7 is movably assembled in the guide slideway, so that the top supporting plate 7 can slide on the fixed sliding seat 9, and the sliding linearity of the top supporting plate 7 is ensured;

the bottom of the fixed sliding seat 9 is provided with a threaded hole matched with the fastening stud 10, the threaded hole upwards extends into the guide slideway, the length of the fastening stud 10 is larger than that of the threaded hole, when the top supporting plate 7 slides on the fixed sliding seat 9, the limiting of the top supporting plate 7 can be completed through the fastening stud 10, and the assembling stability of the fixed sliding seat 9 and the top supporting plate 7 is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Floor post-cast strip disconnect-type supports formwork structure, including roof template (1) and post-cast strip template (3), the bottom of roof template (1) is equipped with roof strutting arrangement (2), its characterized in that: the post-cast strip template is characterized in that upper limiting grooves (4) are formed in the left end and the right end of the top of the post-cast strip template (3), limiting plates (5) matched with the upper limiting grooves (4) are formed in the top of one side wall of the roof template (1) close to the post-cast strip template (3) in an integrated mode, lower limiting grooves (6) are formed in the left end and the right end of the bottom of the post-cast strip template (3), sliding grooves (8) matched with the lower limiting grooves (6) are formed in the end portion of the bottom of the roof template (1), a top supporting plate (7) matched with the sliding grooves (8) is movably clamped in the lower limiting grooves (6), a fixed sliding seat (9) is assembled at the bottom of the top supporting plate (7) in a sliding mode, the fixed sliding seat (9) is connected with the top supporting plate (7) through a fastening stud (10), a bearing seat (11) is fixedly arranged at the bottom of the fixed sliding seat (9), and a, the outer wall of the screw rod (12) is assembled with a supporting base (13) in a threaded manner.

2. The floor slab post-cast strip separated support formwork structure of claim 1, wherein: roof strutting arrangement (2) symmetry sets up the left and right sides in post-cast strip template (3), just roof strutting arrangement (2) include the steel pipe stand, and the top fixed assembly of steel pipe stand has the roof, and equal fixedly connected with vertical pole and horizon bar between two sets of adjacent roofs.

3. The floor slab post-cast strip separated support formwork structure of claim 1, wherein: the depth of the upper limiting groove (4) is the same as the thickness of the limiting plate (5), and the tops of the roof formwork (1) and the post-cast strip formwork (3) are on the same horizontal line.

4. The floor slab post-cast strip separated support formwork structure of claim 1, wherein: the length of the sliding groove (8) is the same as that of the top supporting plate (7), and the length of the lower limiting groove (6) is 1/3 of the length of the top supporting plate (7).

5. The floor slab post-cast strip separated support formwork structure of claim 1, wherein: the top of the fixed sliding seat (9) is provided with a transverse guide slideway, and the top supporting plate (7) is movably assembled in the guide slideway.

6. The floor slab post-cast strip separated support formwork structure of claim 5, wherein: the bottom of the fixed sliding seat (9) is provided with a threaded hole matched with the fastening stud (10), the threaded hole upwards extends into the guide slideway, and the length of the fastening stud (10) is greater than that of the threaded hole.