Adjustable cantilever formwork structure for steel structure

Abstract

The utility model discloses an adjustable cantilever formwork structure for a steel structure, and belongs to the technical field of building construction equipment. The overhanging formwork support comprises a bottom plate, a first connecting plate, a second connecting plate, a fixed cross beam, an adjusting cross beam, a fixed inclined strut and an adjusting inclined strut. A first connecting plate and a second connecting plate are fixed to the bottom and the top of the bottom plate correspondingly. And the fixed cross beam and the fixed inclined strut are detachably connected with the bottom plate through the second connecting plate and the first connecting plate respectively. Through long holes are formed in webs of the fixed cross beam and the fixed inclined strut in the length direction, so that the position of the adjusting cross beam in the fixed cross beam and the position of the adjusting inclined strut in the fixed inclined strut can be adjusted. And the adjusting cross beam and the adjusting inclined strut directly form rotary connection. The supporting piece and the formwork are arranged above the fixed cross beam and the adjusting cross beam of the cantilever formwork supporting frame to form a formwork supporting structure of a subsequently-poured concrete floor. The overhanging formwork support can adapt to different floorslab overhanging lengths and can be detached and recycled, and the field construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction equipment, and in particular relates to an adjustable cantilever formwork structure for a steel structure. Background Art

[0002] Steel structure cantilever floor is a cantilever floor structure supported by steel beams. In the existing steel structure project construction, for the pouring of the cantilever floor structure on the edge, angle steels are mostly welded on the steel beams as formwork support. This construction scheme requires welding of angle steels in the early stage, and flame cutting is required to remove the angle steels in the later stage. The removed angle steels cannot be reused, and this construction scheme damages the steel beams, is time-consuming, and has low economic benefits. Therefore, it is urgent to provide a cantilever formwork structure that can adapt to different floor cantilever lengths. Utility Model Content

[0003] The utility model aims to solve the deficiencies in the prior art and provide an adjustable cantilever formwork structure for a steel structure.

[0004] The specific technical solutions adopted by this utility model are as follows:

[0005] The utility model provides an adjustable cantilever formwork structure for steel structure, comprising a cantilever formwork frame, a support member and a formwork; the cantilever formwork frame comprises a bottom plate, a first connecting plate, a second connecting plate, a fixed crossbeam, an adjustable crossbeam, a fixed diagonal brace and an adjustable diagonal brace;

[0006] The bottom plate is provided with an oblong hole for passing the fastener, and the bottom plate is fixed to the web of the steel beam to be provided with the cantilever structure by the fastener; the bottom and the top of the bottom plate are respectively fixed with a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are both perpendicular to the bottom plate; the first connecting plate and the second connecting plate are both provided with connecting holes; the fixed crossbeam is arranged perpendicular to the bottom plate, and is detachably connected to the bottom plate through the second connecting plate; the fixed diagonal brace is detachably connected to the bottom plate through the first connecting plate, and the angle between the fixed diagonal brace and the bottom plate is an acute angle;

[0007] The webs of the fixed crossbeam and the fixed diagonal brace are both provided with through-long holes of a certain length along the length direction; a connecting hole is provided at one end of the web of the adjustable crossbeam, and a fastener is passed through the connecting hole on the adjustable crossbeam and the through-long hole on the fixed crossbeam to adjust the relative position of the adjustable crossbeam and the fixed crossbeam; the other end of the web of the adjustable crossbeam is rotatably connected with one end of the web of the adjustable diagonal brace; a connecting hole is provided at the other end of the web of the adjustable diagonal brace, and a fastener is passed through the connecting hole on the adjustable diagonal brace and the through-long hole on the fixed diagonal brace to adjust the relative position of the adjustable diagonal brace and the fixed diagonal brace;

[0008] The support members and the template are arranged above the fixed beams and the adjustable beams of the cantilevered template frame to form a template structure for subsequent pouring of the concrete floor slab.

[0009] Preferably, the support member is made of square wood.

[0010] Preferably, the template is a wooden template.

[0011] Preferably, the bottom plate is made of steel plate.

[0012] Preferably, the first connecting plate and the second connecting plate are both fixed to the base plate by welding.

[0013] Preferably, the fixed cross beam and the fixed diagonal brace are both made of channel steel.

[0014] Preferably, the adjustable cross beam and the adjustable diagonal brace are both made of angle steel.

[0015] Preferably, one end where the adjusting diagonal brace and the adjusting crossbeam are connected is arranged as an arc for easy rotation.

[0016] Preferably, the fastener is a bolt or a pin.

[0017] Preferably, the length of the first connecting plate is greater than that of the second connecting plate, leaving space for the fixed diagonal brace to rotate.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] (1) Each component of the cantilever formwork frame provided by the utility model can be processed and manufactured in a factory, thereby improving the processing quality of the cantilever formwork frame.

[0020] (2) The various components of the cantilever formwork provided by the utility model can be connected by bolts or pins, and the cantilever formwork can also be fixed on the steel beam by bolts or pins, which makes on-site installation easier and improves construction efficiency. In addition, the cantilever formwork is easy to dismantle and recycle, thereby improving turnover rate.

[0021] (3) The cantilever formwork frame provided by the utility model is provided with an adjustable crossbeam and an adjustable diagonal brace, so that the outward extension length of the entire formwork frame can be adjusted. The cantilever formwork frame can be suitable for floor slabs with different cantilever lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the cantilever formwork structure installation provided in this embodiment;

[0023] Figure 2 A schematic diagram of a cantilevered formwork frame provided for this embodiment;

[0024] Figure 3This is a schematic diagram of the steel beam used to install the cantilever formwork;

[0025] Figure 4 This is a schematic diagram of installing cantilever formwork at intervals on steel beams;

[0026] Figure 5 This is a schematic diagram after pouring is completed;

[0027] In the figure: cantilever formwork 1, support 2, formwork 3, steel beam 4, concrete floor 5, bottom plate 1-1, first connecting plate 1-2, second connecting plate 1-3, fixed cross beam 1-4, adjustable cross beam 1-5, fixed diagonal brace 1-6, adjustable diagonal brace 1-7. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed below. The technical features in each embodiment of the utility model can be combined accordingly without conflicting with each other.

[0029] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0030] like Figure 1 As shown, as a preferred embodiment of the present invention, this embodiment provides an adjustable cantilever formwork structure for steel structure. The cantilever formwork structure includes a cantilever formwork frame 1, a support member 2 and a template 3. The cantilever formwork frame 1 includes a bottom plate 1-1, a first connecting plate 1-2, a second connecting plate 1-3, a fixed crossbeam 1-4, an adjustable crossbeam 1-5, a fixed diagonal brace 1-6 and an adjustable diagonal brace 1-7.

[0031] like Figure 2 As shown, in the structure provided by the utility model, an oblong hole for passing a fastener is provided on the bottom plate 1-1, and the bottom plate 1-1 can be fixed to the web of the steel beam 4 to be provided with the cantilever structure by the fastener. In this embodiment, the bottom plate 1-1 is made of a steel plate. It should be noted that those skilled in the art can also choose other steel sections as the bottom plate, such as channel steel, angle steel, etc.

[0032] In this embodiment, a first connecting plate 1-2 is fixed to the bottom of the bottom plate 1-1 by welding, and a second connecting plate 1-3 is fixed to the top of the bottom plate 1-1 by welding, and the first connecting plate 1-2 and the second connecting plate 1-3 are both arranged perpendicular to the bottom plate 1-1. The first connecting plate 1-2 and the second connecting plate 1-3 are both provided with connecting holes.

[0033] In the structure provided by the utility model, the fixed crossbeam 1-4 is arranged perpendicular to the base plate 1-1, and is detachably connected to the base plate 1-1 through the second connecting plate 1-3, and the fixed crossbeam 1-4 extends to the outside of the cantilevered end; the fixed diagonal brace 1-6 is detachably connected to the base plate 1-1 through the first connecting plate 1-2, and the angle between the fixed diagonal brace 1-6 and the base plate 1-1 is an acute angle.

[0034] It should be noted that, in this embodiment, the fixed cross beam 1-4 and the fixed diagonal brace 1-6 are respectively fixed to the second connecting plate 1-3 and the first connecting plate 1-2 by bolt connection. Those skilled in the art may also adopt other detachable connection methods, such as pin connection. In addition, in this embodiment, the length of the first connecting plate 1-2 is greater than that of the second connecting plate 1-3, leaving space for the fixed diagonal brace 1-6 to rotate.

[0035] In the structure provided by the utility model, the webs of the fixed crossbeam 1-4 and the fixed diagonal brace 1-6 are provided with through-length holes of a certain length along the length direction. A connection hole is provided at one end of the web of the adjusting crossbeam 1-5, and a fastener is passed through the connection hole on the adjusting crossbeam 1-5 and the through-length hole on the fixed crossbeam 1-4 to adjust the relative position of the adjusting crossbeam 1-5 and the fixed crossbeam 1-4. The other end of the web of the adjusting crossbeam 1-5 is rotatably connected with one end of the web of the adjusting diagonal brace 1-7; a connection hole is provided at the other end of the web of the adjusting diagonal brace 1-7, and a fastener is passed through the connection hole on the adjusting diagonal brace 1-7 and the through-length hole on the fixed diagonal brace 1-6 to adjust the relative position of the adjusting diagonal brace 1-7 and the fixed diagonal brace 1-6.

[0036] In order to facilitate the rotation of the diagonal brace 1-7 at the outer end of the adjustment beam 1-5, in this embodiment, the end of the adjustment diagonal brace 1-7 connected to the adjustment beam 1-5 is set to be an arc for easy rotation. Figure 2 shown.

[0037] In this embodiment, the fixed cross beam 1-4 and the fixed diagonal brace 1-6 are both made of channel steel, and the adjustable cross beam 1-5 and the adjustable diagonal brace 1-7 are both made of angle steel. Those skilled in the art may also select other steel sections according to actual working conditions.

[0038] like Figure 1As shown, the support member 2 and the template 3 are arranged above the fixed beams 1-4 and the adjustable beams 1-5 of the cantilevered template frame 1 to form a template structure for subsequent pouring of the concrete floor 5. In this embodiment, the support member 2 is made of square wood and the template 3 is made of wooden template.

[0039] In this embodiment, bolts are used to connect the components. It should be noted that those skilled in the art may also select other connection methods that are easy to disassemble and adjust, such as pin connection, according to specific working conditions.

[0040] A method for setting a cantilever structure on the outer side of a steel beam using the above-mentioned adjustable cantilever formwork structure is provided below, and the specific steps are as follows:

[0041] (1) Figure 3 As shown, on the web of the steel beam 4 where the cantilever structure is to be set, a plurality of bolt holes are provided at intervals along the length direction;

[0042] (2) Figure 4 As shown, the adjustable cantilever formwork structure is fixed to the web of the steel beam (4) by bolt connection. Specifically, the bolts are passed through the connection holes on the bottom plate 1-1 and the bolt holes on the web of the steel beam 4 for fixed connection.

[0043] (3) Setting up wooden formwork and square timber, completing formwork and pouring concrete to form a concrete floor slab 5.

[0044] (4) Figure 5 As shown, after the concrete floor 5 is cured, the adjustable cantilever formwork structure is dismantled and recovered.

[0045] The above-described embodiment is only a preferred solution of the present invention, but it is not intended to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. An adjustable cantilever formwork structure for a steel structure, characterized in that: The cantilever formwork frame (1) comprises a cantilever formwork frame (1), a support member (2) and a formwork (3); the cantilever formwork frame (1) comprises a base plate (1-1), a first connecting plate (1-2), a second connecting plate (1-3), a fixed crossbeam (1-4), an adjustable crossbeam (1-5), a fixed diagonal brace (1-6) and an adjustable diagonal brace (1-7); The bottom plate (1-1) is provided with an oblong hole for passing a fastener, and the bottom plate (1-1) is fixed to the web of a steel beam (4) on which a cantilever structure is to be arranged by means of the fastener; a first connecting plate (1-2) and a second connecting plate (1-3) are respectively fixed to the bottom and top of the bottom plate (1-1), and both the first connecting plate (1-2) and the second connecting plate (1-3) are perpendicular to the bottom plate (1-1); connecting holes are provided on both the first connecting plate (1-2) and the second connecting plate (1-3); the fixed crossbeam (1-4) is arranged perpendicular to the bottom plate (1-1), and is detachably connected to the bottom plate (1-1) by means of the second connecting plate (1-3); the fixed diagonal brace (1-6) is detachably connected to the bottom plate (1-1) by means of the first connecting plate (1-2), and the angle between the fixed diagonal brace (1-6) and the bottom plate (1-1) is an acute angle; The webs of the fixed crossbeam (1-4) and the fixed diagonal brace (1-6) are provided with through-length holes of a certain length along the length direction; a connecting hole is provided at one end of the web of the adjusting crossbeam (1-5), and a fastener is passed through the connecting hole on the adjusting crossbeam (1-5) and the through-length hole on the fixed crossbeam (1-4) to adjust the relative position of the adjusting crossbeam (1-5) and the fixed crossbeam (1-4); the other end of the web of the adjusting crossbeam (1-5) is rotatably connected with one end of the web of the adjusting diagonal brace (1-7); a connecting hole is provided at the other end of the web of the adjusting diagonal brace (1-7), and a fastener is passed through the connecting hole on the adjusting diagonal brace (1-7) and the through-length hole on the fixed diagonal brace (1-6) to adjust the relative position of the adjusting diagonal brace (1-7) and the fixed diagonal brace (1-6); The support member (2) and the formwork (3) are arranged above the fixed beams (1-4) and the adjustable beams (1-5) of the cantilevered formwork frame (1), forming a formwork structure for the subsequent pouring of a concrete floor slab (5).

2. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: The support member (2) is made of square wood.

3. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: The template (3) is a wooden template.

4. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: The bottom plate (1-1) is made of steel plate.

5. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: The first connecting plate (1-2) and the second connecting plate (1-3) are both fixed to the bottom plate (1-1) by welding.

6. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: The fixed cross beam (1-4) and the fixed diagonal brace (1-6) are both made of channel steel.

7. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: The adjusting crossbeam (1-5) and the adjusting diagonal brace (1-7) are both made of angle steel.

8. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: One end where the adjusting diagonal brace (1-7) and the adjusting crossbeam (1-5) are connected is arranged as a circular arc for easy rotation.

9. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: The fastener is a bolt or a pin.

10. The adjustable cantilever formwork structure for steel structure according to claim 1, characterized in that: The length of the first connecting plate (1-2) is greater than that of the second connecting plate (1-3), leaving space for the fixed diagonal brace (1-6) to rotate.

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