Construction support frame for steel structure edge reinforced concrete lower hanging plate and upper turning plate

Abstract

The utility model discloses a construction support frame for a reinforced concrete lower hanging plate and an upper turning plate at the edge of a steel structure. The construction support frame comprises a support frame main body, an operation platform and a protection assembly, the lower end of the supporting frame body is fixedly installed on the top face of a floor of an F-th layer structure, the upper end of the supporting frame body extends upwards to the bottom face of a floor of an (F + 1)-th layer structure, and the supporting frame body can abut against the inner wall of a web of a steel beam of the (F + 1)-th layer structure. The upper portion of the supporting frame body extends outwards to the outside of the building structure, and the working platform is erected on the outwards-extending portion of the upper portion of the supporting frame body and is lower than the bottom face of the lower hanging plate. The protection assembly is arranged on the upper portion of the supporting frame body and located on the outer sides of the lower hanging plate and the upper turning plate. The utility model relates to the technical field of building construction, and can solve the problem that in the prior art, a special outer frame needs to be erected to construct a reinforced concrete lower hanging plate and an upper turning plate on the edge of a steel structure.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a construction support frame for a reinforced concrete lower hanging plate and an upper flip plate at the edge of a steel structure. Background Art

[0002] During the construction of building steel structures, it is necessary to construct upper flaps and lower hanging panels of reinforced concrete structures. The traditional construction method is to set up special external frames on the outside of the upper flaps (height 1m and above) and the lower hanging panels to provide a working platform located outside the building structure for the construction of the upper flaps and lower hanging panels. The erection and disassembly of special external frames pose great safety hazards, and the demand for personnel and equipment is high, which is not conducive to the control of construction period and cost. Therefore, it is necessary to provide a construction support frame for reinforced concrete lower hanging panels and upper flaps at the edge of steel structures, which can solve the problem of the need to set up special external frames to construct reinforced concrete lower hanging panels and upper flaps at the edge of steel structures in the prior art. Summary of the invention

[0003] The purpose of the utility model is to provide a construction support frame for reinforced concrete lower hanging plates and upper flaps at the edge of steel structures, which can solve the problem in the prior art that a special external frame needs to be set up to construct reinforced concrete lower hanging plates and upper flaps at the edge of steel structures.

[0004] The utility model is achieved in this way:

[0005] A construction support frame for reinforced concrete lower hanging plates and upper flaps at the edge of a steel structure, comprising a support frame body, a work platform and a protective assembly; the lower end of the support frame body is fixedly mounted on the top surface of the floor slab of the F-th layer structure, the upper end of the support frame body extends upward to the bottom surface of the floor slab of the F+1-th layer structure, and the support frame body can abut against the inner wall of the web of the steel beam of the F+1-th layer structure; the upper part of the support frame body extends outward to the outside of the building structure, the work platform is set up on the upper outer extension part of the support frame body, and the work platform is lower than the bottom surface of the lower hanging plate; the protective assembly is arranged on the upper part of the support frame body, and the protective assembly is located on the outer sides of the lower hanging plate and the upper flap.

[0006] The support frame body includes frame uprights, frame cross bars, first frame diagonal bars and second frame diagonal bars; a plurality of frame uprights are vertically arranged between the floor slab of the F-th floor structure and the floor slab of the F+1-th floor structure; the lower ends of a plurality of first frame diagonal bars are fixed to the floor slab of the F-th floor structure, and the upper ends of a plurality of first frame diagonal bars extend to the lower outside of the lower hanging plate; the lower ends of the second frame diagonal bars are fixed to the floor slab of the F-th floor structure and are located on the outer side of the first frame diagonal bars, and the upper ends of a plurality of second frame diagonal bars extend to the outer side of the upper flap; a plurality of frame cross bars are horizontally erected between a plurality of frame uprights, a plurality of first frame diagonal bars and a plurality of second frame diagonal bars, and the frame cross bars located on the inner side of the steel beam abut against the inner wall of the web of the steel beam, and the two frame cross bars located below the lower hanging plate extend to the lower outside of the lower hanging plate.

[0007] A protective assembly is installed at the outer ends of the two frame cross bars below the lower hanging plate, and a working platform is installed on the first frame cross bar below the lower hanging plate to form an outer construction space between the protective assembly, the working platform, the upper flap and the lower hanging plate.

[0008] Two cross-arranged diagonal bracing rods are arranged on the outer facades on both sides of the support frame body to form a scissors brace, and the scissors brace is located between the floor slab of the F-th layer structure and the floor slab of the F+1-th layer structure.

[0009] The outer facades on both sides of the support frame body are provided with inclined rods, and the inclined rods are installed on the scissors brace and the support frame body.

[0010] A wall connecting member is horizontally arranged between the upper part of the second frame oblique rod and the F+1 layer structure, and the end of the wall connecting member is fixedly connected to the lower hanging plate.

[0011] The floor slab of the F-th layer structure is pre-embedded with anti-skid bars, and the lower ends of the frame uprights, the first frame diagonal bars and the second frame diagonal bars are fixed to the top surface of the floor slab of the F-th layer structure through the anti-skid bars.

[0012] The protection assembly comprises a protection railing fixed on the outer ends of two frame cross bars located below the lower hanging plate and a dense mesh hung on the protection railing.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a support frame body, a work platform and a protective component. The support frame body is erected by utilizing the floor slabs of two adjacent layers and the steel beams of the upper steel structure, thereby ensuring the structural stability of the support frame body and the bearing capacity of the outer extension part. The support frame body has a strong bearing capacity and can cooperate with the work platform and the protective component to provide a safe outer construction space for the construction of the lower hanging plate and the upper flip plate. There is no need to erect a special external frame. The support frame body is erected inside the building structure, and the construction safety and convenience are high, which reduces the demand for manpower and equipment, is conducive to controlling the construction progress and cost, and is economical and practical.

[0015] 2. The utility model is provided with anti-skid ribs, scissors braces and diagonal rods. The anti-skid ribs are used to improve the bottom strength of the support frame body, and the scissors braces and diagonal rods are used to improve the side strength of the support frame body, thereby ensuring the integrity, structural stability and bearing capacity of the support frame body, and further ensuring the construction safety of the lower hanging plate and the upper flip plate.

[0016] 3. Since the utility model is provided with steel beams and wall connecting parts, the steel beams can provide a limit for the first frame cross bar of the support frame body to prevent the support frame body from tilting outward, and the wall connecting parts can form a tie between the outer extension part of the support frame body and the lower hanging plate to further prevent the support frame body from tilting outward, thereby further ensuring the structural stability and bearing capacity of the support frame body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a construction elevation drawing of a construction support frame for a reinforced concrete lower hanging plate and an upper flip plate at the edge of a steel structure according to the utility model.

[0018] In the figure, 1 is an anti-skid reinforcement, 2 is a scissors brace, 3 is an inclined rod, 4 is a working platform, 5 is a steel beam, 6 is a wall connection member, 7 is a protective assembly, 8 is an upper flap, 9 is a frame vertical rod, 10 is a frame horizontal rod, 11 is the F-th layer structure, 12 is a lower hanging plate, 13 is the F+1-th layer structure, 15 is the first frame diagonal rod, and 16 is the second frame diagonal rod. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] According to the design drawings, the steel structure is located at the F+1th floor. After the construction of the steel structures of the Fth floor structure 11 and the F+1th floor 13 is completed, it is necessary to construct a lower hanging plate 12 below the outer edge of the steel structure and an upper flap 8 above the outer edge of the steel structure.

[0021] Please see attached Figure 1A construction support frame for reinforced concrete lower hanging plates and upper flaps at the edge of a steel structure, comprising a support frame body, a work platform 4 and a protective assembly 7; the lower end of the support frame body is fixedly mounted on the top surface of the floor slab of the F-th layer structure 11, the upper end of the support frame body extends upward to the bottom surface of the floor slab of the F+1-th layer structure 13, and the support frame body can abut against the inner wall of the web of the steel beam 5 of the F+1-th layer structure 13; the upper part of the support frame body extends outward to the outside of the building structure, the work platform 4 is set up on the upper outer extension part of the support frame body, and the work platform 4 is lower than the bottom surface of the lower hanging plate 12; the protective assembly 7 is arranged on the upper part of the support frame body, and the protective assembly 7 is located on the outside of the lower hanging plate 12 and the upper flap 8.

[0022] The floor slabs of the F-th layer structure 11 and the F+1-th layer structure 13 are used to ensure the stable erection of the support frame body. The inner wall of the web of the steel beam 5 (usually H-shaped steel, I-shaped steel, etc. at the edge of the steel structure, the steel beam 5 has been completed and has a good bearing capacity) provides a limiting function for the support frame body to prevent the upper part or the entire support frame body from tilting outward or even collapsing after the outer extended part of the support frame body is stressed.

[0023] Preferably, the working platform 4 may be made of a steel mesh to ensure that construction workers can stand and work, and the protective component 7 is used to provide outer protection to prevent people or objects from falling.

[0024] The support frame body includes a frame upright 9, a frame cross bar 10, a first frame oblique bar 15 and a second frame oblique bar 16; a plurality of frame uprights 9 are vertically arranged between the floor slab of the F-th layer structure 11 and the floor slab of the F+1-th layer structure 13; the lower ends of a plurality of first frame oblique bars 15 are fixed on the floor slab of the F-th layer structure 11, and the upper ends of a plurality of first frame oblique bars 15 extend to the lower outer side of the lower hanging plate 12; the lower ends of the second frame oblique bars 16 are fixed on the floor slab of the F-th layer structure 11. The upper ends of several second frame diagonal bars 16 extend to the outside of the upper flap 8; several frame cross bars 10 are horizontally arranged between several frame vertical bars 9, several first frame diagonal bars 15 and several second frame diagonal bars 16, and the frame cross bars 10 located on the inner side of the steel beam 5 are in contact with the inner wall of the web of the steel beam 5, and the two frame cross bars 10 located below the lower hanging plate 12 extend to the lower outside of the lower hanging plate 12.

[0025] The frame uprights 9, frame crossbars 10, first frame diagonal bars 15 and second frame diagonal bars 16 can be made of round steel pipes, and the number, specifications, lengths, etc. of the round steel pipes can be adaptively selected according to actual erection requirements. By erecting horizontal, vertical and diagonal steel pipes, a support frame body is formed, and the upper part of the support frame body can extend to the outside of the upper flap 8 and the lower hanging plate 12, so as to provide construction space outside the upper flap 8 and the lower hanging plate 12, and to ensure that the support frame body has sufficient bearing capacity, which solves the problem of having to erect an external frame to construct the upper flap and the lower hanging plate in the prior art.

[0026] The main body of the support frame adopts the conventional scaffolding erection method, which is convenient and quick to erect, and is located inside the building structure, with high construction safety.

[0027] A protective component 7 is installed at the outer ends of the two frame cross bars 10 located below the lower hanging plate 12, and a working platform 4 is installed on the first frame cross bar 10 located below the lower hanging plate 12, forming an outer construction space between the protective component 7, the working platform 4, the upper flap 8 and the lower hanging plate 12.

[0028] The outer extension length of the frame cross bar 10 can be adaptively adjusted according to the width requirement of the outer construction space, and the top height of the protection component 7 can be adaptively adjusted according to the protection height requirement to ensure that the outer construction space can meet the safe construction of the upper flap 8 and the lower hanging plate 12.

[0029] The number of outward extensions of the frame crossbar 10 can be two to ensure the structural safety of the outer construction space and the firm installation and protective effect of the protection component 7. The number of outward extensions of the frame crossbar 10 can also be adaptively adjusted according to actual needs.

[0030] Two cross-arranged diagonal bracing rods are provided on the outer facades on both sides of the support frame body to form a scissors brace 2, and the scissors brace 2 is located between the floor slab of the F-th layer structure 11 and the floor slab of the F+1-th layer structure 13.

[0031] The scissors struts 2 are used to reinforce the main body of the support frame. Preferably, one of the diagonal struts is obliquely supported between the floor slab of the F-th layer structure 11 and the floor slab of the F+1-th layer structure 13, and the upper part of one of the diagonal struts is fixed at the connection node with the frame uprights 9 and the frame cross bars 10 located on the inner side of the steel beam 5, and the lower part of one of the diagonal struts is fixed at the connection node between the frame cross bars 10 located at the bottom and the second frame diagonal bars 16; the other diagonal strut is obliquely supported between the floor slab of the F-th layer structure 11 and the upper part of the main body of the support frame, and the upper part of the other diagonal strut is fixed at the connection node between the frame uprights 9 located on the inner side and the frame cross bars 10 located at the bottom, and the lower part of the other diagonal strut is fixed at the connection node between the frame cross bars 10 located on the outer side of the lower hanging plate 12, the second frame diagonal bars 16 and the protective component 7.

[0032] The outer facades on both sides of the support frame body are provided with inclined rods 3, and the inclined rods 3 are installed on the scissors struts 2 and the support frame body.

[0033] Preferably, the diagonal brace 3 is installed on the upper part of the support frame body and is connected to the two diagonal brace rods of the scissors strut 2 and the frame vertical rod 9, frame cross rod 10, first frame diagonal rod 15 and second frame diagonal rod 16 of the support frame body to further reinforce the support frame body.

[0034] A wall connecting member 6 is horizontally provided between the upper portion of the second frame oblique rod 16 and the F+1th layer structure 13 , and the end of the wall connecting member 6 is fixedly connected to the lower hanging plate 12 .

[0035] The wall connecting member 6 can be installed simultaneously when the lower hanging plate 8 is constructed, and is used to provide tension for the support frame body, transfer the force of the support frame body to the building structure, prevent the support frame body from tilting outward or even collapsing, and improve construction safety.

[0036] The anti-skid bars 1 are embedded in the floor slab of the F-th layer structure 11, and the lower ends of the frame uprights 9, the first frame diagonal bars 15 and the second frame diagonal bars 16 are fixed to the top surface of the floor slab of the F-th layer structure 11 through the anti-skid bars 1.

[0037] The anti-skid reinforcement 1 can be made of steel bars, one end of which is embedded in the floor slab, and the other end is used to be inserted and fixed in the lower ends of the frame uprights 9, the first frame diagonal bars 15 and the second frame diagonal bars 16, so as to improve the installation stability of the frame uprights 9, the first frame diagonal bars 15 and the second frame diagonal bars 16.

[0038] The protection assembly 7 includes a protection railing fixed on the outer ends of two frame cross bars 10 located below the lower hanging plate 12 and a dense mesh hung on the protection railing.

[0039] The guardrail can be made of horizontal bars and vertical bars connected by special fasteners, or other structural forms of guardrails can be used according to actual protection needs to ensure the effectiveness of external protection. The specifications of the dense mesh can be adaptively selected according to actual protection needs, and the dense mesh can be hung vertically to improve the protection effect of the guardrail, thereby preventing people and objects from falling.

[0040] Please see attached Figure 1 , the construction process of the utility model is:

[0041] During the construction of the floor slab of the F-th layer structure 11, the anti-slip reinforcement 1 is pre-embedded in the floor slab of the F-th layer structure 11. The pouring of the floor slab of the F-th layer structure 11 and the pre-embedding of the anti-slip reinforcement 1 are constructed by conventional processes, which will not be repeated here.

[0042] The support frame body is erected by means of frame vertical bars 9, frame cross bars 10, first frame diagonal bars 15 and second frame diagonal bars 16, so that the outer end of the first frame cross bar 10 abuts against the inner wall of the web of the steel beam 5 to prevent the upper part of the support frame body from tilting outward; the second and third frame cross bars 10 extend to the outer side below the bottom formwork of the lower hanging plate 12, and the second and third frame cross bars 10 are perpendicular to the side formwork of the lower hanging plate 12 and extend outward to 700mm outside the side formwork to provide an outer construction space of sufficient width; the upper end of the first frame diagonal bar 15 extends to the outer side below the lower hanging plate 12, and the upper end of the second frame diagonal bar 16 extends to the outer side of the upper flap 8.

[0043] Scissor braces 2 are installed on the outer facades on both sides of the support frame body, and diagonal tie rods 3 are installed on the outer facades on both sides of the support frame body and the scissor braces 2 to reinforce the support frame body and prevent the support frame body from overturning.

[0044] Guardrails and vertical meshes are installed at the outer ends of the second and third frame crossbars 10 to form a protection assembly 7. A work platform 4 is installed on the outer extension section of the second frame crossbar 10, and an outer construction space is formed between the work platform 4, the protection assembly 7 and the lower hanging plate 12.

[0045] Tie the steel bars of the lower hanging plate 12, install the template of the lower hanging plate 12, cast the lower hanging plate 12 first, and embed the connecting steel pipe of the wall connecting member 6 while casting the lower hanging plate 12, so as to facilitate the subsequent installation of the wall connecting member 6. The lower hanging plate 12 adopts the conventional reinforced concrete construction process, which will not be repeated here.

[0046] When the lower hanging plate reaches 70% of the design strength, the wall connecting member 6 is installed between the connecting steel pipe and the second frame diagonal rod 16, the steel bars of the upper flap 8 are tied, the template of the upper flap 8 is installed, and the casting construction of the upper flap 8 is carried out. The upper flap 8 adopts conventional reinforced concrete construction technology, which will not be repeated here.

[0047] After the upper flap 8 reaches 70% of the design strength, the templates of the upper flap 8 and the lower hanging plate 12 are removed, and after the concrete strength of the lower hanging plate 12 reaches 100% of the design strength, the construction support frame of the utility model is removed. The principle of removing the construction support frame is: "the later erected ones should be removed first, from top to bottom, and the outer side should be removed first and then the inner side".

[0048] The scissors brace 2, diagonal rod 3, guardrail of the protection assembly 7, frame upright 9, frame cross bar 10, first frame diagonal rod 15 and second frame diagonal rod 16 can all be made of A48X3.0 ordinary steel pipes, and the fasteners are cross buckles and rotating fasteners, which are all ordinary materials, easy to obtain and construct, and convenient to disassemble and assemble.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A construction support frame for reinforced concrete lower hanging plates and upper flaps at the edge of a steel structure, characterized by: The invention comprises a support frame body, a work platform (4) and a protection component (7); the lower end of the support frame body is fixedly mounted on the top surface of the floor of the F-th layer structure (11), the upper end of the support frame body extends upward to the bottom surface of the floor of the F+1-th layer structure (13), and the support frame body can abut against the inner wall of the web of the steel beam (5) of the F+1-th layer structure (13); the upper part of the support frame body extends outward to the outside of the building structure, the work platform (4) is set on the upper outer extension part of the support frame body, and the work platform (4) is lower than the bottom surface of the lower hanging plate (12); the protection component (7) is arranged on the upper part of the support frame body, and the protection component (7) is located on the outer side of the lower hanging plate (12) and the upper flap (8).

2. The construction support frame for the reinforced concrete lower hanging plate and upper flap plate at the edge of the steel structure according to claim 1 is characterized by: The support frame body comprises a frame upright rod (9), a frame cross rod (10), a first frame oblique rod (15) and a second frame oblique rod (16); a plurality of frame upright rods (9) are vertically arranged between the floor slab of the F-th layer structure (11) and the floor slab of the F+1-th layer structure (13); the lower ends of a plurality of first frame oblique rods (15) are fixed on the floor slab of the F-th layer structure (11), and the upper ends of a plurality of first frame oblique rods (15) extend to the lower outer side of the lower hanging plate (12); the lower ends of the second frame oblique rods (16) are fixed on the floor slab of the F+1-th layer structure (13); The plurality of frame cross bars (10) are horizontally arranged between the plurality of frame vertical bars (9), the plurality of first frame diagonal bars (15) and the plurality of second frame diagonal bars (16), and the frame cross bars (10) located on the inner side of the steel beam (5) are in contact with the inner wall of the web of the steel beam (5), and the two frame cross bars (10) located below the lower hanging plate (12) extend to the lower outer side of the lower hanging plate (12).

3. The construction support frame for the reinforced concrete lower hanging plate and upper flap plate at the edge of the steel structure according to claim 2 is characterized in that: The outer ends of the two frame cross bars (10) located below the lower hanging plate (12) are installed with a protective component (7), and a working platform (4) is installed on the first frame cross bar (10) located below the lower hanging plate (12), so that an outer construction space is formed between the protective component (7), the working platform (4), the upper flap (8) and the lower hanging plate (12).

4. The construction support frame for the reinforced concrete lower hanging plate and upper flap plate at the edge of the steel structure according to claim 2 is characterized by: Two cross-arranged diagonal bracing rods are provided on the exterior facades on both sides of the support frame body to form a scissor brace (2). The scissor brace (2) is located between the floor slab of the F-th layer structure (11) and the floor slab of the F+1-th layer structure (13).

5. The construction support frame for the reinforced concrete lower hanging plate and upper flap plate at the edge of the steel structure according to claim 4 is characterized by: The outer facades on both sides of the support frame body are provided with inclined rods (3), and the inclined rods (3) are installed on the scissor braces (2) and the support frame body.

6. The construction support frame for the reinforced concrete lower hanging plate and upper flap plate at the edge of the steel structure according to claim 2 is characterized by: A wall connecting member (6) is horizontally arranged between the upper part of the second frame inclined rod (16) and the F+1 layer structure (13), and the end of the wall connecting member (6) is fixedly connected to the lower hanging plate (12).

7. The construction support frame for the reinforced concrete lower hanging plate and upper flap plate at the edge of the steel structure according to claim 2 is characterized by: The floor slab of the F-th layer structure (11) is pre-buried with anti-skid bars (1), and the lower ends of the frame uprights (9), the first frame diagonal bars (15) and the second frame diagonal bars (16) are fixed to the top surface of the floor slab of the F-th layer structure (11) through the anti-skid bars (1).

8. The construction support frame for the reinforced concrete lower hanging plate and upper flap plate at the edge of the steel structure according to claim 1 or 3, characterized in that: The protection assembly (7) comprises a protection railing fixed on the outer ends of two frame cross bars (10) located below the lower hanging plate (12) and a dense mesh hung on the protection railing.

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