A continuous cantilever section inner formwork support frame

Abstract

This utility model provides an inner formwork support frame for a continuous cantilever construction section, belonging to the field of continuous cantilever construction technology. It includes an outer formwork frame and a hoisting frame. The outer formwork frame consists of a bottom plate formwork, wing plate formwork, and web side formwork. The bottom plate formwork is composed of several support frames, with fixed frames fixedly connected to both sides of the support frames. The wing plate formwork consists of a top beam and side wing beams, with the side wing beams fixedly connected to both ends of the top beam. The hoisting frame consists of several main support columns and inclined beam support columns. The hoisting frame is located between the wing plate formwork and the bottom plate formwork. This utility model provides an inner formwork support frame for a continuous cantilever construction section. During the suspension process, the reinforcing bars pass through the reinforcing bar connection holes at the bottom of multiple bow-shaped limiting frames. The outer formwork frame rises along the walking auxiliary hoist, improving the weight balance of the outer formwork frame during suspension. The walking auxiliary hoist is connected to an external steel cable and is tied to the suspension guide beam using the external steel cable. The outer formwork frame is vertically hoisted using the walking auxiliary hoist, facilitating the stable transportation and fixing of the outer formwork frame.

Description

Technical Field

[0001] This utility model belongs to the field of continuous cantilever construction technology, specifically relating to an inner formwork support frame for a continuous cantilever section. Background Technology

[0002] Existing lifting space is limited. For beams where the bottom concrete and the lower end of the side formwork are on the same plane, it is difficult to ensure sufficient space for the entire inner formwork system to descend. The "Inner Formwork Frame for Continuous Beam Cantilever Construction" disclosed in application number "202110176870.4" is an increasingly mature technology. By dividing the main structure of the inner formwork frame into two parts, a fixed beam frame and a movable beam frame, the movable beam frame can drive the top formwork to descend and demold. The side formwork frame is linked with the movable beam frame through a linkage mechanism and a swing arm. The inclined transition between the top and side of the beam cavity provides the side formwork frame with demolding space. When the movable beam frame descends, it moves obliquely upward along the slide to achieve demolding, avoiding the problem of insufficient descent space for the entire inner formwork system. It is applicable to beams with a flat bottom cavity. By using the rotating shaft and its associated mechanism set along the extension direction of the continuous beam to synchronously push the movable beam frame from the inner and outer ends respectively, the smooth and synchronous rise or fall of the inner formwork at both ends can be ensured. However, this device also has the following defects: when setting up the frame, the center of the steel frame template needs to be adjusted during the upward construction of the steel frame, which means that after the formwork moves to the specified height, the support angle of the formwork also needs to be adjusted, affecting the subsequent pouring construction time. Utility Model Content

[0003] The purpose of this utility model is to provide a continuous cantilever section inner formwork support frame, which aims to solve the problem in the prior art that when setting up the frame, the center of gravity of the steel frame template needs to be adjusted during the upward construction of the steel frame, which causes the support angle of the formwork to need to be adjusted after the formwork moves to a specified height, thus affecting the subsequent pouring construction time.

[0004] To achieve the above objectives, this utility model provides the following technical solution: it includes an outer mold frame and a hoisting frame. The outer mold frame consists of a bottom mold, a wing plate template, and a web side mold. The bottom mold consists of several support frames, with fixed frames fixedly connected to both sides of each support frame. The wing plate template consists of a top beam and side wing beams, with the side wing beams fixedly connected to both ends of the top beam. The hoisting frame consists of several main support columns and inclined beam support columns, and is located between the wing plate template and the bottom mold.

[0005] In one embodiment of the continuous cantilever section inner mold support frame of this utility model, the top beam is provided with main connecting crossbeams on both sides of the top, and the side wing beam is provided with a secondary connecting crossbeam on one side.

[0006] In this scheme, the top beam and the side wing beams form a spliced ​​support frame to support the concrete during the pouring process. The side wing beams, the main connecting beams, and several main support columns are spliced ​​together to form a stable support structure, which improves the shear force generated during concrete pouring and enhances the overall stability of the formwork. Multiple outer formwork frames are connected to multiple top beams and side wing beams through the main connecting beams and the secondary connecting beams to form the main body of the pouring formwork shell.

[0007] In one embodiment of the continuous cantilever section inner mold support frame of this utility model, a balance frame is provided at the top of the inner wall of the hoisting frame, and a walking auxiliary hoisting rod is provided in the middle of the hoisting frame.

[0008] In this scheme, the balance frame is connected to the external steel cable and then to the top beam. The walking auxiliary hoist is connected to the external steel cable and is tied to the suspension guide beam using the external steel cable. The external formwork is then vertically lifted using the walking auxiliary hoist.

[0009] In one embodiment of the continuous cantilever section inner mold support frame of this utility model, the inclined beam support columns are distributed between adjacent main support columns, one end of the inclined beam support column is fixedly connected to the top of one side of the main support column, and the other end of the inclined beam support column is fixedly connected to both sides of the top of the support frame.

[0010] In this scheme, the adjacent main support columns are supported by inclined beam support columns, thereby improving the support stability of the main support columns.

[0011] In one embodiment of the continuous cantilever section inner formwork support frame of this utility model, the main support column is provided with auxiliary bow-shaped limiting frames at the four corners, and the top and bottom of the auxiliary bow-shaped limiting frames are provided with steel bar connection holes.

[0012] In this scheme, when adjacent outer formwork frames are connected to the secondary connecting beam through the main connecting beam, the external reinforcing bars pass through the reinforcing bar connection holes on the bottom of the auxiliary bow-shaped limiting frame to assist in the connection of adjacent outer formwork frames, which facilitates the splicing of multiple outer formwork frames in the future. During the suspension process, the reinforcing bars pass through the reinforcing bar connection holes at the bottom of multiple bow-shaped limiting frames, and the outer formwork frame rises along the walking auxiliary lifting rod, which improves the weight balance of the outer formwork frame during suspension, improves the stability of the outer formwork frame during suspension movement and pouring, and facilitates the continuous suspension pouring of concrete in the future.

[0013] In one embodiment of the continuous cantilever section inner mold support frame of this utility model, suspension guide beams are provided on both sides of the bottom of the support frame.

[0014] In this scheme, after multiple outer mold frames are spliced ​​into a whole, the suspended guide beam is connected to the upper suspended hanging basket to facilitate the large-scale lifting of batches of outer mold frames.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1) By passing the reinforcing bars through the reinforcing bar connection holes on the bottom of the auxiliary bow-shaped limiting frame, the adjacent outer formwork is connected, which facilitates the splicing of multiple outer formworks in the future. During the suspension process, the reinforcing bars pass through the reinforcing bar connection holes at the bottom of multiple bow-shaped limiting frames, and the outer formwork rises along the walking auxiliary rod, which improves the weight balance of the outer formwork during suspension. The walking auxiliary rod is connected to the external steel cable and is tied to the suspension guide beam. The outer formwork is vertically lifted by the walking auxiliary rod, which facilitates the stable transportation and fixation of the outer formwork. 2) The top beam and side beams form a spliced ​​support frame to support the concrete during the pouring process. The side beams, main connecting beams and several main support columns are spliced ​​together to form a stable support structure, which improves the shear force generated during concrete pouring and improves the overall stability of the formwork. Multiple outer formwork frames are connected to multiple top beams and side beams through main connecting beams and secondary connecting beams to form the main body of the pouring formwork shell. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the outer mold frame in this utility model; Figure 3 This is a schematic diagram of the bottom mold of the base plate in this utility model; Figure 4 This is a partial structural schematic diagram of the present invention.

[0017] In the diagram: 1. Outer formwork frame; 11. Bottom plate formwork; 111. Support frame; 112. Fixing frame; 12. Wing plate formwork; 121. Top beam; 122. Side wing beam; 123. Main connecting beam; 124. Secondary connecting beam; 13. Web side formwork; 131. Main support column; 132. Inclined beam support column; 2. Lifting frame; 21. Balancing frame; 22. Traveling auxiliary lifting rod; 3. Bow-shaped limiting frame; 31. Rebar connection hole; 4. Suspended guide beam. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 - Figure 3 The present invention provides the following technical solution: a continuous cantilever section inner mold support frame, including an outer mold frame 1 and a hoisting frame 2. The outer mold frame 1 is composed of a bottom plate mold 11, a wing plate template 12, and a web plate side mold 13. The bottom plate mold 11 is composed of several support frames 111, and fixed frames 112 are fixedly connected to both sides of the support frames 111. The wing plate template 12 is composed of a top beam 121 and a side wing beam 122, and the side wing beam 122 is fixedly connected to both ends of the top beam 121. The hoisting frame 2 is composed of several main support columns 131 and inclined beam support columns 132. The hoisting frame 2 is located between the wing plate template 12 and the bottom plate mold 11.

[0020] In a specific embodiment of the inner formwork support frame for a continuous cantilever section, the top beam 121 has main connecting crossbeams 123 on both sides of the top, and the side wing beam 122 has a secondary connecting crossbeam 124 on one side.

[0021] Please see Figure 1 The top beam 121 and the side wing beam 122 form a spliced ​​support frame to support the concrete during the pouring process. The side wing beam 122 is spliced ​​with the main connecting beam 123 and several main support columns 131 to form a stable support structure, which improves the shear force generated during concrete pouring and improves the overall stability of the formwork. Multiple outer formwork frames 1 are connected to multiple top beams 121 and side wing beams 122 through the main connecting beam 123 and the secondary connecting beam 124 to form the main body of the pouring formwork shell.

[0022] In a specific embodiment of the inner formwork support frame for a continuous cantilever section, a balance frame 21 is provided on the top of the inner wall of the hoisting frame 2, and a walking auxiliary hoisting rod 22 is provided in the middle of the hoisting frame 2.

[0023] Please see Figure 1 The balance frame 21 is connected to the external steel cable and to the top beam 121. The walking auxiliary hoist 22 is connected to the external steel cable and is tied to the suspension guide beam 4 using the external steel cable. The outer formwork frame 1 is vertically lifted using the walking auxiliary hoist 22.

[0024] In a specific embodiment of the continuous cantilever section inner formwork support frame, the inclined beam support column 132 is distributed between adjacent main support columns 131. One end of the inclined beam support column 132 is fixedly connected to the top of one side of the main support column 131, and the other end of the inclined beam support column 132 is fixedly connected to both sides of the top of the support frame 111.

[0025] Please see Figure 1 The inclined beam support column 132 supports the adjacent main support column 131, thereby improving the support stability of the main support column 131.

[0026] In a specific embodiment of the inner formwork support frame for a continuous cantilever section, the main support column 131 is provided with auxiliary bow-shaped limiting frames 3 at its four corners, and the top and bottom of the auxiliary bow-shaped limiting frames 3 are provided with steel bar connection holes 31.

[0027] Please see Figure 1 When adjacent outer formwork 1 is connected to secondary connecting beam 124 via main connecting beam 123, external reinforcing bars pass through the reinforcing bar connection holes 31 on the bottom of auxiliary bow-shaped limiting frame 3 to assist in the connection of adjacent outer formwork 1, facilitating the splicing of multiple outer formwork 1 in the future. During the suspension process, the reinforcing bars pass through the reinforcing bar connection holes 31 on the bottom of multiple bow-shaped limiting frames 3, and the outer formwork 1 rises along the walking auxiliary lifting rod 22, improving the weight balance of the outer formwork 1 during suspension, improving the stability of the outer formwork 1 during suspension movement and pouring, and facilitating the continuous pouring of concrete in the future.

[0028] In a specific embodiment of the inner formwork support frame for a continuous cantilever section, suspension guide beams 4 are provided on both sides of the bottom of the support frame 111.

[0029] Please see Figure 1 When multiple outer mold frames 1 are spliced ​​into a whole, the suspension guide beam 4 is connected to the upper suspension basket to facilitate the large-scale lifting of batches of outer mold frames 1.

[0030] This utility model provides a continuous cantilever section inner formwork support frame. Specifically, the method of use is as follows: Reinforcing bars are passed through external reinforcing bars and then through the reinforcing bar connection holes 31 at the bottom of the auxiliary bow-shaped limiting frame 3 to assist in the connection of adjacent outer formwork frames 1, facilitating the subsequent splicing of multiple outer formwork frames 1. During suspension, the reinforcing bars pass through the reinforcing bar connection holes 31 at the bottom of multiple bow-shaped limiting frames 3, and the outer formwork frame 1 rises along the walking auxiliary lifting rod 22, improving the weight balance of the outer formwork frame 1 during suspension. During continuous pouring, when lifting subsequent outer formwork frames 1, the balance frame 21 on the outer formwork frame 1 to be installed is connected to the external steel cable and then to the top beam 121. The walking auxiliary lifting rod... 22 is connected to the external steel cable and is tied to the suspension guide beam 4 using the external steel cable. The external formwork 1 is vertically lifted using the walking auxiliary hoist 22, which facilitates the stable transportation and fixation of the external formwork 1. During the pouring process, the top beam 121 and the side wing beam 122 form a spliced ​​support frame to support the concrete during the pouring process. The side wing beam 122 is spliced ​​with the main connecting crossbeam 123 and several main support columns 131 to form a stable support structure, which improves the shear force generated during concrete pouring and improves the overall stability of the formwork. Multiple external formwork 1s are connected to multiple top beams 121 and side wing beams 122 through the main connecting crossbeam 123 and the secondary connecting crossbeam 124 to form the main body of the pouring mold shell.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A continuous cantilever section inner mold support frame, comprising an outer mold frame (1) and a hoisting frame (2), characterized in that: The outer mold frame (1) is composed of a bottom plate mold (11), a wing plate mold (12), and a web side mold (13). The bottom plate mold (11) is composed of several support frames (111). The support frames (111) are fixedly connected to the two sides of the support frames (112). The wing plate mold (12) is composed of a top beam (121) and a side wing beam (122). The side wing beam (122) is fixedly connected to both ends of the top beam (121). The hoisting frame (2) is composed of several main support columns (131) and inclined beam support columns (132). The hoisting frame (2) is located between the wing plate mold (12) and the bottom plate mold (11).

2. The continuous cantilever section inner mold support frame according to claim 1, characterized in that: The top beam (121) has main connecting crossbeams (123) on both sides of the top, and the side wing beam (122) has a secondary connecting crossbeam (124) on one side.

3. The continuous cantilever section inner mold support frame according to claim 1, characterized in that: The top of the inner wall of the hoisting frame (2) is provided with a balance frame (21), and the middle of the hoisting frame (2) is provided with a walking auxiliary hoisting rod (22).

4. The continuous cantilever section inner mold support frame according to claim 1, characterized in that: The inclined beam support column (132) is distributed between adjacent main support columns (131). One end of the inclined beam support column (132) is fixedly connected to the top of one side of the main support column (131), and the other end of the inclined beam support column (132) is fixedly connected to both sides of the top of the support frame (111).

5. The continuous cantilever section inner mold support frame according to claim 1, characterized in that: The main support column (131) is provided with auxiliary bow-shaped limiting frames (3) at its four corners, and the auxiliary bow-shaped limiting frames (3) are provided with steel bar connection holes (31) at the top and bottom.

6. The continuous cantilever section inner mold support frame according to claim 1, characterized in that: The support frame (111) is provided with suspension guide beams (4) on both sides of the bottom.

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