High formwork frame body overhanging supporting device and C-shaped stockyard track platform construction method

Abstract

The invention relates to a high-formwork-erecting frame body overhanging supporting device and a C-shaped stockyard track platform construction method.The high-formwork-erecting frame body overhanging supporting device comprises a reserved hole formed in a middle retaining wall below a track platform, a first cross beam is connected into the reserved hole in a penetrating mode, and the two ends of the first cross beam extend out of the reserved hole; second cross beams are arranged above the two ends of the first cross beam respectively, overhanging scaffolds are arranged on the second cross beams, the lower ends of the overhanging scaffolds are connected with the second cross beams through lower adjustable supports, and through-wall pipes are further connected to the reserved holes in a penetrating mode. The two ends of the through-wall pipe extend out of the reserved hole and are connected with the high-formwork scaffolds on the two sides of the middle retaining wall through buckles, upper adjustable supports are arranged at the upper ends of the overhanging scaffold and the high-formwork scaffolds, and a bottom formwork of the track platform is arranged on the upper adjustable supports. The problem that the deformation concrete interface cannot support the frame body from the ground is solved, the use difficulty is reduced, and the construction quality is improved.

Description

Technical Field

[0001] The invention relates to a formwork scaffold, in particular to a cantilever support device of a high-support formwork body and a construction method of a C-type material yard track platform. Background Art

[0002] At present, with the improvement of mechanization, the C-type material yard storage and transportation mode is gradually and widely used in large and medium-sized steel enterprises with its small footprint and high volume ratio. The method, stability, large-volume concrete construction technology and reasonable cost reduction and efficiency improvement of the high-support formwork support system in its construction are several important technical difficulties that need to be overcome. In particular, the middle retaining wall below the track platform of the C-type material yard has a high-support formwork concrete structure with an "eight"-shaped deformed cross-section. Since the middle retaining wall at the bottom is narrow at the top and wide at the bottom, when the bottom formwork of the track platform is supported, it is impossible to support the frame from the ground, which increases the construction difficulty of the track platform and makes it difficult to ensure the quality and stability of the formwork. Summary of the invention

[0003] The purpose of the present invention is to provide a cantilever support device for a high-support formwork frame and a construction method for a C-type material yard track platform to solve the problem that it is difficult to ensure the quality and stability of the formwork during the construction of the existing high-support formwork concrete structure with an "eight"-shaped deformed cross-section of the intermediate retaining wall.

[0004] The present invention is achieved as follows: a cantilever support device for a high-support formwork frame, including a reserved hole arranged on an intermediate retaining wall below a track platform, a first crossbeam is inserted in the reserved hole, two ends of the first crossbeam extend out of the reserved hole, a second crossbeam is respectively arranged above the two ends of the first crossbeam, a cantilever scaffold is arranged on the second crossbeam, the lower end of the cantilever scaffold is connected to the second crossbeam through a lower adjustable support, a wall-penetrating pipe is also inserted in the reserved hole, two ends of the wall-penetrating pipe extend out of the reserved hole and are connected to the high-support formwork scaffolds on both sides of the intermediate retaining wall through buckles, upper adjustable supports are arranged at the upper ends of the cantilever scaffold and the high-support formwork scaffold, and the bottom formwork of the track platform is arranged on the upper adjustable support.

[0005] Furthermore, the first crossbeam and the second crossbeam are both I-beams.

[0006] Furthermore, two baffles are respectively provided at upper portions of both ends of the first crossbeam, the two baffles are respectively located on both sides of the second crossbeam, and the baffles are welded and fixed to the first crossbeam.

[0007] Furthermore, first wooden wedges are respectively arranged at both ends of the reserved hole, and the first wooden wedges are arranged between the first crossbeam and the top surface of the reserved hole.

[0008] Furthermore, a third crossbeam is arranged on the top of the upper adjustable support, and a second wooden wedge is arranged between the third crossbeam and the bottom mold.

[0009] Furthermore, the cantilever scaffolding and the high-formwork scaffolding both include vertical poles, horizontal poles and diagonal braces.

[0010] The invention also discloses a C-type material yard track platform construction method, which includes the following steps.

[0011] a. During the construction of the middle retaining wall, high-support formwork bodies are set up on both sides of the middle retaining wall. The high-support formwork bodies are always set up higher than the construction height of the middle retaining wall.

[0012] b. When constructing the middle retaining wall below the track platform, a reserved opening is set on the middle retaining wall, and the reserved opening horizontally passes through the middle retaining wall.

[0013] c. The first crossbeam is inserted into the reserved opening, and both ends of the first crossbeam are symmetrically exposed outside the reserved opening for a certain length.

[0014] d. Level the first beam and use the first wooden wedge to wedge the upper part of both ends of the first beam.

[0015] e. Insert the through-wall pipe into the reserved hole, and use clips to connect the two ends of the through-wall pipe to the high-support formwork bodies on both sides of the middle retaining wall.

[0016] f. Set up the second beam on the upper part of both ends of the first beam and align it.

[0017] g. Baffles are respectively arranged on both sides of the second cross beam and are welded and fixed to the upper part of the first cross beam.

[0018] h. Install the lower adjustable support on the second cross beam, and install the cantilever scaffolding on the lower adjustable support.

[0019] i. Install top adjustment supports and bottom formwork on the top of the cantilever scaffolding and high support formwork.

[0020] j. Tie up the steel bars of the track platform and pour concrete.

[0021] Furthermore, the cantilever scaffolding and the high-support formwork body are both socket-and-spigot type disc-lock scaffoldings.

[0022] Furthermore, in step i, a third crossbeam is arranged on the top of the upper adjustable support, and a second wooden wedge is arranged between the third crossbeam and the bottom mold, and the ground is tightened by the upper adjustable support and the second wooden wedge.

[0023] The present invention is applicable to high-support formwork concrete structures whose deformed cross-section of retaining walls is in the shape of an "eight". To ensure that the bottom formwork support of the track platform meets the force requirements, a cantilever scaffold is set up from a reserved hole below it for support, thereby ensuring the support stability of the inner end of the bottom formwork. This solves the problem that the deformed (narrow at the top and wide at the bottom) concrete interface cannot support the frame from the ground, reduces the difficulty of use and improves the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a transverse elevation schematic diagram of the concrete structure of the C material yard of the present invention.

[0025] Figure 2 It is a schematic transverse elevation diagram of the high-support formwork body of the C material yard of the present invention.

[0026] Figure 3 It is a detailed view of the transverse elevation nodes of the cantilever support device of the high-support formwork body of the present invention.

[0027] Figure 4 It is a schematic longitudinal elevation diagram of a cantilever support device for a local high-support formwork body of the present invention.

[0028] In the figure: 1. middle retaining wall; 2. track platform; 3. unloading platform; 4. side retaining wall; 5. high formwork frame; 6. reserved opening; 7. first crossbeam; 8. second crossbeam; 9. lower adjustable support; 10. cantilever scaffolding; 11. wall-penetrating pipe; 12. buckle; 13. baffle bar; 14. first wooden wedge; 15. upper adjustable support; 16. third crossbeam; 17. second wooden wedge; 18. bottom formwork; 19. vertical pole; 20. cross bar; 21. diagonal rod. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] like Figure 1As shown, the C-type material yard includes an intermediate retaining wall 1, a track platform 2, a discharge platform 3 and a side retaining wall 4, wherein the intermediate retaining wall 1 is narrow at the top and wide at the bottom. If a traditional high-formwork support system is adopted, the inner part of the track platform 2 cannot be supported by a high-formwork support from the bottom.

[0032] To solve this problem, Figures 2 to 4 As shown, the present invention first proposes a cantilever support device for a high-support formwork frame 5. For the two side parts of the middle retaining wall 1, a traditional high-support formwork support system is adopted, and for the part where the support system cannot be supported from the bottom, a cantilever support method is adopted.

[0033] The cantilever support device of the high-support formwork frame 5 of the present invention not only bears the load of the platform with an elevation of 12.8 meters, but also bears the load of the unloading platform 3 with an elevation of 22 meters. The force and overall stability requirements of the frame are relatively high.

[0034] like Figure 3 , Figure 4 As shown, the cantilever support device of the high-support formwork body 5 includes a reserved hole 6 arranged on the middle retaining wall 1 below the track platform 2, and the reserved holes 6 are arranged at equal intervals along the length direction of the middle retaining wall 1, and a first crossbeam 7 is respectively passed through each reserved hole 6, and both ends of the first crossbeam 7 are respectively extended to a certain length outside the reserved hole 6, and second crossbeams 8 are respectively arranged above both ends of the first crossbeam 7, and the second crossbeams 8 on both sides are symmetrically arranged, and the second crossbeams 8 span multiple first crossbeams 7, and the length direction of the second crossbeam 8 is consistent with the length direction of the middle retaining wall 1.

[0035] A cantilever scaffolding 10 is arranged along the length direction of the second cross beam 8. The lower end of the cantilever scaffolding 10 is connected to the second cross beam 8 through a lower adjustable support 9. The lower adjustable support 9 is inverted on the second cross beam 8. The U-shaped retaining edge of the support is used to limit the movement on the second cross beam 8 to ensure that the force point is centered.

[0036] A through-wall pipe 11 is also connected to the reserved hole 6. The through-wall pipe 11 is a steel pipe. Both ends of the through-wall pipe 11 extend out of the reserved hole 6 and are connected to the high-formwork scaffolding on both sides of the middle retaining wall 1 through buckles 12. There are at least two connection nodes between the through-wall pipe 11 and the high-formwork scaffolding to ensure the overall stability of the frame.

[0037] An upper adjustable support 15 is provided at the upper end of the cantilever scaffolding 10 and the high-formwork scaffolding, and a bottom formwork 18 of the track platform 2 is provided on the upper adjustable support 15. The bottom formwork 18 of the track platform 2 is supported by the cantilever scaffolding 10 and the high-formwork scaffolding together, thereby ensuring the stability of the bottom formwork 18.

[0038] The first cross beam 7 and the second cross beam 8 are both I-beams, which have excellent supporting capabilities, and space-penetrating wall tubes 11 are provided on both sides of the web of the I-beam.

[0039] In order to stably place the second cross beam 8 on the first cross beam 7, a stop bar 13 is provided above the end of the first cross beam 7. The stop bar 13 is located on both sides of the second cross beam 8 and can effectively limit the movement of the second cross beam 8. The stop bar 13 can be round steel and is fixed to the top plate of the first cross beam 7 by welding.

[0040] First wooden wedges 14 are respectively arranged at both ends of the reserved hole 6 . The first wooden wedges 14 are arranged between the first crossbeam 7 and the top surface of the reserved hole 6 . The first crossbeam 7 is wedged tightly by the two first wooden wedges 14 .

[0041] A third crossbeam 16 is arranged on the top of the upper adjustable support 15 , and a second wooden wedge 17 is arranged between the third crossbeam 16 and the bottom mold 18 . The bottom mold 18 is tightened by adjusting the upper adjustable support 15 and the second wooden wedge 17 .

[0042] The cantilever scaffold 10 and the high-formwork scaffold both include vertical poles 19 , horizontal poles 20 and diagonal braces 21 .

[0043] The present invention also discloses a construction method of a C-type material yard track platform 2, which includes the following steps.

[0044] a. During the construction of the intermediate retaining wall 1, high-support formwork bodies 5 are set up on both sides of the intermediate retaining wall 1. The high-support formwork bodies 5 are always set up at a construction height higher than the intermediate retaining wall 1.

[0045] Among them, the concrete pouring construction adopts the construction technology of longitudinal segmentation, height stratification, skipping bin method process, and cancellation of post-casting strip. The high-support formwork body 5 is always set higher than the construction height of the retaining wall (2 meters, a standard section), and synchronous flow construction is carried out.

[0046] b. When constructing the intermediate retaining wall 1 below the track platform 2, a reserved opening 6 is set on the intermediate retaining wall 1, and the reserved opening 6 horizontally penetrates the intermediate retaining wall 1.

[0047] According to the spacing of the steel bars in the retaining wall structure, installation at a suitable location and design calculation, reserved openings 6 are provided.

[0048] c. The first crossbeam 7 is inserted into the reserved hole 6, and both ends of the first crossbeam 7 are symmetrically exposed outside the reserved hole 6 for a certain length.

[0049] d. Level the first beam 7 and use the first wooden wedges 14 to wedge the upper parts of both ends of the first beam 7 tightly.

[0050] e. Insert the wall-penetrating pipe 11 into the reserved hole 6, and use the buckle 12 to connect the two ends of the wall-penetrating pipe 11 to the high-support formwork bodies 5 on both sides of the middle retaining wall 1 respectively.

[0051] f. Set the second beam 8 on the upper part of both ends of the first beam 7 and align them.

[0052] g. Baffles 13 are respectively arranged on both sides of the second beam 8 and the baffles 13 are welded and fixed to the upper part of the first beam 7.

[0053] h. Install a lower adjustable support 9 on the second cross beam 8, and install a cantilever scaffolding 10 on the lower adjustable support 9.

[0054] i. A top adjustment support and a bottom formwork 18 are installed on the top of the cantilever scaffolding 10 and the high-support formwork body 5.

[0055] j. Tie up the steel bars of track platform 2 and pour concrete.

[0056] The cantilever scaffolding 10 and the high-support formwork body 5 are both socket-and-spigot type disc-lock scaffoldings.

[0057] In step i, a third crossbeam 16 is arranged on the top of the upper adjustable support 15, and a second wooden wedge 17 is arranged between the third crossbeam 16 and the bottom mold 18, and the ground is pressed tightly by the upper adjustable support 15 and the second wooden wedge 17.

[0058] Through the safety calculation of the force on the platform with an elevation of 12.8 meters, it is found that there must be no less than 4 rows of columns on both sides of the retaining wall, and in order to ensure the stability of the frame, the two sides need to be connected into a whole. The second row of support frames at the bottom are only 251 mm away from the edge of the concrete structure, and the first row of support frames cannot touch the ground. Combined with the characteristics of the structure itself, at an elevation of 9.25 meters, the first row of frames is 150 mm away from the surface of the concrete structure, meeting the conditions for installing the frame.

[0059] Therefore, through the research and analysis of the characteristics of the structure itself, the planning of the entire project materials and the cost, the use of this patented frame cantilever device and method of use is the most economical and applicable. The HW steel through the wall is used as the main load-bearing beam of the first row of supporting frames facing the wall (uniformly distributed in the longitudinal direction @ 4.5 meters), and the 20a I-beam located on the HW steel through the wall is used as the supporting beam in the longitudinal direction, and other auxiliary facilities are used to form this patented device to achieve the use function.

[0060] The present invention has a simple structure, is easy to install and dismantle, is economical and applicable, and the main materials can be reused, thereby reducing the construction cost. The present invention is applicable to a high-support formwork concrete structure with a deformed cross section of an "eight"-shaped retaining wall. In order to ensure that the support of the bottom formwork 18 of the track platform 2 meets the force requirements, a cantilever scaffold 10 is set from the reserved hole 6 below it to ensure the support stability of the inner end of the bottom formwork 18, thereby solving the problem that the deformed (narrow at the top and wide at the bottom) concrete interface cannot support the frame from the ground, reducing the difficulty of use and improving the construction quality.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cantilever support device for a high-rise formwork, characterized in that: It includes a reserved hole arranged on the middle retaining wall below the track platform, a first crossbeam is connected in the reserved hole, two ends of the first crossbeam extend out of the reserved hole, second crossbeams are respectively arranged above the two ends of the first crossbeam, a cantilever scaffold is arranged on the second crossbeam, the lower end of the cantilever scaffold is connected to the second crossbeam through a lower adjustable support, a wall-penetrating pipe is also connected in the reserved hole, two ends of the wall-penetrating pipe extend out of the reserved hole and are connected to the high-support formwork scaffolds on both sides of the middle retaining wall through buckles, upper adjustable supports are arranged at the upper ends of the cantilever scaffold and the high-support formwork scaffold, and the bottom formwork of the track platform is arranged on the upper adjustable support.

2. The cantilever support device of the high-rise formwork according to claim 1 is characterized in that: The first crossbeam and the second crossbeam are both I-beams.

3. The cantilever support device of the high-rise formwork according to claim 1 is characterized in that: Two baffles are respectively arranged on the upper parts of both ends of the first cross beam, the two baffles are respectively located on both sides of the second cross beam, and the baffles are welded and fixed to the first cross beam.

4. The cantilever support device for high-rise formwork according to claim 1, characterized in that: First wooden wedges are respectively arranged at both ends of the reserved hole, and the first wooden wedges are arranged between the first crossbeam and the top surface of the reserved hole.

5. The cantilever support device for high-rise formwork according to claim 1, characterized in that: A third crossbeam is arranged on the top of the upper adjustable support, and a second wooden wedge is arranged between the third crossbeam and the bottom mold.

6. The cantilever support device for high-rise formwork according to claim 1, characterized in that: The cantilever scaffold and the high formwork scaffold both include vertical poles, horizontal poles and diagonal braces.

7. A C-type material yard track platform construction method, characterized in that: The following steps are involved: a. Carry out the construction of the middle retaining wall. During the construction process, high-support formwork bodies are set up on both sides of the middle retaining wall. The high-support formwork bodies are always set up higher than the construction height of the middle retaining wall; b. When constructing the middle retaining wall below the track platform, a reserved opening is set on the middle retaining wall, and the reserved opening horizontally penetrates the middle retaining wall; c. The first crossbeam is inserted into the reserved opening, and both ends of the first crossbeam are symmetrically exposed outside the reserved opening for a certain length; d. Level the first beam and use the first wooden wedge to wedge the upper parts of both ends of the first beam tightly; e. Insert the through-wall pipe into the reserved hole, and use buckles to connect the two ends of the through-wall pipe to the high-support formwork bodies on both sides of the middle retaining wall; f. Set up the second beams at the upper parts of both ends of the first beam and align them; g. The guard bars are respectively provided on both sides of the second beam and are welded and fixed to the upper portion of the first beam; h. Install the lower adjustable support on the second crossbeam, and install the cantilever scaffolding on the lower adjustable support; i. Install top adjustment supports and bottom formwork on the top of the cantilever scaffolding and high formwork frame; j. Tie the track platform steel bars and pour concrete.

8. The C-type material yard track platform construction method according to claim 7, characterized in that: The cantilever scaffolding and the high-support formwork body are both socket-and-spigot type disc-lock scaffoldings.

9. The C-type material yard track platform construction method according to claim 7, characterized in that: In step i, a third crossbeam is arranged on the top of the upper adjustable support, and a second wooden wedge is arranged between the third crossbeam and the bottom mold, and the ground is pressed tight by the upper adjustable support and the second wooden wedge.

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