Concrete cone bucket slope filling construction method, slope filling scaffold and slope filling formwork system

Abstract

The invention discloses a concrete cone bucket slope filling construction method, a slope filling scaffold and a slope filling formwork system.The construction method comprises the steps that connecting steel bars are pre-buried in top beams and the upper side walls of four concrete cone buckets which are poured in advance, and the slope filling scaffold is erected with the inner walls of the concrete cone buckets as fulcrums; erecting a slope filling template system, and fixing the slope filling template system through the connection of an opposite-pull screw rod and the connecting reinforcing steel bars; concrete is poured into the space defined by the slope filling formwork system, the top beam and the side wall through a pouring opening piece arranged at the upper end of the slope filling formwork system to form a concrete cone bucket filling slope; and after maintenance is completed, the slope filling formwork system and the slope filling scaffold are dismantled. By standardizing erection of the slope filling scaffold and fixing of the slope filling formwork system through the split screws, the erecting rigidity of the cone bucket slope filling formwork system and the compactness of top concrete are effectively improved, and the pouring quality of cone bucket slope filling is improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a concrete cone-shaped slope filling construction method, as well as slope filling scaffolding and slope filling formwork system. Background Technology

[0002] Concrete cone-shaped slopes are a common component in silo structures such as grain depots. Their characteristic feature is that the width of the cone-shaped slope gradually decreases from bottom to top. Construction typically needs to be completed after the main concrete cone and silo structure is finished. Due to the stability of the scaffolding and the shape of the cone-shaped slope, construction is quite difficult. In existing technologies, significant problems exist in the construction of this part, mainly due to insufficient stability of the formwork system, making it prone to deformation under the lateral pressure of the concrete. Furthermore, the narrow area at the top of the cone-shaped slope makes venting and pouring difficult, hindering concrete compaction and easily leading to quality defects such as voids. Improvements are urgently needed. Summary of the Invention

[0003] The purpose of this invention is to provide a concrete cone-shaped slope filling construction method, as well as a slope filling scaffolding and slope filling formwork system, to enhance the stability of the concrete cone-shaped slope filling formwork system, provide a reliable working surface, increase the support rigidity of the cone-shaped slope filling formwork system and the compactness of the top concrete, and improve the pouring quality of the cone-shaped slope filling.

[0004] To solve the above-mentioned technical problems, the present invention provides a technical solution as follows: a concrete cone-shaped slope filling construction method, comprising the following steps: S1: pre-embedding connecting steel bars at the top beam and upper side wall of four pre-cast concrete cones, the connecting steel bars extending outward toward the slope of the cone-shaped slope filling; S2: erecting slope filling scaffolding with the inner wall of the concrete cone as a fulcrum; S3: erecting a slope filling formwork system, the slope filling formwork system being fixed by connecting the connecting steel bars with tie rods; S4: pouring concrete through the pouring port provided at the upper end of the slope filling formwork system into the space enclosed by the slope filling formwork system, the top beam, and the side wall to form a concrete cone-shaped slope filling; S5: after the concrete cone-shaped slope filling is cured, dismantling the slope filling formwork system and the slope filling scaffolding.

[0005] Furthermore, the erection of the slope-filling scaffold in step S2 includes: placing the first horizontal bar of the slope-filling scaffold horizontally on the upper surface of the concrete cone; sequentially installing the inner upright, the second horizontal bar, the outer upright, and the third horizontal bar, with the second and third horizontal bars parallel to the first horizontal bar, and the inner and outer uprights perpendicular to the first horizontal bar; and the inner upright extending longitudinally to the first, second, and third horizontal bars, and the outer upright extending longitudinally to the second and third horizontal bars; shear bracing is intersecting between the inner uprights, and diagonal bracing is provided between the outer upright and the third horizontal bar to form a stable support system.

[0006] Furthermore, the spacing between the uprights of the slope-filling scaffold is 800mm-1000mm, the step distance is 1800mm-2200mm, and the angle between the inclined support and the horizontal plane is 45°-70°.

[0007] Furthermore, the slope filling formwork system described in step S3 includes: welding and fixing one end of the tie rod to the free end of the connecting steel bar; and installing the formwork at a preset position along the slope of the cone-shaped filler. Pads and steel pipes are set on the surface of the template as back ribs; the tie rods penetrate the template and the back ribs and fix them, so that the slope filling template system forms a whole.

[0008] Furthermore, the template thickness is 10-20mm, the spacing of the pads is 600-800mm, and the spacing of the steel pipes is 500-700mm.

[0009] Furthermore, the spacing of the tie rods is set to (250mm-350mm) × (550mm-650mm).

[0010] Furthermore, in step S4, the outer opening of the pouring nozzle is at a horizontal height higher than the upper surface of the cone-shaped filler. Lightweight aggregate concrete is pumped into the pouring nozzle and then vibrated.

[0011] Furthermore, the bottom width of the cone-shaped filler is 1900mm, the height is 2687mm, and the angle between its inclined plane and the horizontal plane is 54.75°±2°.

[0012] To solve the above-mentioned technical problems, the present invention also provides a slope-filling scaffold for implementing the concrete cone-shaped slope-filling construction method described in any of the above-mentioned methods, comprising: a first horizontal bar resting on the concrete cone; an inner vertical bar and an outer vertical bar connected perpendicularly to the first horizontal bar; a second horizontal bar and a third horizontal bar arranged parallel to the first horizontal bar; wherein, shear bracing to increase stability is provided between the inner vertical bars, and diagonal bracing is provided between the outer vertical bar and the third horizontal bar.

[0013] To solve the above-mentioned technical problems, the present invention also provides a slope filling formwork system for implementing the concrete cone slope filling construction method described in any of the above-mentioned methods. The system includes: a formwork set along the slope of the cone slope, wherein the surface of the formwork is provided with pads and steel pipes in a crisscross pattern, wherein the pads are located between the formwork and the steel pipes, and the upper end of the formwork is provided with a pouring port, wherein the pouring port is provided with a concrete guiding structure higher than the pouring surface, and tie rods penetrate the steel pipes and the formwork. One end of the tie rods is fixedly connected to the connecting steel bars, and the other end is locked to the steel pipes by fasteners, thereby forming a rigidly connected and stable whole of the slope filling formwork system.

[0014] The present invention provides a concrete cone-shaped slope filling construction method, slope filling scaffolding, and slope filling formwork system. Compared with the prior art, the method enhances the stability of the scaffolding by erecting the scaffolding at the slope filling point with the inner wall of the concrete cone as the fulcrum, and provides a reliable working surface. The slope filling formwork system, which is fixed by connecting tie rods and connecting steel bars, and the setting of the pouring port at the upper end of the formwork, effectively enhance the support rigidity of the cone-shaped slope filling formwork system and the compactness of the top concrete, thereby improving the pouring quality of the cone-shaped slope filling. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0016] Figure 1 This is a flowchart of the concrete cone-shaped slope filling construction method in an embodiment of the present invention; Figure 2 This is a schematic diagram of the concrete four-cone bucket planar structure in an embodiment of the present invention; Figure 3 For the appendix Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 4 This is a schematic diagram of the four-cone hopper and the cone hopper slope filling planar structure in an embodiment of the present invention; Figure 5 For the appendix Figure 4 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 6-8 This is a step-by-step schematic diagram of the scaffolding erection process for slope filling in an embodiment of the present invention; Figure 9 This is a schematic cross-sectional view of the slope filling scaffolding and slope filling formwork system in an embodiment of the present invention; Figure 10 This is an enlarged cross-sectional schematic diagram of the slope filling template system in an embodiment of the present invention; Figure 11 This is a partial schematic diagram of the planar structure of the slope filling formwork system in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Concrete cone; 11. Top beam; 12. Side wall; 2. Slope filling scaffold; 21. First horizontal bar; 22. Inner upright; 23. Second horizontal bar; 24. Outer upright; 25. Third horizontal bar; 26. Shear brace; 27. Diagonal brace; 3. Slope filling formwork system; 31. Formwork; 32. Pouring port fitting; 33. Spacer block; 34. Steel pipe; 35. Tie rod; 4. Connecting reinforcement; 5. Cone filling. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0019] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] like Figure 2-5 As shown, the concrete cone hopper 1 and the cone hopper slope 5 are components of the grain unloading cone hopper of the silo. During construction, the concrete cone hopper 1 is poured first, and the cone hopper slope 5 is poured after the main silo construction is completed.

[0021] like Figure 1-11 As shown, one embodiment of the present invention relates to a method for constructing a concrete cone-shaped slope, which achieves precise forming of the concrete cone-shaped slope 5 through the systematic cooperation of the slope-filling scaffold 2 and the slope-filling formwork system 3. The construction process includes the following steps: First, connecting steel bars 4 are pre-embedded in the top beam 11 and upper side wall 12 of the four pre-cast concrete cones 1. The connecting steel bars 4 extend outward toward the slope of the cone filling slope 5. Secondly, a slope-filling scaffold 2 is erected using the inner wall of the concrete cone 1 as a fulcrum; Then, work is carried out on the completed slope filling scaffold 2 to erect the slope filling formwork system 3. The slope filling formwork system 3 is fixed by the connection of the tie rod 35 and the connecting steel bar 4. Under the action of the tie rod 35, the slope filling formwork system 3 forms a rigid and stable whole to ensure stable support during the pouring of the cone-shaped slope filling 5 and to achieve the precise forming of the concrete cone-shaped slope filling 5. Secondly, after the slope filling formwork system 3 is erected, concrete is poured through the pouring port 32 set at the upper end of the slope filling formwork system 3 into the space enclosed by the slope filling formwork system 3, the top beam 11 and the side wall 12 to form a concrete cone-shaped slope filling 5. In one example, in order to ensure the compactness of the concrete pouring of the cone-shaped slope filling 5, the horizontal height of the outer opening of the pouring port 32 should be higher than the upper surface of the cone-shaped slope filling 5. The pouring port 32 forms a scoop-shaped pouring port, which constitutes a concrete guiding structure higher than the pouring surface. The pouring of the cone-shaped slope filling 5 is carried out by pumping lightweight aggregate concrete through the pouring port of the slope filling formwork system 3 and vibrating it.

[0022] Finally, after the concrete cone-shaped slope filling 5 has been cured, the slope filling formwork system 3 is removed, the concrete near the pouring opening is cleaned up, and the slope filling scaffold 2 is removed. The construction of the concrete cone-shaped slope filling 5 is now complete.

[0023] like Figure 6-8 As shown, in one embodiment, a method for constructing a concrete cone-shaped slope filling is provided. The process of erecting the slope filling scaffold 2 is as follows: First, the first horizontal bar 21 of the slope filling scaffold 2 is placed horizontally on the upper surface of the concrete cone 1 to form a rectangular bottom frame. Then, an inner upright 22 is installed and fixed vertically to the first horizontal bar 21, a second horizontal bar 23 is installed horizontally vertically to the inner upright bar 22, and an outer upright 24 is installed and fixed vertically to the second horizontal bar 23. The inner upright bar 22 and the outer upright bar 24 are progressively further apart from the central axis of the slope filling scaffold 2. A third horizontal bar 25 is installed and fixed horizontally at the upper ends of the inner upright bar 22 and the outer upright bar 24. The inner upright bar 22 extends longitudinally to the first horizontal bar 21, the second horizontal bar 23, and the third horizontal bar 25, and the outer upright bar 24 extends longitudinally to the second horizontal bar 23 and the third horizontal bar 25. Shear braces 26 are intersecting between the inner upright bars 22, and diagonal braces 27 are set between the outer upright bar 24 and the third horizontal bar 25, thereby forming a stable support system. Preferably, the spacing between the uprights of the slope filling scaffold 2 is 800mm-1000mm, the step distance is 1800mm-2200mm, and the angle between the inclined support 27 and the horizontal plane is 45°-70°.

[0024] like Figure 9-11 As shown, in one embodiment, a method for constructing a concrete cone-shaped slope filling is provided. The process of setting up the slope filling formwork system 3 is as follows: First, one end of the tie rod 35 is welded and fixed to the free end of the connecting steel bar 4. Then, the formwork 31 is installed at a preset position along the slope of the cone-shaped slope 5. A pouring port 32 is installed on the upper end of the formwork 31 to form a pouring port. A pad 33 and a steel pipe 34 are set on the surface of the formwork 31 as back ribs. The other end of the tie rod 35 penetrates the formwork 31 and the back ribs and is fastened and fixed by fasteners, so that the slope filling formwork system 3 forms a stable whole. Preferably, the template 31 is 10-20mm thick, the pads 33 are made of long wooden strips with a spacing of 600-800mm, the steel pipes 34 are set perpendicular to the wooden strips with a spacing of 500-700mm, and the tie rods 35 are set with a spacing of (250mm-350mm)×(550mm-650mm). Thus, the pads 33 and the steel pipes 34 form a stable support structure with interwoven longitudinal and transverse lines to support the template 31.

[0025] In one embodiment, taking a grain depot silo structure as an example, the concrete cone hopper 1 and the concrete cone hopper slope 5 are located at the lower end of the silo structure. The top elevation of the concrete cone hopper 1 is +5.600m, and the bottom width of the concrete cone hopper slope 5 is 1900mm, the height is 2687mm, and it forms an angle of 54.75°±2° with the horizontal plane. During the construction of the concrete cone hopper 1, Φ14 steel bars are pre-embedded in its beams and slabs. After the main structure of the silo is completed, a slope-filling scaffold 2 is erected. The uprights of the slope-filling scaffold 2 are spaced 900×900mm apart, and the step distance is 2000mm. Then, with the help of the slope-filling scaffold 2, a slope-filling formwork system 3 is erected. The formwork 31 is 15mm thick, the pads 33 are made of long strips of wood with a diameter of 40×80mm, the spacing of the wood is 700mm, and the spacing of the steel pipes 34 is 600mm. One end of the Φ14 tie rod 35 is welded and fixed to the connecting steel bar 4, and the other end penetrates the formwork 31 and the steel pipe 34 and is fastened with fasteners, so that the slope-filling formwork system 3 forms a rigid whole. The ground pump pumps the lightweight aggregate concrete into the pouring port above the formwork 31 and then pours and compacts it. After curing, the slope-filling formwork system 3 and the scaffold are dismantled, and the construction of the cone hopper slope filling 5 is completed. According to the construction method provided by this invention, after comprehensive evaluation by professional technicians such as budgeters and construction workers, it can save 50,000 yuan in labor costs and effectively shorten the construction period by more than 15 days in the construction of a 120,000-ton silo structure grain depot.

[0026] like Figure 8 As shown, one embodiment of the present invention relates to a slope-filling scaffold 2 for implementing the above-mentioned concrete cone-shaped slope-filling construction method, including a first horizontal bar 21 resting on a concrete cone 1, an inner vertical bar 22 and an outer vertical bar 24 vertically connected to the first horizontal bar 21; a second horizontal bar 23 and a third horizontal bar 25 arranged parallel to the first horizontal bar 21, wherein a shear brace 26 for increasing stability is provided between the inner vertical bars 22, and an inclined support 27 is provided between the outer vertical bar 24 and the third horizontal bar 25.

[0027] like Figure 10-11 As shown, one embodiment of the present invention relates to a slope filling formwork system 3 for implementing the above-mentioned concrete cone slope filling construction method. It includes a formwork 31 arranged along the inclined surface of the cone slope 5. The surface of the formwork 31 is crisscrossed with pads 33 and steel pipes 34, wherein the pads 33 are located between the formwork 31 and the steel pipes 34. A pouring port 32 is provided at the upper end of the formwork 31. The pouring port 32 has a concrete guiding structure higher than the pouring surface. A tie rod 35 penetrates the steel pipe 34 and the formwork 31. One end of the tie rod 35 is fixedly connected to a connecting steel bar 4, and the other end is locked to the steel pipe 34 by fasteners, thereby forming a rigidly connected and stable whole, the slope filling formwork system 3.

[0028] The present invention provides a concrete cone-shaped slope filling construction method, slope filling scaffolding, and slope filling formwork system. By erecting scaffolding at the slope filling location with the inner wall of the concrete cone as the fulcrum, the stability of the scaffolding is enhanced, providing a reliable working surface. The slope filling formwork system, which is fixed by connecting tie rods and connecting steel bars, and the setting of pouring openings at the upper end of the formwork, effectively enhance the support rigidity of the cone-shaped slope filling formwork system and the compactness of the top concrete, thereby improving the pouring quality of the cone-shaped slope filling.

[0029] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the claims.

Claims

1. A method for constructing a concrete cone-shaped slope filling structure, characterized in that, Includes the following steps: S1: Pre-embed connecting steel bars (4) at the top beam (11) and upper side wall (12) of the four concrete cones (1) that have been poured in advance. The connecting steel bars (4) extend outward toward the slope of the cone filling slope (5). S2: Erect a slope-filling scaffold (2) with the inner wall of the concrete cone (1) as the fulcrum; S3: Erect a slope filling formwork system (3), which is fixed by connecting the tie rod (35) to the connecting steel bar (4); S4: Concrete is poured into the space enclosed by the slope filling formwork system (3), the top beam (11) and the side wall (12) through the pouring port (32) set at the upper end of the slope filling formwork system (3) to form a concrete cone slope filling (5); S5: After the concrete cone-shaped slope filling (5) is cured, the slope filling formwork system (3) and the slope filling scaffolding (2) are removed.

2. The concrete cone-shaped slope filling construction method according to claim 1, characterized in that, The erection of slope-filling scaffolding (2) in step S2 includes: The first horizontal bar (21) of the slope filling scaffold (2) is placed horizontally on the upper surface of the concrete cone (1); The inner upright (22), the second horizontal bar (23), the outer upright (24), and the third horizontal bar (25) are installed in sequence. The second horizontal bar (23) and the third horizontal bar (25) are parallel to the first horizontal bar (21), and the inner upright (22) and the outer upright (24) are perpendicular to the first horizontal bar (21). The inner upright (22) extends longitudinally to the first horizontal bar (21), the second horizontal bar (23), and the third horizontal bar (25), and the outer upright (24) extends longitudinally to the second horizontal bar (23) and the third horizontal bar (25). Shear braces (26) are intersecting between the inner uprights (22), and diagonal braces (27) are provided between the outer uprights (24) and the third crossbar (25) to form a stable support system.

3. The concrete cone-shaped slope filling construction method according to claim 2, characterized in that, The spacing between the uprights of the slope-filling scaffold (2) is 800mm-1000mm, the step distance is 1800mm-2200mm, and the angle between the inclined support (27) and the horizontal plane is 45°-70°.

4. The concrete cone-shaped slope filling construction method according to claim 1, characterized in that, The slope filling formwork system (3) mentioned in step S3 includes: Weld one end of the tie rod (35) to the free end of the connecting steel bar (4) for fixation; Install template (31) at the preset position on the slope of the cone-shaped fill (5); Pads (33) and steel pipes (34) are provided on the surface of the template (31) as back ribs; The tie rod (35) penetrates the template (31) and the back rib and fixes them, so that the slope filling template system (3) forms a whole.

5. The concrete cone-shaped slope filling construction method according to claim 4, characterized in that, The template (31) is 10-20mm thick, the spacing of the pads (33) is 600-800mm, and the spacing of the steel pipes (34) is 500-700mm.

6. The concrete cone-shaped slope filling construction method according to claim 1, characterized in that, The spacing of the tie rods (35) is set to (250mm-350mm) × (550mm-650mm).

7. The concrete cone-shaped slope filling construction method according to claim 1, characterized in that, In step S4, the outer opening of the pouring nozzle (32) is higher than the upper surface of the cone-shaped filler (5). Lightweight aggregate concrete is pumped in through the pouring nozzle (32) and vibrated.

8. The concrete cone-shaped slope filling construction method according to claim 1, characterized in that, The bottom width of the cone-shaped filler (5) is 1900mm, the height is 2687mm, and the angle between its inclined plane and the horizontal plane is 54.75°±2°.

9. A slope-filling scaffold for implementing the concrete cone-shaped slope-filling construction method according to any one of claims 1-8, characterized in that, include: The first horizontal bar (21) rests on the concrete cone (1); The inner upright (22) and the outer upright (24) are perpendicularly connected to the first crossbar (21); A second crossbar (23) and a third crossbar (25) are arranged parallel to the first crossbar (21); Among them, shear bracing (26) to increase stability is provided between the inner uprights (22), and diagonal bracing (27) is provided between the outer upright (24) and the third crossbar (25).

10. A slope filling formwork system for implementing the concrete cone slope filling construction method according to any one of claims 1-8, characterized in that, include: A template (31) is set along the slope of the cone-shaped filler (5). The template (31) is crisscrossed with pads (33) and steel pipes (34). The pads (33) are located between the template (31) and the steel pipes (34). The upper end of the template (31) is provided with a pouring port (32). The pouring port (32) is provided with a concrete guiding structure higher than the pouring surface. Tie rods (35) penetrate the steel pipes (34) and the template (31). One end of the tie rods (35) is fixedly connected to the connecting steel bars (4), and the other end is locked to the steel pipes (34) by fasteners. Thus, the filler template system (3) forms a rigid and stable whole.

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