Split type steel formwork for inverted cone-shaped terrace pile cap

Abstract

The utility model discloses an inverted conical terrace pile cap split type steel form, including a plurality of side plates and two bottom plates, two bottom plates all are equipped with the opening of the pile top end after closing and clamping, a plurality of bolts detachable fixed are used between a plurality of side plates, a plurality of bolts detachable fixed are used between a plurality of side plates and two bottom plates, the sealing ring is equipped between bottom plate and the pile top end, the sealing strip is equipped between two bottom plates, the sealing strip is equipped between bottom plate and side plate, and the sealing strip is equipped between two adjacent side plates, side plate is four, and each side plate outside is high, and inside is low, and each side plate has a first vertical flanging down, and each bottom plate has three second vertical flanging down, and there are a plurality of first bolt through -holes on the first vertical flanging, and there are a plurality of second bolt through -holes on the second vertical flanging. The steel form can save pouring cushion, and is convenient, fast and laborsaving to disassemble, need not to give out large space, and the earthwork excavation operation is small when disassembling.

Description

Technical Field

[0001] This utility model relates to the field of factory foundation construction technology, specifically a split steel formwork for an inverted cone-shaped floor slab. Background Technology

[0002] In industrial buildings such as factory workshops and machinery plants, the floor or ground level needs to support a large amount of goods or house heavy machinery, thus requiring high load-bearing capacity and necessitating floor reinforcement. This is often achieved through pile reinforcement, with an inverted conical pile cap serving as the force-transfer connection between the piles and the floor. This inverted conical pile cap is known as a floor pile cap.

[0003] The conventional construction method for inverted conical foundation slabs involves first excavating an inverted conical basin-shaped pit, then pouring a 10-15 cm thick concrete pad layer on the sides and bottom of the basin-shaped pit, or building a brick formwork around the sides, then tying the reinforcement cage for the foundation slab, and finally pouring the foundation concrete. This conventional process, particularly the concrete pad layer, is costly in both materials and labor. For example, for a 1.2m x 1.2m foundation slab, the concrete pad layer alone costs approximately 150 yuan. Furthermore, the subsequent reinforcement cage tying and pouring work can only proceed after the concrete pad layer has reached the required dry hardness and strength, typically requiring 7-10 days, which extends the construction period. Similarly, the labor cost of using a brick formwork is even higher, and it also delays the construction period by 7-10 days.

[0004] In existing technologies, some technicians have proposed a technical solution using two interlocking, bolted formwork panels for support. However, this solution is not ideal for the construction of inverted cone-shaped foundation slabs. After the foundation concrete is poured, disassembly is extremely difficult. The two integral formwork panels require significant space on both sides to remove, necessitating large excavations on both sides. This results in high earthwork volume, high labor intensity, high labor costs, and extended construction time. Furthermore, even with substantial excavation on both sides, the integral formwork offers significant resistance, making removal from the sides difficult and labor-intensive. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a split steel formwork for an inverted cone-shaped slab foundation that can save on the pouring of the foundation layer, is easy and quick to disassemble, requires no large space, and requires little earthwork excavation during disassembly.

[0006] The technical solution of this utility model is to provide a split steel formwork for an inverted cone-shaped slab foundation, including multiple side plates and two bottom plates. Both bottom plates are provided with openings that can be closed together to engage the top of the pile. The multiple side plates are detachably fixed to each other with multiple bolts, and the multiple side plates are detachably fixed to the two bottom plates with multiple bolts. A sealing ring is provided between the bottom plate and the top of the pile, a sealing strip is provided between the two bottom plates, a sealing strip is provided between the bottom plate and the side plates, and a sealing strip is provided between adjacent side plates.

[0007] With the above structure, the inverted conical concrete foundation split steel formwork of this utility model has the following advantages:

[0008] Because steel formwork can be reused, it saves on the material cost of pouring the foundation layer.

[0009] Furthermore, since the multiple side panels are connected to each other and to the two base plates with detachable bolts and nuts, after the foundation concrete is poured and dried, workers only need to dig a small space outside the steel formwork to reach out and remove the nuts, and to pull the side panels and the base plates to the sides and upwards. Therefore, the amount of earthwork excavation is relatively small, the labor intensity is relatively low, the labor cost is relatively low, and the construction period is relatively short.

[0010] Since they are all separate parts secured with bolts and nuts, they are easy to assemble and disassemble, and the sealing rings and sealing strips can effectively ensure that there is no leakage of grout during the concrete pouring process.

[0011] Furthermore, the side panels consist of four pieces, each with a higher outer side and a lower inner side. Each side panel has a downward-facing first vertical rolled edge, and each bottom plate has three downward-facing second vertical rolled edges. The first vertical rolled edges have multiple first bolt through holes, and the second vertical rolled edges have multiple second bolt through holes. Multiple first bolts pass through corresponding first and second bolt through holes and are secured by multiple corresponding first nuts. This structure makes installation and disassembly more convenient and faster, and facilitates the installation and tightening of the sealing strip, further ensuring a leak-proof finish.

[0012] Furthermore, each side panel has two outward-facing inclined rolled edges, each with multiple third bolt holes. Multiple second bolts pass through multiple pairs of third bolt holes on adjacent inclined rolled edges and are secured by multiple corresponding second nuts. This structure makes installation and disassembly more convenient and faster, and also facilitates the installation and tightening of the sealing strip, further ensuring a leak-proof finish.

[0013] Furthermore, the first sealing strip between adjacent side plates has a Y-shaped cross-section. The vertical plate of the Y-shape of the first sealing strip has multiple through holes for the fourth bolt, used for passing the second bolt. The two inclined plates of the first sealing strip are tightly fitted at the connection point of the adjacent side plates. With this structure, the first sealing strip between adjacent side plates is cleverly designed, facilitating installation while maintaining good sealing performance and preventing grout leakage after bolting.

[0014] Furthermore, the cross-section of the second sealing strip between the two base plates is T-shaped, and the sealing ring and the second sealing strip are an integral structure. With the above structure, the sealing ring between the two base plates and the pile and the second sealing strip between the two base plates are cleverly designed. The sealing ring only needs to be fitted, and the second sealing strip only needs to be pressed by the two base plates while the side plates are fixed to the base plates. This is convenient for installation and maintains good sealing performance without leakage after fixing.

[0015] Furthermore, the third sealing strip between the first and second vertical rolled edges is a straight-plate sealing strip with multiple fifth bolt through holes for the first bolt to pass through. With this structure, the third sealing strip only needs to be a straight-plate sealing strip with multiple fifth bolt through holes, which facilitates installation and maintains good sealing performance without leakage after fixing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the preferred embodiment of the split steel formwork for the inverted cone-shaped concrete foundation of this utility model. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the preferred embodiment of the split steel formwork for the inverted cone-shaped concrete foundation. Figure 2 .

[0018] Figure 3 yes Figure 2 Enlarged structural diagram of one side panel.

[0019] Figure 4 yes Figure 2 Enlarged structural diagram of the base plate of the middle section.

[0020] Figure 5 yes Figure 1 A schematic diagram of the exploded structure showing two side plates, a first sealing strip, multiple first bolts, and multiple first nuts. Figure 5 and Figure 7 (Reinforcing steel omitted).

[0021] Figure 6 yes Figure 5 A magnified structural diagram of A in the diagram.

[0022] Figure 7 yes Figure 1A schematic diagram of the exploded structure, omitting one side plate and exploding to reveal another side plate and a third sealing strip.

[0023] Figure 8 yes Figure 7 The diagram shows the exploded structure of the two base plates, omitting the side plates and bolts / nuts, and exploding from a different angle.

[0024] As shown in the figure:

[0025] 1. Side plate; 11. First vertical rolled edge; 111. First bolt through hole; 12. Inclined rolled edge; 121. Third bolt through hole;

[0026] 2. Base plate, 21. Second vertical rolled edge, 211. Second bolt through hole;

[0027] 3. Piles;

[0028] 41. First bolt; 42. First nut; 43. Second bolt; 44. Second nut;

[0029] 51. First sealing strip; 511. First vertical plate; 5111. Fourth bolt through hole; 512. Inclined plate; 52. Sealing ring; 53. Second sealing strip; 531. Second vertical plate; 54. Third sealing strip; 541. Fifth bolt through hole.

[0030] 6. Steel reinforcement. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions of specific embodiments are intended to aid in understanding this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various specific embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown.

[0033] A preferred embodiment of the inverted conical slab foundation split steel formwork of this utility model includes multiple side plates 1 and two base plates 2. Both base plates 2 are provided with openings 22 that, when brought together, engage the top of piles 3. The multiple side plates 1 are detachably fixed to each other using multiple bolts, and the multiple side plates 1 are also detachably fixed to the two base plates 2 using multiple bolts. A sealing ring 52 is provided between the base plate 2 and the top of the piles 3, a sealing strip is provided between the two base plates 2, a sealing strip is provided between the base plate 2 and the side plates 1, and a sealing strip is provided between adjacent side plates 1.

[0034] The opening 22 is also called a notch or a locking opening. If the pile 3 or pile body is circular, a semi-circular opening 22 is provided in the middle of each of the two base plates 2, and the two semi-circular openings 22 form a circular hole that completely locks the top of the circular pile 3.

[0035] The side plate 1 is preferably four pieces, with the outer side of each side plate 1 being higher and the inner side being lower. Each side plate 1 has a downward first vertical roll 11, and each bottom plate 2 has three downward second vertical roll edges 21. The first vertical roll edge 11 has multiple first bolt through holes 111, and the second vertical roll edge 21 has multiple second bolt through holes 211. Multiple first bolts 41 pass through the corresponding first bolt through holes 111 and second bolt through holes 211 and are fastened by multiple corresponding first nuts 42.

[0036] Each side plate 1 has two outwardly inclined rolled edges 12, and each inclined rolled edge 12 has multiple third bolt through holes 121. Multiple second bolts 43 pass through multiple pairs of third bolt through holes 121 on adjacent two inclined rolled edges 12 and are fastened by multiple corresponding second nuts 44.

[0037] The cross-sectional shape of the first sealing strip 51 between adjacent side plates 1 is preferably Y-shaped. The vertical plate of the Y-shaped first sealing strip 51, such as the first vertical plate 511, has multiple fourth bolt through holes 5111 for passing through the second bolt 43. The two inclined plates 512 of the first sealing strip 51 are tightly attached to the connection of the adjacent side plates 1.

[0038] The cross-section of the second sealing strip 53 between the two base plates 2 is preferably T-shaped, and the sealing ring 52 and the second sealing strip 53 are an integral structure. The length or height of the T-shaped vertical plate, such as the second vertical plate 531, can be shorter than the thickness of the base plate 2, that is, the T-shaped second vertical plate 531 does not need to penetrate the thickness of the base plate 2.

[0039] The third sealing strip 54 between the first vertical rolled edge 11 and the second vertical rolled edge 21 can be a straight sealing strip with multiple fifth bolt through holes 541 for the first bolt 41 to pass through.

[0040] It's easy to understand that the pile cap is also called a pile foundation. Reinforcing bars 6 can be installed inside the pile cap. These can be multiple reinforcing bars 6 pre-reserved at the top of the pile 3, bent into shape, or a reinforcing mesh can be fixed to these pre-reserved and bent reinforcing bars 6. Sealing rings 52 and sealing strips, such as the first sealing strip 51, the second sealing strip 53, and the third sealing strip 54, are generally made of flexible materials, such as rubber sealing rings and rubber sealing strips. Two of the three second vertical rolled edges 21 on each of the two base plates 2 are only half their length. That is, the first vertical rolled edges 11 of two of the four side plates 1 are actually detachably fixed to two half-length second vertical rolled edges 21 on one side of the two base plates 2. The terms "first," "second," etc., are used for ease of description and do not indicate which is more important or less important.

[0041] Components, structures, or quantities not marked above are not shown in the drawings, and some components are not marked in the drawings. The drawings are for illustrative purposes only. In case of any inconsistency between the drawings and the text description, or between the drawings themselves, the text description shall prevail.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 split-type steel formwork for an inverted cone-shaped slab foundation, comprising multiple side plates and two bottom plates, characterized in that: Both base plates have openings that allow them to snap together at the top of the pile when brought together; multiple side plates are detachably fixed to each other with multiple bolts, and multiple side plates are detachably fixed to the two base plates with multiple bolts; a sealing ring is provided between the base plate and the top of the pile, a sealing strip is provided between the two base plates, a sealing strip is provided between the base plate and the side plates, and a sealing strip is provided between adjacent side plates.

2. The split steel formwork for the inverted conical slab foundation according to claim 1, characterized in that: There are four side plates, each with a higher outer side and a lower inner side. Each side plate has a downward first vertical rolled edge, and each bottom plate has three downward second vertical rolled edges. There are multiple first bolt through holes on the first vertical rolled edge and multiple second bolt through holes on the second vertical rolled edge. Multiple first bolts pass through the corresponding first bolt through holes and second bolt through holes and are fastened by multiple corresponding first nuts.

3. The split steel formwork for the inverted conical slab foundation according to claim 2, characterized in that: Each side panel has two outward-sloping rolled edges, and each rolled edge has multiple third bolt holes. Multiple second bolts pass through multiple pairs of third bolt holes on the two adjacent rolled edges and are secured by multiple corresponding second nuts.

4. The split steel formwork for the inverted conical slab foundation according to claim 3, characterized in that: The cross-sectional shape of the first sealing strip between the adjacent two side plates is Y-shaped. The vertical plate of the Y-shaped first sealing strip has multiple fourth bolt through holes for the second bolt. The two inclined plates of the first sealing strip are tightly attached to the connection of the adjacent two side plates.

5. The split steel formwork for the inverted conical slab foundation according to claim 2, characterized in that: The cross-section of the second sealing strip between the two base plates is T-shaped, and the sealing ring and the second sealing strip are an integral structure.

6. The split steel formwork for the inverted conical slab foundation according to claim 2, characterized in that: The third sealing strip between the first vertical rolled edge and the second vertical rolled edge is a straight plate sealing strip, which has multiple fifth bolt through holes for the first bolt to pass through.

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