Composite inclined arc roof base layer

Abstract

The scheme discloses a composite inclined arc roof base layer, which comprises a bottom die and a concrete interception structure; the concrete interception structure comprises an interception net and an interception net limiting assembly, the interception net is arranged on the bottom die of the base layer through the interception net limiting assembly, and a plurality of groups of the concrete interception structure are arranged along the height direction of the roof; the scheme can optimize the disadvantages of the current inclined arc roof structure construction, improve the construction efficiency under the premise of ensuring the construction quality.

Description

Technical Field

[0001] This utility model relates to the field of sloping arch roof construction, specifically to a composite sloping arch roof foundation layer. Background Technology

[0002] Traditional construction methods for sloping arched roof structures typically employ two approaches:

[0003] 1) Double-layer formwork is difficult to erect, requires high positioning accuracy, significantly increases material and labor costs, involves complex overlapping processes, takes a long time to construct, and restricts concrete flow and vibration, which may result in insufficient compaction and water seepage in the roof structure.

[0004] 2) Single-layer formwork: During the concrete pouring process, the horizontal force generated by its own weight increases. If the slump is not properly controlled, especially if the slump is too large, the concrete will flow down the slope, resulting in insufficient thickness of the upper concrete and local accumulation at the bottom. The surface flatness deviation is as high as 10mm~20mm. The subsequent leveling and post-pouring processes seriously affect the construction progress.

[0005] Therefore, to solve the above problems, a composite sloping roof foundation layer is needed, which can optimize the shortcomings of the current sloping roof structure construction and improve construction efficiency while ensuring construction quality. Utility Model Content

[0006] In view of this, the purpose of this utility model is to overcome the defects in the prior art and provide a composite sloping arch roof foundation layer, which can optimize the drawbacks of the current sloping arch roof structure construction and improve construction efficiency while ensuring construction quality.

[0007] The composite sloping arc roof foundation layer of this utility model includes a bottom formwork and a concrete interception structure; the concrete interception structure includes an interception net and an interception net limiting component, the interception net is set on the bottom formwork of the foundation layer through the interception net limiting component, and multiple sets of the concrete interception structure are arranged along the height direction of the roof.

[0008] Furthermore, the base layer is pre-embedded with a top steel mesh corresponding to the top of the interception net and a bottom steel mesh corresponding to the bottom of the interception net; the interception net is also connected to the top steel mesh and the bottom steel mesh through an interception net limiting component.

[0009] Furthermore, the interception net is inclined from top to bottom toward the lower part of the roof, or the interception net is set parallel to the vertical direction.

[0010] Furthermore, each of the aforementioned interception nets is set on the bottom mold by a plurality of interception net limiting components arranged along the width direction of the roof.

[0011] Furthermore, the interception net limiting component includes a fixing plate set on the bottom formwork, and a limiting steel bar set on the fixing plate that is driven to swing toward the roof or the bottom of the roof. The swing axis of the limiting steel bar and the fixing plate is parallel to the width direction of the roof.

[0012] The intercepting net is set on the limiting steel bar, and the limiting steel bar also limits the top and bottom steel bar mesh.

[0013] Furthermore, the cross-section of the interception net, the top steel mesh, and the bottom steel mesh after being connected is approximately "I" shaped.

[0014] Furthermore, the intercepting net is connected to the side of the limiting steel bar near the high point of the roof.

[0015] Furthermore, the limiting reinforcing bars are in the shape of a hoop, the top reinforcing mesh has corresponding top longitudinal reinforcing bars that are limited by the limiting reinforcing bars, and the bottom reinforcing mesh has corresponding bottom longitudinal reinforcing bars that are limited by the limiting reinforcing bars.

[0016] Furthermore, the top reinforcing mesh also includes a top transverse reinforcing bar that is perpendicularly connected to the top longitudinal reinforcing bar corresponding to the position of the limiting reinforcing bar, and the top transverse reinforcing bar is located on the side of the limiting reinforcing bar near the height of the roof; the bottom reinforcing mesh also includes a bottom transverse reinforcing bar that is perpendicularly connected to the bottom longitudinal reinforcing bar corresponding to the position of the limiting reinforcing bar, and the bottom transverse reinforcing bar is located on the side of the limiting reinforcing bar near the height of the roof.

[0017] Furthermore, the interception net is inclined from top to bottom toward the lower part of the roof, and the angle between the interception net and the vertical direction does not exceed 10°.

[0018] This solution also discloses a construction method based on the aforementioned composite sloping roof foundation layer, including the following steps:

[0019] S1. Laying the bottom formwork of the base layer;

[0020] S2. Concrete interception structure is set on the bottom formwork of the foundation layer;

[0021] S3. Pour the foundation concrete segments between adjacent concrete interception structures from bottom to top to complete the foundation layer construction.

[0022] The beneficial effects of this utility model are as follows: The composite sloping roof foundation layer disclosed in this utility model, by setting up a concrete interception structure and pouring it in batches from bottom to top, can control the concrete slump of long-length sloping roofs. Furthermore, the concrete interception structure connects the pre-embedded upper and lower reinforcing meshes within the foundation layer, effectively improving the support strength of the entire foundation layer. In particular, the overall structural design constitutes a multi-dimensional integrated construction method, and the synergistic force-bearing system of the overall structure can effectively improve the density of the roof concrete structure. The composite anti-slip layer composed of the interception mesh, top reinforcing mesh, and bottom reinforcing mesh makes it easier to control the flatness of the concrete, resulting in superior construction quality for the sloping roof. Moreover, the single-formwork design reduces erection time, increases formwork turnover rate, and lowers overall construction costs, making it more economical. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This utility model Figure 1 A schematic diagram of the structure at point A;

[0026] Figure 3 This is a schematic diagram of the structure of the interception net limiting component of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the fixing piece of this utility model. Detailed Implementation

[0028] Figures 1-4 The figure shows a schematic diagram of the structure of this utility model. In this embodiment, the composite sloping roof foundation layer includes a bottom formwork 001 and a concrete interception structure. It should be understood that the bottom formwork 001 is to be removed and reused after use.

[0029] In this embodiment, the bottom mold 001 is a wooden template, which is equivalent to the curvature of the sloping roof.

[0030] In this embodiment, the concrete interception structure includes an interception mesh 101 and an interception mesh 101 limiting component. The mesh structure of the interception mesh 101 has a relatively large roughness, which can increase the contact area with the next stage of concrete pouring, increase the connection strength with the next stage of concrete pouring, improve overall consistency, and effectively resist the diagonal thrust along the roof, preventing interlayer separation of adjacent concrete areas. In this solution, the interception mesh 101 is preferably galvanized steel wire mesh, which has a certain strength and toughness and can resist pressure and shear force. It should be understood that the smaller the mesh size of the interception mesh 101, the better the concrete interception effect, and the higher the strength of the interception mesh 101, the stronger its ability to resist concrete.

[0031] In this embodiment, the intercepting net 101 is set on the bottom formwork 001 of the foundation layer by the intercepting net 101 limiting component, and multiple sets of concrete intercepting structures are arranged along the height direction of the roof; so that during pouring, the foundation layer concrete segments between adjacent concrete intercepting structures are poured one by one from bottom to top; specifically, each piece of the intercepting net 101 is set on the bottom formwork 001 by a number of intercepting net 101 limiting components arranged along the width direction of the roof; improving installation reliability, ensuring stress reliability, and preventing the concrete of the steeply sloping curved roof from falling.

[0032] In this embodiment, the intercepting net 101 is inclined from top to bottom towards the lower part of the roof, that is, the intercepting net 101 is in the same direction of inclination as the roof, and the inclination angle does not exceed 10°. This angle is the angle between the intercepting net 101 and the vertical direction, or the intercepting net 101 is set parallel to the vertical direction. The inclination or vertical setting of the intercepting net 101 allows for the formation of a wedge-shaped first-pour section when pouring concrete in stages. When pouring subsequent concrete, it can increase the ability to retain concrete, improve the connection strength with the later-poured concrete, and improve the overall consistency. In this solution, the vertical setting of the intercepting net 101 can eliminate the need for auxiliary tools. It can be directly arranged vertically during construction, reducing construction difficulty and speeding up the construction progress. It should be understood that if the intercepting net 101 cannot be guaranteed to be completely vertical during actual construction, it can be slightly inclined towards the side of the later-poured concrete, which will not be elaborated here.

[0033] In this embodiment, the intercepting net 101 limiting component includes a fixing plate 104 set on the bottom formwork 001, and a limiting steel bar 105 set on the fixing plate 104 that is driven to swing toward the roof or the bottom of the roof. The swing axis of the limiting steel bar 105 and the fixing plate 104 is parallel to the width direction of the roof, and the swing axis is located close to the bottom formwork 001. The intercepting net 101 is set on the limiting steel bar 105, that is, the intercepting net 101 is driven to swing on the bottom formwork 001 through a plurality of intercepting net 101 limiting components. The intercepting net 101 can be driven to swing toward the side of the first-poured concrete or the side of the later-poured concrete, so that resistance to the cast-in-place concrete can be actively applied during construction, further limiting the shape of the cast-in-place concrete after curing, further improving the ability of the cast-in-place concrete to form the above-mentioned wedge-shaped first-poured section, thereby ensuring the integrity and consistency of the sloping roof foundation layer.

[0034] In this embodiment, the fixing piece 104 is integrally injection molded from modified polypropylene. During use, the fixing piece 104 is fixed to the bottom mold 001 using staples, making construction simple and convenient, improving construction quality, and offering relatively low cost and greater economic efficiency. The position of the fixing piece 104 is determined based on existing calculation models, such as commonly used BIM models, improving the installation accuracy of the fixing piece 104 and thus ensuring the installation accuracy of the interception net 101. The top of the fixing piece 104 has a connecting portion with limiting holes for limiting reinforcing bars 105 parallel to the roof width direction. The limiting reinforcing bars 105 are in the shape of a hoop, with their bottoms passing through the limiting holes and being driven to swing on the connecting portion. The top of the limiting reinforcing bars 105 closes to form a long, narrow hoop structure. The interception net 101 is connected to the side of the limiting reinforcing bars 105 near the high point of the roof, further improving the connection reliability between adjacent concrete segments, enhancing the consistency of the sloping roof foundation layer, effectively suppressing the flow of post-poured concrete, and ensuring construction quality.

[0035] In this embodiment, the foundation layer also includes a top reinforcing mesh 102 corresponding to the top of the intercepting mesh 101 and a bottom reinforcing mesh 103 corresponding to the bottom of the intercepting mesh 101. The intercepting mesh 101 is connected to the top reinforcing mesh 102 and the bottom reinforcing mesh 103 through the intercepting mesh 101 limiting component. This allows the double-layer reinforcing mesh, the intercepting mesh 101, and the intercepting mesh 101 limiting component in the foundation layer to form a multi-unit integrated assembly structure, which can effectively improve the density of the concrete structure of the sloping roof. For concrete segments poured section by section, the stress is distributed by the overall structure during each concrete pour, and the anti-slip ability is efficiently improved. This allows for better control of the flatness and density of the concrete in each segment and connected segments. Furthermore, by using the structure and method of this solution, the spacing between adjacent intercepting mesh 101 pieces can be designed to be larger, which is especially suitable for sloping roofs with large slopes, such as R34566, R38779, and R46281, to further improve economic efficiency.

[0036] In this embodiment, the top reinforcing mesh 102 and the bottom reinforcing mesh 103 are limited by the limiting reinforcing bars 105, so that the intercepting mesh 101, the top reinforcing mesh 102 and the bottom reinforcing mesh 103 are connected, and the cross section of the intercepting mesh 101, the top reinforcing mesh 102 and the bottom reinforcing mesh 103 after connection is approximately "I" shaped; the structural stability is better, wherein the bottom reinforcing mesh 103 is located on top of the fixing plate 104, the swing axis of the fixing plate 104 and the limiting reinforcing bars 105 is located between the bottom reinforcing mesh 103 and the bottom mold 001, the reinforcing mesh is set on the limiting reinforcing bars 105 and is located above the bottom reinforcing mesh 103, and the top reinforcing mesh 102 is limited by the limiting reinforcing bars 105 and is located above the connecting mesh. During construction, the fixing plate 104 is first set on the bottom formwork 001, and then the limiting steel bar 105 is set on the fixing plate 104. In this state, the top of the limiting steel bar 105 is open. Then, the bottom steel mesh 103, the intercepting mesh 101 and the top steel mesh 102 are set on the limiting steel bar 105 from bottom to top. Then, the top opening of the limiting steel bar 105 is closed, and the entire load-bearing system is fully connected.

[0037] In this embodiment, the top reinforcing mesh 102 has top longitudinal reinforcing bars corresponding to the limiting reinforcing bars 105, and the bottom reinforcing mesh 103 has bottom longitudinal reinforcing bars corresponding to the limiting reinforcing bars 105; the top reinforcing mesh 102 also includes top transverse reinforcing bars that are perpendicularly connected to the top longitudinal reinforcing bars corresponding to the position of the limiting reinforcing bars 105, and the top transverse reinforcing bars are located on the side of the limiting reinforcing bars 105 near the high point of the roof; the bottom reinforcing mesh 103 also includes bottom transverse reinforcing bars that are perpendicularly connected to the bottom longitudinal reinforcing bars corresponding to the position of the limiting reinforcing bars 105, and the bottom transverse reinforcing bars are located on the side of the limiting reinforcing bars 105 near the high point of the roof. The top reinforcing mesh 102 and the bottom reinforcing mesh 103 have the same mesh shape, both being square reinforcing meshes. During construction, the positioning of the limiting reinforcing bar 105 is not only close to the top reinforcing bar connection nodes of the top longitudinal and top transverse reinforcing bars in the top reinforcing mesh 102, but also close to the bottom reinforcing bar connection nodes of the bottom longitudinal and bottom transverse reinforcing bars in the bottom reinforcing mesh 103. Furthermore, the limiting reinforcing bar 105 faces the bottom edge of the sloping roof, and the top and bottom reinforcing bar connection nodes face the top edge of the sloping roof. This enhances the interception capacity during concrete pouring.

[0038] This embodiment also discloses a construction method based on a composite sloping arched roof foundation layer, including the following steps:

[0039] S1. Laying the bottom formwork 001 of the base layer;

[0040] S2. A concrete interception structure is provided on the bottom formwork 001 of the base layer. The concrete interception structure is used to improve the retention capacity of concrete and control the concrete slump.

[0041] S3. Pour the foundation concrete segments between adjacent concrete interception structures from bottom to top to complete the foundation layer construction; after each foundation concrete segment is poured, vibrate the concrete in the corresponding segment, and then manually smooth and finish the surface of each segment after vibration to ensure that the surface flatness of the segment meets the preset index and optimize the quality of the base layer.

[0042] This solution, by setting up a concrete interception structure and pouring the concrete in batches from bottom to top, can control the slump of the concrete on long, sloping roofs. Furthermore, the concrete interception structure connects the top and bottom reinforcing meshes 102 and 103 pre-embedded in the foundation layer, effectively enhancing the support strength of the entire foundation layer. In particular, the overall structural design constitutes a multi-dimensional integrated construction method, and the synergistic force-bearing system of the overall structure effectively improves the density of the roof concrete structure. The composite anti-slip layer composed of the interception mesh 101, the top reinforcing mesh 102, and the bottom reinforcing mesh 103 makes it easier to control the flatness of the concrete, resulting in superior construction quality for the sloping roof. Moreover, the single-formwork design reduces erection time, increases formwork turnover, and the overall structure is simple, easy to operate, and has lower construction costs, making it more economical.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A composite sloping arch roof foundation layer, characterized in that: It includes a bottom formwork and a concrete interception structure; the concrete interception structure includes an interception net and an interception net limiting component. The interception net is set on the bottom formwork of the foundation layer through the interception net limiting component, and multiple sets of the concrete interception structure are arranged along the height direction of the roof.

2. The composite sloping roof foundation layer according to claim 1, characterized in that: The base layer is pre-embedded with a top steel mesh located at the top of the interception net and a bottom steel mesh located at the bottom of the interception net; the interception net is also connected to the top steel mesh and the bottom steel mesh through an interception net limiting component.

3. The composite sloping arch roof foundation layer according to claim 1, characterized in that: The interception net is inclined from top to bottom toward the lower part of the roof, or the interception net is set parallel to the vertical direction.

4. The composite sloping roof foundation layer according to claim 1, characterized in that: Each of the aforementioned intercepting nets is set on the bottom formwork by a number of intercepting net limiting components arranged along the width direction of the roof.

5. The composite sloping roof foundation layer according to claim 2, characterized in that: The interception net limiting component includes a fixed plate set on the bottom formwork, and a limiting steel bar set on the fixed plate that is driven to swing toward the roof or the bottom of the roof. The swing axis of the limiting steel bar and the fixed plate is parallel to the width direction of the roof. The intercepting net is set on the limiting steel bar, and the limiting steel bar also limits the top and bottom steel bar mesh.

6. The composite sloping arch roof foundation layer according to claim 2, characterized in that: The cross-section of the interception net, the top steel mesh, and the bottom steel mesh after connection is approximately "I" shaped.

7. The composite sloping roof foundation layer according to claim 5, characterized in that: The interception net is connected to the side of the limiting steel bar near the high point of the roof.

8. The composite sloping roof foundation layer according to claim 5, characterized in that: The limiting reinforcing bars are in the shape of a hoop, the top reinforcing mesh has corresponding top longitudinal reinforcing bars that are limited by the limiting reinforcing bars, and the bottom reinforcing mesh has corresponding bottom longitudinal reinforcing bars that are limited by the limiting reinforcing bars.

9. The composite sloping roof foundation layer according to claim 8, characterized in that: The top reinforcing mesh also includes a top transverse reinforcing bar that is perpendicularly connected to the top longitudinal reinforcing bar corresponding to the position of the limiting reinforcing bar, and the top transverse reinforcing bar is located on the side of the limiting reinforcing bar near the height of the roof; the bottom reinforcing mesh also includes a bottom transverse reinforcing bar that is perpendicularly connected to the bottom longitudinal reinforcing bar corresponding to the position of the limiting reinforcing bar, and the bottom transverse reinforcing bar is located on the side of the limiting reinforcing bar near the height of the roof.

10. The composite sloping arch roof foundation layer according to claim 3, characterized in that: The interception net slopes downwards towards the lower part of the roof, and the angle between the interception net and the vertical direction does not exceed 10°.

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