Pouring thickness limiting device for concrete curved roof

Abstract

The utility model discloses a concrete curved surface roof pouring thickness limiting device in the technical field of building construction, a thickness adjusting mechanism and a height limiting net are additionally arranged, the height limiting net can cover the top of concrete, and therefore the thickness of the poured concrete is limited and marked, and the construction efficiency is improved. An anti-cracking layer can be formed on concrete through the height limiting net, the flatness of the top of the poured concrete can be improved, it is ensured that the thickness of the whole cambered surface of the top of the concrete is kept at a fixed value, and especially for a cambered surface roof, the device can keep the concrete thickness of the whole cambered surface consistent without being uneven; the flow stopping net intercepts fine concrete flowing towards the lower position, so that the concrete is limited within a specified range, the concrete is solidified and formed according to the shape of the designed thickness after being poured, the height limiting rod can play a role of a reinforcing rib in the concrete, and the overall structural strength of the concrete is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a device for limiting the pouring thickness of a concrete curved roof. Background Technology

[0002] In some large public buildings, to express the architecture and its inherent meaning, a beautiful shape and a uniquely structured landmark are required. Often, the roof is made curved. Some buildings, for aesthetic purposes, feature hyperboloid roofs. Hyperboloid roofs are typically supported by single-curved steel beams, with corrugated profiled steel sheets laid on top of these single-curved beams. The crests and troughs of the profiled steel sheets adapt to the curved surface of the steel beams. The profiled steel sheets are tilted to support the other side of the curved surface, creating a hyperboloid shape within the space. The profiled steel sheets serve as the base formwork for the upper concrete, and concrete is then laid on top of the profiled steel sheets, forming the hyperboloid shape.

[0003] The load on the corrugated steel sheet is transferred through the following path: both the permanent and dynamic loads of the roof are transferred to the corrugated steel sheet. The corrugated steel sheet then transfers the roof load to the secondary steel beams, which in turn transfer it to the main beams, and finally to the steel columns, thereby achieving the purpose of providing stable support for the building.

[0004] The roof of this sloping building needs to be curved, which can only be achieved by pouring concrete using formwork. The roof top is then shaped manually from the poured concrete into the desired form.

[0005] When pouring this type of concrete, because the roof's base membrane is curved, the concrete will flow downwards due to gravity, especially finer concrete, which has even greater fluidity. After a period of time, the aggregates such as sand and gravel remain relatively still, while the water and fine concrete flow downwards, making it difficult to achieve the intended thickness. This causes the concrete at higher elevations to lose some support, potentially leading to partial or complete collapse and the concrete flowing downwards. Consequently, the poured concrete cannot reach the preset thickness, and at curved surfaces with significant height differences, the concrete may not even be poured and formed properly.

[0006] Based on this, this utility model designs a pouring thickness limiting device for concrete curved roofs to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide a concrete curved roof pouring thickness limiting device. This device adds a thickness adjustment mechanism and a height limiting net, which can cover the top of the concrete with a steel wire height limiting net, thereby limiting and marking the thickness of the poured concrete. It can also form a crack-resistant layer on the concrete through the height limiting net, and improve the flatness of the top of the poured concrete, ensuring that the thickness of the entire top curved surface of the concrete is a fixed value and will not be uneven. In addition, it can intercept the fine concrete flowing downhill through the flow-stopping net, so that the concrete is limited to a specified range, and the concrete solidifies and forms according to the designed thickness after pouring.

[0008] This utility model is implemented as follows: a pouring thickness limiting device for a curved concrete roof, comprising:

[0009] Includes: thickness adjustment mechanism, height limiting mesh, flow-stopping mesh, and profiled steel sheet;

[0010] The profiled steel sheet is a flexible corrugated sheet; multiple thickness adjustment mechanisms are fixed on the profiled steel sheet;

[0011] Both the height-limiting net and the flow-stopping net are flexible, flat mesh panels.

[0012] The height restriction net is detachably locked to the top of the thickness adjustment mechanism, and the height restriction net is laid out directly above the profiled steel sheet without contacting the thickness adjustment mechanism;

[0013] The flow-stopping mesh is vertically locked to the thickness adjustment mechanism by a detachable latch;

[0014] The thickness adjustment mechanism includes a top locking plate, a water-stop clamping ring, a height limiting rod, a water-stop plug, and a fixing plate; both the top locking plate and the fixing plate are flat plates, and the fixing plate is attached and fixed to the profiled steel plate.

[0015] The height limiting rod is a threaded rod, and the height limiting rod is vertically fixed to the top of the fixing plate;

[0016] Both the top locking plate and the water-stop clamp are flat plates, and both the top locking plate and the water-stop clamp are installed on the height limit bar by means of threads that can be raised and lowered.

[0017] The water-stop plug is a rubber plug, and the water-stop plug is installed on the height limit bar by threads;

[0018] The top locking plate, water-stop plug, water-stop clamping ring and fixing plate are arranged on the height limit bar from top to bottom;

[0019] The height-limiting net is sleeved on the height-limiting pole, and the height-limiting net is stably clamped between the water-stop clamp and the top locking plate.

[0020] Furthermore, the top locking plate, the water-stop clamping ring, and the fixing plate are all circular flat plates;

[0021] The axes of the top locking plate, the water-stop clamp, the height limiting rod, and the fixing plate are coincident;

[0022] The fixing plate is locked to the profiled steel plate by rivets.

[0023] Furthermore, the height restriction net is made of steel wire mesh;

[0024] The number of mesh openings in the height restriction net shall not be less than 1000 per square meter;

[0025] The diameter of the water-stop clamp and the top locking plate is larger than the aperture of any mesh of the height-limiting net.

[0026] Furthermore, the flow-stopping mesh is a perforated mesh plate, and the number of mesh holes per square meter is not less than 1200;

[0027] The flow-stopping net is locked to the height-limiting bar by a buckle; a flow-stopping net is vertically installed between any two of the height-limiting bars and can be detached.

[0028] Furthermore, the top of the water-stop plug is closed, and the top of the water-stop plug is also wrapped with a sponge protective pad. The water-stop plug is a frustum-shaped rubber plug that is larger at the top and smaller at the bottom. The lower end of the water-stop plug is a threaded hole, and the top of the water-stop plug is a circular plane with a diameter of not less than 3cm.

[0029] The water-stopping plug is clamped at the bottom of the height restriction net.

[0030] The beneficial effects of this utility model are: 1. This device adds a thickness adjustment mechanism, which can lay and clamp the height limiting net, so that the height limiting net can be laid on the profiled steel plate. The thickness of the concrete pouring can be referenced through the height limiting net, and the top layer of the concrete can be intercepted and restricted, so that the top of the concrete cannot flow to the lower place, avoiding the freshly poured concrete from becoming fluid, and making the concrete form according to the set thickness.

[0031] 2. This device also includes a thickness adjustment mechanism. The height-limiting net is clamped by a water-stop clamp and a top locking plate. The height of the water-stop clamp and the top locking plate can be adjusted on the height-limiting bar, so that this device can easily limit the thickness of concrete and flexibly adjust the pouring thickness of concrete according to the actual construction and design scheme. It is easy to use. Moreover, the height-limiting bar is cast into the concrete as a whole, forming a vertical skeleton, which can also play a role in reinforcing the entire concrete pouring structure.

[0032] 3. This device also includes a flow-stopping net, which can directly intercept and lock the concrete at lower levels, ensuring that the concrete structure does not overflow in large quantities, and allowing the sides of the poured concrete to be fully formed, thereby enabling the concrete structure to solidify according to the set shape. Attached Figure Description

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] Figure 1 This is a schematic diagram of the profiled steel sheet laying structure of the building structure of this utility model;

[0035] Figure 2 This is a schematic diagram of the structure for the spaced laying of the height-limiting mesh and flow-stopping mesh on the top of the profiled steel sheet according to this utility model;

[0036] Figure 3 This is a schematic diagram of the complete laying structure of the height-limiting net and the flow-stopping net of this utility model;

[0037] Figure 4 This is a schematic diagram of the distribution structure of the thickness adjustment mechanism of this utility model on the profiled steel sheet;

[0038] Figure 5 This is a schematic diagram of the thickness adjustment mechanism of this utility model;

[0039] Figure 6 This is a schematic diagram of the structure of the adjacent thickness adjustment mechanism of this utility model in the clamping state with the height limiting net and the flow-stopping net;

[0040] Figure 7 This is a structural diagram of a building roof covered with concrete, according to the present invention.

[0041] The attached diagram lists the components represented by each number as follows:

[0042] 1-Thickness adjustment mechanism, 11-Top locking plate, 12-Water-stop clamping ring, 13-Height limit bar, 14-Water-stop plug, 15-Fixing plate, 2-Height limit net, 21-Flow stop net, 3-Corrugated steel sheet, 31-Curved beam, 32-Column. Detailed Implementation

[0043] Please see Figures 1 to 7 As shown, this utility model provides a pouring thickness limiting device for a curved concrete roof. To better understand the above technical solution, the following will describe the above technical solution in detail with reference to the accompanying drawings and specific embodiments.

[0044] In a specific embodiment of the technical solution of this utility model:

[0045] The building structure includes: profiled steel sheet 3, curved beam 31 and column 32. Column 32 is a pile foundation column, and curved beam 31 is a bent I-beam. Curved beam 31 is fixedly welded to the top of column 32.

[0046] The thickness limiting device includes: a thickness adjustment mechanism 1, a height limiting net 2, and a flow-stopping net 21;

[0047] The profiled steel sheet 3 is a flexible corrugated sheet; the profiled steel sheet 3 is inclined along the groove axis of the corrugation; multiple thickness adjustment mechanisms 1 are fixed on the crest surface of the profiled steel sheet 3; the profiled steel sheet 3 is connected between the thickness limiting device and the building structure, and plays the role of transferring load, transferring the concrete structural load on the top of the profiled steel sheet 3 to the curved beam 31 and the column 32, thereby achieving the load-bearing function;

[0048] Both height restriction netting 2 and flow-stopping netting 21 are flexible, flat mesh panels; height restriction netting 2 is made of steel wire mesh; the number of mesh openings in height restriction netting 2 is no less than 1000 per square meter. Flow-stopping netting 21 is a perforated mesh panel; the number of mesh openings in flow-stopping netting 21 is no less than 1200 per square meter.

[0049] The diameters of the water-stopping clamp 12 and the top locking plate 11 are larger than the aperture of any mesh of the height-limiting net 2;

[0050] The diameter of the height restriction pole 13 is also larger than the aperture of the height restriction net 2. However, in order to install it, the wire mesh needs to be cut or penetrated for installation and insertion. This also allows for a tighter wrapping, and the addition of the water-stop clamp 12 can seal the penetration or cut points to prevent excessive overflow.

[0051] The height restriction net 2 is detachably locked to the top of the thickness adjustment mechanism 1, and the height restriction net 2 is spread directly above the profiled steel sheet 3 without contacting the thickness adjustment mechanism 1;

[0052] The flow-stopping mesh 21 is vertically locked to the thickness adjustment mechanism 1 via a latch that allows for detachment.

[0053] The thickness adjustment mechanism 1 includes a top locking plate 11, a water-stop clamping ring 12, a height limiting rod 13, a water-stop plug 14, and a fixing plate 15; the top locking plate 11 and the fixing plate 15 are both flat plates, and the fixing plate 15 is attached to and fixed on the profiled steel sheet 3, and fixed on the raised corrugated plate of the profiled steel sheet 3; the top locking plate 11, the water-stop clamping ring 12, and the fixing plate 15 are all circular flat plates;

[0054] The top of the water-stop plug 14 is closed, and the top of the water-stop plug 14 is also wrapped with a sponge protective pad. The water-stop plug 14 is a frustum-shaped rubber plug with a larger top and a smaller bottom. The bottom of the water-stop plug 14 is a threaded hole. The top of the water-stop plug 14 is a circular plane, and the diameter of the circular top of the water-stop plug 14 is not less than 3cm.

[0055] The water-stop plug 14 is clamped at the bottom of the height restriction net 2. The lower end of the water-stop plug 14 is attached to the top of the top locking plate 11, which limits the water-stop plug 14. Through the structure of the sponge and the closed structure at the top of the water-stop plug 14, it can not only clamp the height restriction net 2, but also prevent the top of the height restriction bar 13 from protruding outside through the top locking plate 11, thus preventing personnel from accidentally falling and being stabbed during construction. Therefore, the water-stop plug 14 can not only stop water, but also provide protection.

[0056] The axes of the top locking plate 11, the water-stop clamping ring 12, the height limiting rod 13, and the fixing plate 15 are aligned to ensure greater accuracy during overall installation. Positioning is based on the axis of the height limiting rod 13, but deviations are permissible as the device does not require high precision. The locking position of the fixing plate 15 on the profiled steel sheet 3 can be flexibly adjusted according to actual construction needs. During construction, the actual height limit surface requirements should be considered.

[0057] The fixing plate 15 is locked to the profiled steel plate 3 by rivets or by welding. As long as the fixing plate 15 is fixed to the profiled steel plate 3, the fixing plate 15 can be used to position the height limit bar 13. The height limit bar 13 not only plays the role of positioning and adjustment, but also forms a reinforcing bar structure after the concrete is poured and formed, which can act as the internal steel reinforcement of the concrete and increase the overall load-bearing capacity of the concrete.

[0058] The height limit bar 13 is a threaded bar, which is vertically fixed to the top of the fixing plate 15. That is, the fixing plate 15 is set at the lower end of the height limit bar 13, and the height limit bar 13 and the fixing plate 15 are welded to form an integral structure.

[0059] Both the top locking plate 11 and the water-stop clamping ring 12 are flat plates, and both the top locking plate 11 and the water-stop clamping ring 12 are installed on the height limit bar 13 by means of threads that can be raised and lowered.

[0060] The water-stop plug 14 is a rubber plug, and the water-stop plug 14 is installed on the height limit bar 13 by thread;

[0061] The top locking plate 11, the water-stop plug 14, the water-stop clamping ring 12, and the fixing plate 15 are arranged on the height limit bar 13 from top to bottom;

[0062] The height restriction net 2 is installed on the height restriction pole 13, and the height restriction net 2 is stably clamped between the water-stop clamping ring 12 and the top locking plate 11.

[0063] The flow-stopping net 21 is locked to the height-limiting bar 13 by a buckle. A flow-stopping net 21 is vertically installed between any two height-limiting bars 13 and can be detached. The buckle is a ring spring buckle. This structure allows for easy installation and removal of the flow-stopping net 21 from the height-limiting bar 13. Simply place the flow-stopping net 21 vertically and then fasten the mesh of the flow-stopping net 21 to the height-limiting bar 13 at different heights. If a tighter locking relationship is required, the flow-stopping net 21 can be tied to the height-limiting bar 13 with wire, or even welded directly to the height-limiting bar 13, ensuring that the flow-stopping net 21 is set vertically and can effectively stop the flow of concrete.

[0064] It should be noted that:

[0065] 1. The flow of concrete does not start from the bottom, but rather the top layer of concrete flows downwards, exposing the concrete that was previously inside, and then flows downwards again, causing the concrete to form a mudslide-like state that flows continuously from high to low, making it difficult for the concrete to solidify and form according to the set thickness. This device can cover the top plane of the poured concrete with the height restriction net 2, ensuring that the top of the freshly poured concrete is restricted by the height restriction net 2, thereby ensuring that the top of the concrete does not flow downwards, but is restricted and kept in a fixed position to solidify.

[0066] 2. When concrete is poured on a sloping surface, the concrete at the lowest vertical section is prone to leakage and flow, making it impossible to form. Generally, formwork is needed for batch pouring. However, pouring section by section, with wooden formwork around the edges, will create gaps between adjacent sections after solidification. Without formwork, it will not form properly. Batch pouring at intervals, due to the difference in the pouring sequence, can easily lead to unevenness and cold joints. Intermittent pouring is a suitable method... Figure 2 As shown, these are all problems encountered in building construction. This device uses a flow-stopping net 21, which can be bound to the height-limiting bar 13 to restrict its position, allowing all the concrete to be poured completely at the same time. Figure 3 As shown, the concrete can be poured in one go, and can also be divided into sections during the same pour, thereby limiting the flowability of the concrete. The one-time pour allows for smoothing and vibration, ensuring a compact concrete structure. It also avoids unevenness caused by sequential pouring and prevents cold joints. Furthermore, the pouring stop net 21 can be removed and reused when the concrete is almost set, or it can be left in the concrete to form a reinforcing structure, increasing the structural strength of the concrete. It is convenient and flexible to use, and the one-time molding structure has high strength and strong overall integrity.

[0067] In use, this invention involves designing the area where concrete will be poured, then fixing a plate 15, on which a height-limiting rod 13 is welded. The fixing plate 15 is then attached to the profiled steel sheet 3 by riveting or welding. A water-stop clamp 12 is then installed on the height-limiting rod 13. The height of the water-stop clamp 12 on the height-limiting rod 13 is adjusted; this position determines the coverage height of the height-limiting net 3, which ultimately forms the curved shape of the building's roof. Therefore, the height of the water-stop clamp 12 needs to be measured and positioned to ensure it conforms to the designed roof curvature.

[0068] Then, cover the height restriction net 2 on the height restriction bar 13 so that the height restriction bar 13 penetrates the height restriction net 2, and the height restriction net 2 needs to be attached to the top of the already installed and stable water-stop clamp 12.

[0069] Install the water-stop plug 14 and the top locking plate 11. The water-stop plug 14 is installed below the height restriction net. Press the top locking plate 11 knob onto the top of the height restriction net 2, so that the height restriction net 2 is clamped between the top locking plate 11 and the water-stop clamping ring 12. Ensure that the upper end of the water-stop plug 14 is tightly against the top of the top locking plate 11. You can add a rubber gasket or directly cut the height restriction rod 13 to make its length suitable. As long as you ensure that the top of the top locking plate 11 is tightly against the water-stop plug 14, the gap can be sealed.

[0070] Then, a flow-stopping net 21 is vertically stretched between the two lower height-limiting poles 13. The flow-stopping net 21 can be a mesh or steel wire, but it needs to have higher load-bearing strength and be thinner. One side of the flow-stopping net 21 is stretched and tied to the height-limiting pole 13 using buckles or wire. Then, the other side of the flow-stopping net 21 is stretched and tied to the adjacent height-limiting pole 13, ensuring that the flow-stopping net 21 intercepts the concrete in the direction of downward flow, thereby trapping the concrete and allowing it to solidify and form in a fixed position.

[0071] This device achieves the purpose of interception and limitation on the top and bottom surfaces of the concrete. Similarly, if interception is also required on the left and right sides of the concrete block, it is only necessary to install flow-stopping nets 21 on the two height-limiting bars 13 on the left and right sides.

[0072] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A concrete curved roof casting thickness limiting device, characterized by, The utility model relates to a height limiting device for corrugated steel sheet, which comprises a thickness adjusting mechanism (1), a height limiting net (2), a flow stopping net (21) and a corrugated steel sheet (3). The corrugated steel sheet (3) is a flexible wave-shaped plate, and a plurality of thickness adjusting mechanisms (1) are fixed on the corrugated steel sheet (3). The height limiting net (2) and the flow stopping net (21) are both flexible flat net plates. The height limiting net (2) is detachably locked on the top of the thickness adjusting mechanism (1), and the height limiting net (2) is spread on the corrugated steel sheet (3) through the thickness adjusting mechanism (1) without contact. The flow stopping net (21) is detachably vertically locked on the thickness adjusting mechanism (1) through a lock buckle. The thickness adjusting mechanism (1) comprises a top locking plate (11), a water stopping clamp ring (12), a height limiting rod (13), a water stopping plug (14) and a fixed plate (15). The top locking plate (11) and the fixed plate (15) are both flat plates, and the fixed plate (15) is fixed on the corrugated steel sheet (3). The height limiting rod (13) is a threaded rod, and the height limiting rod (13) is vertically fixed on the top of the fixed plate (15). The top locking plate (11) and the water stopping clamp ring (12) are both flat plates, and the top locking plate (11) and the water stopping clamp ring (12) are both installed on the height limiting rod (13) through threads. The water stopping plug (14) is a rubber plug, and the water stopping plug (14) is installed on the height limiting rod (13) through threads. The top locking plate (11), the water stopping plug (14), the water stopping clamp ring (12) and the fixed plate (15) are sequentially arranged on the height limiting rod (13) from top to bottom. The height limiting net (2) is sleeved on the height limiting rod (13), and the height limiting net (2) is stably clamped between the water stopping clamp ring (12) and the top locking plate (11).

2. A concrete curved roof pour thickness limiting device according to claim 1, wherein: The top locking plate (11), the water stopping clamp ring (12) and the fixed plate (15) are all circular flat plates. The axes of the top locking plate (11), the water stopping clamp ring (12), the height limiting rod (13) and the fixed plate (15) coincide. The fixed plate (15) is locked on the corrugated steel sheet (3) through rivets.

3. A pour thickness limiting device for a concrete curved roof as defined in claim 1 wherein: The height limiting net (2) is a steel wire net. The number of mesh holes of the height limiting net (2) is not less than 1000 per square meter. The diameters of the water stopping clamp ring (12) and the top locking plate (11) are greater than the diameters of any mesh holes of the height limiting net (2).

4. A pour thickness limiting device for a concrete curved roof as defined in claim 1 wherein: The flow stopping net (21) is a punched net plate, and the number of mesh holes of the flow stopping net (21) is not less than 1200 per square meter. The flow stopping net (21) is locked on the height limiting rod (13) through a buckle, and one flow stopping net (21) is vertically installed between any two height limiting rods (13).

5. A pour thickness limiting device for a concrete curved roof as defined in claim 1 wherein: The top of the water stopping plug (14) is closed, and a sponge protective pad is wrapped on the top of the water stopping plug (14). The water stopping plug (14) is an upper-large-and-lower-small circular truncated cone-shaped rubber plug, the lower end of the water stopping plug (14) is a threaded hole, the top of the water stopping plug (14) is a flat surface, and the diameter of the circular flat surface of the top of the water stopping plug (14) is not less than 3 cm. The water stopping plug (14) is clamped on the bottom of the height limiting net (2).

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