Assembly type dense rib bottom plate and connecting joint structure thereof

Abstract

An assembly type dense rib bottom plate comprises a plate body, a plurality of rib beams are longitudinally arranged on the plate body, and metal corrugated pipes are arranged in the rib beams in the length direction of the rib beams. The end faces of the ribbed beams are flush with the edge of the plate body, assembling grooves are formed in the two ends of each ribbed beam, the tops and the outer ends of the assembling grooves are open, and the metal corrugated pipes stretch out of the inner walls of the inner ends of the assembling grooves and stretch into the assembling grooves. According to the embodiment of the utility model, the assembling grooves are formed in the end parts of the ribbed beams, and when the two prefabricated bottom plates are combined, the two opposite assembling grooves at the edges are combined into the grouting connecting groove, so that the connection of the two prefabricated bottom plates can be realized by filling cement into the grouting connecting groove, and the gap between the edges of the two prefabricated bottom plates is small and is directly plastered and filled; in the construction process, wood formworks do not need to be installed, a scaffold does not need to be erected, the construction process is simplified, the construction efficiency is improved, tools and materials needed by construction are reduced, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated buildings, and in particular relates to an assembled multi-ribbed bottom plate and a connection node structure thereof. Background Art

[0002] In modern building construction, the use of prefabricated floor slabs for construction has become quite common. The application of prefabricated floor slabs not only improves construction efficiency, but also ensures the quality of construction to a certain extent. However, during the construction process, the assembly of prefabricated floor slabs still faces some challenges. Specifically, a gap needs to be reserved between two prefabricated floor slabs, and a formwork needs to be installed in the gap so that concrete can be poured into the gap, thereby connecting the two prefabricated floor slabs through the poured concrete.

[0003] At present, a large number of formworks are still needed in construction. These formworks need to be supported by scaffolding, and the workload of setting up scaffolding is very large, which not only increases the construction cost and time, but also puts higher requirements on the management of the construction site. In addition, the traditional formwork installation and removal process is cumbersome, which may affect the construction progress and increase the safety risk of construction. Utility Model Content

[0004] In view of the deficiencies existing in the related art, the utility model provides an assembled multi-ribbed base plate and a connection node structure thereof to solve the problem that the connection between current prefabricated floor slabs requires the installation of formwork in the gaps and the erection of scaffolding, resulting in cumbersome construction and high costs.

[0005] The utility model provides an assembled multi-ribbed bottom plate, comprising a plate body, a plurality of longitudinally arranged rib beams are arranged on the plate body, and a metal corrugated pipe is arranged in the rib beam along the length direction thereof;

[0006] The end surface of the rib beam is flush with the edge of the plate body, and both ends of the rib beam are provided with assembly grooves, the top and outer ends of the assembly grooves are open, and the metal bellows extends through the inner wall of the inner end of the assembly groove and extends into the assembly groove.

[0007] In some of the embodiments, the rib beam protrudes downward relative to the bottom surface of the plate body, and the top surface of the assembly groove is flush with the top surface of the plate body.

[0008] In some of the embodiments, the metal bellows is located at the bottom of the rib beam, and the protruding metal bellows falls on the bottom plate of the assembly groove.

[0009] In some embodiments, the assembly groove is an inverted trapezoidal groove.

[0010] In some embodiments, a key groove is provided on the inner wall of the inner end of the assembly groove.

[0011] In some of the embodiments, both the transverse cross-section and the vertical cross-section of the keyway are trapezoidal, so that the keyway gradually expands from the inside to the outside.

[0012] In some of the embodiments, a fixing rib is installed in the assembly groove, the fixing rib is U-shaped or V-shaped, and both ends of the fixing rib are fixed in the inner wall of the assembly groove so that the fixing rib can be sleeved with the metal bellows.

[0013] In some of the embodiments, the rib beam has two metal bellows, the outer ends of the two metal bellows are respectively located on the left and right sides of the corresponding assembly groove, one end of the fixing rib is horizontally fixed in the side wall of the assembly groove, and the other end is vertically fixed in the bottom plate of the assembly groove.

[0014] The utility model also provides a connection node structure of an assembled multi-ribbed bottom plate, comprising two assembled multi-ribbed bottom plates, namely a first prefabricated plate and a second prefabricated plate;

[0015] One side edge of the first prefabricated plate is in contact with the opposite side edge of the second prefabricated plate, and the rib beams of the first prefabricated plate are aligned with the corresponding rib beams on the second prefabricated plate in the longitudinal direction, and the end faces are in contact with each other, so that the two opposite assembly grooves are combined into a grouting connection groove, and the grouting connection groove is filled with concrete;

[0016] The connecting steel bars passed through the metal corrugated pipe of the first prefabricated plate are longitudinally passed through the metal corrugated pipe corresponding to the second prefabricated plate. The grouting connection groove is provided with a wire mesh sleeve, and the two ends of the wire mesh sleeve are respectively sleeved with two opposite metal corrugated pipes in the grouting connection groove.

[0017] In some of the embodiments, the outer end of the metal bellows and the end surface of the corresponding rib beam are recessed inwards.

[0018] Based on the above technical scheme, in the embodiment of the utility model, an assembly groove is opened at the end of the rib beam. When the two prefabricated bottom plates are combined, the two assembly grooves opposite to each other at the edges are combined into a grouting connection groove, and the connecting steel bars of the two prefabricated bottom plates are passed through the metal corrugated pipe and also pass through the grouting connection groove, so that the two prefabricated bottom plates can be connected by filling cement into the grouting connection groove. The gap between the edges of the two prefabricated bottom plates is small and can be directly filled with plaster. During the construction process, there is no need to install wooden formwork and set up scaffolding, which simplifies the construction process, improves construction efficiency, reduces the tools and materials required for construction, reduces construction costs, and solves the problem that the current connection between prefabricated floor slabs requires installing formwork and setting up scaffolding in the gap, resulting in cumbersome construction and high costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 The structure diagram of the assembled multi-ribbed bottom plate of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The structure diagram of the assembled multi-ribbed bottom plate of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 This is a partial enlargement of the assembled multi-ribbed bottom plate of the utility model. Figure 1 ;

[0023] Figure 4 This is a partial enlargement of the assembled multi-ribbed bottom plate of the utility model. Figure 2 ;

[0024] Figure 5 It is a partial enlarged view of the connection node structure of the assembled multi-ribbed bottom plate of the utility model when it is not filled with concrete;

[0025] Figure 6 It is a partial cross-sectional view of the connection node structure of the assembled multi-ribbed bottom plate of the utility model when it is not filled with concrete;

[0026] In the figure:

[0027] 1. Plate; 2. Rib beam; 3. Metal bellows; 4. Assembly groove; 5. Connecting steel bar; 6. Grouting connection groove; 7. Keyway; 8. Fixing bar; 9. Wire mesh sleeve;

[0028] 11. The first precast panel; 12. The second precast panel. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figures 1 to 4 As shown, in an illustrative embodiment of the assembled multi-ribbed base plate of the utility model, the assembled multi-ribbed base plate includes a plate body 1, the plate body 1 has a plurality of longitudinally arranged rib beams 2, and the rib beams 2 have metal bellows 3 arranged along the length direction thereof.

[0034] The end surface of the rib beam 2 is flush with the edge of the plate body 1. Both ends of the rib beam 2 are provided with assembly grooves 4. The top and outer ends of the assembly grooves 4 are open. The metal bellows 3 extends through the inner wall of the inner end of the assembly groove 4 and extends into the assembly groove 4.

[0035] During the construction of the dense-ribbed floor, a plurality of assembled dense-ribbed bottom plates are arranged longitudinally, and a plurality of connecting steel bars 5 respectively pass through each assembled dense-ribbed bottom plate in sequence longitudinally through the corresponding metal corrugated pipes 3. A grouting hole connected to the metal corrugated pipe 3 is provided on the top surface of the plate body 1. High-strength grouting material is poured into the metal corrugated pipe 3 through the grouting hole, and each part of the connecting steel bar 5 is fixed in the corresponding metal corrugated pipe 3, so that a plurality of assembled dense-ribbed bottom plates are connected by the same connecting steel bar 5.

[0036] In order to ensure that the high-strength grouting material in the metal bellows 3 is filled, the high-strength grouting material needs to overflow from the port of the metal bellows 3. In order to ensure the overflow of the high-strength grouting material, the ends of the two metal bellows 3 located in the same longitudinal straight line adjacent to the assembled multi-ribbed bottom plate cannot be butted against each other. If the metal bellows 3 is completely embedded in the rib beam 2, and the end face of the rib beam 2 is flush with the edge of the assembled multi-ribbed bottom plate, in order to ensure that the high-strength grouting material can overflow from the port of the metal bellows 3, a gap needs to be left between adjacent assembled multi-ribbed bottom plates.

[0037] The end of the rib beam 2 is provided with an assembly groove 4, and the metal bellows 3 extends out of the rib beam 2 into the assembly groove 4. The end of the metal bellows 3 is hidden in the assembly groove 4 and will not be constrained by the rib beam 2. When the edges of adjacent assembled dense-ribbed bottom plates are pressed against each other, a gap can be generated between the ports of the two longitudinally opposite metal bellows 3, so that the high-strength grouting material can overflow, ensuring that the metal bellows 3 is grouted densely. In addition, since the edges of adjacent assembled dense-ribbed bottom plates can be pressed against each other, the gap between the two is small, and the gap can be filled and applied with concrete directly into the gap, and the amount of concrete filled is small, and there is no need to set up wooden formwork to support the concrete between adjacent assembled dense-ribbed bottom plates, thereby eliminating the need to build a scaffolding to support the wooden formwork, saving the cost and time of purchasing wooden formwork and setting up scaffolding.

[0038] Since the protruding end of the metal bellows 3 is located in the assembly groove 4, that is, in the grouting connection groove 6 composed of the two opposite assembly grooves 4, the high-strength grouting material poured into the metal bellows 3 overflows from the end of the metal bellows 3 into the grouting connection groove 6, thereby ensuring that the metal bellows 3 is completely filled, and the excess high-strength grouting material overflows from the metal bellows 3 and flows into and fills the grouting connection groove 6. While ensuring the grouting quality of the metal bellows 3, the high-strength grouting material is used more efficiently to avoid its waste.

[0039] Concrete is filled into the grouting connection groove 6 formed by the two assembly grooves 4, and the protruding end of the metal corrugated pipe 3 is buried in the floor structure to avoid exposure of the metal corrugated pipe 3 and the connecting steel bars 5. The filled concrete can form a key structure to limit the connection between the two assembled multi-ribbed base plates in a horizontal direction perpendicular to the connecting steel bars 5, thereby improving the stability of the connection between the assembled multi-ribbed base plates.

[0040] In the above-mentioned schematic embodiment, the assembled multi-ribbed base plate is provided with an assembly groove 4 at the end of the rib beam 2, so that the end of the metal bellows 3 is extended out, eliminating the constraint of the rib beam 2 on it, so that when the edges of the assembled multi-ribbed base plates are close to each other, a gap can be formed between the two opposite ends of the metal bellows 3, so that the grouting slurry in the metal bellows 3 can overflow, thereby ensuring the grouting construction quality in the metal bellows 3. At the same time, the gap between the assembled multi-ribbed base plates close to each other is small, and only a small amount of concrete is needed to fill it up. There is no need to set up wooden formwork for support, and there is no need to build scaffolding to support the wooden formwork. The construction process is simplified, the construction efficiency is improved, the tools and materials required for construction are reduced, the construction cost is reduced, and the problem that the current connection between prefabricated floor slabs requires the installation of formwork and the erection of scaffolding at the gap, resulting in cumbersome construction and high cost.

[0041] In some embodiments, the rib beam 2 protrudes downward relative to the bottom surface of the plate body 1, so that the top surface of the plate body 1 is relatively flat, and the top surface of the assembly groove 4 is flush with the top surface of the plate body 1, that is, the open top opening of the assembly groove 4 is flush with the top surface of the plate body 1. After the concrete is filled into the assembly groove 4, there is no structure protruding upward on both sides of the assembly groove 4. The assembly groove 4 can be filled with concrete by moving the tool along the surface of the top surface of the plate body 1. The construction operation is easy, and the upward protrusion of the rib beam 2 does not affect the fluidity of further pouring concrete on the plate body 1, thereby avoiding construction difficulties caused by uneven surface and improving construction quality.

[0042] In some embodiments, the metal bellows 3 is located at the bottom of the rib beam 2, so that the extended metal bellows 3 falls on the bottom plate of the assembly groove 4, and the bottom surface of the assembly groove 4 supports the metal bellows 3 upward, which can effectively improve the stability of the bellows and keep it straight, facilitating the threading of the connecting steel bars 5.

[0043] In some embodiments, the assembly groove 4 is an inverted trapezoidal groove, so that its width gradually increases from bottom to top, and the inner walls on the left and right sides are sloped. When filling concrete, the concrete is more likely to flow downward and concentrate, avoiding bubbles in the concrete at the bottom of the assembly groove 4, ensuring that the concrete fills the assembly groove 4, and improving the quality of concrete pouring. The inverted trapezoidal assembly groove 4 is also convenient for demoulding when the assembled multi-ribbed bottom plate is prefabricated using a mold.

[0044] In some embodiments, a key slot 7 is provided on the inner wall of the inner end of the assembly slot 4, and the poured concrete can enter the key slot 7. The provision of the key slot 7 increases the surface area of ​​the inner wall of the inner end of the assembly slot 4, thereby increasing the contact area with the concrete, improving the precast concrete bonding strength, and improving the stability of the poured concrete in the assembly slot 4. In addition, after the concrete solidifies, the key slot 7 forms an assembly key, which is inserted and fixed in the key slot 7. The two cooperate to form a vertical limit, thereby improving the vertical stability of the poured concrete in the assembly slot 4.

[0045] In some embodiments, the transverse and vertical cross-sections of the keyway 7 are both trapezoidal, so that the keyway 7 gradually expands from the inside to the outside, and the poured concrete can easily enter and fill it, ensuring the pouring quality. It is also convenient for the assembled multi-ribbed base plate to be removed from the mold when it is prefabricated using a mold.

[0046] In some embodiments, a fixing rib 8 is installed in the assembly groove 4, and the fixing rib 8 is U-shaped or V-shaped. Both ends of the fixing rib 8 are fixed in the inner wall of the assembly groove 4, so that the fixing rib 8 can be sleeved with the metal bellows 3. The fixing rib 8 can clamp the ends of the metal bellows 3 to keep it in a stable position. When two adjacent assembled multi-ribbed bottom plates are butt-jointed, the ends of the two relatively metal bellows 3 can be aligned to ensure that the connecting steel bars 5 can pass through in sequence. And after pouring concrete in the assembly groove 4, the fixing rib 8 can serve as the skeleton of the poured concrete to improve the stability of the concrete.

[0047] In some embodiments, the rib beam 2 has two metal bellows 3, the outer ends of the two metal bellows 3 are respectively located on the left and right sides of the corresponding assembly groove 4, one end of the fixing rib 8 is horizontally fixed in the side wall of the assembly groove 4, and the other end is vertically fixed in the bottom plate of the assembly groove 4. The bimetallic bellows 3 enable two connecting steel bars 5 to pass through one rib beam 2, thereby improving the bearing capacity and seismic resistance of the prefabricated floor slab. The metal bellows 3 are separated on both sides so that they are located at the bottom corners on both sides of the assembly groove 4. The fixing ribs 8 are respectively connected to the side walls and the bottom plate to fix the metal bellows 3 in position, thereby reducing the required length of the fixing ribs 8 and reducing the construction cost.

[0048] Based on the above-mentioned assembled ribbed bottom plate, Figures 5 and 6 As shown, the utility model further provides a connection node structure of an assembled multi-ribbed bottom plate, and the two assembled multi-ribbed bottom plates are respectively a first prefabricated plate 11 and a second prefabricated plate 12.

[0049] One side edge of the first precast panel 11 is in contact with the opposite side edge of the second precast panel 12, and the ribs 2 of the first precast panel 11 are aligned with the corresponding ribs 2 on the second precast panel 12 in the longitudinal direction, and the end faces are in contact with each other, so that the two opposite assembly grooves 4 are combined into a grouting connection groove 6, and the grouting connection groove 6 is filled with concrete.

[0050] The connecting steel bars 5 inserted through the metal corrugated tube 3 of the first precast panel 11 are longitudinally inserted into the metal corrugated tube 3 corresponding to the second precast panel 12. The grouting connection groove 6 is provided with a wire mesh sleeve 9, and the two ends of the wire mesh sleeve 9 are respectively connected to the two opposite metal corrugated tubes 3 in the grouting connection groove 6.

[0051] The wire mesh sleeve 9 is a sleeve structure made of a rolled steel mesh, which is wrapped around the ends of the two metal bellows 3. When the concrete is filled into the grouting connection groove 6, it can prevent the concrete from entering the interior from the ends of the metal bellows 3, and block the concrete outside the wire mesh sleeve 9, so that the operation of filling the grouting connection groove 6 with concrete can precede the pouring of high-strength grouting material into the metal bellows 3, or the two steps can be performed simultaneously, thereby improving the construction efficiency. The wire mesh sleeve 9 can also serve as a protective structure to prevent the poured concrete from flattening the metal bellows 3, ensure the cross-sectional area of ​​the port of the metal bellows 3, and further ensure that the high-strength grouting material overflows smoothly during filling. The wire mesh sleeve 9 can also serve as a skeleton structure to support concrete and improve the stability of concrete.

[0052] In some embodiments, the outer end of the metal bellows 3 and the end surface of the corresponding rib beam 2 are recessed inward to ensure that the edges of the assembled multi-ribbed base plate are in contact with each other. After the two assembly grooves 4 are connected to form a grouting connection groove 6, a gap is left between the ends of the two metal bellows 3 in the groove to ensure that the high-strength grouting material filled in the metal bellows 3 overflows, thereby ensuring the quality of the filling construction.

[0053] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0054] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. An assembled multi-ribbed floor, comprising a plate body, the plate body having a plurality of longitudinally arranged rib beams, the rib beams having a metal corrugated tube arranged along the length direction thereof; It is characterized in that The end surface of the rib beam is flush with the edge of the plate body, and both ends of the rib beam are provided with assembly grooves, the top and outer ends of the assembly grooves are open, and the metal bellows extends through the inner wall of the inner end of the assembly groove and extends into the assembly groove.

2. The assembled multi-ribbed floor according to claim 1, characterized in that: The rib beam protrudes downward relative to the bottom surface of the plate body, and the top surface of the assembly groove is flush with the top surface of the plate body.

3. The assembled ribbed floor according to claim 1, characterized in that: The metal bellows is located at the bottom of the rib beam, and the extended metal bellows falls on the bottom plate of the assembly groove.

4. The assembled multi-ribbed floor according to claim 1, characterized in that: The assembly groove is an inverted trapezoidal groove.

5. The assembled ribbed floor according to claim 1, characterized in that: A key groove is arranged on the inner wall of the inner end of the assembly groove.

6. The assembled ribbed floor according to claim 5, characterized in that: The transverse section and the vertical section of the keyway are both trapezoidal, so that the keyway gradually expands from the inside to the outside.

7. The assembled ribbed floor according to claim 1, characterized in that: A fixing rib is arranged in the assembly groove, and the fixing rib is U-shaped or V-shaped. Both ends of the fixing rib are fixed in the inner wall of the assembly groove so that the fixing rib can be sleeved on the metal bellows.

8. The assembled ribbed floor according to claim 7, characterized in that: The rib beam has two metal bellows, and the outer ends of the two metal bellows are respectively located on the left and right sides of the corresponding assembly groove. One end of the fixing rib is horizontally fixed in the side wall of the assembly groove, and the other end is vertically fixed in the bottom plate of the assembly groove.

9. A connection node structure of an assembled multi-ribbed floor, characterized in that: The invention comprises two prefabricated multi-ribbed bottom plates according to any one of claims 1 to 8, which are a first prefabricated plate and a second prefabricated plate; One side edge of the first prefabricated plate is in contact with the opposite side edge of the second prefabricated plate, the rib beams of the first prefabricated plate are aligned with the corresponding rib beams on the second prefabricated plate in the longitudinal direction, and the end faces are in contact with each other, so that the two opposite assembly grooves are combined into a grouting connection groove, and the grouting connection groove is filled with concrete; The connecting steel bars passed through the metal corrugated tube of the first prefabricated plate are longitudinally inserted into the metal corrugated tube corresponding to the second prefabricated plate. The grouting connection groove is provided with a wire mesh sleeve, and the two ends of the wire mesh sleeve are respectively sleeved on the two opposite metal corrugated tubes in the grouting connection groove.

10. The connection node structure of the assembled multi-ribbed floor according to claim 9, characterized in that: The outer end of the metal bellows and the end surface corresponding to the rib beam are recessed inwards.

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