Composite structure for assembling laminated slab and frame beam

Abstract

The utility model discloses a composite structure for assembling a laminated slab and a frame beam, which comprises an H-shaped steel beam, a prefabricated bottom plate and a reinforced concrete layer poured on the prefabricated bottom plate, the H-shaped steel beam is connected to a frame column, and two ends of the prefabricated bottom plate are connected to corresponding web plates of the H-shaped steel beam. The prefabricated bottom plate serves as a bottom formwork of the reinforced concrete layer, the section steel beam serves as a side formwork of the reinforced concrete layer, and the position of the prefabricated bottom plate enables the upper surface of the cast-in-place reinforced concrete layer on the upper portion of the prefabricated bottom plate to be flush with the surface of an upper wing plate of the section steel beam; a plurality of supporting beams are arranged below the prefabricated bottom plate. The prefabricated bottom plate of the laminated plate is connected with the web plate of the frame beam, the position of the prefabricated bottom plate enables the height of the concrete layer poured on the prefabricated bottom plate to be not larger than the height of the upper wing plate of the frame beam, the prefabricated bottom plate serves as a bottom formwork of the reinforced concrete layer, the frame beam serves as a side formwork, and the supporting beam is arranged at the bottom of the prefabricated bottom plate. And the arrangement of the template and the support is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of assembled composite slab and frame beam combination structure. BACKGROUND

[0002] Composite floor slab includes prefabricated bottom plate and cast-in-place reinforced concrete layer and is combined to form assembled monolithic floor slab, and its integrity is better. The prefabricated bottom plate of composite slab as the permanent formwork of concrete layer undoubtedly simplifies the workload of cast-in-place floor slab. The existing frame structure, frame beam includes H-shaped steel beam, one end of composite slab is generally connected to the upper flange of the steel beam, and the upper layer of composite floor slab, i.e. the reinforced concrete layer, still needs to be supported by formwork, and supports are still needed to be arranged below the prefabricated bottom plate for support. SUMMARY

[0003] In view of the above problems, the utility model aims to provide a kind of combination structure of assembled composite slab and frame beam which is convenient for construction.

[0004] To this end, the utility model provides a kind of combination structure of assembled composite slab and frame beam, which comprises an H-shaped steel beam, a prefabricated bottom plate and a reinforced concrete layer poured on the prefabricated bottom plate, the steel beam is connected to the frame column, the two ends of the prefabricated bottom plate are connected to the web of the corresponding steel beam, the prefabricated bottom plate serves as the bottom formwork of the reinforced concrete layer, the steel beam serves as the side formwork of the reinforced concrete layer, and the position of the prefabricated bottom plate is such that the upper surface of the reinforced concrete layer cast in place on the upper part of the prefabricated bottom plate is flush with the surface of the upper flange of the steel beam. A plurality of support beams are arranged below the prefabricated bottom plate.

[0005] Further, the prefabricated bottom plate is provided with a pre-embedded part, the pre-embedded part is connected to a connecting part, and the connecting part is connected to the web of the steel beam through high-strength bolts.

[0006] Further, the pre-embedded part is connected to a bolt perpendicular to the prefabricated bottom plate, the connecting part comprises an angle iron, the bolt on the pre-embedded part passes through the angle iron and is fixed with a nut, the high-strength bolt passes through the web of the steel beam and is fixed to the angle iron, and the angle iron is welded with a triangular reinforcing rib.

[0007] Further, the support beams are arranged perpendicular to the prefabricated bottom plate, the two ends of the support beams are fixed to the steel beam through bolts, and the distance between adjacent support beams is equal.

[0008] Further, the end of the support beam is welded with a connecting plate, the connecting plate has a wing piece extending beyond the outer wall of the support beam, the wing piece is provided with a hole, and the high-strength bolt passes through the hole on the wing piece and the hole on the web of the support beam and is fixed with a nut.

[0009] Further, a joint is arranged between adjacent prefabricated bottom plates, the joint is provided with a joint formwork, and the two sides of the joint formwork are connected to the prefabricated bottom plates.

[0010] Further, the cross section of the joint template is U-shaped, the side wall of the joint template is matched with the two sides of the prefabricated bottom plate, the prefabricated bottom plate is provided with embedded bolts matched with the side wall of the joint template, and the embedded bolts and nuts fix the joint template on the prefabricated bottom plate, the outer bottom surface of the joint template is lower than the lower surface of the prefabricated bottom plate, and the support beam is provided with a groove matched with the joint template.

[0011] The joint template can also adopt the following scheme, the two sides of the joint template are provided with a plurality of connecting ears for fixing the joint template in cooperation with embedded bolts in the prefabricated bottom plate, and the upper surface of the joint template is flush with the lower surface of the prefabricated bottom plate or the two sides of the joint template are provided with baffle plates matched with the prefabricated bottom plate.

[0012] The joint template can also adopt the following scheme, the prefabricated bottom plate is embedded with connecting bolts perpendicular to the lower surface of the prefabricated bottom plate, and the bolts pass through the joint template and are fixed with nuts.

[0013] Further, the connecting bolt is of a split structure, a threaded pipe is embedded on the prefabricated bottom plate, the threaded pipe is matched with a threaded rod, the threaded rod is provided with threads at both ends, one end is matched with the threaded pipe, and the other end is connected with a nut through the joint template, and the hole after the threaded rod is removed is filled with concrete mortar.

[0014] The beneficial technical effects of the utility model are as follows:

[0015] The prefabricated bottom plate of the composite board is connected with the web of the frame beam, the position of the prefabricated bottom plate makes the height of the concrete layer poured above not greater than the height of the upper flange plate of the frame beam, the prefabricated bottom plate serves as the bottom formwork of the reinforced concrete layer, the frame beam serves as the side formwork, and the bottom of the prefabricated bottom plate is provided with a support beam, so that the setting of the formwork and the support is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a top view schematic view of the prefabricated bottom plate and the H-shaped steel beam in the specific embodiment;

[0017] Figure 2 It is a schematic view of the connecting plate of the steel beam;

[0018] Figure 3 It is a schematic view of the connection between the prefabricated bottom plate and the steel beam;

[0019] Figure 4 It is a schematic view of the first embodiment of the joint;

[0020] Figure 5 It is a schematic view of the joint template connecting ear;

[0021] Figure 6 It is a schematic view of the second embodiment of the joint.

[0022] Signs: 1, frame column; 2, profiled steel beam; 201, upper wing plate; 202, web; 203, lower wing plate; 3, support beam; 4, prefabricated bottom plate; 5, concrete layer; 6, connecting plate; 601, fin; 7, angle iron; 701, reinforcing rib; 8, joint; 9, joint formwork; 901, connecting lug; 10, embedded part; 101, threaded pipe; 102, screw rod; 11, nut. DETAILED DESCRIPTION

[0023] To further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0024] According to Figures 1 to 6 , a kind of assembled composite slab and frame beam combined structure of the utility model, including H profiled steel beam 2, prefabricated bottom plate 4 and pouring reinforced concrete layer 5 on prefabricated bottom plate 4, profiled steel beam 2 is connected on frame column 1, the both ends of prefabricated bottom plate 4 are connected on the web 202 of corresponding profiled steel beam, prefabricated bottom plate 4 is as the bottom mold plate of reinforced concrete layer 5 pouring, profiled steel beam 2 is as the side mold plate of reinforced concrete layer 5 pouring, the position of prefabricated bottom plate 4 makes that the upper surface of reinforced concrete layer 5 pouring on the upper part of prefabricated bottom plate 4 is flush with the surface of upper wing plate 201 of profiled steel beam;Several support beams 3 are arranged below prefabricated bottom plate 4.

[0025] Referring to Figure 3 , profiled steel beam 2 includes upper wing plate 201, web 202 and lower wing plate 203, profiled steel beam 2 can be poured on frame column 1 or connected on frame column 1 by bolt.Profiled steel beam 2 and frame column 1 form frame structure.

[0026] Referring to Figure 1 and Figure 2 , support beam 3 can be made of steel, support beam 3 is perpendicular to corresponding profiled steel beam 2, the length of support beam 3 matches the distance between the opposite two profiled steel beams 2, the end of support beam 3 is welded with square connecting plate 6, connecting plate 6 has fin 601 beyond the outer wall of support beam 3, that is, the length or width or side length of connecting plate 6 is greater than the length, width or side length of the section of corresponding support beam 3, hole is arranged on fin 601, high-strength bolt passes through the hole on fin 601 and the hole on the web 202 of support beam and is fixed with nut, multiple support beams 3 can be arranged, the distance between adjacent support beams is equal.In this embodiment, the positions of prefabricated bottom plate 4, reinforced concrete layer 5 and support beam 3 are determined first, and support beam 3 is installed on profiled steel beam 2.

[0027] Referring to Figure 1 , Figure 3 andFigure 4 As shown, the prefabricated bottom plate 4 is poured with concrete in a factory, and the steel bars are arranged in the prefabricated bottom plate 4, which extends out of the prefabricated bottom plate 4. The prefabricated bottom plate 4 is internally embedded with a metal plate such as a steel plate, which can be welded and fixed with the steel bars, and the embedded part is connected with the connecting part. After the prefabricated bottom plate 4 is processed, it is transported to the construction site, hoisted to the upper side of the support beam, and connected to the steel beam 2. The connecting part is connected to the web 202 of the steel beam 2 through high-strength bolts. The connecting part can include a perforated plate connected to the end of the prefabricated bottom plate 4, which is connected to the web 202 of the steel beam through high-strength bolts. In this embodiment, the connecting part uses bolts vertically extending from the lower surface of the prefabricated bottom plate 4, which passes through the angle iron 7 to fix the angle iron 7 on the lower surface of the prefabricated bottom plate 4. The other side of the angle iron 7 is fixed with the web 202 of the steel beam, which can be fixed with high-strength bolts. In order to further improve the strength, the angle iron 7 is provided with a triangular reinforcing rib 701.

[0028] Referring to Figure 1 , Figures 4 to 6 As shown, the prefabricated bottom plate 4 is arranged perpendicularly to the support beam 3, which is supported on the lower surface of the prefabricated bottom plate 4. The prefabricated bottom plates 4 are arranged in parallel, leaving a joint 8 in the middle. The joint 8 is provided with a joint formwork 9, and the support beam 3 is supported on the joint formwork 9. The joint formwork 9 is a permanent formwork or a removable formwork. The steel bars of adjacent prefabricated bottom plates 4 can be connected by welding or using threaded pipes 101. The upper layer of steel bars can be arranged on the prefabricated bottom plate 4, and the reinforced concrete layer is poured to form a composite floor slab. The support beam 3 described above can be used as a permanent structure and is not removed. When the structure is removed using the support beam 3, the shear steel bars in the joint 8 can be arranged in the manner of the prior art. Of course, the shear steel bars can also be arranged without removing the support beam.

[0029] Referring to Figure 4 As shown in the first embodiment of the joint 8, the cross section of the joint formwork 9 is U-shaped, and the side wall of the joint formwork 9 is matched with the two sides of the prefabricated bottom plate 4. The prefabricated bottom plate 4 is provided with embedded bolts matched with the side wall of the joint formwork 9. The embedded bolts and nuts fix the joint formwork 9 on the prefabricated bottom plate 4. The outer bottom surface of the joint formwork 9 is lower than the lower surface of the prefabricated bottom plate 4, and the support beam 3 is provided with a groove matched with the joint formwork 9. The joint formwork 9 can also not be provided with a side wall, but a plurality of connecting ears 901 are arranged at intervals on the two sides of the joint formwork 9. Referring to Figure 5 As shown, the connecting ears 901 are used to fix the joint formwork 9 by matching with the embedded bolts in the prefabricated bottom plate 4. The upper surface of the joint formwork 9 is flush with the lower surface of the prefabricated bottom plate 4, or the two sides of the joint formwork 9 are provided with baffles matched with the prefabricated bottom plate 4, so that no gap is generated, preventing concrete leakage.

[0030] Referring to Figure 6As shown, the second embodiment of the joint 8 is compared with the first embodiment of the joint template 9, which is a permanent template. The joint template 9 is a flat plate and can be removed. The prefabricated bottom plate 4 is embedded with connecting bolts, which are perpendicular to the lower surface of the prefabricated bottom plate 4. The connecting bolts pass through the joint template 9 and are fixed with nuts. In this embodiment, the connecting bolts protruding from the lower surface of the prefabricated bottom plate 4 need to be cut off later and covered with a decorative layer such as concrete mortar. Referring to Figure 6 As shown, an improved scheme is that the connecting bolts adopt a split structure. Threaded pipes 101 are embedded on the prefabricated bottom plate 4 and are welded and fixed with the embedded part 10. The threaded pipes 101 cooperate with threaded rods 102. The threaded rods 102 are provided with threads at both ends. One end cooperates with the threaded pipe 101, and the other end passes through the joint template 9 and is connected with the nut 11. When the joint template 9 is removed, the threaded rod 102 is rotated and removed. The hole left is filled with concrete mortar.

[0031] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application to obtain equivalent embodiments. Any modification, change, modification and modification of the above embodiments according to the technical essence of the present application, which does not depart from the technical solution of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A composite slab and frame beam structure, comprising H-beams, a precast base slab, and a reinforced concrete layer cast on the precast base slab, wherein the H-beams are connected to frame columns, characterized in that: The two ends of the precast base plate are connected to the web of the corresponding steel beam. The precast base plate serves as the bottom formwork for the reinforced concrete layer, and the steel beam serves as the side formwork for the reinforced concrete layer. The position of the precast base plate is such that the upper surface of the cast-in-place reinforced concrete layer above the precast base plate is flush with the upper flange surface of the steel beam. Several support beams are provided below the precast base plate.

2. The assembled composite slab and frame beam combined structure according to claim 1, characterized in that: The precast base plate has embedded parts inside, which are connected to the connectors. The connectors are connected to the web of the steel beam by high-strength bolts.

3. The assembled composite slab and frame beam combined structure according to claim 2, characterized in that: The embedded part is connected to bolts perpendicular to the precast base plate. The connecting part includes angle iron. The bolts on the embedded part pass through the angle iron and are fixed with nuts. The high-strength bolts pass through the web of the steel beam and are fixed to the angle iron. The angle iron is welded with triangular reinforcing ribs.

4. The assembled composite slab and frame beam combined structure according to claim 1, characterized in that: The support beams are set perpendicular to the precast base plate, and both ends of the support beams are fixed to the steel beams by bolts. The distance between adjacent support beams is equal.

5. The assembled composite slab and frame beam combined structure according to claim 4, characterized in that: The end of the support beam is welded with a connecting plate. The connecting plate has a wing that extends beyond the outer wall of the support beam. The wing has holes. High-strength bolts pass through the holes on the wing and the holes on the web of the support beam and are fixed with nuts.

6. A composite structure of assembled laminated slabs and frame beams according to any one of claims 1 to 5, characterized in that: A joint is provided between adjacent precast base plates, and the joint is provided with a joint template, with both sides of the joint template connected to the precast base plate.

7. The assembled composite slab and frame beam combined structure according to claim 6, characterized in that: The joint template has a U-shaped cross-section, and its sidewalls fit with both sides of the precast base plate. The precast base plate is provided with embedded bolts that fit with the sidewalls of the joint template. The embedded bolts and nuts fix the joint template to the precast base plate. The outer bottom surface of the joint template is lower than the lower surface of the precast base plate. The support beam is provided with a groove that fits with the joint template.

8. The assembled composite slab and frame beam combined structure according to claim 6, characterized in that: The joint template has several connecting ears on both sides, which are used to fix the joint template with the pre-embedded bolts in the precast base plate. The upper surface of the joint template is flush with the lower surface of the precast base plate, or the joint template has baffles on both sides, which cooperate with the precast base plate.

9. The assembled composite slab and frame beam combined structure according to claim 6, characterized in that: The precast base plate has pre-embedded connecting bolts, which are perpendicular to the lower surface of the precast base plate. The bolts pass through the joint template and are fixed with nuts.

10. The assembled composite slab and frame beam combined structure according to claim 9, characterized in that: The connecting bolts are of a detachable structure. The precast base plate has a threaded pipe embedded in it. The threaded pipe is fitted with the screw rod. Both ends of the screw rod are threaded. One end is fitted with the threaded pipe, and the other end passes through the joint template and is connected to the nut. The hole after the screw rod is removed is filled with concrete mortar.

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