A construction lateral support structure for non-stud laminated board

Abstract

The utility model relates to a support structure technical field especially relates to a kind of construction lateral support structure for not out muscle laminated slab.It mainly aims at the time difference of prefabricated slab and post-cast concrete layer during the construction of fabricated steel-concrete composite structure, weak structure stiffness and stability, beam body is prone to transverse displacement due to insufficient lateral constraint even stability failure problem, the following technical scheme is proposed, including two groups of parallelly arranged beam body, multiple groups of prefabricated slab are set on the beam body, multiple groups of notches are set in the four sides of the prefabricated slab, multiple groups of the notches are equidistant array distribution;Additional reinforcement is installed in the notch;Multiple groups of stud bolt are fixedly connected to the top of the beam body, and multiple groups of the stud bolt are equidistant array distribution;Located at the angle steel of the two sides of the prefabricated slab.The utility model prevents the structure instability during the construction of not out muscle laminated slab, effectively improves construction safety, enhances structure connection strength, simultaneously adapts multiple beam body types.

Description

Technical Field

[0001] This utility model relates to the field of support structure technology, and in particular to a construction lateral support structure for composite slabs without reinforcing bars. Background Technology

[0002] In the process of modern industrialized construction, the selection of structural systems requires comprehensive consideration of factors such as construction efficiency, economy, structural performance, and industrial adaptability. Traditional cast-in-place concrete structures, due to inherent defects such as long construction cycles, large amounts of wet work, high on-site labor requirements, and structural quality highly dependent on manual operation skills, can hardly meet the industrialized demands of modern construction for rapid construction and efficient operation. At the same time, although pure steel structures have the advantages of fast construction speed and high degree of industrialization, they face limitations such as high material costs, significant thermal bridging effects leading to increased building energy consumption, and high maintenance costs, which restricts their application in large-scale civil buildings.

[0003] To balance construction efficiency and economic costs, prefabricated steel-concrete composite structures, which combine the advantages of steel and concrete structures, have gradually become a research and application hotspot. Among them, unreinforced concrete composite slabs have attracted much attention due to their ability to eliminate the protruding reinforcing bars found in traditional composite slabs, simplifying the production and on-site installation of prefabricated components and further improving construction convenience.

[0004] However, during the construction of unreinforced concrete composite slabs, due to the time difference between the precast slab and the subsequent concrete layer, the overall stiffness and stability of the structure are weak before the subsequent concrete has been poured and reached its design strength. At this time, load-bearing components such as beams rely only on the temporary connection of the precast slab, which is prone to lateral displacement due to insufficient lateral restraint, and may even lead to structural instability failure, seriously affecting construction safety and the quality of subsequent structures. In view of this, this utility model proposes a lateral support structure for unreinforced concrete composite slabs. Utility Model Content

[0005] The purpose of this invention is to address the problem in the background technology that during the construction of prefabricated steel-concrete composite structures, due to the time difference between the precast slab and the post-cast concrete layer, the structural stiffness and stability are weak, and the beam is prone to lateral displacement or even stability failure due to insufficient lateral restraint. This invention proposes a construction lateral support structure for composite slabs without reinforcement.

[0006] The technical solution of this utility model is as follows: a construction lateral support structure for composite slabs without reinforcing bars, comprising two sets of parallel beams, multiple sets of precast slabs set on the beams, each of the four sides of the precast slabs having multiple sets of slots, the multiple sets of slots being equidistantly arranged; additional reinforcing bars installed in the slots; multiple sets of studs fixedly connected to the top of the beams, the multiple sets of studs being equidistantly arranged; and angle steel located on both sides of the precast slabs, the angle steel being L-shaped and closely attached to the sides of the precast slabs.

[0007] Optionally, the length of the angle steel is less than the distance between two adjacent sets of slots, the width of the angle steel is less than the distance between the precast slab and the stud, and the height of the angle steel is less than the thickness of the precast slab.

[0008] Optionally, the angle steel is fixedly connected to the beam.

[0009] Optionally, it also includes clamping assemblies clamping at both ends of the beam, and a positioning mechanism is connected between the two sets of clamping assemblies on the same side. The positioning mechanism works with the clamping assemblies to fix the beam after the distance between the two sets of beams is adjusted.

[0010] Optionally, the clamping assembly includes a mounting plate disposed at one end of the beam. Both ends of the mounting plate are fixedly connected to side plates. A bidirectional threaded rod is rotatably connected between the two sets of side plates. The two ends of the bidirectional threaded rod have opposite thread directions and are respectively threaded to threaded sleeves. Two sets of sliders are fixedly connected to the side of the threaded sleeves near the beam. The sliders are slidably connected in the mounting plate. A clamping plate is fixedly connected to the end of the sliders away from the threaded sleeves.

[0011] Optionally, a positioning block is rotatably connected at the middle position of the bidirectional threaded rod, and the positioning block is fixedly connected to the mounting plate.

[0012] Optionally, one end of the bidirectional threaded rod passes through the side plate and is fixedly connected to a connecting rod, and a rotating handle is installed at the end of the connecting rod away from the bidirectional threaded rod.

[0013] Optionally, the positioning mechanism includes two sets of sleeves, each of which is slidably connected to a slide rod. The ends of the two sets of sleeves that are far from the slide rods are respectively fixedly connected to a fixed cylinder. The mounting plates in the two sets of clamping assemblies are respectively fixedly connected to the two sets of fixed cylinders.

[0014] Optionally, a fixing plate is fixedly connected between the two sets of sleeves. A screw is threaded onto the fixing plate, and a pressure plate is fitted around the outer ring of the screw. A sliding groove is provided at the corresponding position of the sleeve and the pressure plate. The pressure plate is slidably connected in the sliding groove and contacts the sliding rod.

[0015] In summary, this application includes at least one of the following beneficial technical effects: This utility model effectively restricts the lateral displacement of the precast slab and achieves horizontal force transmission by tightly attaching angle steel to the side of the precast slab and welding it to the beam. Furthermore, by working together with the clamping components and the positioning mechanism, the distance between the two sets of beams can be precisely adjusted and fixed to prevent the beams from shifting laterally. The combination of the two can prevent the structure from failing to maintain stability before the concrete post-pour layer is poured, thus ensuring construction safety. In summary, this utility model prevents structural instability during the construction of composite slabs without reinforcing bars, effectively improves construction safety, enhances structural connection strength, and is compatible with various beam types. Attached Figure Description

[0016] Figure 1 A structural schematic diagram of a construction lateral support structure for composite slabs without reinforcing bars is provided. Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Enlarged view of point B in the middle; Figure 4 This is a cross-sectional structural diagram of the clamping plate; Figure 5 This is a cross-sectional structural diagram of the pressure plate.

[0017] Figure label: 1. Beam body; 2. Precast slab; 21. Groove; 3. Additional reinforcing bars; 4. Studs; 5. Angle steel; 6. Clamping assembly; 61. Mounting plate; 62. Side plate; 63. Double-ended threaded rod; 64. Threaded sleeve; 65. Slider; 66. Clamping plate; 67. Positioning block; 68. Connecting rod; 69. Rotating handle; 7. Positioning mechanism; 71. Sleeve; 72. Slide rod; 73. Fixed cylinder; 74. Fixed plate; 75. Screw; 76. Pressure plate; 77. Slide groove. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1 like Figure 1 As shown, this utility model proposes a lateral support structure for construction of composite slabs without reinforcing bars. It includes two sets of parallel beams 1, multiple sets of precast slabs 2 mounted on the beams 1, and multiple sets of slots 21 on each of the four sides of the precast slabs 2, arranged in an equidistant array. Additional reinforcing bars 3 are installed in the slots 21, and multiple sets of shear studs 4 are fixedly connected to the top of the beams 1, also arranged in an equidistant array. The additional reinforcing bars 3 and shear studs 4 increase the strength of the connection between the beams 1 and the precast slabs 2 after concrete pouring.

[0024] Furthermore, the aforementioned support structure also includes angle steels 5 located on both sides of the precast slab 2. The angle steels 5 are L-shaped and closely attached to the sides of the precast slab 2. The length of the angle steel 5 is less than the distance between two adjacent sets of slots 21, the width of the angle steel 5 is less than the distance between the precast slab 2 and the studs 4, and the height of the angle steel 5 is less than the thickness of the precast slab 2. The angle steels 5 are welded and fixed to the beam 1. During the construction phase, the angle steels 5 transmit horizontal forces to the precast slab 2, restricting its lateral displacement and providing effective lateral support.

[0025] In this embodiment, if necessary, expansion bolts or chemical bolts can be driven horizontally into the angle steel 5 in the direction of the precast slab 2 to further enhance the lateral support constraint strength.

[0026] It is worth mentioning that beam 1 can be made of steel or concrete; if beam 1 is a concrete beam, the stud 4 is the outward stirrup of beam 1.

[0027] In this embodiment, the precast slab 2 is first placed on two sets of parallel beams 1. Then, the position of one set of beams 1 is adjusted so that the side of the angle steel 5 contacts the precast slab 2. This fixes the spacing between the two sets of beams 1, ensuring the stability of the beam 1 position. During construction, the angle steel 5 can transmit horizontal force to the precast slab 2, effectively limiting the lateral displacement of the precast slab 2 and providing reliable lateral support. If necessary, expansion bolts or chemical bolts can be driven horizontally into the precast slab 2 to further enhance the lateral support constraint strength of the angle steel 5 on the precast slab 2.

[0028] Example 2 like Figure 1 , Figure 2 and Figure 4 As shown, based on Embodiment 1, the above-mentioned support structure further includes clamping components 6 clamping both ends of the beam 1. A positioning mechanism 7 is connected between the two sets of clamping components 6 on the same side. The positioning mechanism 7 cooperates with the clamping components 6 to fix them after the distance between the two sets of beams 1 is adjusted. The clamping components 6 include a mounting plate 61 disposed at one end of the beam 1. Side plates 62 are fixedly connected to both ends of the mounting plate 61. A bidirectional threaded rod 63 is rotatably connected between the two sets of side plates 62. The bidirectional threaded rod 63 rotates relative to the mounting plate 61 under the action of the side plates 62. The two ends of the bidirectional threaded rod 63 have opposite thread directions and are respectively threadedly connected to threaded sleeves 64. When the bidirectional threaded rod 63 rotates, it drives the two sets of threaded sleeves 64 to move synchronously, and the two sets of threaded sleeves 64 move in opposite directions. Two sets of sliders 65 are fixedly connected to the side of the threaded sleeves 64 near the beam 1. The sliders 65 are slidably connected in the mounting plate 61. Through the limiting action of the sliders 65, the rotation of the bidirectional threaded rod 63 is prevented from driving the threaded sleeves 64 to rotate, ensuring that the threaded sleeves 64 perform stable linear motion. A clamping plate 66 is fixedly connected to the end of the slider 65 away from the threaded sleeve 64. When the threaded sleeve 64 moves, the clamping plate 66 moves via the slider 65. When the two sets of clamping plates 66 approach and clamp the beam 1, the clamping assembly 6 is fixed to one end of the beam 1. A positioning block 67 is rotatably connected to the middle position of the bidirectional threaded rod 63. The positioning block 67 is fixedly connected to the mounting plate 61. The positioning block 67 provides support at the middle position of the bidirectional threaded rod 63, ensuring smooth rotation of the bidirectional threaded rod 63. One end of the bidirectional threaded rod 63 passes through the side plate 62 and is fixedly connected to a connecting rod 68. A rotating handle 69 is installed at the end of the connecting rod 68 away from the bidirectional threaded rod 63. The rotating handle 69 is connected to the bidirectional threaded rod 63, facilitating rotation of the bidirectional threaded rod 63.

[0029] Furthermore, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the positioning mechanism 7 includes two sets of sleeves 71, each with a sliding rod 72 slidably connected to it. A fixed cylinder 73 is fixedly connected to the ends of the sleeves 71 and the sliding rods 72 that are furthest apart. Mounting plates 61 in the two sets of clamping assemblies 6 are fixedly connected to the two fixed cylinders 73. Thus, when the sliding rod 72 slides within the sleeves 71, the distance between the two sets of clamping assemblies 6 can be adjusted, thereby adjusting the distance between the two sets of beams 1. A fixed plate 74 is fixedly connected between the two sets of sleeves 71, and the position of the fixed plate 74 is fixed. A screw 75 is threaded onto the fixed plate 74, and the screw 75 moves along its length direction when rotated. A pressure plate 76 is fitted around the outer ring of the screw 75. A groove 77 is provided at the corresponding position of the sleeve 71 and the pressure plate 76. The pressure plate 76 is slidably connected in the groove 77 and contacts the sliding rod 72. Rubber pads are provided at the corresponding positions of the pressure plate 76 and the sliding rod 72 to increase friction. When screw 75 moves, it causes pressure plate 76 to approach and press slide bar 72, preventing slide bar 72 from sliding in sleeve 71 through friction, thereby fixing the distance between the two sets of beams 1.

[0030] In this embodiment, after the precast slab 2 is placed on two sets of parallel beams 1, the bidirectional threaded rod 63 in the clamping assembly 6 rotates under the drive of the rotating handle 69. Since the threads at both ends of the rod are in opposite directions, and the threaded sleeve 64 is slidably connected to the mounting plate 61 through the slider 65, the rotation of the bidirectional threaded rod 63 will drive the two sets of threaded sleeves 64 and the connected clamping plates 66 to move synchronously in opposite directions, so that the clamping plates 66 approach and clamp the end of the beam 1, thereby fixing the clamping assembly 6 on the beam 1. Then, the position of one set of beams 1 is adjusted so that the side of the angle steel 5 contacts the precast slab 2. At this time, the slide rod 72 can slide in the sleeve 71 to adjust the distance between the two sets of clamping assemblies 6, thereby realizing the adjustment of the distance between the two sets of beams 1. After the spacing is determined, rotate the screw 75 on the fixing plate 74. The screw 75 drives the pressure plate 76 to slide in the slide groove 77 and press the slide rod 72. The friction between the pressure plate 76 and the slide rod 72 is increased by the rubber pad, which prevents the slide rod 72 from sliding in the sleeve 71, thereby fixing the spacing between the two sets of beams 1 and ensuring the stability of the beam 1 position.

[0031] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A construction lateral support structure for composite slabs without reinforcing bars, characterized in that, include: Two sets of parallel beams (1), multiple sets of precast slabs (2) set on the beams (1), multiple sets of slots (21) are opened on the four sides of the precast slabs (2), and the multiple sets of slots (21) are distributed in an equidistant array; Additional reinforcing bars (3) installed in the slot (21); Multiple sets of studs (4) are fixedly connected to the top of the beam (1), and the multiple sets of studs (4) are distributed in an equidistant array; Angle steel (5) is located on both sides of the precast slab (2). The angle steel (5) is L-shaped and closely attached to the side of the precast slab (2).

2. The construction lateral support structure for unreinforced composite slabs according to claim 1, characterized in that, The length of the angle steel (5) is less than the distance between two adjacent sets of slots (21), the width of the angle steel (5) is less than the distance between the precast plate (2) and the stud (4), and the height of the angle steel (5) is less than the thickness of the precast plate (2).

3. A construction lateral support structure for composite slabs without reinforcing bars according to claim 2, characterized in that, The angle steel (5) is fixedly connected to the beam (1).

4. A construction lateral support structure for composite slabs without reinforcing bars according to claim 3, characterized in that, It also includes clamping components (6) clamping at both ends of the beam (1), and a positioning mechanism (7) is connected between the two sets of clamping components (6) on the same side. The positioning mechanism (7) works with the clamping components (6) to fix the beam (1) after the distance between the two sets of beams (1) is adjusted.

5. A construction lateral support structure for a composite slab without reinforcing bars according to claim 4, characterized in that, The clamping assembly (6) includes a mounting plate (61) disposed at one end of the beam (1). Both ends of the mounting plate (61) are fixedly connected to side plates (62). A bidirectional threaded rod (63) is rotatably connected between the two sets of side plates (62). The two ends of the bidirectional threaded rod (63) have opposite thread directions and are respectively threaded to threaded sleeves (64). Two sets of sliders (65) are fixedly connected to the side of the threaded sleeve (64) near the beam (1). The sliders (65) are slidably connected in the mounting plate (61). A clamping plate (66) is fixedly connected to the end of the slider (65) away from the threaded sleeve (64).

6. A construction lateral support structure for a composite slab without reinforcing bars according to claim 5, characterized in that, The bidirectional threaded rod (63) is rotatably connected to a positioning block (67) at the middle position, and the positioning block (67) is fixedly connected to the mounting plate (61).

7. A construction lateral support structure for a composite slab without reinforcing bars according to claim 6, characterized in that, One end of the bidirectional threaded rod (63) passes through the side plate (62) and is fixedly connected to a connecting rod (68). A rotating handle (69) is installed on the end of the connecting rod (68) away from the bidirectional threaded rod (63).

8. A construction lateral support structure for a composite slab without reinforcing bars according to claim 7, characterized in that, The positioning mechanism (7) includes two sets of sleeves (71), each set of sleeves (71) is slidably connected to a slide rod (72), and each set of sleeves (71) is fixedly connected to a fixed cylinder (73) at the end of each set of sleeves (71) that is far away from the two sets of slide rods (72). The mounting plates (61) in the two sets of clamping assemblies (6) are fixedly connected to the two sets of fixed cylinders (73).

9. A construction lateral support structure for a composite slab without reinforcing bars according to claim 8, characterized in that, A fixing plate (74) is fixedly connected between the two sets of sleeves (71). A screw (75) is threaded onto the fixing plate (74). A pressure plate (76) is fitted around the outer ring of the screw (75). A sliding groove (77) is provided at the corresponding position of the sleeve (71) and the pressure plate (76). The pressure plate (76) is slidably connected in the sliding groove (77) and contacts the sliding rod (72).

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