Laminated slab splicing structure

Abstract

The utility model discloses a laminated slab splicing structure which comprises two laminated slabs, each laminated slab is provided with at least one splicing side, the edge of the upper end of each splicing side is provided with a chamfer, the splicing sides of the two laminated slabs are adjacent to each other, and a slurry leakage gap is formed between the splicing sides of the two laminated slabs. A grouting splicing space located above the slurry leakage gap is formed in the chamfer position of the splicing side of the two laminated slabs, and pre-buried extending ribs extend out of the upper surfaces of the laminated slabs; the seam sealing structure is used for sealing the slurry leakage gap; the additional rib stretches across the grouting splicing space, and the two ends of the additional rib are connected with the extending ribs of the two laminated slabs; and the cast-in-place layer is formed on the upper surface of the laminated slab and wraps the additional ribs and the extending ribs. According to the laminated slab, the additional ribs stretch across the grouting splicing space and are connected with the extending ribs of the two laminated slabs, and then the cast-in-place layers are formed on the upper surfaces of the laminated slabs in a pouring mode, so that the additional ribs and the extending ribs are wrapped, and splicing of the laminated slabs is achieved; and the grout leakage gap is blocked through the gap sealing structure, and grout leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a composite plate splicing structure. Background Art

[0002] Composite slabs are prefabricated parts, which can greatly improve construction efficiency. Composite slabs can also be mass-produced in factories in a standardized manner to ensure quality consistency.

[0003] In order to ensure the structural strength of the composite slabs, anchor steel bars are usually set around the composite slabs. There will be a 300mm wide post-cast strip when the composite slabs are spliced ​​together. The post-cast strip needs to be supported by a separate formwork. However, there are major quality risks such as leakage and uneven joints between the post-cast strip and the composite slabs. In addition, the post-cast strip needs to be supported by a separate support frame and formwork, which increases the cost of the overall support frame.

[0004] If the anchor steel bars around the composite plates are removed, the connection strength between the composite plates will be insufficient, and in the actual construction process, the sides of the composite plates cannot be completely fitted together, and there will still be gaps for leakage. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a composite board splicing structure, which can ensure the structural strength of the composite board splicing, eliminate the post-casting strip, and seal the gap for slurry leakage.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A composite plate splicing structure comprises: two composite plates, each of which has at least one splicing side, wherein the upper edge of the splicing side is provided with a chamfer, the splicing sides of the two composite plates are adjacent to each other and form a leakage gap, and a grouting splicing space located above the leakage gap is formed at the chamfer of the splicing sides of the two composite plates, wherein the grouting splicing space is used for pouring caulking material, and pre-buried protruding ribs extend from the upper surface of the composite plate; a sealing structure for sealing the leakage gap; additional ribs spanning the grouting splicing space, and having two ends connected to the protruding ribs of the two composite plates; a cast-in-place layer formed on the upper surface of the composite plate and wrapping the additional ribs and the protruding ribs.

[0008] Furthermore, a bottom reinforcement net is embedded in the composite plate, the bottom of the protruding reinforcement is connected to the bottom reinforcement net, the bottom reinforcement net is composed of transverse reinforcements arranged transversely and longitudinal reinforcements arranged longitudinally, the transverse reinforcements are arranged longitudinally, and the longitudinal reinforcements are connected to the transverse reinforcements and arranged transversely.

[0009] Furthermore, the protruding ribs are arranged in a longitudinal arrangement, and the upper ends of the protruding ribs are connected to series steel bars, and the series steel bars connect the longitudinally arranged protruding ribs in series.

[0010] Furthermore, a reinforcing rib mesh is pre-embedded in the cast-in-place layer.

[0011] Furthermore, the protruding ribs are arranged in a longitudinal direction, and a plurality of the additional ribs are arranged in a longitudinal direction to be connected with a plurality of pairs of protruding ribs.

[0012] Furthermore, it also includes a through-length steel bar to connect the plurality of additional bars arranged longitudinally in series.

[0013] Furthermore, the sealing structure is a bottom sealing plate, which is installed at the bottom of the composite plate to seal the bottom outlet of the slurry leakage gap.

[0014] Furthermore, the bottom sealing plate is provided with an insert plate inserted into the grout leakage gap, the upper end of the insert plate is provided with a threaded column extending to the grouting splicing space, the threaded column is threadedly connected with a tightening nut, and the tightening nut is against the chamfered inclined surface.

[0015] Furthermore, a groove for inserting the plug board is provided at the bottom edge of the splicing side.

[0016] Furthermore, a sealing gasket is attached to the upper surface of the bottom sealing plate, the sealing gasket is clamped between the top wall of the groove and the bottom sealing plate, and the sealing gasket is provided with a through hole for the insertion plate to pass through.

[0017] The utility model has the following beneficial effects:

[0018] The composite slabs span the grouting splicing space through additional reinforcement and are connected to the protruding reinforcement of the two composite slabs. A cast-in-place layer is then poured on the surface of the composite slabs to wrap the additional reinforcement and the protruding reinforcement, thereby realizing the splicing between the composite slabs. Due to the connection between the additional reinforcement and the protruding reinforcement, the structural strength of the splicing is also guaranteed. The gaps where grout is leaking are sealed by a sealing structure to avoid leakage. After the composite slabs do not need to be surrounded by anchor steel bars, the composite slabs can be close together, eliminating the post-cast strips, avoiding major leakage, uneven joints and other quality hazards between the post-cast strips and the composite slabs, and there is no need to separately support support frames and formwork for the post-cast strips, thereby reducing the overall support frame cost and improving construction efficiency.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative 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:

[0021] Figure 1It is a cross-sectional view of the joint of two superimposed plates of the utility model;

[0022] Figure 2 yes Figure 1 A magnified view of point A;

[0023] Figure 3 It is a partial axonometric view of the joint of two superimposed plates;

[0024] Figure 4 yes Figure 3 A magnified view of point B;

[0025] Figure 5 yes Figure 3 Schematic diagram of the decomposed state structure;

[0026] Figure 6 yes Figure 5 Enlarged view of point C;

[0027] Figure 7 It is a top view of the composite plate.

[0028] Legend:

[0029] Composite plate 100, chamfer 110, grout leakage gap 111, grouting joint space 112, protruding reinforcement 120, series reinforcement 121, transverse reinforcement 130, longitudinal reinforcement 131, groove 140;

[0030] Bottom sealing plate 200, insert plate 210, threaded column 220, and tightening nut 230;

[0031] Additional reinforcement 300, full-length reinforcement 310;

[0032] Cast-in-place layer 400, reinforcement mesh 410;

[0033] Sealing gasket 500 and through hole 510 . DETAILED DESCRIPTION

[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] 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 of the utility model. 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.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] Please refer to Figure 1 and Figure 2 A composite plate splicing structure in a preferred embodiment of the present invention includes two composite plates 100, a sealing structure, additional reinforcement 300 and a cast-in-place layer 400.

[0039] The composite board 100 has at least one splicing side. If the composite board 100 only needs to be spliced ​​in one row, only one side is needed as the splicing side. If it needs to be spliced ​​with the composite boards 100 on all sides, all four sides need to be splicing sides. A chamfer 110 is provided at the upper edge of the splicing side. The splicing sides of the two composite boards 100 are adjacent and form a grout leakage gap 111. The splicing sides of the two composite boards 100 are close to each other, but due to installation errors and the uneven surface of the composite boards 100, there will still be a splicing seam when the two composite boards 100 are attached, forming a grout leakage gap 111. A grouting splicing space 112 located above the grout leakage gap 111 is formed at the chamfer 110 of the splicing sides of the two composite boards 100. The grouting splicing space 112 is used to inject caulking material, which can be mortar. Pre-buried protruding ribs 120 extend from the upper surface of the composite plate 100; the sealing structure is used to seal the leaking gap 111; the additional ribs 300 span the grouting joint space 112, and are connected at both ends to the protruding ribs 120 on the two composite plates 100; the cast-in-place layer 400 is formed on the upper surface of the composite plate 100, wrapping the additional ribs 300 and the protruding ribs 120, and the cast-in-place layer 400 is formed by pouring concrete on the upper surface of the composite plate 100. It can be understood that in order to increase the connection strength between the cast-in-place layer 400 and the composite plate 100, the protruding ribs 120 extend obliquely upward.

[0040] The utility model provides a composite plate splicing structure, in which the composite plate 100 spans the grouting splicing space 112 through the additional ribs 300 and is connected to the protruding ribs 120 of the two composite plates 100, and then a cast-in-place layer 400 is cast on the upper surface of the composite plate 100, thereby wrapping the additional ribs 300 and the protruding ribs 120, so as to achieve the splicing between the composite plates 100, and due to the connection between the additional ribs 300 and the protruding ribs 120, the structural strength of the splicing is also guaranteed; and the sealing structure is used to seal the leakage gap 111 to avoid leakage, and after the composite plate 100 does not need to be provided with anchor steel bars around it, the composite plates can be close to each other, eliminating the post-cast strip, avoiding the quality risks such as large leakage and uneven joints between the post-cast strip and the composite plate, and there is no need to separately support the support frame and template for the post-cast strip, thereby reducing the overall support frame cost and improving construction efficiency.

[0041] Reference Figure 1 In some embodiments of the present invention, a bottom reinforcement net is embedded in the composite board 100, and the bottom of the protruding reinforcement 120 is connected to the bottom reinforcement net. The bottom reinforcement net consists of transverse reinforcements 130 arranged transversely and longitudinal reinforcements 131 arranged longitudinally. The transverse reinforcements 130 are arranged longitudinally, and the longitudinal reinforcements 131 are connected to the transverse reinforcements 130 and arranged transversely. The bottom of the protruding reinforcement 120 can be connected to the connection between the longitudinal reinforcement 131 and the transverse reinforcement 130, so that the three are tied together. The structural strength of the composite board 100 is improved by setting the bottom reinforcement net, and the bottom reinforcement net is connected to the protruding reinforcement 120, so that the steel bars are connected in series as a whole, thereby improving the overall connection stability and connection strength of the composite board 100 after splicing.

[0042] It is understandable that horizontal Figure 1 In the left and right directions, the longitudinal direction and the transverse direction are perpendicular and both are horizontal.

[0043] Reference Figure 1 In a further embodiment of the present invention, the protruding ribs 120 are arranged in a longitudinal direction, and the upper ends of the protruding ribs 120 are connected to series steel bars 121, which connect the longitudinally arranged protruding ribs 120 in series, thereby connecting the spaced steel bars in series, so that the overall connection tightness is improved, and the structural strength of the composite plate is improved. It can be understood that the protruding ribs 120 are provided in multiple rows, and the series steel bars 121 are provided in multiple rows accordingly.

[0044] Reference Figure 1 In some embodiments of the present invention, a reinforcing rib mesh 410 is pre-buried in the cast-in-place layer 400 . The reinforcing rib mesh 410 is composed of criss-crossed steel bars to improve the structural strength of the cast-in-place layer 400 .

[0045] Reference Figure 1In a further embodiment of the present invention, the extended ribs 120 are arranged in a longitudinal arrangement, and a plurality of additional ribs 300 are arranged in a longitudinal arrangement to connect with a plurality of pairs of extended ribs 120. A pair of extended ribs 120 is provided with two and are respectively arranged on two laminated plates 100 and are arranged in an aligned manner. Increasing the number of additional ribs 300 can increase the connection positions and the connection coverage, and improve the structural strength of the laminated plates 100.

[0046] Reference Figure 1 In a further embodiment of the utility model, a through-length steel bar 310 is further included to connect a plurality of longitudinally arranged additional bars 300 in series, thereby connecting the independent additional bars 300 in series to improve the connection tightness and structural strength.

[0047] Reference Figure 2 In some embodiments of the present invention, the sealing structure is a bottom sealing plate 200, which is installed at the bottom of the composite plate 100 to seal the bottom outlet of the leakage gap 111, so that there will be no leakage during grouting.

[0048] Reference Figures 3 to 6 In a further embodiment of the utility model, the bottom sealing plate 200 is provided with an insert plate 210 inserted into the grout leakage gap 111, and the upper end of the insert plate 210 is provided with a threaded column 220 extending to the grouting splicing space 112, and a jacking nut 230 is threadedly connected to the threaded column 220, and the jacking nut 230 is against the inclined surface of the chamfer 110. By tightening the jacking nut 230, the bottom sealing plate 200 is tightened, so that the sealing effect of the bottom sealing plate 200 is better. In order to prevent the jacking nut 230 from breaking the inclined surface of the chamfer 110 and causing an irregular shape, the bottom peripheral wall of the jacking nut 230 is a conical surface, and the inclination of the conical surface is adapted to the inclined surface of the chamfer 110, so that the bottom sealing plate 200 is gradually tightened by using the conical surface.

[0049] Reference Figures 3 to 6 In a further embodiment of the present invention, a groove 140 is provided at the bottom edge of the splicing side for the insertion plate 210 to be embedded in, thereby ensuring the flatness of the bottom of the composite board 100.

[0050] In a further embodiment of the utility model, a sealing gasket 500 is attached to the upper surface of the bottom sealing plate 200, and the sealing gasket 500 is sandwiched between the top wall of the groove 140 and the bottom sealing plate 200. The sealing gasket 500 can further improve the sealing effect of the bottom of the leakage gap 111. The sealing gasket 500 can be made of rubber or silicone. The sealing gasket 500 is provided with a through hole 510 for the plug plate 210 to pass through, thereby avoiding structural interference.

[0051] It can be understood that the sealing structure can be a foam strip inserted into the leakage gap 111.

[0052] It is understandable that since the surface of the composite board is not smooth and flat, there may be some gaps when the foam strips or the bottom sealing plate 200 are sealed, which may easily cause water leakage. After the mortar is poured into the grouting joint space 112, the mortar can effectively fill and seal these tiny gaps. If the concrete is poured directly, pores are likely to appear in the grouting joint space 112, and the filling effect is not good. However, if the caulking material (mortar) is poured in first and then the concrete is poured on it, the pores in the grouting joint space 112 can be effectively avoided when pouring concrete. In addition, the mortar can use high-strength waterproof mortar, which has a better waterproof effect and avoids water leakage and seepage at the joints.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite plate splicing structure, characterized in that: include: Two laminated plates (100), each of the laminated plates (100) having at least one splicing side, the upper edge of the splicing side being provided with a chamfer (110), the splicing sides of the two laminated plates (100) being adjacent to and forming a grout leakage gap (111), and a grouting splicing space (112) located above the grout leakage gap (111) being formed at the chamfer (110) of the splicing sides of the two laminated plates (100), the grouting splicing space (112) being used to inject a caulking material, and pre-buried protruding ribs (120) extending from the upper surface of the laminated plates (100); A sealing structure for sealing the gap (111) where the slurry is leaking; Additional reinforcement (300) spans the grouting joint space (112) and is connected at both ends to the protruding reinforcements (120) of the two superimposed plates (100); The cast-in-place layer (400) is formed on the upper surface of the composite slab (100) and wraps the additional ribs (300) and the extended ribs (120).

2. The composite plate splicing structure according to claim 1, characterized in that: A bottom reinforcement net is pre-buried in the composite plate (100), the bottom of the protruding reinforcement (120) is connected to the bottom reinforcement net, the bottom reinforcement net is composed of transverse reinforcements (130) arranged transversely and longitudinal reinforcements (131) arranged longitudinally, the transverse reinforcements (130) are arranged longitudinally, and the longitudinal reinforcements (131) are connected to the transverse reinforcements (130) and arranged transversely.

3. The composite plate splicing structure according to claim 2, characterized in that: The protruding ribs (120) are arranged in a longitudinal direction, and the upper ends of the protruding ribs (120) are connected to series-connected steel bars (121), and the series-connected steel bars (121) connect the longitudinally-arranged protruding ribs (120) in series.

4. The composite plate splicing structure according to claim 1, characterized in that: A reinforcing rib mesh (410) is pre-buried in the cast-in-place layer (400).

5. The composite plate splicing structure according to claim 1, characterized in that: The protruding ribs (120) are arranged in a longitudinal direction, and a plurality of the additional ribs (300) are arranged in a longitudinal direction to be connected to a plurality of pairs of protruding ribs (120).

6. The composite plate splicing structure according to claim 5, characterized in that: It also includes a through-length steel bar (310) to connect in series a plurality of the additional bars (300) arranged longitudinally.

7. The composite plate splicing structure according to claim 1, characterized in that: The sealing structure is a bottom sealing plate (200), and the bottom sealing plate (200) is installed at the bottom of the composite plate (100) to seal the bottom outlet of the slurry leakage gap (111).

8. The composite plate splicing structure according to claim 7, characterized in that: The bottom sealing plate (200) is provided with an inserting plate (210) inserted into the grout leakage gap (111), and the upper end of the inserting plate (210) is provided with a threaded column (220) extending to the grouting splicing space (112), and a tightening nut (230) is threadedly connected to the threaded column (220), and the tightening nut (230) is against the inclined surface of the chamfer (110).

9. The composite plate splicing structure according to claim 8, characterized in that: The bottom edge of the splicing side is provided with a groove (140) for the inserting plate (210) to be embedded.

10. The composite plate splicing structure according to claim 8, characterized in that: A sealing gasket (500) is attached to the upper surface of the bottom sealing plate (200), the sealing gasket (500) is sandwiched between the top wall of the groove (140) and the bottom sealing plate (200), and the sealing gasket (500) is provided with a through hole (510) for the insertion plate (210) to pass through.

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