Anti-cracking laminated slab structure

Abstract

The utility model discloses an anti-cracking laminated slab structure, and relates to the technical field of laminated slabs. Comprising a lower concrete overlapping layer, a connecting mechanism and an upper concrete overlapping layer are installed on the top of the lower concrete overlapping layer, the upper concrete overlapping layer and the lower concrete overlapping layer are connected through the connecting mechanism, and a plurality of evenly-distributed pouring holes are formed in the top of the upper concrete overlapping layer; concrete is poured on the upper concrete overlapping layer through the pouring holes. Concrete is poured between the upper concrete laminated layer and the lower concrete laminated layer through the pouring holes, when the concrete is solidified, the arc-shaped faces at the two ends of the first-class transverse steel bars and the arc-shaped faces at the two ends of the second-class transverse steel bars are bonded through the concrete, and the laminated slab is prevented from cracking; the upper concrete laminated layer and the lower concrete laminated layer can be connected through the first-class longitudinal steel bars, the supporting steel bars, the second-class longitudinal steel bars and the pulling steel bars, and the upper concrete laminated layer and the lower concrete laminated layer are prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of laminated boards, in particular to an anti-cracking laminated board structure. Background Art

[0002] Precast concrete panels are a commonly used material in modern construction. The frame is built with precast panels, and then the cast-in-place slab is poured on the frame. This can save construction time and shorten the construction period.

[0003] The anti-cracking composite plate structure with announcement number CN219175607U has the following defects during use:

[0004] In the prior art, the width and length of the prefabricated panels are fixed, so in actual construction, splicing is often required. After splicing, the cast-in-place slab layer is cast. After a period of time in the later construction, the splicing between the two prefabricated panels often causes cracks due to the stress on the two prefabricated panels, causing structural damage to the building. In the prior art, the connection strength between the two prefabricated panels is increased by drilling holes in the two prefabricated panels during the cast-in-place slab construction, and then pulling the steel bars together in an inverted U shape. However, this can easily lead to the two prefabricated panels cracking (when drilling). If reserved holes are used, it may also cause uneven stress on the two prefabricated panels in the later stage, exerting unbalanced forces on the holes, and eventually causing the holes to crack. Therefore, there is an urgent need for an anti-cracking composite panel structure. Utility Model Content

[0005] The utility model aims to provide an anti-cracking composite board structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-cracking composite board structure, comprising a lower concrete composite layer, a connecting mechanism and an upper concrete composite layer are installed on the top of the lower concrete composite layer, the upper concrete composite layer and the lower concrete composite layer are connected by the connecting mechanism, a plurality of evenly distributed casting holes are opened on the top of the upper concrete composite layer, concrete is cast in the upper concrete composite layer through the casting holes, and the concrete is filled between the upper concrete composite layer and the lower concrete composite layer.

[0007] Preferably, the connecting mechanism includes a first type of transverse steel bars and a second type of transverse steel bars, two groups of the first type of transverse steel bars are provided and are symmetrically installed at both ends between the upper concrete superposition layer and the lower concrete superposition layer, and multiple groups of the second type of transverse steel bars are provided and are installed in the middle part between the upper concrete superposition layer and the lower concrete superposition layer, and each group of the second type of transverse steel bars and the first type of transverse steel bars is composed of multiple types of the second type of transverse steel bars and the first type of transverse steel bars.

[0008] Preferably, the two ends of the opposite surfaces of the outer wall of the second type of transverse reinforcement are arc-shaped surfaces, and the end of the outer wall of the first type of transverse reinforcement facing the second type of transverse reinforcement is the same type of arc-shaped surface.

[0009] Preferably, two inner second-class transverse steel bars and a first-class transverse steel bar of the same group are fixedly connected at the bottom with a second-class longitudinal steel bar, and two outer second-class transverse steel bars and a first-class transverse steel bar of the same group are fixedly connected at the bottom with a first-class longitudinal steel bar, the bottom of the first-class longitudinal steel bar is fixed to the top of the lower concrete superposition layer, and the second-class transverse steel bars and the first-class transverse steel bar are in a horizontally placed semi-I shape.

[0010] Preferably, a tie-reinforcement bar is fixedly connected between two connected second-type transverse steel bars and a first-type transverse steel bar in the same group, the tie-reinforcement bar is in a rectangular shape, and the tie-reinforcement bar and the second-type transverse steel bars are distributed in parallel.

[0011] Preferably, the tops of the two connected Class II transverse steel bars and Class I transverse steel bars in the same group are respectively fixedly connected with supporting steel bars, the tops of the supporting steel bars pass through the casting holes and are exposed to the outside, and the supporting steel bars are in an inverted "V" shape.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The anti-cracking composite slab structure pours concrete between the upper concrete composite layer and the lower concrete composite layer through the pouring holes. When the concrete solidifies, the arc surfaces at both ends of the first-class transverse steel bars and the second-class transverse steel bars are bonded by the concrete to prevent the composite slab from cracking. The upper concrete composite layer and the lower concrete composite layer can be connected by the first-class longitudinal steel bars, the supporting steel bars, the second-class longitudinal steel bars and the tensioning steel bars to prevent the upper concrete composite layer and the lower concrete composite layer from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the anti-cracking composite plate structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the axial side of the anti-cracking composite plate structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the anti-cracking composite plate structural connection mechanism of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the cross section of the anti-cracking composite board of the utility model.

[0018] In the figure: 1. Upper concrete superposition layer; 2. Lower concrete superposition layer; 3. Connection mechanism; 301. Class I transverse reinforcement; 302. Class II transverse reinforcement; 303. Class I longitudinal reinforcement; 304. Support reinforcement; 305. Class II longitudinal reinforcement; 306. Pulling reinforcement; 4. Casting hole. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] Precast concrete panels are a material commonly used in modern buildings. The frame is built with precast panels, and then the cast-in-place slab layer is poured on the frame. This can save construction time and shorten the construction period. When the previous composite panels are spliced ​​and decorated, the splicing structure cannot keep them tightly connected for a long time. Therefore, when the two composite panels are used for too long, cracks are prone to appear at the splicing, thus affecting the overall aesthetics. The present application pours concrete between the upper concrete composite layer and the lower concrete composite layer through pouring holes. When the concrete solidifies, the arc-shaped surfaces at both ends of the first and second horizontal steel bars are bonded by concrete to avoid cracking of the composite panel. The upper concrete composite layer and the lower concrete composite layer can be connected by the first and second longitudinal steel bars, the supporting steel bars, the second longitudinal steel bars and the tensioning steel bars to avoid fractures of the upper and lower concrete composite layers.

[0021] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: an anti-cracking composite board structure, including a lower concrete composite layer 2, a connecting mechanism 3 and an upper concrete composite layer 1 are installed on the top of the lower concrete composite layer 2, the upper concrete composite layer 1 and the lower concrete composite layer 2 are connected by the connecting mechanism 3, a plurality of evenly distributed casting holes 4 are opened on the top of the upper concrete composite layer 1, concrete is cast in the upper concrete composite layer 1 through the casting holes 4, and the concrete is filled between the upper concrete composite layer 1 and the lower concrete composite layer 2.

[0022] The connecting mechanism 3 includes a first type of transverse steel bars 301 and a second type of transverse steel bars 302. Two groups of the first type of transverse steel bars 301 are provided and are symmetrically installed at the two ends between the upper concrete superposition layer 1 and the lower concrete superposition layer 2. Multiple groups of the second type of transverse steel bars 302 are provided and are installed in the middle part between the upper concrete superposition layer 1 and the lower concrete superposition layer 2. Each group of the second type of transverse steel bars 302 and the first type of transverse steel bars 301 is composed of multiple same type of second type of transverse steel bars 302 and first type of transverse steel bars 301.

[0023] The two ends of the opposite surfaces of the outer wall of the second type of transverse reinforcement 302 are arc-shaped surfaces, and the end of the outer wall of the first type of transverse reinforcement 301 facing the second type of transverse reinforcement 302 is the same type of arc-shaped surface.

[0024] A second type of longitudinal reinforcement 305 is fixedly connected at the bottom between the two inner second type of transverse reinforcements 302 and the first type of transverse reinforcement 301 of the same group, and a first type of longitudinal reinforcement 303 is fixedly connected at the bottom between the two outer second type of transverse reinforcements 302 and the first type of transverse reinforcement 301 of the same group. The bottom of the first type of longitudinal reinforcement 303 is fixed to the top of the lower concrete superposition layer 2, and the second type of transverse reinforcement 302 and the first type of transverse reinforcement 301 are in a horizontally placed semi-I shape.

[0025] A tie-reinforcement steel bar 306 is fixedly connected between two connected second-class transverse reinforcements 302 and a first-class transverse reinforcement 301 in the same group. The tie-reinforcement steel bar 306 is in a rectangular shape, and the tie-reinforcement steel bar 306 and the second-class transverse reinforcement 302 are distributed in parallel.

[0026] The tops of the two connected Class II transverse reinforcements 302 and Class I transverse reinforcements 301 of the same group are respectively fixedly connected with support reinforcements 304, and the tops of the support reinforcements 304 pass through the casting holes 4 and are exposed to the outside, and the support reinforcements 304 are in an inverted "V" shape.

[0027] Concrete is poured between the upper concrete superposition layer 1 and the lower concrete superposition layer 2 through the pouring hole 4. When the concrete solidifies, the arc-shaped surfaces at both ends of the first-class transverse steel bars 301 and the second-class transverse steel bars 302 are bonded by concrete to prevent the superposition plate from cracking. The upper concrete superposition layer 1 and the lower concrete superposition layer 2 can be connected by the first-class longitudinal steel bars 303, the supporting steel bars 304, the second-class longitudinal steel bars 305 and the tensioning steel bars 306 to prevent the upper concrete superposition layer 1 and the lower concrete superposition layer 2 from breaking.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A crack-resistant laminated slab structure, comprising a lower concrete laminated layer (2), characterized in that: A connecting mechanism (3) and an upper concrete stacking layer (1) are installed on the top of the lower concrete stacking layer (2); the upper concrete stacking layer (1) and the lower concrete stacking layer (2) are connected via the connecting mechanism (3); a plurality of evenly distributed casting holes (4) are opened on the top of the upper concrete stacking layer (1); concrete is cast into the upper concrete stacking layer (1) through the casting holes (4); and the concrete is filled between the upper concrete stacking layer (1) and the lower concrete stacking layer (2).

2. The anti-cracking composite plate structure according to claim 1, characterized in that: The connection mechanism (3) comprises a first type of transverse steel bars (301) and a second type of transverse steel bars (302), wherein two groups of the first type of transverse steel bars (301) are provided and are symmetrically installed at the two ends between the upper concrete laminate layer (1) and the lower concrete laminate layer (2), and multiple groups of the second type of transverse steel bars (302) are provided and are installed in the middle between the upper concrete laminate layer (1) and the lower concrete laminate layer (2), and each group of the second type of transverse steel bars (302) and the first type of transverse steel bars (301) is composed of multiple same type of second type of transverse steel bars (302) and first type of transverse steel bars (301).

3. The anti-cracking composite plate structure according to claim 2, characterized in that: The two ends of the opposite surfaces of the outer wall of the second type of transverse reinforcement (302) are arc-shaped surfaces, and the end of the outer wall of the first type of transverse reinforcement (301) facing the second type of transverse reinforcement (302) is the same type of arc-shaped surface.

4. The anti-cracking composite plate structure according to claim 1, characterized in that: A second type of longitudinal steel bar (305) is fixedly connected at the bottom between two internal second type of transverse steel bars (302) and a first type of transverse steel bar (301) of the same group, and a first type of longitudinal steel bar (303) is fixedly connected at the bottom between two external second type of transverse steel bars (302) and a first type of transverse steel bar (301) of the same group, the bottom of the first type of longitudinal steel bar (303) is fixed to the top of the lower concrete superimposed layer (2), and the second type of transverse steel bars (302) and the first type of transverse steel bars (301) are in a horizontally placed semi-I shape.

5. The anti-cracking composite plate structure according to claim 1, characterized in that: A tie-joint steel bar (306) is fixedly connected between two connected second-class transverse steel bars (302) and a first-class transverse steel bar (301) in the same group. The tie-joint steel bar (306) is in a rectangular shape. The tie-joint steel bar (306) and the second-class transverse steel bars (302) are distributed in parallel.

6. The anti-cracking composite plate structure according to claim 1, characterized in that: The tops of the two connected second-class transverse steel bars (302) and the first-class transverse steel bars (301) of the same group are respectively fixedly connected with support steel bars (304), the tops of the support steel bars (304) pass through the casting holes (4) and are exposed to the outside, and the support steel bars (304) are in an inverted "V" shape.

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