Anti-cracking structure for floor plate of high-rise housing

Abstract

The utility model relates to a high-rise residence floor plate anti-cracking structure which comprises a prefabricated floor slab, two prefabricated upper-layer plates are assembled on the top of the prefabricated floor slab, connecting L-shaped strips are arranged at the bottoms of the two ends of each prefabricated upper-layer plate, a pouring bin is formed between the prefabricated upper-layer plates and the prefabricated floor slab, and the pouring bin is connected with the prefabricated floor slab. A plurality of first fastening wiredrawing strips are fixed to the portion, located on the inner side of the pouring bin, of the prefabricated upper layer plate, a plurality of second fastening wiredrawing strips are fixed to the portion, located on the inner side of the pouring bin, of the prefabricated floor slab, and the first fastening wiredrawing strips and the second fastening wiredrawing strips are arranged in a spaced and crossed mode; a plurality of pouring hollow strips are arranged at the top of the prefabricated upper-layer plate; a groove body structure is further arranged between the prefabricated floor slab and the prefabricated upper layer plate, the cracking phenomenon caused by expansion of the floor plate can be avoided, and therefore the service life of the floor plate is prolonged, and the building safety is improved.

Description

Technical Field

[0001] The utility model relates to a high-rise residential floor slab crack prevention structure, belonging to the technical field of floor slabs. Background Art

[0002] With the acceleration of urbanization, the demand for high-rise residential buildings is increasing. However, the floor slabs of high-rise buildings are prone to thermal expansion and contraction due to the increase in temperature in summer, leading to cracking problems.

[0003] At present, a variety of anti-cracking structures have been proposed and applied, such as using graphene sheets as heat-conducting and heat-dissipating materials, or setting multiple curved elastic steel plates and waterproof colloids at the deformation joints of the floor, as well as ground leveling and anti-cracking structures. Although these existing technologies have solved the cracking problem to a certain extent, they still have some shortcomings;

[0004] CN209799119U discloses an anti-cracking thermal insulation floor slab, comprising a concrete floor slab layer, a thermal insulation layer, an isolation layer and a concrete surface layer, wherein the thermal insulation layer is laid on the top surface of the concrete floor slab layer, the bottom surface of the isolation layer is connected to the thermal insulation layer, and the top surface of the isolation layer is connected to the concrete surface layer; wherein the thermal insulation layer is made of materials such as graphite, and although the graphite in the prior art can quickly conduct heat, its stability and long-term durability at high temperatures still need to be improved, and although the anti-leakage building structure of the floor deformation joint can deal with the leakage problem of the deformation joint, it does not provide an effective solution for the cracking phenomenon caused by thermal expansion and contraction of the floor slab, and although the ground leveling anti-cracking structure provides a certain buffering effect, when used in high-rise buildings, its effect and applicability still need further verification and improvement;

[0005] Therefore, the utility model aims to provide an improved anti-cracking structure of the floor slab of a high-rise residential building, so as to solve a series of problems caused by thermal expansion and contraction of the floor slab. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a high-rise residential floor slab anti-cracking structure, which can avoid cracking of the floor slab due to expansion, thereby improving the service life of the floor slab and the safety of the building.

[0007] The technical solution of the utility model is as follows:

[0008] A high-rise residential floor slab crack prevention structure comprises a prefabricated floor slab, wherein two prefabricated upper slabs are assembled on the top of the prefabricated floor slab, connecting L-shaped strips are arranged at the bottom of both ends of the prefabricated upper slabs, a casting bin is formed between the prefabricated upper slabs and the prefabricated floor slabs, a plurality of first fastening wire drawing strips are fixed to the inner side of the prefabricated upper slab located at the inner side of the casting bin, a plurality of second fastening wire drawing strips are fixed to the inner side of the prefabricated floor slab located at the inner side of the casting bin, and the first fastening wire drawing strips and the second fastening wire drawing strips are arranged in an interlaced manner; a plurality of casting empty strips are arranged on the top of the prefabricated upper slab; a trough structure is also arranged between the prefabricated floor slab and the prefabricated upper slab.

[0009] Among them, the trough structure includes two fixed plates, both of which are arranged in the casting bin and are respectively fixed at the two ends of the top of the prefabricated floor slab, and the two fixed plates are respectively arranged on the opposite sides of the two connecting L-shaped strips. The top surface of the fixed plate on the side facing the prefabricated upper plate is provided with a first cutting surface, and a first gap is left between the fixed plate and the connecting L-shaped strip.

[0010] There is a spacing gap between the two prefabricated upper plates, and a plurality of first card blocks and second card blocks are fixed between the two prefabricated upper plates and on the inner side of the spacing gap, respectively, and the first card blocks and the second card blocks are arranged in an interval and cross manner.

[0011] A second cutting surface is provided between one end of the connecting L-shaped strip away from the prefabricated upper plate and the prefabricated floor slab, and a casting trough is provided at the top of the prefabricated floor slab and above the second cutting surface and the connecting L-shaped strip.

[0012] Wherein, a second gap is provided between the first card block and the second card block.

[0013] The utility model has the following beneficial effects:

[0014] The utility model increases the reserved seam in the connection structure of the prefabricated upper plate and the prefabricated floor plate by setting the splicing of the prefabricated upper plate and the prefabricated floor plate, thereby ensuring that the concrete does not expand excessively when heated and thus does not crack the floor plate. The utility model can effectively deal with the problem of thermal expansion and contraction caused by high temperature in summer, avoid cracking of the floor plate due to expansion, and thus improve the service life of the floor plate and the safety of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the prefabricated floor slab and the prefabricated upper slab in the utility model;

[0017] Figure 3 It is a schematic diagram of the structure between the casting empty strip, the casting trough and the prefabricated upper plate in the utility model;

[0018] Figure 4 It is an enlarged view of point A in the utility model.

[0019] The reference numerals in the figure are as follows:

[0020] 1. Prefabricated floor slab; 2. Prefabricated upper slab; 3. Casting bin; 4. First fastening wire drawing strip; 5. Second fastening wire drawing strip; 6. Casting empty strip; 7. Fixed plate; 8. Connecting L-shaped strip; 9. First cutting surface; 10. First gap; 11. Casting trough; 12. Second cutting surface; 13. Spacing gap; 14. First clamping block; 15. Second clamping block; 16. Second gap. DETAILED DESCRIPTION

[0021] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] See also Figures 1 to 4 , the utility model provides a technical solution:

[0023] A high-rise residential floor slab crack prevention structure includes a prefabricated floor slab 1. Two prefabricated upper slabs 2 are assembled on the top of the prefabricated floor slab 1. The prefabricated floor slab 1 and the prefabricated upper slab 2 are made of concrete and can also be woven from a plurality of steel bars. The bottoms of both ends of the prefabricated upper slab 2 are provided with connecting L-shaped strips 8. The connecting L-shaped strips 8 are L-shaped structures. When the prefabricated upper slab 2 is installed on the prefabricated floor slab 1, the prefabricated upper slab 2 can be inserted into the gap of the prefabricated floor slab 1. A casting bin 3 is formed between the prefabricated upper plate 2 and the prefabricated floor 1, and a plurality of first fastening wire drawing strips 4 and second fastening wire drawing strips 5 are fixed on the inner side of the casting bin 3 of the prefabricated upper plate 2 and the prefabricated floor 1, and the first fastening wire drawing strips 4 and the second fastening wire drawing strips 5 are arranged crosswise at intervals, so that when the prefabricated upper plate 2 is translated to the inside of the prefabricated floor 1, the first fastening wire drawing strips 4 and the second fastening wire drawing strips 5 are prevented from blocking each other and causing the prefabricated floor 1 and The merging of the prefabricated upper slab 2 is hindered, and the first fastening wire drawing strip 4 and the second fastening wire drawing strip 5 are triangles or triangular pyramids, and the triangle or triangular pyramid is a middle cavity, and the triangle or triangular pyramid is formed by splicing reinforcements on all sides. Of course, the first fastening wire drawing strip 4 and the second fastening wire drawing strip 5 can also be trapezoidal or other shapes that can increase the tension between the prefabricated floor slab 1 and the prefabricated upper slab 2, so that after pouring concrete, the tension between the prefabricated floor slab 1 and the prefabricated upper slab 2 can be increased. A plurality of casting empty strips 6 are arranged on the top of the prefabricated upper slab 2. The casting empty strips 6 have at least two functions. The first is that workers can pour concrete into the casting bin 3 through the casting empty strips 6. The second is that the prefabricated upper slab 2 can reserve a certain space through the casting empty strips 6 when it expands due to heat, so as to avoid cracking itself, such as when existing cement floors are laid, a certain gap is reserved;

[0024] When pouring the floor slab, concrete can be poured into the pouring bin 3 through the gap of the pouring empty strip 6. The first fastening wire drawing strip 4 and the second fastening wire drawing strip 5 can provide a large pulling force to the solidified concrete, thereby preventing the precast upper slab 2 and the precast floor slab 1 from separating from each other.

[0025] A trough structure is also provided between the prefabricated floor slab 1 and the prefabricated upper slab 2 , and the trough structure is used to reduce the stress between the prefabricated floor slab 1 and the prefabricated upper slab 2 .

[0026] See attached Figure 2The trough structure includes two fixing plates 7, and the two fixing plates 7 are arranged on the inner side of the casting bin 3 and fixed at the two ends of the top of the precast floor 1, respectively. A first cutting surface 9 is arranged between the fixing plate 7 and the precast upper plate 2, and a first gap 10 is arranged between the fixing plate 7 and the connecting L-shaped strip 8. When pouring concrete, the concrete can overflow to the first cutting surface 9, and the concrete at the first cutting surface 9 flows into the first gap 10, so that the space between the precast upper plate 2 and the precast floor 1 is filled with concrete, thereby increasing the connection force between the precast floor 1 and the precast upper plate 2;

[0027] A second cutting surface 12 is arranged between the end of the connecting L-shaped strip 8 away from the prefabricated upper plate 2 and the prefabricated floor 1. Through the arrangement of the second cutting surface 12, a casting trough 11 is arranged on the top of the prefabricated floor 1 and above the second cutting surface 12 and the connecting L-shaped strip 8. Through the arrangement of the casting trough 11, when pouring concrete, the second cutting surface 12 is poured through the casting trough 11, so that there is a filler between the connecting L-shaped strip 8 and the second cutting surface 12; through the arrangement of the connecting gap, the connecting L-shaped strip 8 will not excessively interfere with the prefabricated floor 1 and cause cracks in the prefabricated upper plate 2 or the prefabricated floor 1.

[0028] See attached Figure 3 and attached Figure 4 A spacing gap 13 is provided between the two prefabricated upper panels 2. Through the provision of the spacing gap 13, a certain gap is left between the two prefabricated upper panels 2 for thermal expansion and contraction. A plurality of first clamping blocks 14 and second clamping blocks 15 are respectively fixed between the two prefabricated upper panels 2 and on the inner side of the spacing gap 13. Through the provision of the first clamping blocks 14 and the second clamping blocks 15, the first clamping blocks 14 and the second clamping blocks 15 can expand when heated, thereby clamping the prefabricated upper panels 2. In winter, when the weather is cold, the first clamping blocks 14 and the second clamping blocks 15 can be used to clamp the prefabricated upper panels 2. The arrangement between the first and second blocks 14 and 15 limits the range of left and right movement of the two prefabricated upper plates 2, and after pouring concrete, a certain filler is provided between the first block 14 and the second block 15, and the first block 14 and the second block 15 are arranged in an interval and cross-arranged manner, and a second gap 16 is provided between the first block 14 and the second block 15. Through the arrangement of the second gap 16, the second gap 16 can further add filler between the first block 14 and the second block 15, and when heated, a gap is provided for the principle of thermal expansion and contraction to avoid cracking;

[0029] After the concrete is poured, reserved joints are divided by tools such as partitions, thereby ensuring that the concrete does not expand excessively when heated and cause cracks in the floor slab. After the concrete solidifies, the tools can be removed.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-rise residential floor slab crack prevention structure, comprising a prefabricated floor slab (1), characterized in that: The top of the prefabricated floor slab (1) is equipped with two prefabricated upper slabs (2), and the bottoms of both ends of the prefabricated upper slabs (2) are provided with connecting L-shaped strips (8). A casting bin (3) is formed between the prefabricated upper slab (2) and the prefabricated floor slab (1). The prefabricated upper slab (2) is located on the inner side of the casting bin (3) and is fixed with a plurality of first fastening wire drawing strips (4). The prefabricated floor slab (1) is located on the inner side of the casting bin (3) and is fixed with a plurality of second fastening wire drawing strips (5). The first fastening wire drawing strips (4) and the second fastening wire drawing strips (5) are arranged in a cross-arranged manner at intervals; a plurality of casting empty strips (6) are arranged on the top of the prefabricated upper slab (2); and a trough structure is also arranged between the prefabricated floor slab (1) and the prefabricated upper slab (2).

2. A high-rise residential floor slab crack prevention structure as claimed in claim 1, characterized in that: The trough structure comprises two fixing plates (7), both fixing plates (7) are arranged in the casting bin (3) and are respectively fixed at two ends of the top of the prefabricated floor slab (1), the two fixing plates (7) are respectively arranged on the opposite sides of two connecting L-shaped strips (8), the top surface of the fixing plate (7) on the side facing the prefabricated upper slab (2) is provided with a first cut surface (9), and a first gap (10) is left between the fixing plate (7) and the connecting L-shaped strip (8).

3. The anti-cracking structure of the floor slab of a high-rise residential building as claimed in claim 1, characterized in that: A spacing gap (13) is provided between the two prefabricated upper plates (2), and a plurality of first card blocks (14) and second card blocks (15) are respectively fixed between the two prefabricated upper plates (2) and on the inner side of the spacing gap (13), and the first card blocks (14) and the second card blocks (15) are arranged in a spaced and cross manner.

4. The anti-cracking structure of the floor slab of a high-rise residential building as claimed in claim 1, characterized in that: A second cut surface (12) is provided between one end of the connecting L-shaped strip (8) away from the prefabricated upper slab (2) and the prefabricated floor slab (1), and a casting trough (11) is provided at the top of the prefabricated floor slab (1) and above the second cut surface (12) and the connecting L-shaped strip (8).

5. The anti-cracking structure of the floor slab of a high-rise residential building as claimed in claim 3, characterized in that: A second gap (16) is provided between the first clamping block (14) and the second clamping block (15).

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