Splicing type floor structure

Abstract

The utility model provides a spliced floor structure, which belongs to the field of floor splicing and is used for solving the problems that the height of the floor structure is too high due to the fact that a floor is arranged on the upper end face of a beam, the indoor clear height is compressed, and the space is wasted due to the fact that the bottom face of the beam protrudes to form a special-shaped space. The spliced floor structure comprises a plurality of I-shaped beams, and lower floor slabs are located between upper wing plates and lower wing plates of the I-shaped beams and spliced in sequence. The upper floor slabs are arranged on the upper end surfaces of the I-shaped beam upper wing plates and are spliced in sequence; a positioning bulge and a positioning groove are respectively arranged at the joint of the upper floor and the lower floor; the prestressed steel cable channel penetrates through the side wall of the lower floor, the positioning bulge and the positioning groove; the prestressed steel cables penetrate through the prestressed steel cable channels and are respectively fixed on the lower floor slabs at the head part and the tail part; through layered splicing of the upper-layer floor slab and the lower-layer floor slab with the I-shaped beams and combination of the prestressed steel cables, the structural stability is enhanced, the overall height of a floor is reduced, the indoor clear height is increased, meanwhile, space waste caused by beam body protrusion is eliminated, and the horizontal space utilization rate is optimized.

Description

Technical Field

[0001] This utility model belongs to the field of floor splicing, and in particular relates to a splicing floor structure. Background Technology

[0002] In modern building systems, mezzanine floors are widely used in residential, commercial, and industrial settings. A mezzanine floor refers to adding a load-bearing system between the original two floors of a building, using floor slabs to create additional usable space, allowing for flexible interior space modifications without altering the building's appearance.

[0003] Utility model patent CN211369212U discloses a mezzanine floor slab, comprising a steel beam, a transverse steel plate resisting overlapping, cylindrical welded studs, a cross-shaped fixing joint, and a lightweight high-strength concrete casting. The transverse steel plate resisting overlapping is disposed on the steel beam, and the cylindrical welded studs penetrate the transverse steel plate resisting overlapping. The lightweight high-strength concrete casting is poured onto the transverse steel plate resisting overlapping. This mezzanine floor slab is formed by placing the transverse steel plate resisting overlapping on the upper surface of the beam, and then pouring lightweight high-strength concrete onto the transverse steel plate resisting overlapping, thus forming a mezzanine floor structure. When the floor slab is placed on the upper surface of the beam, the height of this floor structure is the sum of the beam height and the floor slab thickness. The excessive height of the floor structure leads to a compression of the usable net height inside the room. Furthermore, since the I-beams are arranged below the floor slab, irregularly shaped idle spaces are formed between adjacent I-beams, further resulting in wasted space.

[0004] In summary, the shortcomings of the existing floor structure are: the floor slab is placed on the upper surface of the beam, resulting in a high floor structure height that compresses the interior clear height; and the bottom surface of the beam protrudes below the floor slab, creating irregular spaces that lead to a waste of horizontal space. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a spliced ​​floor structure that combines layered floor slabs and steel beams to solve the problem that placing the floor slabs on the upper surface of the beams will result in a high floor structure height and reduce the waste of space at the lower end of the floor structure.

[0006] To achieve the above and other related objectives, this utility model provides a modular floor structure, which includes:

[0007] Several I-beams are arranged sequentially along the length direction perpendicular to the I-beams, and the area between two adjacent I-beams is the floor slab placement area.

[0008] Several lower floor slabs are located between the lower flange and the upper flange of the I-beam, and between two adjacent I-beams. The several lower floor slabs are sequentially spliced ​​along the length of the I-beam and fill the lower part of the floor slab placement area.

[0009] Several upper floor slabs are located on the upper end surface of the upper flange of the I-beam, and the several upper floor slabs are spliced ​​together in sequence to fill the upper part of the floor slab placement area;

[0010] The positioning unit includes a plurality of positioning protrusions and a plurality of positioning grooves; the plurality of positioning protrusions and the plurality of positioning grooves are respectively disposed at the junction between the upper floor slab and the lower floor slab, and the plurality of positioning protrusions are inserted into the plurality of positioning grooves;

[0011] A prestressed steel cable channel, which penetrates several opposite sidewalls of the lower floor slabs and passes through positioning protrusions and positioning grooves, with the axis of the prestressed steel cable channel parallel to the length direction of the I-beam;

[0012] A prestressed steel cable passes through a prestressed steel cable channel, and its two ends are fixed to the first lower floor slab and the last lower floor slab, respectively.

[0013] As an optional solution, the lower floor slab includes a bottom precast slab, a corrugated steel plate, and a concrete layer;

[0014] The corrugated steel plate is laid on the upper surface of the bottom precast slab; the concrete layer is poured on the upper surface of the corrugated steel plate.

[0015] The positioning groove is located on the upper surface of the concrete layer.

[0016] Alternatively, the positioning protrusion is provided on the lower end face of the upper floor slab;

[0017] The prestressed steel cable channel includes several first channels and several second channels. The first channels penetrate the opposite sidewalls of the concrete layer and connect to the positioning grooves. The axis of the first channel is parallel to the length direction of the I-beam. The several first channels correspond one-to-one with the several positioning grooves. The several second channels penetrate the opposite sidewalls of the several positioning protrusions. The several second channels correspond one-to-one with the several positioning protrusions. The axis of the second channel is parallel to the axis of the first channel.

[0018] When the positioning protrusion is inserted into the positioning groove, several first channels and several second channels are connected to form a prestressed steel cable channel.

[0019] The prestressed steel cable passes through the prestressed steel cable channel, and both ends of the prestressed steel cable are fixed to the concrete layer of the first lower floor slab and the concrete layer of the last lower floor slab, respectively.

[0020] As an optional solution, the positioning protrusion and the positioning groove are conical; the end of the conical positioning protrusion away from the upper floor slab is the upper end face, and the area of ​​the upper end face of the positioning protrusion is smaller than the area of ​​the lower end face of the positioning protrusion.

[0021] As an optional solution, a vibration-damping cavity is formed between the corrugated steel plate and the upper surface of the bottom precast slab.

[0022] As an optional solution, the vibration-damping cavity is filled with sound-insulating cotton.

[0023] As an optional solution, several of the upper floor slabs are spliced ​​sequentially along the splicing direction perpendicular to the lower floor slabs.

[0024] As an optional solution, the upper floor slab also includes an I-beam positioning groove;

[0025] The I-beam positioning groove is set on the lower end surface of the upper floor slab, and the upper flange of the I-beam is inserted into the I-beam positioning groove.

[0026] As an optional feature, the floor structure also includes waterproof membrane;

[0027] The waterproof membrane is filled in the gap area between the I-beam and the lower and upper floor slabs.

[0028] As described above, the modular floor structure of this utility model has at least the following beneficial effects:

[0029] 1. This application solves the problems of placing the floor slab on the upper surface of the beam, creating a high floor height that compresses the interior clear height, and the beam bottom protruding below the floor slab, resulting in a waste of horizontal space. This is achieved by setting up an I-beam, an upper floor slab, a lower floor slab, a positioning protrusion, and a positioning groove. The lower floor slab is located on the upper surface of the beam to fill the distance between the upper and lower flanges of the adjacent I-beams. The upper floor slab cooperates with the lower floor slab through the positioning protrusion and positioning groove to fill the upper part of the floor slab placement area.

[0030] 2. This application, by setting up a prestressed steel cable channel and prestressed steel cables, with the prestressed steel cables passing through the prestressed steel cable channel through the opposite sidewalls, positioning protrusions and positioning grooves of the lower floor slab, not only connects and fixes the upper and lower floor slabs through the prestressed steel cables, but also connects several lower floor slabs spliced ​​sequentially along the length of the I-beam into a whole and provides prestress to the floor structure to prevent the floor slab from bending and deforming.

[0031] 3. This application incorporates an I-beam positioning groove, which allows the upper floor slab to engage with the upper flange of the I-beam through the positioning groove. This effectively restricts the displacement of the upper floor slab along its splicing direction. Furthermore, since the splicing directions of the upper and lower floor slabs are perpendicular to each other, when the upper and lower floor slabs engage through the positioning protrusion and positioning groove, the upper floor slab restricts the displacement of the lower floor slab along its splicing direction, thereby increasing the overall stability of the floor structure. Attached Figure Description

[0032] Figure 1 The diagram shown is a three-dimensional upper structure of the spliced ​​floor structure of this utility model.

[0033] Figure 2 The diagram shown is a three-dimensional representation of the lower part of the spliced ​​floor structure of this utility model.

[0034] Figure 3 The diagram shown is a cross-sectional view of the spliced ​​floor structure of this utility model.

[0035] Figure 4 The diagram shown is a three-dimensional structural schematic of the upper floor slab of this utility model.

[0036] Figure 5 The diagram shown is an explosion diagram of the lower floor slab and sound insulation cotton of this utility model;

[0037] Figure 6 The diagram shown is a three-dimensional structural schematic of the corrugated steel plate of this utility model.

[0038] Figure 7 The diagram shown is an exploded view of the spliced ​​floor structure of this utility model.

[0039] Figure 8 The diagram shown is an exploded view of the spliced ​​floor structure with secondary beams according to this utility model.

[0040] Figure 9 The diagram shown is a three-dimensional representation of the lower part of the spliced ​​floor structure with secondary beams according to this utility model.

[0041] Figure 10 Displayed as Figure 3 Enlarged view of point A in the middle;

[0042] In the diagram: 1. I-beam; 2. Lower floor slab; 3. Upper floor slab; 4. Positioning unit; 5. Prestressed steel cable channel; 6. Prestressed steel cable; 7. Vibration damping cavity; 8. Sound insulation cotton; 9. Waterproof membrane; 10. Secondary beam;

[0043] 201. Precast base slab; 202. Corrugated steel plate; 203. Concrete layer;

[0044] 301. I-beam positioning groove; 302. Secondary beam positioning groove;

[0045] 401. Positioning protrusion; 402. Positioning groove;

[0046] 501. First channel; 502. Second channel. Detailed Implementation

[0047] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0048] Please see Figures 1 to 10 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0049] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0050] In this embodiment, please refer to Figure 1-10 This utility model provides a modular floor structure, characterized in that the floor structure includes:

[0051] Several I-beams 1 are arranged sequentially along the length direction perpendicular to the I-beams 1, and the area between two adjacent I-beams 1 is the floor slab placement area.

[0052] Several lower floor slabs 2 are located between the lower flange and the upper flange of the I-beam 1. The lower floor slabs 2 are located between two adjacent I-beams 1. Several lower floor slabs 2 are spliced ​​together along the length of the I-beam 1 and fill the lower part of the floor slab placement area.

[0053] Here, the I-beam 1 can be connected to the wall by angle steel, or it can be installed in the building space by splicing columns and beams;

[0054] In this embodiment, four I-beams 1 are arranged sequentially along the length direction perpendicular to the I-beams 1, and two lower floor slabs 2 are spliced ​​between two adjacent I-beams 1.

[0055] Here, the height of the lower floor slab 2 is less than the height of the web of the I-beam 1. The lower floor slab 2 can be placed between the lower flange and the upper flange of the I-beam 1 and slidably spliced ​​along the length of the I-beam 1.

[0056] A plurality of upper floor slabs 3 are located on the upper end surface of the upper flange of the I-beam 1. The plurality of upper floor slabs 3 are spliced ​​together in sequence and fill the upper part of the floor slab placement area. The plurality of upper floor slabs 3 are spliced ​​together in sequence along the splicing direction perpendicular to the lower floor slab 2.

[0057] Positioning unit 4 includes a plurality of positioning protrusions 401 and a plurality of positioning grooves 402; the plurality of positioning protrusions 401 and the plurality of positioning grooves 402 are respectively disposed at the junction between the upper floor slab 3 and the lower floor slab 2, and the plurality of positioning protrusions 401 are inserted into the plurality of positioning grooves 402.

[0058] The lower floor slab 2 includes a bottom precast slab 201, a corrugated steel plate 202, and a concrete layer 203;

[0059] The corrugated steel plate 202 is laid on the upper surface of the bottom precast slab 201; the concrete layer 203 is poured on the upper surface of the corrugated steel plate 202; the positioning groove 402 is provided on the upper end face of the concrete layer 203.

[0060] The positioning protrusion 401 is provided on the lower end face of the upper floor slab 3;

[0061] Here, for reference Figure 7 In this embodiment, taking two positioning grooves 402 as an example, each of the concrete layers 203 of the lower floor slab 2 is provided with two positioning grooves 402, and the number of upper floor slabs 3 is four. The upper floor slabs 3 are arranged sequentially along the splicing direction perpendicular to the lower floor slabs 2. The two upper floor slabs 3 in the middle are respectively provided with four positioning protrusions 401. The four positioning protrusions 401 of the upper floor slabs 3 in the middle are respectively inserted into the four positioning grooves closest to the middle I-beam 1. Therefore, the upper floor slabs 3 in the middle will cooperate with the four lower floor slabs 2 closest to the middle I-beam 1. The two upper floor slabs 3 at the edge are respectively provided with two positioning protrusions 401. The two positioning protrusions 401 of the upper floor slabs 3 at the edge are respectively inserted into the two positioning grooves closest to the I-beam 1 at the edge. Therefore, the upper floor slabs 3 at the edge cooperate with the lower floor slabs 2 near the outer side of the I-beam 1.

[0062] With this setup, since the splicing directions of the upper floor slab 3 and the lower floor slab 2 are perpendicular to each other, when the upper floor slab 3 and the lower floor slab 2 are engaged by the positioning protrusion 401 and the positioning groove 402, the upper floor slab 3 simultaneously restricts the displacement of several lower floor slabs 2 through the positioning protrusion 401, thereby increasing the overall stability of the floor structure.

[0063] Here, the corrugated steel plate 202 has several top plates and several bottom plates arranged alternately along the length of the I-beam 1, and there is a horizontal height difference between the top plates and the bottom plates; the top plates and the bottom plates are connected to each other by connecting plates to form a continuous sinusoidal wave shape, so that the corrugated steel plate 202 forms a wave-shaped structure.

[0064] Here, for reference Figure 10 The bottom precast slab 201 is provided with overlapping protrusions, and the corrugated steel plate 202 is placed on the overlapping protrusions and connected to the bottom precast slab 201 with screws, thereby detaching the corrugated steel plate 202 from contact with the bottom precast slab.

[0065] Here, after the bottom precast slab 201 is connected to the corrugated steel plate 202, a concrete layer 203 is poured on the corrugated steel plate 202 to form the lower floor slab 2. The top and bottom slabs are provided with additional protrusions. The protrusions on the top and bottom slabs can make the connection between the concrete layer 203 and the corrugated steel plate 202 more secure. When the corrugated steel plate 202 is connected to the bottom precast slab 201 by screws, the screws penetrate the bottom slab and the ends of the screws are located in the pouring area of ​​the concrete layer 203, thus forming additional screw protrusions to further increase the connection between the concrete layer 203 and the corrugated steel plate 202.

[0066] With this design, the corrugated steel plate 202 with its wave-like structure can better bear the weight of objects in the upper space of the floor and is not easily deformed, thus ensuring the structural strength and stability of the mezzanine floor structure.

[0067] The prestressed steel cable channel 5 passes through several opposite side walls of the lower floor slabs 2 and through the positioning protrusions 401 and positioning grooves 402. The axis of the prestressed steel cable channel 5 is parallel to the length direction of the I-beam 1.

[0068] The prestressed steel cable channel 5 includes a plurality of first channels 501 and a plurality of second channels 502. The first channels 501 penetrate the opposite sidewalls of the concrete layer 203 and connect to the positioning grooves 402. The axis of the first channels 501 is parallel to the length direction of the I-beam 1. The plurality of first channels 501 correspond one-to-one with the plurality of positioning grooves 402. The plurality of second channels 502 penetrate the opposite sidewalls of the plurality of positioning protrusions 401. The plurality of second channels 502 correspond one-to-one with the plurality of positioning protrusions 401. The axis of the second channels 502 is parallel to the axis of the first channels 501.

[0069] When the positioning protrusion 401 is inserted into the positioning groove 402, a plurality of the first channels 501 and a plurality of the second channels 502 are connected to form a prestressed steel cable channel 5.

[0070] The prestressed steel cable 6 passes through the prestressed steel cable channel 5 and its two ends are respectively fixed on the concrete layer 203 of the first lower floor slab 2 and the concrete layer 203 of the last lower floor slab 2.

[0071] Here, in this embodiment, the first channel 501 includes two sub-channels: the two ends of the first sub-channel are respectively connected to one side wall of the concrete layer 203 and the corresponding side wall of the positioning groove 402; the two ends of the second sub-channel are respectively connected to the other opposite side wall of the concrete layer 203 and the other opposite side wall of the positioning groove 402.

[0072] Here, one end of the prestressed steel cable 6 can also pass through the wall in a direction perpendicular to the length of the I-beam 1 and be anchored to the other side of the wall. At this time, one end of several I-beams 1 is close to the wall, and the lower floor slab 2 can be placed between the upper and lower flanges of the other end of several I-beams 1 in sequence. The other end of the prestressed steel cable 6 is then anchored to the last lower floor slab 2, so that the lower floor slab 2 and the wall form an integral whole, which not only restricts the displacement of the lower floor slab 2 but also increases the integrity and stability of the floor structure.

[0073] Here, after the two ends of the prestressed steel cable 6 are fixed, concrete is poured into the prestressed steel cable channel 5. When the concrete solidifies, the positioning protrusion 401 and the positioning groove 402 are fixed to each other because the first channel 501 and the second channel 502 are connected and there is solidified concrete inside them.

[0074] This setup not only connects and fixes the upper floor slab 3 and the lower floor slab 2 through the prestressed steel cable 6, but also connects several lower floor slabs 2 that are spliced ​​sequentially along the length of the I-beam 1 into a whole and provides prestress to the floor structure to prevent the floor slabs from bending and deforming.

[0075] Here, for reference Figure 8 and Figure 9A secondary beam 10 perpendicular to the length of the I-beam 1 can be set between adjacent I-beams 1. At this time, a lower floor slab 2 can be inserted between the upper and lower flanges at both ends of the I-beam 1. Several lower floor slabs 2 can be placed on both sides of the secondary beam 10. The prestressed steel cable channel 5 passes through the web of the secondary beam 10. When the prestressed steel cable 6 passes through the prestressed steel cable channel 5 and is fixed on the first and last lower floor slabs 2, the secondary beam 10 and the lower floor slab 2 form an integral whole, which increases the integrity of the floor structure and fixes the lower floor slab 2 to reduce its displacement.

[0076] With this setup, the lower floor slab 2 is positioned on the upper surface of the lower flange of the I-beam 1, reducing the irregular space where the bottom of the beam protrudes below the floor slab, thus solving the problem of wasted space. The upper floor slab 3 cooperates with the lower floor slab 2 through the positioning protrusion 401 and positioning groove 402 and fills the upper part of the floor slab placement area, thereby solving the problem of the floor slab being placed on the upper surface of the beam, forming a higher floor structure height and compressing the interior net height.

[0077] In this embodiment, please refer to Figure 4 and Figure 5 The positioning protrusion 401 and the positioning groove 402 are conical; the protruding end of the conical positioning protrusion 401 is the upper end face, and the area of ​​the upper end face of the positioning protrusion 401 is smaller than the area of ​​the lower end face of the positioning protrusion 401.

[0078] With this setting, the tapered positioning protrusion 401 inserted into the tapered positioning groove 402 will make the contact area between the upper floor slab 3 and the lower floor slab 2 larger and the stress distribution more uniform. The tapered positioning protrusion 401 and the positioning groove 402 are interference fit.

[0079] With this setup, the conical positioning protrusion 401 and the conical positioning groove 402 will reduce the impact of installation errors, and the guiding effect of the conical slope will also improve the assembly efficiency between the upper floor slab 3 and the lower floor slab 2.

[0080] In this embodiment, please refer to Figure 5 A vibration-damping cavity 7 is formed between the corrugated steel plate 202 and the upper end face of the bottom precast slab 201;

[0081] Here, a cavity is formed between the top plate of the corrugated steel plate 202 and the upper end face of the connecting plate and the bottom precast plate 201. This cavity is a vibration damping cavity 7.

[0082] With this setup, the corrugated steel can reduce the weight of the lower floor slab 2 without affecting the support effect. At the same time, the vibration damping cavity 7 formed between the corrugated steel plate 202 and the bottom precast slab 201 can reduce air vibration and thus produce a sound insulation effect.

[0083] In this embodiment, please refer to Figure 5 The vibration damping cavity 7 is filled with sound insulation cotton 8;

[0084] Here, the form of sound insulation cotton 8 is not limited; it can be glass wool or rock wool.

[0085] Here, the form of the sound insulation cotton 8 is not limited; it can be in the form of blocks, boards, or felt. The sound insulation cotton 8 can be cut or prefabricated on-site according to the actual size of the vibration damping cavity 7.

[0086] With this setup, the sound insulation cotton 8 uses the sound absorption principle of porous materials to block airborne and solid-borne sound transmission, significantly improving the sound insulation performance of the floor structure. It also has an attenuation effect on noise such as footsteps and equipment vibration, improving the comfort of using the floor.

[0087] In this embodiment, please refer to Figure 4 and Figure 7-9 The upper floor slab 3 also includes an I-beam positioning groove 301;

[0088] The I-beam positioning groove 301 is provided on the lower end surface of the upper floor slab 3 adjacent to the upper flange of the I-beam 1, and the upper flange of the I-beam 1 is inserted into the I-beam positioning groove 301.

[0089] Here, when there are only two I-beams 1, the two I-beams 1 are edge I-beams, the number of upper floor slabs 3 is two, and both upper floor slabs 3 are edge upper floor slabs. One side of the I-beam positioning groove 301 of the upper floor slab 3 is connected to the side wall of the edge upper floor slab, and the opposite side of the I-beam positioning groove 301 of the edge upper floor slab is in contact with the upper flange side wall of the edge I-beam. The upper side of the I-beam positioning groove 301 of the edge upper floor slab... The end face is placed on the upper end face of the edge I-beam; when the number of I-beams 1 is three or more, the middle I-beam 1 is the middle I-beam, and the floor slab located in the middle is the middle upper floor slab. When the middle floor slab is placed on the middle I-beam, the two side walls of the I-beam positioning groove 301 of the middle upper floor slab are in contact with the side wall of the upper flange of the middle I-beam, so the upper end face of the I-beam positioning groove 301 of the middle upper floor slab is placed on the upper end face of the middle I-beam.

[0090] Here, for reference Figure 8 In this embodiment, a secondary beam 10 is provided in the middle. A secondary beam positioning groove 302 is provided on the upper floor slab 3. The secondary beam positioning groove 302 is provided on the lower end surface of the upper floor slab 3 adjacent to the upper flange of the secondary beam 10. The secondary beam 10 is inserted into the secondary beam positioning groove 302.

[0091] With this setting, the I-beam positioning groove 301 can not only quickly install the upper floor slab 3, but also limit the displacement of the upper floor slab 3 along the splicing direction of the upper floor slab 3, thereby reducing the shaking of the upper floor slab 3.

[0092] In this embodiment, please refer to Figure 3 and Figure 8-9 The floor structure also includes a waterproof membrane 9;

[0093] The waterproof membrane 9 is filled in the gap area between the I-beam 1 and the lower floor slab 2 and the upper floor slab 3;

[0094] Here, the material of waterproof membrane 9 is not limited; it can be asphalt-based waterproof membrane or polymer waterproof membrane.

[0095] Here, for reference Figure 3 In this embodiment, the height of the lower floor slab 2 is less than the height of the web of the I-beam 1. Therefore, when the lower floor slab 2 is located between the upper and lower flanges of the I-beam 1, there is a gap between the concrete layer 203 and the upper flange of the I-beam 1. When the upper floor slab 3 is placed on the lower floor slab 2, the side wall of the I-beam positioning groove 301 contacts the side wall of the upper flange of the I-beam 1. The side wall of the I-beam positioning groove 301 closes the gap between the concrete layer 203 and the upper flange of the I-beam 1 and forms a first void space. The waterproof membrane 9 fills the first void space.

[0096] Here, for reference Figure 8 In this embodiment, a secondary beam 10 is provided in the middle. When the lower floor slab 2 is located between the upper and lower flanges of the I-beam 1, there is also a gap between the concrete layer 203 and the upper flange of the secondary beam 10. When the upper floor slab 3 is placed on the lower floor slab 2, the side wall of the secondary beam positioning groove 302 contacts the side wall of the upper flange of the secondary beam 10. The side wall of the secondary beam positioning groove 302 closes the gap between the concrete layer 203 and the upper flange of the secondary beam 10 and forms a second void space. The waterproof membrane 9 fills both the first void space and the second void space.

[0097] With this setup, the waterproof membrane 9 is installed at the connection gap between the floor slab and the beam. The waterproof membrane 9 can effectively prevent water seepage between the I-beam 1 and the floor slab, avoid corrosion of the steel of the I-beam 1 and moisture failure of the concrete layer 203 of the floor slab, and improve the waterproof durability of the floor structure.

[0098] The specific usage of this embodiment is as follows:

[0099] Workers first position and fix the I-beams 1. The edge I-beams 1 are fixed to the load-bearing wall using L-shaped angle steel and chemical anchors. The middle I-beams 1 can be fixed using column-beam splicing or secondary beam 10 support. Then, the lower floor slabs 2 are installed. The lower floor slabs 2 are placed between two adjacent I-beams 1 and located on the upper end face of the lower flange of the I-beams 1. The lower floor slabs 2 are then slid together sequentially along the length of the I-beams 1. After filling the vibration-damping cavity 7 with sound-insulating cotton 8, waterproof membrane 9 is filled into the gap between the I-beams 1 and the concrete layer 203. Finally, the upper floor slabs are placed perpendicular to the splicing direction of the lower floor slabs 2. Floor slab 3 is aligned with the position of the upper floor slab 3 by the positioning groove 301 of the I-beam, so that the positioning protrusion 401 is inserted into the positioning groove 402. At this time, several first channels 501 and several second channels 502 are connected in sequence to form several prestressed steel cable channels 5. Workers insert prestressed steel cables 6 into the prestressed steel cable channels. The two ends of the prestressed steel cables 6 are respectively anchored to the lower floor slab 2 at the beginning and the lower floor slab 2 at the end and prestressed tensioning is performed. Then concrete is poured into the prestressed steel cable channels 5. After the concrete solidifies, the upper floor slab 3 and the lower floor slab 2 are rigidly connected by the solidified concrete and form a spliced ​​floor structure with the I-beam 1.

[0100] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A modular floor structure, characterized in that, The floor structure includes: Several I-beams are arranged sequentially along the length direction perpendicular to the I-beams, and the area between two adjacent I-beams is the floor slab placement area. Several lower floor slabs are located between the lower flange and the upper flange of the I-beam, and between two adjacent I-beams. The several lower floor slabs are sequentially spliced ​​along the length of the I-beam and fill the lower part of the floor slab placement area. Several upper floor slabs are located on the upper end surface of the upper flange of the I-beam, and the several upper floor slabs are spliced ​​together in sequence to fill the upper part of the floor slab placement area; The positioning unit includes a plurality of positioning protrusions and a plurality of positioning grooves; the plurality of positioning protrusions and the plurality of positioning grooves are respectively disposed at the junction between the upper floor slab and the lower floor slab, and the plurality of positioning protrusions are inserted into the plurality of positioning grooves; A prestressed steel cable channel, which penetrates several opposite sidewalls of the lower floor slabs and passes through positioning protrusions and positioning grooves, with the axis of the prestressed steel cable channel parallel to the length direction of the I-beam; A prestressed steel cable passes through a prestressed steel cable channel, and its two ends are fixed to the first lower floor slab and the last lower floor slab, respectively.

2. The spliced ​​floor structure according to claim 1, characterized in that, The lower floor slab includes a bottom precast slab, a corrugated steel plate, and a concrete layer; The corrugated steel plate is laid on the upper surface of the bottom precast slab; the concrete layer is poured on the upper surface of the corrugated steel plate. The positioning groove is located on the upper surface of the concrete layer.

3. The spliced ​​floor structure according to claim 2, characterized in that, The positioning protrusion is provided on the lower end face of the upper floor slab; The prestressed steel cable channel includes several first channels and several second channels. The first channels penetrate the opposite sidewalls of the concrete layer and connect to the positioning grooves. The axis of the first channel is parallel to the length direction of the I-beam. The several first channels correspond one-to-one with the several positioning grooves. The several second channels penetrate the opposite sidewalls of the several positioning protrusions. The several second channels correspond one-to-one with the several positioning protrusions. The axis of the second channel is parallel to the axis of the first channel. When the positioning protrusion is inserted into the positioning groove, several first channels and several second channels are connected to form a prestressed steel cable channel. The prestressed steel cable passes through the prestressed steel cable channel, and both ends of the prestressed steel cable are fixed to the concrete layer of the first lower floor slab and the concrete layer of the last lower floor slab, respectively.

4. A modular floor structure according to claim 3, characterized in that, The positioning protrusion and positioning groove are conical; the end of the conical positioning protrusion away from the upper floor slab is the upper end face, and the area of ​​the upper end face of the positioning protrusion is smaller than the area of ​​the lower end face of the positioning protrusion.

5. A modular floor structure according to claim 2, characterized in that, A vibration-damping cavity is formed between the corrugated steel plate and the upper surface of the bottom precast slab.

6. A modular floor structure according to claim 5, characterized in that, The vibration-damping cavity is filled with sound-absorbing cotton.

7. A modular floor structure according to claim 5, characterized in that, Several of the upper floor slabs are spliced ​​sequentially along the splicing direction perpendicular to the lower floor slabs.

8. A modular floor structure according to claim 3, characterized in that, The upper floor slab also includes I-beam positioning grooves; The I-beam positioning groove is set on the lower end surface of the upper floor slab, and the upper flange of the I-beam is inserted into the I-beam positioning groove.

9. A modular floor structure according to claim 5, characterized in that, The floor structure also includes waterproof membrane; The waterproof membrane is filled in the gap area between the I-beam and the lower and upper floor slabs.

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