Floor slab connecting structure

Abstract

The floor slab connecting structure comprises a plurality of prefabricated slabs, the two sides of each prefabricated slab are provided with a rabbet and a tenon respectively, the prefabricated slabs are connected end to end through the rabbets and the tenons in a matched mode, the rabbets are provided with first through holes, and the tenons are provided with second through holes corresponding to the first through holes; a third through hole corresponding to the second through hole is formed in a top plate of the first T-shaped beam, and the first T-shaped beam is connected to the bottom of the tenon through a bolt; the first T-shaped beam and the second T-shaped beam are connected and spliced through bolts to form an I-shaped beam. A part of the beam body, namely the first T-shaped beam, is arranged on the prefabricated slab on the site ground, and the prefabricated slab adopts right-angle butt joint of the first T-shaped beam and the second T-shaped beam when being in butt joint in the air, so that the construction efficiency of butt joint of the prefabricated slab and the beam body is improved, and butt joint of a floor slab and a frame column can be rapidly completed.

Description

Technical Field

[0001] The invention relates to the technical field of precast concrete structures, in particular to a floor slab connection structure. Background Art

[0002] Concrete floor components are an indispensable and important part of buildings, usually divided into cast-in-place concrete floor and precast concrete floor. They each have different characteristics and applicable scenarios. Cast-in-place concrete floor refers to the floor completed on site through a series of processes such as formwork support, steel bar arrangement and concrete pouring. Precast concrete floor means that the concrete panels are pre-made in the factory and transported to the construction site for splicing and installation. Compared with cast-in-place concrete floor, precast concrete floor has many advantages in construction efficiency and environmental performance. Compared with traditional cast-in-place concrete floor, the construction speed of precast concrete floor is significantly faster. Precast panels are uniformly produced in the factory. Through mechanized and standardized production processes, the time of on-site construction can be effectively reduced, and the time consumption of on-site pouring, maintenance and other links can be avoided. In addition, precast concrete floor is also more environmentally friendly. Since most of the production process is carried out in the factory, the dust, noise and waste emissions generated during on-site operations are reduced, which helps to reduce environmental pollution during construction.

[0003] Although precast concrete floors have great advantages in construction speed, the current construction methods also have certain shortcomings. Generally speaking, the existing construction method of precast concrete floors is to install multiple precast panels on the beams of the frame columns to form floor panels. These precast panels are docked in the air on the construction floor and connected and fixed by the beam-column structure. Although this method is faster than the construction speed of cast-in-place concrete floors, since each precast panel needs to be docked individually, the connection holes on the top surface of the beam need to be docked with the connection holes on the bottom surface of the precast panel. The process of docking the planes is relatively complicated and time-consuming, especially in the case of high floors or complex building floor structures, the construction efficiency is still low. Summary of the invention

[0004] The technical problem to be solved by the present invention is to solve the problem of low efficiency in the construction of prefabricated plate jointing.

[0005] In order to solve the above technical problems, the present invention provides a floor connection structure, including: a plurality of prefabricated panels, wherein a tongue and a tenon are respectively provided on both sides of the prefabricated panels, and the plurality of prefabricated panels are connected end to end through the tongue and the tenon, wherein the tongue is provided with a first through hole, and the tenon is provided with a second through hole corresponding to the first through hole; a first T-beam, wherein a top plate of the first T-beam is provided with a third through hole corresponding to the second through hole, and the first T-beam is connected and arranged on the bottom of the tenon by bolt connection; a second T-beam, wherein a top surface of a top plate of the second T-beam is abutted against a bottom surface of a top plate of the first T-beam, a top surface of a bottom plate of the second T-beam is abutted against a bottom surface of a bottom plate of the first T-beam, and the first T-beam and the second T-beam are spliced ​​by bolt connection to form an I-beam.

[0006] Furthermore, the prefabricated plate includes a plate body, a first thin plate and a second thin plate, the first thin plate and the second thin plate are respectively located on both sides of the plate body, the two sides of the first thin plate are respectively connected to the plate body and the tongue and groove, the two sides of the second thin plate are respectively connected to the plate body and the tenon, and the thickness of the tongue and groove, the tenon, the first thin plate and the second thin plate are all less than the thickness of the plate body.

[0007] Furthermore, the thickness of the first thin plate is equal to the thickness of the second thin plate, and the thickness of the tenon is greater than the thickness of the second thin plate.

[0008] Furthermore, the thickness calculation formula of the tenon is: T=k*D*(AB) / B, wherein T is the thickness of the tenon, k is the proportional coefficient of the second thin plate, k is 1.1-1.2, D is the width of the second thin plate, B is the thickness of the second thin plate, and A is the thickness of the plate body.

[0009] Furthermore, the plate body includes a side plate, a conventional plate and a middle plate, one side of the side plate is connected to the first thin plate or the second thin plate, the middle plate, the conventional plate and the other side of the side plate are overlapped in sequence, the middle plate, the conventional plate and the side plate are all tongue-and-groove plates, the tongues on both sides of the middle plate are lower tongues, the tongues on both sides of the conventional plate are upper tongues and lower tongues respectively, and the other side of the side plate is an upper tongue.

[0010] Furthermore, it also includes a first connecting member and a second connecting member, the first connecting member and the second connecting member are both arranged on the plate body, the two ends of the first connecting member are respectively connected to the side plate and the conventional plate, and the two ends of the second connecting member are respectively connected to the conventional plate and the middle plate.

[0011] Furthermore, a fourth through hole corresponding to the third through hole is provided on the top of the second T-shaped beam, and after the bolt passes through the first through hole, the second through hole, the third through hole and the fourth through hole in sequence, the tongue and groove, the tenon, the first T-shaped beam and the second T-shaped beam are fixedly connected.

[0012] Furthermore, the side surface of the first T-shaped beam is connected to the side surface of the second T-shaped beam by bolts.

[0013] Furthermore, it also includes a third connecting member, one end of which is connected to the bottom of the prefabricated board, and the other end of which is connected to the bottom of the wing plate of the first T-shaped beam.

[0014] Furthermore, the notch of the tongue and groove faces downward, and the tongue and groove is formed by a groove of the channel steel.

[0015] Compared with the prior art, a floor slab connection structure according to an embodiment of the present invention has the following beneficial effects: the floor slabs are spliced ​​together on site by connecting the tongue and the tenon, and then the first T-beam is set at the bottom of the tenon of the prefabricated plate by bolt connection, and then the spliced ​​floor slab is suspended above the second T-beam of the frame column, and the first T-beam and the second T-beam are connected and spliced ​​to form an I-beam, so as to fix and support the spliced ​​floor slab, and a part of the beam body, that is, the first T-beam, is set on the prefabricated plate on the ground on site, so that the first T-beam and the second T-beam are connected at right angles when the prefabricated plate is connected in the air, thereby accelerating the construction efficiency of the prefabricated plate connection beam body, and can quickly complete the connection between the floor slab and the frame column. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a cross-sectional view of the floor slab connection structure provided by the present invention;

[0017] Figure 2 It is a cross-sectional view of a prefabricated slab and a first T-shaped beam of a floor slab connection structure provided by the present invention;

[0018] Figure 3 It is a front view of the prefabricated board of the floor connection structure provided by the present invention;

[0019] Figure 4 It is a front view of another embodiment of the prefabricated board of the floor connection structure provided by the present invention;

[0020] Figure 5 It is a cross-sectional view of a first T-shaped beam and a second T-shaped beam of a floor slab connection structure provided by the present invention.

[0021] The corresponding relationship between the reference numerals and the component names is as follows:

[0022] 1. Prefabricated board; 11. Board body; 111. Side board; 112. Conventional board; 113. Middle board; 12. First thin board; 13. Second thin board; 101. Tongue and groove; 102. Tenon; 103. First through hole; 104. Second through hole; 2. First T-beam; 201. Third through hole; 3. Second T-beam; 301. Fourth through hole; 4. Frame column; 5. First connecting piece; 6. Second connecting piece; 7. Third connecting piece. DETAILED DESCRIPTION

[0023] The following is a description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be appreciated by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope of the present invention. Similarly, for clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0024] like Figures 1 to 5 As shown, an embodiment of the present invention discloses a floor connection structure, including: a plurality of prefabricated panels 1, a first T-shaped beam 2 and a second T-shaped beam 3.

[0025] Among them, the prefabricated panels 1 are respectively provided with a tongue and groove 101 and a tenon 102 on both sides, and multiple prefabricated panels 1 are connected end to end through the tongue and groove 101 and the tenon 102, the tongue and groove 101 is provided with a first through hole 103, and the tenon 102 is provided with a second through hole 104 corresponding to the first through hole 103; the top plate of the first T-shaped beam 2 is provided with a third through hole 201 corresponding to the second through hole 104, and the first T-shaped beam 2 is arranged on the bottom of the tenon 102 by bolt connection; the top surface of the top plate of the second T-shaped beam 3 is against the bottom surface of the top plate of the first T-shaped beam 2, and the top surface of the bottom plate of the second T-shaped beam 3 is against the bottom surface of the bottom plate of the first T-shaped beam 2, and the first T-shaped beam 2 and the second T-shaped beam 3 are connected and spliced ​​by bolts to form an I-beam.

[0026] The floor connection structure of the present application is connected by the tongue and groove 101 and the tenon 102, so that multiple prefabricated panels 1 can complete the splicing of the floor on site, and then the first T-beam 2 is set at the bottom of the tenon 102 of the prefabricated panel 1 by bolt connection, and the spliced ​​floor is suspended above the second T-beam 3 of the frame column 4, and the first T-beam 2 and the second T-beam 3 are connected and spliced ​​to form an I-beam, so as to fix and support the spliced ​​floor, and the first T-beam 2 and the second T-beam 3 are connected at right angles to improve the construction efficiency of the prefabricated panel 1 connecting the beam body, and the floor can be quickly connected with the frame column 4. By setting a part of the beam body, that is, the first T-beam 2, on the prefabricated panel 1 on the ground on site, the first T-beam 2 and the second T-beam 3 are used to connect at right angles when the prefabricated panel 1 is connected in the air, so as to speed up the construction efficiency of the prefabricated panel 1 connecting the beam body, and quickly complete the connection between the floor and the frame column 4.

[0027] By docking and matching the tongue and groove 101 of the prefabricated panel 1 with the tenon 102, multiple prefabricated panels 1 can be quickly and accurately spliced ​​together to assemble into a floor slab, avoiding the misalignment or asymmetry problems that may occur in the traditional splicing method. The cooperation between the tongue and groove 101 and the tenon 102 provides good positioning accuracy, ensuring that the connection between the floor slabs is more firm and reliable. At the same time, by matching the third through hole 201 of the first T-beam 2 and the second through hole 104 of the tenon 102, it is convenient to quickly fix the first T-beam 2 on the prefabricated panel 1 with bolts on site, reducing the dependence on highly skilled workers and simplifying the construction process. The splicing method of the T-beam and I-beam structure effectively simplifies the docking operation between the floor slab and the beam body. The first T-beam 2 is docked with the tenon 102 to further strengthen the connection stability between the prefabricated panels 1. The docking of the second T-beam 3 and the first T-beam 2 constitutes an I-beam structure, which enhances the overall rigidity of the floor slab. It not only reduces the complex operations in the traditional beam-column connection process, but also improves the stability and bearing capacity of the structure.

[0028] By adopting the standardized connection structure of the prefabricated panel 1, the links of on-site concrete pouring and processing can be greatly reduced, thereby reducing the construction cost. In addition, by simplifying the splicing process and reducing the need for highly skilled workers, it is helpful to reduce labor costs and speed up the overall project progress. Through the precise docking of the tongue and groove 101 and the tenon 102, the I-beam structure formed by the splicing of two T-beams ensures the stable connection between the floor slab and the beam body, effectively improves the bearing capacity of the floor slab and the overall safety of the structure, can effectively resist the action of external forces, and reduce the structural safety hazards caused by loose connections. A part of the beam body, that is, the first T-beam 2, can be pre-set on the prefabricated panel 1 on the ground on site, so that the construction site can be operated more flexibly, and the connection process of the prefabricated panel 1 and the beam body does not rely on large-scale construction machinery, and can be completed more efficiently in small spaces or high-rise buildings. In addition, the splicing order of the panels can be adjusted as needed during the construction process to ensure the continuity and smooth progress of the operation. Since the prefabricated panels 1 are produced in the factory, the on-site concrete pouring and curing process is reduced, the emission of noise, dust and waste is reduced, and it meets the requirements of modern green construction. At the same time, standardized component production helps to rationally utilize materials, reduce waste, and promote the sustainable development of the construction industry.

[0029] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, the prefabricated plate 1 includes a plate body 11, a first thin plate 12 and a second thin plate 13, the first thin plate 12 and the second thin plate 13 are respectively located on both sides of the plate body 11, the two sides of the first thin plate 12 are respectively connected to the plate body 11 and the tongue and groove 101, the two sides of the second thin plate 13 are respectively connected to the plate body 11 and the tenon 102, and the thickness of the tongue and groove 101, the tenon 102, the first thin plate 12 and the second thin plate 13 are all less than the thickness of the plate body 11.

[0030] By making the thickness of the tongue and groove 101, the tenon 102, the first thin plate 12 and the second thin plate 13 smaller than the thickness of the plate body 11, a groove is formed between adjacent precast panels 1. After the floor panels are installed on the frame columns 4, concrete is poured into the formed groove to strengthen the connection strength between the precast panels 1 and strengthen the precast panels 1. After the concrete is poured, it plays a filling role, which not only improves the bonding strength between the floor panels, but also improves the overall compressive, tensile and shear strengths, reduces the relative displacement and looseness between the floor panels, and ensures the stability of the structure.

[0031] Specifically, when the first T-beam 2 is bolted to the tenon 102, the bolts penetrate the third through hole 201, the second through hole 104, and the first through hole 103 in sequence, and extend to the groove formed between the adjacent precast panels 1, and concrete is poured on the bolts in the groove. The pouring of concrete in the groove can also enhance the connection strength between the precast panel 1 and the T-beam, so that the floor slab can be better combined with the frame column 4 and the beam when subjected to force. The integrity of the floor slab and the main structure is enhanced, effectively avoiding the sinking, deformation or loosening of the floor slab caused by poor connection, and improving the long-term stability and safety of the building. At the same time, since the thickness of the tongue and groove 101, the tenon 102, the first thin plate 12 and the second thin plate 13 are all less than the thickness of the plate body 11, the force structure of the floor slab can be reasonably distributed and optimized. The thinner thin plate portion can effectively reduce the deadweight of the floor slab, thereby improving the overall rigidity of the floor slab. The plate body 11 bears the main structural load, so that the floor slab can evenly distribute the mechanical stress when bearing a large external force, thereby enhancing the compressive strength and stability of the floor slab. The thin structure of the first thin plate 12 and the second thin plate 13 effectively reduces the weight of the floor slab, which not only reduces the difficulty of transportation and installation during construction, but also reduces the need for the use of lifting equipment during construction, thereby reducing construction costs. At the same time, the lighter structure helps to reduce the overall load of the building and improve the flexibility of the building structure, which is particularly suitable for high-rise buildings and projects with special requirements for loads.

[0032] By setting the first thin plate 12 and the second thin plate 13, the tongue 101 and the tenon 102 can be extended outward, which is convenient for matching between the two. The positioning accuracy between the plate bodies 11 during the splicing process can avoid the structural asymmetry or instability caused by improper splicing. The first thin plate 12 and the second thin plate 13 are connected to the plate body 11 through the tongue 101 and the tenon 102, making the disassembly and assembly of the floor connection more convenient and having good operability. When the floor needs to be adjusted or replaced, it can be easily disassembled and replaced, reducing the construction period and labor input. It is particularly suitable for projects with rapid construction, such as prefabricated buildings and modular buildings.

[0033] like Figure 1 and Figure 3 As shown, in an optional embodiment of the present invention, the thickness of the first thin plate 12 is equal to the thickness of the second thin plate 13 , and the thickness of the tenon 102 is greater than the thickness of the second thin plate 13 .

[0034] By making the thickness of the first thin plate 12 and the second thin plate 13 equal, the symmetry of the connection structure of the prefabricated board 1 is ensured. The symmetrical thickness of the thin plates helps to avoid structural offset or asymmetric load caused by uneven thickness during splicing, thereby maintaining the accuracy and stability of the connection of the prefabricated board 1 and ensuring that the prefabricated board 1 after splicing can remain flat and firm during use. By making the thickness of the tenon 102 greater than the thickness of the second thin plate 13, the tenon 102 can better cooperate with the second thin plate 13 during the connection process, increasing the contact area of ​​the connection part, effectively improving the shear resistance of the connection of the prefabricated board 1, and being able to better withstand the shear stress under the action of external forces, avoiding connection failure or slippage of the prefabricated board 1 due to insufficient contact area. The first thin plate 12 and the second thin plate 13 are of equal thickness, so that the force distribution of the connection structure is more uniform, which can effectively improve the overall rigidity of the connection part of the prefabricated panel 1. The cooperation between the tenon 102 and the second thin plate 13 enhances the stability of the joint part, so that the entire prefabricated panel 1 structure can disperse and transfer mechanical stress more evenly when subjected to external loads, and improve the overall compression resistance and deformation resistance of the prefabricated panel 1. The tenon 102 enables the prefabricated panel 1 to be better aligned and positioned during the splicing process, ensuring the precise docking of the splicing part. The thickness difference between the tenon 102 and the second thin plate 13 helps to avoid structural dislocation caused by improper splicing during splicing, making the connection of the prefabricated panel 1 simpler and faster, and further improving the construction accuracy. The tenon 102 is thicker than the second thin plate 13, which can increase the mechanical strength of the connection part, thereby improving the long-term stability and durability of the connection of the prefabricated panel 1, effectively resisting wear and deformation in long-term use, extending the service life of the prefabricated panel 1 structure, and reducing the frequency of maintenance and repair.

[0035] In an optional embodiment of the present invention, the thickness calculation formula of the tenon 102 is: T=k*D*(AB) / B, wherein T is the thickness of the tenon 102, k is the proportional coefficient of the second thin plate 13, K is 1.1-1.2, D is the width of the second thin plate 13, B is the thickness of the second thin plate 13, and A is the thickness of the plate body 11.

[0036] By using the calculation formula T=k*D(AB) / B for the thickness of the tenon 102, the thickness of the tenon 102 can be precisely adjusted according to the size parameters of different floor slabs, such as the thickness A of the plate body 11, the thickness B of the second thin plate 13, and the width D. By selecting an appropriate value within the value range of the proportional coefficient k, fine-tuning can be performed according to actual conditions to adapt to different floor slab requirements, ensuring the rationality of the thickness of the tenon 102 and the best connection effect. The calculation formula for the thickness of the tenon 102 helps to ensure the strength and stability of the floor slab connection, and avoids loose connections or uneven force due to the tenon 102 being too thick or too thin.

[0037] The thickness of the tenon 102 calculated by this formula makes the parts connected to the floor slab more accurately matched and improves the docking accuracy during splicing. Especially in large-scale construction, it can effectively reduce the errors caused by manual operation and ensure the reliability of the floor slab connection. The reasonable thickness of the tenon 102 ensures the strength and durability of the floor slab connection, reduces the long-term structural problems caused by unstable connection, and ensures the stability and safety of the floor slab during use. This calculation formula enables the thickness of the tenon 102 to be optimized according to the actual size of the plate body 11, so that the connection part can achieve the best mechanical properties when bearing different loads. By adjusting the proportional coefficient k, the designer can flexibly control the strength and compressive resistance of the connection according to different floor slab thicknesses and sizes. The appropriate thickness of the tenon 102 can ensure the stability of the connection while avoiding excessive reinforcement that leads to material waste or increased construction costs. Reasonable calculation and control of the thickness of the tenon 102 can evenly share the pressure when the floor connection is subject to external loads or environmental influences, reduce local stress concentration, ensure the stability of the floor structure as a whole, reduce the risk of floor deformation, loosening or breakage due to improper connection, and improve the overall safety and durability of the building.

[0038] like Figure 4 As shown, in an optional embodiment of the present invention, the plate body 11 includes a side plate 111, a conventional plate 112 and a middle plate 113, one side of the side plate 111 is connected to the first thin plate 12 or the second thin plate 13, the other sides of the middle plate 113, the conventional plate 112 and the side plate 111 are overlapped in sequence, the middle plate 113, the conventional plate 112 and the side plate 111 are all tongue-and-groove plates, the tongues 101 on both sides of the middle plate 113 are both lower tongues, the tongues 101 on both sides of the conventional plate 112 are upper tongues and lower tongues respectively, and the other side of the side plate 111 is an upper tongue.

[0039] The plate body 11 is assembled by the side plate 111, the conventional plate 112 and the middle plate 113, and the tongue-and-groove plate structure is adopted, which can effectively improve the connection strength of the plate body 11. The tongue-and-groove plate makes the floor slab more firm and stable during the connection process through the overlap of the lower tongue and the upper tongue, avoiding the potential safety hazards caused by the loose splicing. By adopting a standardized tongue-and-groove structure on the side plate 111, the conventional plate 112 and the middle plate 113, the plate body 11 can be quickly docked and installed when spliced ​​on site. In particular, the lower tongue of the middle plate 113 cooperates with the upper and lower tongues of the conventional plate 112, so that the plate parts can be overlapped quickly and accurately, greatly improving the assembly speed of the prefabricated plate 1 and shortening the overall construction period. By adopting a reasonable overlap method between the side plate 111, the conventional plate 112 and the middle plate 113, the construction personnel do not need to adjust the position of the plate body 11 too much, and can more easily complete the splicing work of the floor slab, simplifying the construction process, reducing the dependence on high-skilled operations, and reducing the technical difficulty of the construction personnel. Since all parts of the plate body 11 are tongue-and-groove plates, and the tongue-and-groove 101 makes the connection between the plates have good sealing properties, it can effectively prevent the penetration of moisture, air or other substances, thereby improving the waterproof performance and durability of the floor structure and extending the service life of the floor.

[0040] like Figure 4 As shown, in an optional embodiment of the present invention, it also includes a first connecting member 5 and a second connecting member 6. The first connecting member 5 and the second connecting member 6 are both arranged on the plate body 11. The two ends of the first connecting member 5 are respectively connected to the side plate 111 and the conventional plate 112, and the two ends of the second connecting member 6 are respectively connected to the conventional plate 112 and the middle plate 113.

[0041] By introducing the first connector 5 and the second connector 6, the connection stability between the side plate 111, the conventional plate 112 and the middle plate 113 is further strengthened. The first connector 5 is connected to the side plate 111 and the conventional plate 112, and the second connector 6 is connected to the conventional plate 112 and the middle plate 113, forming a multi-point support, ensuring the tight connection between the various plate bodies 11, and effectively preventing structural safety hazards caused by loose or loose connections. Through the provision of the first connector 5 and the second connector 6, the connection between the plate bodies 11 is simpler and more efficient. During the construction process, the construction personnel only need to install according to the standard connection method, avoiding cumbersome docking and adjustment, greatly saving construction time and labor costs. At the same time, the use of multiple connectors also enhances the adjustability of the connection, making the fine-tuning of the position of the plate body 11 during construction more flexible and adaptable to different construction environments. Since the first connector 5 and the second connector 6 optimize the connection mode between the panels 11, the construction personnel can complete the combination of the floor panels by simply splicing and installing the connectors, reducing the reliance on highly skilled operations and the difficulty of construction, so that even construction personnel with less experience can quickly master the installation skills, thereby improving the overall construction efficiency. By reasonably setting the first connector 5 and the second connector 6, the stress distribution of the connection part is optimized, the situation of excessive local stress is reduced, and the risk of cracks or damage in the long-term use of the prefabricated panel 1 is reduced, which can effectively extend the service life of the prefabricated panel 1 and reduce the subsequent maintenance costs.

[0042] like Figure 1 and Figure 5 As shown, in an optional embodiment of the present invention, a fourth through hole 301 corresponding to the third through hole 201 is provided on the top of the second T-shaped beam 3, and after the bolts penetrate the first through hole 103, the second through hole 104, the third through hole 201 and the fourth through hole 301 in sequence, the tongue and groove 101, the tenon 102, the first T-shaped beam 2 and the second T-shaped beam 3 are fixedly connected.

[0043] By setting a fourth through hole 301 corresponding to the third through hole 201 at the top of the second T-shaped beam 3, bolts are sequentially passed through the multiple through holes for fixing, ensuring a tight connection between the tongue and groove 101, the tenon 102, the first T-shaped beam 2 and the second T-shaped beam 3, effectively improving the connection strength between the various parts of the floor slab, reducing the structural instability caused by loose connections, and thus greatly improving the overall safety of the floor slab. By passing bolts through multiple through holes and fixing, construction personnel only need to follow the standard bolt installation process to complete the connection of the entire floor slab, reducing complex operating steps, making the floor slab connection more convenient and efficient, simplifying the construction process, and saving construction time and labor costs.

[0044] By setting multiple through holes and fixing with bolts, it is helpful to evenly distribute the external force acting on the connection of the prefabricated panel 1, which not only improves the tensile strength of the connection part of the prefabricated panel 1, but also effectively reduces the local stress concentration phenomenon, thereby improving the overall mechanical properties and enhancing the stability of the floor structure under the external load. By bolting through multiple through holes in sequence and fixing the connection, the impact force of the prefabricated panel 1 under the action of external forces such as earthquakes can be effectively dispersed, thereby enhancing the seismic resistance of the floor. Not only the integrity of the floor is improved, but also the safety of the building in disasters such as earthquakes is improved, ensuring that the floor connection is not easy to loosen or damage. Because different components are fixed by bolts, the loose connection phenomenon that may be caused by long-term use is avoided, the durability of the connection of the prefabricated panel 1 is enhanced, the stability of the connection part is guaranteed, which helps to extend the service life of the floor and reduces the structural problems caused by loose connection or wear during long-term use.

[0045] like Figure 1 and Figure 5 As shown, in an optional embodiment of the present invention, the side surface of the first T-shaped beam 2 is connected to the side surface of the second T-shaped beam 3 by bolts.

[0046] By setting bolt connections on the sides of the first T-beam 2 and the second T-beam 3, the fastening force between the first T-beam 2 and the second T-beam 3 can be effectively increased. Setting bolt connections on the sides can provide stronger shear resistance and tensile resistance, thereby ensuring the structural stability of the floor slab connection parts and avoiding overall instability caused by loose connections or failures. The side bolt connection method is relatively simple. Construction personnel only need to penetrate and tighten the bolts according to the standard process, which reduces the complicated installation steps, has high construction efficiency, can save time and labor costs, and is particularly suitable for large-scale floor slab installation projects. The side bolt connection can effectively disperse and transmit external forces, especially under dynamic loads such as earthquakes. By increasing the connection strength between the first T-beam 2 and the second T-beam 3, the overall seismic resistance of the floor slab can be significantly improved. The structural deformation or displacement that may occur during the vibration process is reduced, thereby improving the seismic safety of the building.

[0047] The bolt connection method set on the side is not limited by the specific form of the floor and beam, and is suitable for different types of building structures. Whether in high-rise buildings, industrial plants or other complex structures, the side bolt connection can provide a reliable fixing solution with strong adaptability. The side bolt connection helps to evenly distribute the force at the connection between beams, avoiding the stress concentration problem that may occur in traditional connection methods, which helps to improve the balance and safety of the entire structure and avoid structural damage caused by local overload.

[0048] like Figure 1As shown, in an optional embodiment of the present invention, a third connecting member 7 is further included, one end of the third connecting member 7 is connected to the bottom of the prefabricated panel 1, and the other end of the third connecting member 7 is connected to the bottom of the wing plate of the first T-shaped beam 2.

[0049] By setting the third connector 7, the connection between the prefabricated panel 1 and the first T-shaped beam 2 is further strengthened, providing additional support. By setting the connection at the bottom of the prefabricated panel 1 and the bottom of the wing plate of the first T-shaped beam 2, the overall connection strength between the prefabricated panel 1 and the first T-shaped beam 2 can be effectively improved, ensuring that the connection part can withstand a larger load, and improving the stability of the structure of the prefabricated panel 1. By setting the third connector 7, it is helpful to optimize the force distribution between the prefabricated panel 1 and the first T-shaped beam 2. By setting the connection at different positions, the force at the connection of the prefabricated panel 1 can be made more uniform, avoiding the local stress concentration phenomenon that may occur in the traditional connection method, reducing the structural damage caused by stress concentration, and improving the safety of the overall structure. After adding the third connector 7, the external force on the connection of the prefabricated panel 1 can be better dispersed, especially under the action of dynamic loads such as earthquakes, the additional support of the connector can effectively reduce the impact of vibration on the floor slab, reduce the displacement or deformation caused by vibration, thereby significantly improving the seismic performance of the building and enhancing the seismic stability of the floor slab. The third connector 7 can further enhance the shear resistance between the precast slab 1 and the first T-beam 2. In particular, when subjected to vertical loads or shear forces, the third connector 7 provides additional resistance, enhances the stability of the overall structure under load, and effectively prevents the floor from sinking or shifting. The third connector 7 can effectively share the long-term load at the connection between the floor and the beam, reducing looseness or fatigue damage caused by long-term use. By improving the durability of the connection, the third connector 7 makes the floor structure more reliable, extends the service life of the floor system, and reduces the need for later maintenance.

[0050] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, the tongue 101 is formed by a groove of a channel steel. By setting the notch of the tongue 101 to face downward, the tongue 101 of the prefabricated panel 1 can be more firmly docked with the tenon 102 of another prefabricated panel 1 below by gravity. The tongue 101 formed by the groove structure of the channel steel can effectively increase the shear resistance between the prefabricated panels 1 and the prefabricated panels 1. The groove of the channel steel makes the connection part more resistant to shear force, especially when subjected to vertical load or horizontal shear force, which can effectively reduce the shear stress of the connection part and prevent the prefabricated panel 1 from slipping or displacement under load, thereby improving the safety and bearing capacity of the floor slab.

[0051] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in the present invention can be achieved, and this document does not limit this.

[0052] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A floor connection structure, characterized in that: include: A plurality of prefabricated panels, each of which is provided with a tongue and a tenon on both sides thereof, wherein the plurality of prefabricated panels are connected end to end by the tongue and the tenon, wherein the tongue is provided with a first through hole, and the tenon is provided with a second through hole corresponding to the first through hole; a first T-shaped beam, wherein a top plate of the first T-shaped beam is provided with a third through hole corresponding to the second through hole, and the first T-shaped beam is arranged on the bottom of the tenon by bolt connection; A second T-shaped beam, the top surface of the top plate of the second T-shaped beam is against the bottom surface of the top plate of the first T-shaped beam, the top surface of the bottom plate of the second T-shaped beam is against the bottom surface of the bottom plate of the first T-shaped beam, and the first T-shaped beam and the second T-shaped beam are connected and spliced ​​by bolts to form an I-beam.

2. The floor connection structure according to claim 1, characterized in that: The prefabricated plate includes a plate body, a first thin plate and a second thin plate, wherein the first thin plate and the second thin plate are respectively located at two sides of the plate body, the two sides of the first thin plate are respectively connected to the plate body and the tongue and groove, the two sides of the second thin plate are respectively connected to the plate body and the tenon, and the thickness of the tongue and groove, the tenon, the first thin plate and the second thin plate are all less than the thickness of the plate body.

3. The floor connection structure according to claim 2, characterized in that: The thickness of the first thin plate is equal to the thickness of the second thin plate, and the thickness of the tenon is greater than the thickness of the second thin plate.

4. The floor connection structure according to claim 3, characterized in that: The thickness calculation formula of the tenon is: T = k*D*(AB) / B, Among them, T is the thickness of the tenon, k is the proportional coefficient of the second thin plate, k is 1.1-1.2, D is the width of the second thin plate, B is the thickness of the second thin plate, and A is the thickness of the plate body.

5. The floor connection structure according to claim 2, characterized in that: The plate body includes a side plate, a conventional plate and a middle plate, one side of the side plate is connected to the first thin plate or the second thin plate, the middle plate, the conventional plate and the other side of the side plate are overlapped in sequence, the middle plate, the conventional plate and the side plate are all tongue-and-groove plates, the tongues on both sides of the middle plate are lower tongues, the tongues on both sides of the conventional plate are upper tongues and lower tongues respectively, and the other side of the side plate is an upper tongue.

6. The floor connection structure according to claim 5, characterized in that: It also includes a first connecting member and a second connecting member, both of which are arranged on the plate body, the two ends of the first connecting member are respectively connected to the side plate and the conventional plate, and the two ends of the second connecting member are respectively connected to the conventional plate and the middle plate.

7. The floor connection structure according to claim 1, characterized in that: A fourth through hole corresponding to the third through hole is provided on the top of the second T-shaped beam, and after the bolt passes through the first through hole, the second through hole, the third through hole and the fourth through hole in sequence, the tongue and groove, the tenon, the first T-shaped beam and the second T-shaped beam are fixedly connected.

8. The floor connection structure according to claim 1, characterized in that: The first T-shaped beam side surface is connected with the second T-shaped beam side surface by bolts.

9. The floor connection structure according to claim 1, characterized in that: It also includes a third connecting member, one end of which is connected to the bottom of the prefabricated board, and the other end of which is connected to the bottom of the wing plate of the first T-shaped beam.

10. The floor connection structure according to claim 1, characterized in that: The notch of the tongue and groove faces downward, and the tongue and groove is formed by a groove of the channel steel.

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