Fabricated prefabricated floor slab

Abstract

The invention provides an assembly type prefabricated floor slab, and relates to the technical field of building structures. The fabricated prefabricated floor slab comprises a concrete coaming body, a concrete slab is poured at the bottom end of the concrete coaming body, longitudinal steel bars are installed in the concrete slab, elbows are installed at the two ends of the longitudinal steel bars, transverse steel bar frames are installed at the two ends of the longitudinal steel bars, and transverse steel bars are installed at the top ends of the longitudinal steel bars; binding heads are installed at the two ends of the transverse steel bars, first outer frame steel bars are bound at the two ends of the transverse steel bars, connectors are installed at the two ends of the first outer frame steel bars, a protection mechanism is arranged at the top end of the concrete slab, a positioning plate is poured at the top end of the protection mechanism, and second outer steel bars are erected at the two ends of the positioning plate. Connecting steel bars are installed at the two ends of the second outer steel bars. Corresponding prefabricated floor slabs can be accurately aligned, meanwhile, movement and later pouring of the prefabricated floor slabs are facilitated, and the installation and construction efficiency of the prefabricated floor slabs is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, and in particular to an assembled prefabricated floor slab. Background Art

[0002] Composite floor is an assembled integral floor made of prefabricated panels and cast-in-place reinforced concrete layers. Composite floor has the advantages of good integrity, high rigidity, and good crack resistance. The upper and lower surfaces of the composite floor are flat, which is convenient for finishing layer decoration. It is suitable for high-rise buildings and large-span buildings with high requirements for overall rigidity. At present, most buildings in my country are reinforced concrete structures. This structure consumes a lot of building materials and is heavy. Especially for floor slabs, the middle part is generally suspended, so the strength of the floor slab is low. For this reason, the country advocates the use of cast-in-place hollow floor technology to realize the construction of floor slabs. In this way, not only can the consumables be reduced, but also the weight of the floor slab can be reduced. This type of floor slab belongs to assembled floor slab.

[0003] Most of the existing prefabricated floor slabs are composed of a combination of steel bars and concrete, and have high bearing capacity and earthquake resistance. During the installation process, the prefabricated floor slabs are generally hoisted to the top of the building by a crane, and the prefabricated floor slabs are adjusted and installed by construction workers below. After the crane hoists the floor slab to the top of the building, the construction workers are required to manually align the prefabricated floor slabs with the corresponding prefabricated floor slabs. Due to the heavy weight of the prefabricated floor slabs, it is inconvenient for construction workers to move the prefabricated floor slabs during the adjustment process, and deviations are prone to occur during the positioning and alignment process. The joints are prone to uneven gaps, which reduces shear resistance and increases the risk of leakage. In the long run, it may cause steel corrosion and concrete peeling, increasing the difficulty of later repairs and inconvenience for users. Summary of the invention

[0004] The present invention provides an assembled prefabricated floor slab to solve the problem that most of the existing assembled floor slabs are composed of a combination of steel bars and concrete, and have both high bearing capacity and earthquake resistance. During the installation process, the prefabricated floor slab is generally hoisted to the top of the building by a crane, and the prefabricated floor slab is adjusted and installed by construction workers below. After the crane hoists the floor slab to the top of the building, the construction workers are required to manually align the prefabricated floor slab with the corresponding prefabricated floor slab. Due to the heavy weight of the prefabricated floor slab, it is inconvenient for the construction workers to move the prefabricated floor slab during the adjustment process, deviations are prone to occur during the positioning and alignment process, and uneven gaps are easily generated at the joints, which reduces the shear resistance and increases the risk of leakage. In the long term, it may cause steel bar corrosion and concrete spalling, which increases the difficulty of later repair.

[0005] The present invention provides an assembled prefabricated floor slab, comprising a concrete slab main body, a concrete slab cast at the bottom end of the concrete slab main body, longitudinal steel bars installed inside the concrete slab, elbows installed at both ends of the longitudinal steel bars, transverse steel bar frames installed at both ends of the longitudinal steel bars, transverse steel bars installed at the top ends of the longitudinal steel bars, binding heads installed at both ends of the transverse steel bars, first external frame steel bars tied at both ends of the transverse steel bars, connecting heads installed at both ends of the first external frame steel bars, a protective mechanism is provided at the top end of the concrete slab, a positioning plate is cast at the top end of the protective mechanism, second external steel bars are framed at both ends of the positioning plate, connecting steel bars are installed at both ends of the second external steel bars, adjustment mechanisms are installed at both ends of the concrete slab main body, and positioning mechanisms are installed on both sides of the adjustment mechanism.

[0006] Preferably, the protection mechanism comprises a fireproof layer installed on the top of the concrete slab, a heat-insulating layer is installed on the top of the fireproof layer, a sound-insulating layer is installed on the top of the heat-insulating layer, and a waterproof layer is installed on the top of the sound-insulating layer.

[0007] Preferably, a truss steel bar is installed at the top of the positioning plate, reinforcing ribs are installed on both sides of the truss steel bar, a mounting plate is fixed to the bottom end of the truss steel bar, the internal thread of the mounting plate is connected with a positioning screw, and a concrete layer is poured at the top of the positioning plate.

[0008] Preferably, the adjustment mechanism comprises a fixed horizontal plate installed at both ends of the concrete enclosure body, one end of the fixed horizontal plate is provided with a socket, the internal thread of the socket is connected with a fixing screw, and a fixed vertical plate is installed on one side of the fixed horizontal plate.

[0009] Preferably, a positioning turntable is installed at the top of the fixed horizontal plate, a rotating rod is installed at the top of the positioning turntable, an adjusting screw is installed at the bottom end of the positioning turntable, a positioning bearing is installed at the bottom end of the adjusting screw, a connecting plate is fixed to the bottom end of the positioning bearing, a connecting cross bar is installed at both ends of the connecting plate, a fixing block is installed at both ends of the connecting cross bar, a connecting shaft is installed at the bottom end of the fixing block, the bottom end of the connecting shaft is connected to a mounting shaft, a transverse adjusting wheel is installed on the outer wall of the mounting shaft, and a limiting sliding groove is opened on one side of the fixed vertical plate.

[0010] Preferably, L-shaped adjustment frames are installed at both ends of the concrete enclosure body, a positioning hole is opened on one side of the L-shaped adjustment frame, the internal thread of the positioning hole is connected with a mounting screw, a longitudinal adjustment wheel is installed at one end of the L-shaped adjustment frame, and an adjustment turntable is installed at the top of the L-shaped adjustment frame.

[0011] Preferably, the positioning mechanism includes a transverse laser locator installed at one end of a fixed horizontal plate, a transverse positioning ring is provided at one end of the fixed horizontal plate away from the transverse laser locator, a positioning slot is provided at one end of the fixed vertical plate, and a positioning protrusion is installed at one end of the fixed vertical plate.

[0012] Preferably, a longitudinal laser locator is installed at one end of the L-shaped adjustment frame, a longitudinal positioning ring is provided at one end of the L-shaped adjustment frame away from the longitudinal laser locator, a groove is provided at one end of the L-shaped adjustment frame, and a convex plate is installed at one end of the L-shaped adjustment frame.

[0013] Preferably, the concrete enclosure body, concrete slab, positioning plate and concrete layer are all concrete structures, and the longitudinal steel bars and transverse steel bars can make the structure of the concrete slab more solid and stable, improve the bearing capacity and extend the service life.

[0014] Preferably, the transverse steel bar frame, the first external frame steel bar and the second external steel bar are extended out of the concrete enclosure body. The transverse steel bar frame, the first external frame steel bar and the second external steel bar do not need to be further tied after the concrete enclosure body is installed, thereby increasing construction efficiency.

[0015] Beneficial effects: 1. The present invention increases the fire resistance, sound insulation, heat preservation and waterproofness of the concrete enclosure body by installing a protective mechanism inside the concrete enclosure body. After the concrete slab is poured, the fireproof layer, heat preservation layer, sound insulation layer and waterproof layer are installed on the top of the concrete slab respectively. The fireproof layer is made of gypsum and cardboard, which releases water vapor to delay the fire when encountering fire, and is used for fire protection of walls or ceilings. The insulation layer material is rock wool board, which is an inorganic A-level non-combustible material with both heat preservation and fireproof properties, and is suitable for building exterior walls and industrial equipment. The sound insulation layer is glass wool, and the fiber structure can effectively absorb sound waves, while taking into account both heat preservation and fireproof properties. The waterproof layer is asphalt roll material, which is water-resistant and corrosion-resistant; 2. When installing the concrete panel body, the present invention uses an adjustment mechanism to adjust and align the left and right positions of the concrete panel. During the installation process, the concrete panel body is hoisted by a crane. After the concrete panel body is moved to the roof by the crane, the construction personnel move the concrete panel body to a suitable installation location. Then, the hook connecting the top of the concrete panel body to the crane is removed. At this time, the horizontal laser locator and the vertical laser locator are opened respectively to observe whether the laser is irradiated into the corresponding horizontal positioning circle and the vertical positioning circle. The position of the concrete panel body is adjusted according to the deviation. When the position of the concrete panel body needs to be adjusted horizontally, the longitudinal adjustment wheel can be moved upward by first rotating the adjustment dials on both sides until the longitudinal adjustment wheel is no longer in contact with the floor. At this time, the horizontal adjustment wheels at both ends will be in contact with the floor. When the concrete panel body is in contact with each other, it is convenient for the user to push the concrete panel body to move. Since the concrete panel body itself is heavy, the concrete panel body can be easily moved for horizontal movement and alignment under the action of multiple sets of horizontal adjustment wheels. When the concrete panel body needs to be moved longitudinally, the horizontal adjustment wheels at both ends can be moved upward by rotating the rotating rod and the positioning turntable, so that the longitudinal adjustment wheels on both sides are in contact with the floor. At this time, the user can easily perform longitudinal adjustment and alignment operations on the concrete panel body. The aligned installation ensures that the prefabricated floor slab fits the supporting structure accurately, avoiding local stress concentration due to misalignment, thereby improving the overall bearing capacity and seismic performance of the floor slab. At the same time, after the prefabricated bottom plate is aligned, the cast-in-place concrete can evenly cover the joint area, enhance the bonding strength of the prefabricated and cast-in-place parts, and achieve a double improvement in rigidity and flatness. 3. When adjusting the concrete enclosure body, the present invention uses a positioning mechanism to adjust and position the concrete enclosure body. Before adjusting the transverse and longitudinal positions of the concrete enclosure body, the transverse laser positioner and the longitudinal laser positioner are opened respectively. When the concrete enclosure body is moved, it is observed whether the lasers of the corresponding transverse laser positioner and the longitudinal laser positioner are shot into the corresponding transverse positioning circle and the longitudinal positioning circle. When the lasers are shot into the corresponding transverse positioning circle and the longitudinal positioning circle, it indicates that the corresponding concrete enclosure body is in an aligned state, the edges of the prefabricated floor slabs are neat and the sizes are uniform. After alignment, they can be directly fixed through reserved holes or flexible connections, which can simplify the node processing process. 4. In the manufacturing process of the present invention, by implanting longitudinal steel bars and transverse steel bars inside the concrete slab, the concrete enclosure body, concrete slab, positioning plate and concrete layer are all concrete structures. The longitudinal steel bars and transverse steel bars can make the structure of the concrete slab more solid and stable, improve the bearing capacity and extend the service life. When the concrete slab is pulled, the longitudinal steel bars and transverse steel bars share the pulling force through the bonding force, effectively inhibiting the cracking of the concrete slab and ensuring the integrity and safety of the structure. At the same time, the longitudinal steel bars and transverse steel bars cooperate with the concrete slab to bear force to form a rigid skeleton, which can evenly transfer the load and reduce stress concentration, improve the stability of the building under dynamic loads such as wind and earthquake, and increase the service strength of the concrete slab; 5. After the present invention is used and installed, there is no need to re-tie the steel bars on the side, which greatly improves the installation efficiency. After the corresponding concrete panel body is aligned and installed, the fixed cross plate and the L-shaped adjustment frame are disassembled by respectively removing the fixing screws and the installation screws. At this time, the steel bars on the four sides of the concrete panel body will be exposed, and the user only needs to tie the corresponding steel bars. The user does not need to tie the side steel bars again, which increases the construction efficiency. The pouring operation can be completed by directly pouring concrete on the four sides of the concrete panel body. The steel bars tied at the joints of the prefabricated panels can fill the joint gaps, and form a continuous force-bearing structure with the cast-in-place concrete, which effectively improves the shear resistance and waterproof performance of the joints.

[0016] The above description is only an overview of the technical solution of the embodiment of the present invention. In order to more clearly understand the technical means of the embodiment of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The figure is a schematic diagram of the structure of an assembled prefabricated floor slab after splicing according to the present invention.

[0019] Figure 2 The figure is a schematic diagram of the overall structure of an assembled prefabricated floor slab of the present invention.

[0020] Figure 3 This is a schematic diagram of the main structure of a concrete enclosure of an assembled prefabricated floor slab of the present invention.

[0021] Figure 4The present invention is a schematic diagram of the internal structure of a concrete enclosure body of an assembled prefabricated floor slab.

[0022] Figure 5 This is a schematic diagram of the internal structure of a concrete slab of an assembled prefabricated floor slab of the present invention.

[0023] Figure 6 The figure is a schematic diagram of the lower end structure of the concrete layer of an assembled prefabricated floor slab of the present invention.

[0024] Figure 7 The present invention is a schematic diagram of the protective mechanism structure of an assembled prefabricated floor.

[0025] Figure 8 This is a schematic diagram of a truss reinforcement installation structure of an assembled prefabricated floor slab of the present invention.

[0026] Fig. 9 The present invention is a schematic diagram of the installation structure of an adjustment mechanism of an assembled prefabricated floor.

[0027] Fig.10 The present invention is a schematic diagram of the structure of an adjustment mechanism of an assembled prefabricated floor.

[0028] Fig.11 It is a schematic diagram of the installation structure of a transverse adjustment wheel of an assembled prefabricated floor slab of the present invention.

[0029] Fig.12 The present invention is a schematic diagram of an adjusting screw installation structure of an assembled prefabricated floor slab.

[0030] Fig.13 The present invention is a schematic diagram of the positioning mechanism structure of an assembled prefabricated floor.

[0031] Fig.14 The figure is a schematic diagram of the longitudinal adjustment wheel structure of an assembled prefabricated floor slab of the present invention.

[0032] Description of reference numerals: 1. Concrete enclosure body; 2. Concrete slab; 3. Longitudinal reinforcement; 4. Elbow; 5. Horizontal reinforcement frame; 6. Binding head; 7. First outer frame reinforcement; 8. Connector; 9. Protection mechanism; 901. Fireproof layer; 902. Insulation layer; 903. Sound insulation layer; 904. Waterproof layer; 10. Positioning plate; 11. Truss reinforcement; 12. Reinforcement ribs; 13. Mounting plate; 14. Positioning screw; 15. Second outer reinforcement; 16. Connecting reinforcement; 17. Concrete layer; 18. Adjustment mechanism; 1801. Fixed horizontal plate; 1802. Socket; 1803. Fixed screw; 1804. Fixed vertical plate; 1805. Positioning turntable; 1806. Turnbar; 1807. Adjustment screw Rod; 1808, positioning bearing; 1809, connecting plate; 1810, connecting cross bar; 1811, fixing block; 1812, connecting shaft; 1813, mounting shaft; 1814, horizontal adjustment wheel; 1815, limiting slide groove; 1816, L-shaped adjustment frame; 1817, positioning hole; 1818, mounting screw; 1819, longitudinal adjustment wheel; 1820, adjusting dial; 19, positioning mechanism; 1901, horizontal laser locator; 1902, horizontal positioning ring; 1903, positioning slot; 1904, positioning convex block; 1905, longitudinal laser locator; 1906, longitudinal positioning ring; 1907, groove; 1908, convex plate; 20, horizontal reinforcement. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" in the specification, claims and accompanying drawings of the present invention and any variations thereof are intended to cover non-exclusive inclusions.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase "embodiments" in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present invention. For example, in the description of the present invention, the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit ​​connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0039] The present invention provides Figure 1-14The assembled prefabricated floor slab shown in the figure comprises a concrete panel body 1, a concrete panel 2 is cast at the bottom end of the concrete panel body 1, a longitudinal steel bar 3 is installed inside the concrete panel 2, elbows 4 are installed at both ends of the longitudinal steel bar 3, transverse steel bar frames 5 are installed at both ends of the longitudinal steel bar 3, transverse steel bars 20 are installed at the top of the longitudinal steel bar 3, binding heads 6 are installed at both ends of the transverse steel bar 20, first external frame steel bars 7 are tied at both ends of the transverse steel bar 20, connecting heads 8 are installed at both ends of the first external frame steel bar 7, a protective mechanism 9 is arranged at the top of the concrete panel 2, a positioning plate 10 is cast at the top of the protective mechanism 9, second external steel bars 15 are framed at both ends of the positioning plate 10, connecting steel bars 16 are installed at both ends of the second external steel bar 15, and the two ends of the concrete panel body 1 are provided with a plurality of connecting steel bars. An adjusting mechanism 18 is installed at the end, and positioning mechanisms 19 are installed on both sides of the adjusting mechanism 18. During the installation process of the present invention, the concrete enclosure body 1 is hoisted by a crane. After the concrete enclosure body 1 is moved to the roof by the crane, the construction personnel move the concrete enclosure body 1 to a suitable installation location, and then remove the hook connected to the crane at the top of the concrete enclosure body 1. At this time, the horizontal laser locator 1901 and the vertical laser locator 1905 are opened respectively to observe whether the laser is irradiated into the corresponding horizontal positioning circle 1902 and the vertical positioning circle 1906, and the position of the concrete enclosure body 1 is adjusted according to the deviation. When the position of the concrete enclosure body 1 needs to be adjusted horizontally, it can be first adjusted by rotating the two The adjusting dial 1820 on the side makes the longitudinal adjusting wheel 1819 move upward until the longitudinal adjusting wheel 1819 is no longer in contact with the floor. At this time, the transverse adjusting wheels 1814 at both ends will be in contact with the floor. At this time, it is convenient for the user to push the concrete enclosure body 1 to move. Since the concrete enclosure body 1 itself is heavy, the concrete enclosure body 1 can be easily moved to align laterally under the action of multiple sets of transverse adjusting wheels 1814. When the concrete enclosure body 1 needs to be moved longitudinally, the transverse adjusting wheels 1814 at both ends can be moved upward by rotating the rotating rod 1806 and the positioning rotating disk 1805, so that the longitudinal adjusting wheels 1819 on both sides are in contact with the floor. At this time, it is convenient for the user to easily align the concrete enclosure The slab body 1 is longitudinally adjusted and aligned to ensure that the prefabricated floor slab is precisely matched with supporting structures such as beams and walls to avoid local stress concentration caused by misalignment, thereby improving the overall bearing capacity and seismic performance of the floor slab. At the same time, after the prefabricated bottom plate is aligned, the cast-in-place concrete can evenly cover the joint area, enhance the bonding strength of the prefabricated and cast-in-place parts, and achieve a dual improvement in rigidity and flatness. Before adjusting the transverse and longitudinal positions of the concrete enclosure body 1, open the transverse laser locator 1901 and the longitudinal laser locator 1905 respectively. When moving the concrete enclosure body 1, observe whether the lasers of the corresponding transverse laser locator 1901 and the longitudinal laser locator 1905 are shot into the corresponding transverse positioning circle 1902 and the longitudinal positioning circle 1906.When the laser is shot into the corresponding transverse positioning circle 1902 and the longitudinal positioning circle 1906, it indicates that the corresponding concrete enclosure body 1 is in an aligned state. The edges of the prefabricated floor slabs are neat and uniform in size. After alignment, they can be directly fixed through reserved holes or flexible connections, which can simplify the node processing process. At the same time, the interior of the concrete enclosure body 1 includes a protective mechanism 9. After the concrete slab 2 is poured, the fireproof layer 901, the thermal insulation layer 902, the sound insulation layer 903 and the waterproof layer 904 are installed on the top of the concrete slab 2 respectively. The fireproof layer 901 is made of gypsum and cardboard, which releases water when it encounters fire. Steam slows down the spread of fire and is used for fire protection of walls or ceilings. The insulation layer 902 is made of rock wool board, which is an inorganic Class A non-combustible material with both thermal insulation and fire resistance, and is suitable for building exterior walls and industrial equipment. The sound insulation layer 903 is glass wool, and its fiber structure can effectively absorb sound waves while taking into account both thermal insulation and fire resistance. The waterproof layer 904 is asphalt roll material, which is water-resistant and corrosion-resistant. By implanting longitudinal steel bars 3 and transverse steel bars 20 inside the concrete slab 2, the concrete enclosure body 1, the concrete slab 2, the positioning plate 10 and the concrete layer 17 are all concrete structures. The longitudinal steel bars 3 and the transverse steel bars 2 0 can make the structure of the concrete slab 2 more solid and stable, improve the bearing capacity, and extend the service life. When the concrete slab 2 is pulled, the longitudinal steel bars 3 and the transverse steel bars 20 share the pulling force through the bonding force, effectively inhibiting the cracking of the concrete slab 2 and ensuring the integrity and safety of the structure. At the same time, the longitudinal steel bars 3 and the transverse steel bars 20 cooperate with the concrete slab 2 to bear the force to form a rigid skeleton, which can evenly transfer the load and reduce stress concentration, improve the stability of the building under dynamic loads such as wind and earthquake, and increase the service strength of the concrete slab 2. After the corresponding concrete enclosure body 1 is aligned and installed, through Remove the fixing screw 1803 and the installation screw 1818 respectively, so as to remove the fixing horizontal plate 1801 and the L-shaped adjustment frame 1816. At this time, the steel bars on the four sides of the concrete enclosure body 1 will be exposed. The user only needs to tie the corresponding steel bars, and the user does not need to tie the side steel bars again, which increases the construction efficiency. The pouring operation can be completed by directly pouring concrete on the four sides of the concrete enclosure body 1. The steel bars tied at the joints of the prefabricated panels can fill the joint gaps and form a continuous force-bearing structure with the cast-in-place concrete, effectively improving the joint shear resistance and waterproof performance.

[0040] The present invention increases the fire resistance, sound insulation, heat preservation and waterproof performance of the concrete enclosure body 1 by installing a protection mechanism 9 inside the concrete enclosure body 1. The protection mechanism 9 includes a fireproof layer 901 installed on the top of the concrete slab 2, a heat preservation layer 902 installed on the top of the fireproof layer 901, a sound insulation layer 903 installed on the top of the heat preservation layer 902, and a waterproof layer 904 installed on the top of the sound insulation layer 903. After the concrete slab 2 is poured, the fireproof layer 901, the heat preservation layer 902, the sound insulation layer 903 and the waterproof layer 904 are installed. The sound insulation layer 903 and the waterproof layer 904 are installed on the top of the concrete slab 2, wherein the fireproof layer 901 is made of gypsum and cardboard, which releases water vapor to slow down the fire when in fire, and is used for wall or ceiling fire protection. The thermal insulation layer 902 is made of rock wool board, which is an inorganic Class A non-combustible material with both thermal insulation and fireproof properties, and is suitable for building exterior walls and industrial equipment. The sound insulation layer 903 is glass wool, and its fiber structure can effectively absorb sound waves while taking into account thermal insulation and fireproof properties. The waterproof layer 904 is asphalt roll material, which is water-resistant and corrosion-resistant.

[0041] When the present solution is in use, the truss steel bars 11 are installed inside the concrete layer 17, and the positioning plate 10 increases the installation stability of the truss steel bars 11. The truss steel bars 11 are installed at the top of the positioning plate 10, and reinforcing ribs 12 are installed on both sides of the truss steel bars 11. The bottom end of the truss steel bars 11 is fixed with a mounting plate 13, and the internal thread of the mounting plate 13 is connected with a positioning screw 14. The top of the positioning plate 10 is poured with a concrete layer 17, wherein the truss steel bars 11 are installed on the top of the positioning plate 10 through the mounting plate 13 and the positioning screw 14, and the positioning plate 10 is made of concrete. Subsequently, the concrete layer 17 is poured on the top of the positioning plate 10, and the truss steel bars 11 are fixed to the top of the positioning plate 10 through the mounting plate 13 and the positioning screw 14. The poured concrete layer 17 makes the truss steel bars 11 more stable, and the truss steel bars 11 can increase the strength of the concrete layer 17.

[0042] When the concrete enclosure body 1 is installed in this solution, the concrete slab 2 is adjusted and aligned to the left and right positions through the adjustment mechanism 18. The adjustment mechanism 18 includes a fixed horizontal plate 1801 installed at both ends of the concrete enclosure body 1. A plug hole 1802 is opened at one end of the fixed horizontal plate 1801. The internal thread of the plug hole 1802 is connected with a fixed screw 1803. A fixed vertical plate 1804 is installed on one side of the fixed horizontal plate 1801. A positioning turntable 1805 is installed on the top of the fixed horizontal plate 1801. A rotating rod 1806 is installed on the top of the positioning turntable 1805. The positioning turntable 1805 An adjusting screw 1807 is installed at the bottom end of the adjusting screw 1807, a positioning bearing 1808 is installed at the bottom end of the positioning bearing 1808, a connecting plate 1809 is fixed to the bottom end of the positioning bearing 1808, connecting cross bars 1810 are installed at both ends of the connecting plate 1809, fixing blocks 1811 are installed at both ends of the connecting cross bars 1810, a connecting shaft 1812 is installed at the bottom end of the fixing block 1811, a mounting shaft 1813 is connected to the bottom end of the connecting shaft 1812, a transverse adjusting wheel 1814 is installed on the outer wall of the mounting shaft 1813, and a limiting sliding groove 1815 is provided on one side of the fixed vertical plate 1804.L-shaped adjustment frames 1816 are installed at both ends of the concrete enclosure body 1, a positioning hole 1817 is opened on one side of the L-shaped adjustment frame 1816, and the internal thread of the positioning hole 1817 is connected to a mounting screw 1818, a longitudinal adjustment wheel 1819 is installed at one end of the L-shaped adjustment frame 1816, and an adjustment dial 1820 is installed on the top of the L-shaped adjustment frame 1816. During the installation process, the concrete enclosure body 1 is hoisted by a crane. When the concrete enclosure body 1 is moved to the roof by the crane, the construction personnel move the concrete The earth panel body 1 is moved to a suitable installation location, and then the hook connected to the crane at the top of the concrete panel body 1 is removed. At this time, the horizontal laser locator 1901 and the vertical laser locator 1905 are opened respectively to observe whether the laser is irradiated into the corresponding horizontal positioning circle 1902 and the vertical positioning circle 1906, and the position of the concrete panel body 1 is adjusted according to the deviation. When the position of the concrete panel body 1 needs to be adjusted horizontally, the longitudinal adjustment wheel 1819 can be moved upward by first rotating the adjustment dials 1820 on both sides until the longitudinal adjustment wheel 1819 is not in contact with the floor. At this time, the horizontal adjustment wheels 1814 at both ends will contact with the floor, and it is convenient for the user to push the concrete panel body 1 to move. Since the concrete panel body 1 itself is heavy, under the action of multiple sets of horizontal adjustment wheels 1814, the concrete panel body 1 can be easily moved for horizontal movement and alignment. When the concrete panel body 1 needs to be moved longitudinally, the rotating rod 1806 and the positioning dial 1805 can be rotated to adjust the horizontal adjustment wheels 1819 at both ends. The section wheel 1814 moves upward so that the longitudinal adjustment wheels 1819 on both sides contact the floor. At this time, the user can easily perform longitudinal adjustment and alignment operations on the concrete enclosure body 1. The aligned installation ensures that the precast floor slab fits precisely with the supporting structures such as beams and walls, avoiding local stress concentration due to misalignment, thereby improving the overall bearing capacity and seismic performance of the floor slab. At the same time, after the precast base plate is aligned, the cast-in-place concrete can evenly cover the joint area, enhancing the bonding strength of the precast and cast-in-place parts, and achieving a double increase in stiffness and flatness.

[0043] When the concrete enclosure body 1 is adjusted in this scheme, the concrete enclosure body 1 is adjusted and positioned by the positioning mechanism 19, and the positioning mechanism 19 includes a transverse laser locator 1901 installed at one end of the fixed horizontal plate 1801, a transverse positioning ring 1902 is provided at the end of the fixed horizontal plate 1801 away from the transverse laser locator 1901, a positioning slot 1903 is provided at one end of the fixed vertical plate 1804, a positioning protrusion 1904 is installed at one end of the fixed vertical plate 1804, a longitudinal laser locator 1905 is installed at one end of the L-shaped adjustment frame 1816, a longitudinal positioning ring 1906 is provided at one end of the L-shaped adjustment frame 1816 away from the longitudinal laser locator 1905, and a groove 1906 is provided at one end of the L-shaped adjustment frame 1816. 07. A convex plate 1908 is installed at one end of the L-shaped adjustment frame 1816, wherein before adjusting the transverse and longitudinal positions of the concrete enclosure body 1, by opening the transverse laser locator 1901 and the longitudinal laser locator 1905 respectively, when moving the concrete enclosure body 1, observe whether the lasers of the corresponding transverse laser locator 1901 and the longitudinal laser locator 1905 are shot into the corresponding transverse positioning circle 1902 and the longitudinal positioning circle 1906. When the laser is shot into the corresponding transverse positioning circle 1902 and the longitudinal positioning circle 1906, it indicates that the corresponding concrete enclosure body 1 is in an aligned state, the edges of the prefabricated floor slabs are neat and the sizes are uniform. After alignment, they can be directly fixed through reserved holes or flexible connections, which can simplify the node processing process.

[0044] During the manufacturing process of this solution, the concrete panel body 1, the concrete panel 2, the positioning plate 10 and the concrete layer 17 are all concrete structures by implanting the longitudinal steel bars 3 and the transverse steel bars 20 inside the concrete panel 2. The longitudinal steel bars 3 and the transverse steel bars 20 can make the structure of the concrete panel 2 more solid and stable, improve the bearing capacity and extend the service life. When the concrete panel 2 is subjected to tension, the longitudinal steel bars 3 and the transverse steel bars 20 share the tension through the bonding force, effectively inhibiting the cracking of the concrete panel 2 and ensuring the integrity and safety of the structure. At the same time, the longitudinal steel bars 3 and the transverse steel bars 20 cooperate with the concrete panel 2 to bear force to form a rigid skeleton, which can evenly transfer the load and reduce stress concentration, thereby improving the stability of the building under dynamic loads such as wind and earthquake, and increasing the service strength of the concrete panel 2.

[0045] After the installation is completed, there is no need to tie the steel bars on the side again, which greatly improves the installation efficiency. The horizontal steel bar frame 5, the first external frame steel bar 7 and the second external steel bar 15 are extended out of the concrete enclosure body 1. The horizontal steel bar frame 5, the first external frame steel bar 7 and the second external steel bar 15 do not need to be tied after the installation of the concrete enclosure body 1 is completed, which increases the construction efficiency. After the corresponding concrete enclosure body 1 is aligned and installed, the fixed horizontal plate 1801 and the L-shaped adjustment frame 1816 are disassembled by removing the fixing screws 1803 and the installation screws 1818 respectively. At this time, the steel bars on the four sides of the concrete enclosure body 1 will be exposed. The user only needs to tie the corresponding steel bars. There is no need for the user to tie the side steel bars again, which increases the construction efficiency. The pouring operation can be completed by directly pouring concrete on the four sides of the concrete enclosure body 1. The steel bars tied at the joints of the precast panels can fill the joint gaps, and form a continuous force-bearing structure with the cast-in-place concrete, which effectively improves the shear resistance and waterproof performance of the joints.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled prefabricated floor slab, comprising a concrete panel body (1), characterized in that: A concrete slab (2) is cast at the bottom end of the concrete enclosure body (1), longitudinal steel bars (3) are installed inside the concrete slab (2), elbows (4) are installed at both ends of the longitudinal steel bars (3), transverse steel bars (5) are installed at both ends of the longitudinal steel bars (3), transverse steel bars (20) are installed at the top ends of the longitudinal steel bars (3), binding heads (6) are installed at both ends of the transverse steel bars (20), first external frame steel bars (7) are tied at both ends of the transverse steel bars (20), and connecting heads (8) are installed at both ends of the first external frame steel bars (7), a protective mechanism (9) is provided at the top end of the concrete slab (2), a positioning plate (10) is cast at the top end of the protective mechanism (9), second external steel bars (15) are mounted at both ends of the positioning plate (10), and connecting steel bars (16) are installed at both ends of the second external steel bars (15), and adjustment mechanisms (18) are installed at both ends of the concrete enclosure body (1), and positioning mechanisms (19) are installed on both sides of the adjustment mechanism (18).

2. The prefabricated floor slab according to claim 1, characterized in that: The protection mechanism (9) comprises a fireproof layer (901) installed on the top of the concrete slab (2), a thermal insulation layer (902) installed on the top of the fireproof layer (901), a sound insulation layer (903) installed on the top of the thermal insulation layer (902), and a waterproof layer (904) installed on the top of the sound insulation layer (903).

3. The prefabricated floor slab according to claim 1, characterized in that: A truss steel bar (11) is installed at the top of the positioning plate (10), reinforcing ribs (12) are installed on both sides of the truss steel bar (11), a mounting plate (13) is fixed to the bottom end of the truss steel bar (11), a positioning screw (14) is connected to the internal thread of the mounting plate (13), and a concrete layer (17) is poured at the top of the positioning plate (10).

4. The prefabricated floor slab according to claim 1, characterized in that: The adjustment mechanism (18) comprises a fixed transverse plate (1801) installed at both ends of the concrete enclosure body (1), one end of the fixed transverse plate (1801) is provided with a plug hole (1802), the internal thread of the plug hole (1802) is connected to a fixed screw rod (1803), and one side of the fixed transverse plate (1801) is installed with a fixed vertical plate (1804).

5. The prefabricated floor slab according to claim 4, characterized in that: A positioning turntable (1805) is installed at the top of the fixed horizontal plate (1801), a rotating rod (1806) is installed at the top of the positioning turntable (1805), an adjusting screw (1807) is installed at the bottom of the positioning turntable (1805), a positioning bearing (1808) is installed at the bottom of the adjusting screw (1807), a connecting plate (1809) is fixed at the bottom of the positioning bearing (1808), and two ends of the connecting plate (1809) are connected to the connecting plate (1809). A connecting cross bar (1810) is installed at one end, and fixing blocks (1811) are installed at both ends of the connecting cross bar (1810). A connecting shaft (1812) is installed at the bottom end of the fixing block (1811), and a mounting shaft (1813) is connected to the bottom end of the connecting shaft (1812). A transverse adjustment wheel (1814) is installed on the outer wall of the mounting shaft (1813), and a limiting sliding groove (1815) is provided on one side of the fixed vertical plate (1804).

6. The prefabricated floor slab according to claim 1, characterized in that: L-shaped adjustment frames (1816) are installed at both ends of the concrete enclosure body (1), a positioning hole (1817) is opened on one side of the L-shaped adjustment frame (1816), the internal thread of the positioning hole (1817) is connected to a mounting screw (1818), a longitudinal adjustment wheel (1819) is installed at one end of the L-shaped adjustment frame (1816), and an adjustment dial (1820) is installed at the top end of the L-shaped adjustment frame (1816).

7. The assembled prefabricated floor slab according to claim 4, characterized in that: The positioning mechanism (19) comprises a transverse laser locator (1901) mounted on one end of a fixed transverse plate (1801), a transverse positioning ring (1902) is provided at one end of the fixed transverse plate (1801) away from the transverse laser locator (1901), a positioning slot (1903) is provided at one end of the fixed vertical plate (1804), and a positioning protrusion (1904) is installed at one end of the fixed vertical plate (1804).

8. The assembled prefabricated floor slab according to claim 6, characterized in that: A longitudinal laser locator (1905) is installed at one end of the L-shaped adjustment frame (1816), a longitudinal locating ring (1906) is provided at one end of the L-shaped adjustment frame (1816) away from the longitudinal laser locator (1905), a groove (1907) is provided at one end of the L-shaped adjustment frame (1816), and a convex plate (1908) is installed at one end of the L-shaped adjustment frame (1816).

9. The prefabricated floor slab according to claim 1, characterized in that: The concrete enclosure body (1), the concrete slab (2), the positioning plate (10) and the concrete layer (17) are all concrete structures. The longitudinal steel bars (3) and the transverse steel bars (20) can make the structure of the concrete slab (2) more solid and stable, improve the bearing capacity and extend the service life.

10. The prefabricated floor slab according to claim 1, characterized in that: The transverse steel bar frame (5), the first external steel bar frame (7) and the second external steel bar (15) extend out of the concrete enclosure body (1). The transverse steel bar frame (5), the first external steel bar frame (7) and the second external steel bar (15) do not need to be further tied after the concrete enclosure body (1) is installed, thereby increasing construction efficiency.

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