CN211396259U

CN211396259U - Concrete T board

Info

Publication number: CN211396259U
Application number: CN201921335230.8U
Authority: CN
Inventors: 宗冉升
Original assignee: Chuzhou Fubang New Building Materials Co ltd
Current assignee: Chuzhou Fubang New Building Materials Co ltd
Priority date: 2019-08-17
Filing date: 2019-08-17
Publication date: 2020-09-01
Anticipated expiration: 2029-08-17

Abstract

The utility model discloses a concrete T board, including concrete T board group, be provided with the coupling assembling that the equidistance distributes on the top outer wall of concrete T board group and concrete T board group includes the concrete T board that the equidistance distributes, concrete T board top is provided with the roof, and the roof is the rectangle structure, set up the equidistance on the top outer wall of roof and be the bloated seam that the fork structure distributes, the bottom outer wall both sides of concrete T board all are provided with the board rib, and are provided with the strengthening rib that the equidistance distributes on the front outer wall of concrete T board. The utility model discloses reduce the risk that large-span superstructure or roof collapsed when the earthquake, improved the anti-seismic performance of structure, construction convenience, easy operation can ensure long-term performance, and environmental protection safety not only keeps warm and insulates against heat effectually, and waterproof crack control convenient to use has excellent wearability and mechanical properties simultaneously, has further prolonged the life of concrete T board.

Description

Concrete T board

Technical Field

The utility model relates to a concrete T board technical field especially relates to a concrete T board.

Background

The prefabricated reinforced concrete bearing member combined by concrete T-shaped plate and beam is formed from wide face plate and two narrow and high ribs, its face plate not only is a transverse bearing structure, but also is a compression zone of longitudinal bearing rib, the cross section of compression zone is relatively large, the neutralization shaft is close to or can be fed into face plate, and the tensile main reinforcing bar has relatively large moment arm, so that the T-shaped plate has good structural mechanical property, clear force-transferring layer and simple geometric form, and can be made into large-span, large-covering area and relatively economic bearing member.

The concrete T-shaped plate in the prior art is poor in heat insulation performance and anti-cracking effect, is particularly not suitable for being used in severe cold areas, is easy to absorb water due to rock wool, lacks certain fireproof and temperature-resistant performance, is poor in use safety, is high in harmfulness, is inconvenient to construct and has large hidden danger of a heat insulation system. Therefore, it is desirable to design a concrete T-plate to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the heat preservation performance that exists among the prior art poor, anti crack effect is poor, especially is unsuitable cold area and uses, and rock wool easily absorbs water, lacks certain fire prevention resistance to temperature performance, and the security of use is relatively poor, and the harm is big, be not convenient for construction, the big shortcoming of heat preservation system hidden danger, and a concrete T board that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a concrete T-shaped plate comprises a concrete T-shaped plate group, connecting components which are distributed equidistantly are arranged on the outer wall of the top of the concrete T-shaped plate group, the concrete T-shaped plate group comprises concrete T-shaped plates which are distributed equidistantly, a concrete top plate is arranged on the top of the concrete T-shaped plate, the concrete top plate is of a rectangular structure, the outer wall of the top of the concrete top plate is provided with expansion joints which are distributed in a cross structure at equal intervals, the two sides of the outer wall of the bottom of the concrete T-shaped plate are provided with plate ribs, reinforcing ribs are distributed on the outer wall of the front face of the concrete T-shaped plate at equal intervals, a heat insulation layer is arranged on the top of the outer wall of the front face of the concrete T-shaped plate, and the concrete T board is provided with the flame retardant coating on being close to the below outer wall of thermal-insulated heat preservation, the bottom outer wall of concrete T board is U type structure, and coupling assembling fixed mounting is on the outer wall of concrete T board top both sides.

The key concept of the technical scheme is as follows: the risk of collapse of the large-span floor or roof in the earthquake is reduced, the earthquake-resistant performance of the structure is improved, the construction is convenient, and the operation is simple; the long-term service performance can be ensured, the environment is protected, the heat insulation effect is good, and the waterproof and anti-cracking effects are convenient to use; the temperature resistance of the interior is improved.

Further, coupling assembling includes the holding tank, the holding tank is seted up on the top outer wall both sides of concrete roof, and the inside fixed joint of holding tank has the connecting plate.

Further, the connecting plate includes the concrete, the concrete is rectangle massive structure, and the inside of concrete is provided with the reinforcing bar that the equidistance distributes, and the inside of concrete is provided with the connecting piece that the equidistance distributes, the connecting piece is U type structure, and has seted up the thread tooth on the connecting piece is located the outer wall of concrete below.

Furthermore, the heat insulation layer comprises polymer anti-crack mortar and glass wool, the polymer anti-crack mortar and the glass wool are distributed in a sandwich structure, and the thickness of the polymer anti-crack mortar is consistent with that of the glass wool.

Further, fixed mounting has the polyurethane board on the top both sides inner wall of concrete T board, and is provided with the flame retardant coating on the both sides inner wall that the concrete T board is close to the polyurethane board below.

Further, the fire-proof layer comprises a fire-proof coating layer, a waterproof putty layer is arranged on the outer wall of the upper portion of the fire-proof coating layer, a glass fiber net is arranged on the outer wall of the upper portion of the waterproof putty layer, and finishing mortar is arranged above the glass fiber net.

The utility model has the advantages that:

1. through the coupling assembling that sets up, when the in-process of holding tank is pegged graft to the connecting piece, the connecting plate imbeds completely to the inside of holding tank, reliably connects adjacent prestressed concrete T board, forms the wholeness superstructure and the room lid that can transmit the horizontal force and be seismic force specially, reduces the risk that long-span superstructure or room lid collapse when the earthquake, has improved the anti-seismic performance of structure, and convenient construction, easy operation.

2. Through the heat insulation layer who sets up, the inside central authorities of heat insulation layer are filled there is the shaping good, bulk density is little, thermal conductivity , heat preservation and heat insulation, it is good to inhale sound performance, it is corrosion-resistant, the glass cotton of chemical stability is cotton, the cotton outside parcel of glass has polymer anti-crack mortar simultaneously, for polymer anti-crack mortar also name heat preservation top facing mortar, the mortar of plastering, for the heat retaining heat preservation of effectual solution, it is thermal-insulated, the wind-pressure resistance, fire prevention, it is resistant to wait, it is good to have flexibility simultaneously, product bonding strength is high, waterproof anti-crack is effectual, high durability and convenient operation, advantages such as easy control, long-term service performance can be ensured, environmental protection and safety, not only heat preservation and heat insulation are effectual, waterproof anti-.

3. Through the flame retardant coating that sets up, fire retardant coating can effectively play the fire prevention effect, can reduce by the surperficial flammability of coating material, retard stretching rapidly of conflagration, water-fast putty layer has excellent durability, can strengthen inside degree of adhesion, the sexual valence relative altitude, the glass fiber net that sets up promotes inside bonding strength with the rendering coat mortar, promote inside resistance to temperature performance, it is big to have the elongation through the polyurethane board of inside setting, the hardness range is wide, the formulation control range is big, excellent wearability and mechanical properties have, be used for the inside heat preservation of T board to use.

Drawings

Fig. 1 is a schematic structural view of a concrete T-plate provided by the present invention;

fig. 2 is a schematic structural view of a connection assembly of a concrete T-plate provided by the present invention;

fig. 3 is a schematic structural view of a connecting plate of a concrete T-plate according to the present invention;

FIG. 4 is a schematic structural view of a heat insulating layer of a concrete T-shaped slab of the present invention;

fig. 5 is a schematic cross-sectional structure view of a concrete T-plate provided by the present invention;

fig. 6 is a schematic structural view of a fire-proof layer of a concrete T-plate provided by the utility model.

In the figure: the concrete T-board assembly comprises 1 concrete T-board assembly, 2 concrete T-board assembly, 3 expansion joints, 4 connecting assemblies, 5 concrete top boards, 6 heat insulation layers, 7 fireproof layers, 8 board ribs, 9 reinforcing ribs, 10 accommodating grooves, 11 connecting boards, 12 concrete, 13 reinforcing steel bars, 14 connecting pieces, 15 thread teeth, 16 polymer anti-cracking mortar, 17 glass wool, 18 polyurethane boards, 19 fireproof coating layers, 20 waterproof putty layers, 21 glass fiber nets and 22 finishing mortar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a concrete T-shaped slab comprises a concrete T-shaped slab set 1, wherein connecting assemblies 4 distributed equidistantly are arranged on the outer wall of the top of the concrete T-shaped slab set 1, the concrete T-shaped slab set 1 comprises concrete T-shaped slabs 2 distributed equidistantly, a concrete top slab 5 is arranged on the top of the concrete T-shaped slab 2, the concrete top slab 5 is in a rectangular structure, expansion joints 3 distributed equidistantly and in a cross-shaped structure are formed on the outer wall of the top of the concrete top slab 5, slab ribs 8 are arranged on both sides of the outer wall of the bottom of the concrete T-shaped slab 2, reinforcing ribs 9 distributed equidistantly are arranged on the outer wall of the front of the concrete T-shaped slab 2, a heat insulation layer 6 is arranged on the top of the outer wall of the front of the concrete T-shaped slab 2, a fire-proof layer 7 is arranged on the outer wall of the lower portion of the concrete T-shaped slab 2, which is, and coupling assembling 4 fixed mounting is on the outer wall of 2 top both sides of concrete T board, and the setting of expansion joint 3 can make cement concrete slab freely extend when the temperature risees, reduces to cause unnecessary harm to concrete roof 1 because of reasons such as weather environment.

As can be seen from the above description, the present invention has the following advantages: the risk of collapse of the large-span floor or roof in the earthquake is reduced, the earthquake-resistant performance of the structure is improved, the construction is convenient, and the operation is simple; the long-term service performance can be ensured, the environment is protected, the heat insulation effect is good, and the waterproof and anti-cracking effects are convenient to use; the temperature resistance of the interior is improved.

Further, coupling assembling 4 includes holding tank 10, holding tank 10 is seted up on the top outer wall both sides of concrete roof 5, and the inside fixed joint of holding tank 10 has connecting plate 11, coupling assembling 4's setting, in-process when holding tank 10 is pegged graft to connecting piece 14, connecting plate 11 imbeds completely to the inside of holding tank 10, reliably connect adjacent prestressed concrete T board 2, form wholeness superstructure and the roof that can transmit the horizontal force and specifically be the earthquake power, reduce the risk that large-span superstructure or roof collapse when the earthquake, the anti-seismic performance of structure has been improved, and is convenient for construction, and the operation is simple.

Further, connecting plate 11 includes concrete 12, concrete 12 is rectangle massive structure, and the inside of concrete 12 is provided with equidistance distribution's reinforcing bar 13, and the inside of concrete 12 is provided with equidistance distribution's connecting piece 14, connecting piece 14 is U type structure, and threaded tooth 15 has been seted up on the outer wall that connecting piece 14 is located concrete 12 below, threaded tooth 15 can make connecting plate 11 more firm fix inside holding tank 10, promote the stability between the adjacent concrete T board.

Furthermore, the heat insulation layer 6 comprises polymer anti-crack mortar 16 and glass wool 17, the polymer anti-crack mortar 16 and the glass wool 17 are distributed in a sandwich structure, the thickness of the polymer anti-crack mortar 16 is consistent with that of the glass wool 17, the heat insulation layer 6 is arranged, the glass wool 17 which is good in forming, small in volume density, low in heat conductivity , heat-insulating, sound-absorbing, corrosion-resistant and stable in chemical performance is filled in the center of the interior of the heat insulation layer 6, meanwhile, the polymer anti-crack mortar 16 wraps the outer side of the glass wool 17, the polymer anti-crack mortar 16 is named as heat-insulating cover facing mortar and plastering mortar, the problems of heat insulation, wind pressure resistance, fire resistance and weather resistance of heat preservation are effectively solved, meanwhile, the heat insulation layer has the advantages of good flexibility, high product bonding strength, good waterproof and anti-crack effects, convenience in operation, easiness in, not only the heat preservation and insulation effect is good, but also the waterproof and anti-cracking effects are convenient to use, and the service life of the concrete T-shaped plate 2 is further prolonged.

Furthermore, the polyurethane boards 18 are fixedly installed on the inner walls of the two sides of the top of the concrete T board 2, the fireproof layers 7 are arranged on the inner walls of the two sides of the concrete T board 2, which are close to the lower portion of the polyurethane boards 18, and due to the arrangement of the polyurethane boards 18, the polyurethane boards 18 are large in elongation, wide in hardness range, large in formula adjustment range, excellent in wear resistance and mechanical property, and used for heat preservation inside the T board.

Further, flame retardant coating 7 includes fire retardant coating layer 19, be provided with waterproof putty layer 20 on the top outer wall of fire retardant coating layer 19, and be provided with glass fiber net 21 on the top outer wall of waterproof putty layer 20, glass fiber net 21's top is provided with rendering coat mortar 22, fire retardant coating 7's setting, fire retardant coating 19 can effectively play the fire prevention effect, can reduce by the flammability on coating material surface, retard spreading rapidly of conflagration, waterproof putty layer 20 has excellent durability, can strengthen inside degree of adhesion, the sexual valence relative altitude, the inside bonding strength is promoted with rendering coat mortar 22 to the glass fiber net 21 that sets up, promote inside resistance to temperature performance.

By adopting the connecting assembly, when the connecting piece is inserted into the accommodating groove, the connecting plate is completely embedded into the accommodating groove, and the adjacent prestressed concrete T-shaped plates are reliably connected to form an integral floor system and a roof which can transmit horizontal force, particularly earthquake force, so that the risk of collapse of a large-span floor system or a roof during earthquake is reduced, the earthquake-resistant performance of the structure is improved, the construction is convenient, and the operation is simple; the thermal insulation layer is arranged, the center in the thermal insulation layer is filled with glass wool which is good in forming, small in volume density, in thermal conductivity, thermal insulation, sound absorption, corrosion resistance and stable in chemical property, meanwhile, polymer anti-cracking mortar wraps the outer side of the glass wool, the polymer anti-cracking mortar is named as thermal insulation cover facing mortar and plastering mortar, the thermal insulation, wind pressure resistance, fire resistance and weather resistance of thermal insulation are effectively achieved, meanwhile, the thermal insulation layer has the advantages of being good in flexibility, high in product bonding strength, good in waterproof and anti-cracking effect, convenient to operate, easy to control and the like, long-term use performance can be guaranteed, environmental protection and safety are achieved, the thermal insulation effect is good, meanwhile, water resistance and anti-cracking are convenient to use, and the service; the flame retardant coating that sets up, fire-proof coating can effectively play the fire prevention effect, can reduce by the surperficial flammability of coating material, retard spreading rapidly of conflagration, water-fast putty layer has excellent durability, can strengthen inside degree of adhesion, the sexual valence relative altitude, the glass fiber net that sets up promotes inside bonding strength with the rendering coat mortar, promote inside resistance to temperature performance, it is big to have the elongation through the polyurethane board of inside setting, the hardness range is wide, the formulation control range is big, has excellent wearability and mechanical properties, be used for the inside heat preservation of T board to use.

In the following, some preferred embodiments or application examples are listed to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention to the prior art:

example 1

A concrete T-shaped plate comprises a concrete T-shaped plate group 1, connecting assemblies 4 distributed equidistantly are arranged on the outer wall of the top of the concrete T-shaped plate group 1, the concrete T-shaped plate group 1 comprises concrete T-shaped plates 2 distributed equidistantly, a concrete top plate 5 is arranged on the top of each concrete T-shaped plate 2, each concrete top plate 5 is of a rectangular structure, expansion joints 3 distributed equidistantly in a cross-shaped structure are formed in the outer wall of the top of each concrete top plate 5, plate ribs 8 are arranged on two sides of the outer wall of the bottom of each concrete T-shaped plate 2, reinforcing ribs 9 distributed equidistantly are arranged on the outer wall of the front of each concrete T-shaped plate 2, a heat-insulating layer 6 is arranged on the top of the outer wall of the front of each concrete T-shaped plate 2, a fireproof layer 7 is arranged on the outer wall of the lower portion, close to the heat-insulating layer 6, of each concrete T-shaped plate 2, the connecting assemblies 4 are fixedly arranged on the outer, the expansion joint 3 can enable the cement concrete slab to freely extend when the temperature rises, and unnecessary damage to the concrete top plate 1 caused by weather environment and other reasons is reduced.

The connecting assembly 4 comprises a containing groove 10, the containing groove 10 is formed in two sides of the outer wall of the top of the concrete top plate 5, a connecting plate 11 is fixedly clamped in the containing groove 10, the connecting assembly 4 is arranged, when the connecting piece 14 is inserted into the containing groove 10, the connecting plate 11 is completely embedded into the containing groove 10, and the adjacent prestressed concrete T-shaped plates 2 are reliably connected to form an integral floor system and a roof system which can transmit horizontal force, particularly earthquake force, so that the risk of collapse of a large-span floor system or a roof system in an earthquake is reduced, the earthquake resistance of the structure is improved, construction is convenient, and operation is simple; the connecting plate 11 comprises concrete 12, the concrete 12 is of a rectangular block structure, reinforcing steel bars 13 are arranged inside the concrete 12 and distributed equidistantly, connecting pieces 14 are arranged inside the concrete 12 and distributed equidistantly, the connecting pieces 14 are of a U-shaped structure, thread teeth 15 are arranged on the outer wall, located below the concrete 12, of the connecting pieces 14, the thread teeth 15 can enable the connecting plate 11 to be fixed inside the accommodating groove 10 more stably, and stability between adjacent concrete T plates is improved; the heat insulation layer 6 comprises polymer anti-crack mortar 16 and glass wool 17, the polymer anti-crack mortar 16 and the glass wool 17 are distributed in a sandwich structure, the thickness of the polymer anti-crack mortar 16 is consistent with that of the glass wool 17, the heat insulation layer 6 is arranged, the glass wool 17 which is good in forming, small in volume density, small in heat conductivity , good in heat insulation, sound absorption performance, corrosion resistance and stable in chemical performance is filled in the center of the interior of the heat insulation layer 6, meanwhile, the polymer anti-crack mortar 16 wraps the outer side of the glass wool 17, and is the polymer anti-crack mortar 16, namely heat insulation cover coat mortar and plastering mortar, so that the problems of heat insulation, wind pressure resistance, fire resistance and weather resistance of heat preservation are effectively solved, meanwhile, the heat insulation layer has the advantages of good flexibility, high product bonding strength, good waterproof and anti-crack effects, convenience in operation, easiness in control and, meanwhile, the waterproof and anti-cracking effects are convenient to use, and the service life of the concrete T plate 2 is further prolonged; the polyurethane boards 18 are fixedly arranged on the inner walls of the two sides of the top of the concrete T board 2, the fireproof layers 7 are arranged on the inner walls of the two sides of the concrete T board 2, which are close to the lower part of the polyurethane boards 18, and the polyurethane boards 18 are arranged, so that the polyurethane boards 18 have the advantages of large elongation, wide hardness range, large formula adjustment range, excellent wear resistance and excellent mechanical property, and are used for heat preservation inside the T board; the flame retardant coating 7 comprises a flame retardant coating layer 19, a waterproof putty layer 20 is arranged on the outer wall of the upper portion of the flame retardant coating layer 19, a glass fiber net 21 is arranged on the outer wall of the upper portion of the waterproof putty layer 20, a plastering mortar 22 is arranged above the glass fiber net 21, the flame retardant coating 7 is arranged, the flame retardant coating 19 can effectively play a role in fire prevention, the flammability of the surface of a coated material can be reduced, the fire is retarded to rapidly spread, the waterproof putty layer 20 has excellent durability, the internal bonding degree can be enhanced, the cost performance is high, the internal bonding strength is improved by the arranged glass fiber net 21 and the plastering mortar 22, and the internal temperature resistance is improved.

The working principle is as follows: when the concrete T-shaped plate is used, an operator firstly inserts the connecting piece 14 into the accommodating groove 10, the connecting plate 11 is completely embedded into the accommodating groove 10 and then pours and fixes the adjacent prestressed concrete T-shaped plates 2, so that an integral floor system and a roof which can transmit horizontal force, particularly earthquake force, are formed, the risk of collapse of a large-span floor system or roof during earthquake is reduced, the earthquake-resistant performance of the structure is improved, the construction is convenient and the operation is simple, the inner cloth of the heat-insulating layer 6 is respectively provided with the polymer anti-cracking mortar 16 and the glass wool 17, the long-term use performance can be ensured, the environmental protection and safety are realized, the heat-insulating effect is good, meanwhile, the water and crack resistance are convenient to use, the service life of the concrete T-shaped plate is further prolonged, meanwhile, the fireproof coating 19 can effectively play a fireproof role due to the arrangement of the fireproof layer 7, and the flammability on, The rapid fire spreading is retarded, the waterproof putty layer 20 has excellent durability, the internal bonding degree can be enhanced, the cost performance is high, the glass fiber net 21 and the finishing mortar 22 improve the internal bonding strength and the internal temperature resistance, the polyurethane plate 18 arranged in the interior has the advantages of large elongation, wide hardness range, large formula adjustment range, excellent wear resistance and mechanical property, and is used for the internal heat preservation of the T plate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A concrete T plate comprises a concrete T plate group (1) and is characterized in that connecting assemblies (4) distributed equidistantly are arranged on the outer wall of the top of the concrete T plate group (1), the concrete T plate group (1) comprises concrete T plates (2) distributed equidistantly, a concrete top plate (5) is arranged at the top of the concrete T plate (2), the concrete top plate (5) is of a rectangular structure, expansion joints (3) distributed equidistantly and in a crossed structure are arranged on the outer wall of the top of the concrete top plate (5), plate ribs (8) are arranged on two sides of the outer wall of the bottom of the concrete T plate (2), reinforcing ribs (9) distributed equidistantly are arranged on the outer wall of the front of the concrete T plate (2), a heat-insulating layer (6) is arranged on the top of the outer wall of the front of the concrete T plate (2), and a fireproof layer (7) is arranged on the outer wall of the lower portion, close to the heat-insulating layer (6), of the concrete T plate (2), the outer wall of the bottom of the concrete T plate (2) is of a U-shaped structure, and the connecting assemblies (4) are fixedly installed on the outer walls of the two sides of the top of the concrete T plate (2).

2. A concrete T-panel according to claim 1, characterized in that said connection assembly (4) comprises a housing groove (10), said housing groove (10) being provided on both sides of the top outer wall of the concrete top panel (5), and the interior of the housing groove (10) being fixedly clamped with a connection plate (11).

3. The concrete T-shaped plate according to claim 2, characterized in that the connecting plate (11) comprises concrete (12), the concrete (12) is in a rectangular block structure, the concrete (12) is internally provided with reinforcing steel bars (13) which are distributed equidistantly, the concrete (12) is internally provided with connecting pieces (14) which are distributed equidistantly, the connecting pieces (14) are in a U-shaped structure, and the outer wall of the connecting piece (14) below the concrete (12) is provided with thread teeth (15).

4. The concrete T-shaped board according to claim 1, characterized in that the thermal insulation layer (6) comprises polymer anti-crack mortar (16) and glass wool (17), the polymer anti-crack mortar (16) and the glass wool (17) are distributed in a sandwich structure, and the thickness of the polymer anti-crack mortar (16) is consistent with that of the glass wool (17).

5. The concrete T-shaped board as claimed in claim 1, characterized in that the inner walls of the two sides of the top of the concrete T-shaped board (2) are fixedly provided with polyurethane boards (18), and the inner walls of the two sides of the concrete T-shaped board (2) close to the lower part of the polyurethane boards (18) are provided with fire-proof layers (7).

6. The concrete T-shaped board according to claim 5, wherein the fire-proof layer (7) comprises a fire-proof paint layer (19), a waterproof putty layer (20) is arranged on the upper outer wall of the fire-proof paint layer (19), a glass fiber net (21) is arranged on the upper outer wall of the waterproof putty layer (20), and finishing mortar (22) is arranged above the glass fiber net (21).