CN212773053U

CN212773053U - Crack-resistant prestressed double-T plate

Info

Publication number: CN212773053U
Application number: CN202020426514.4U
Authority: CN
Inventors: 马延克
Original assignee: Zhejiang Huatai New Material Co ltd
Current assignee: Zhejiang Huatai New Material Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-03-23
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a crack type prestressing force double T board that splits belongs to building technical field, which comprises a housin, the threaded hole is seted up to the casing lateral wall, straw sheet layer inside wall cross arrangement has the tow, and the tow is the metal fiber bundle, casing lateral wall cladding has thermal-insulated heat preservation coating, casing lateral wall set up threaded hole, and the screw hole is seted up when double T board casting, and inside the screw hole runs through housing face and extends to the casing, when needs use the screw to fix whole, the accessible sets up good screw hole in advance, the influence that vibrations that produce produced when can avoiding drilling produced the casing surface, the housing inner side wall cladding has the straw sheet layer, the straw sheet layer is the stopping by sawdust and rice husk, use isocyanate as modified material, make through mixing, the straw panel has intensity height, the product breadth is big, fire prevention, waterproof, Green and environment-friendly, low cost, and realizes resource recycling.

Description

Crack-resistant prestressed double-T plate

Technical Field

The utility model relates to a building technical field especially relates to a crack resistance type prestressing force double T board.

Background

A prefabricated reinforced concrete bearing member combined by plates and beams is composed of a wide panel and two narrow and high ribs. The panel is not only a transverse bearing structure, but also a pressed area of a longitudinal bearing rib. The compression area has a larger section, the neutralization shaft approaches or enters the panel, and the tension main reinforcing steel bar has a larger moment arm. Therefore, the double-T plate has good structural mechanical property, definite force transmission level and simple geometric shape, and is a relatively economic bearing component which can be manufactured into a large span and a large coverage area. In the late 20 th century and 50 s, double-T panels developed in various countries throughout the world. China began to use for factory roofs and floors since 1958. The building member is commonly adopted in the United states in the 60 s and becomes a common building member for building single-layer multi-span industrial factory buildings and multi-layer public and civil buildings. The dual-T plate is adopted in the countries of Canada, Federal Germany, Finland, UK, Japan, Poland Romania and the like, and the Federal Germany also has a complete set of special equipment for manufacturing the dual-T plate.

Patent No. CN108678249A discloses a crack-resistant prestressed double-T plate, which increases the shear resistance and torsion resistance of the end part by thickening the end part of a horizontal top plate, and prevents the crack of the end part of the double-T plate; the shear resistance and the torsion resistance of the end part are further improved through reinforcing steel bars, and the influence of stress in the pouring process is reduced; simple structure, convenient processing and strong applicability.

The double T-plate of this patent also has the following disadvantages: 1. after the double T-shaped plates are provided with the screws, the inserting positions of the screws can generate cracks along with the time, the service life of the whole body is influenced, and when the double T-shaped plates are used for indoor and outdoor partition walls, the double T-shaped plates are required to be subjected to heat insulation and heat preservation independently; 2. the double T-shaped plate has the advantages of heavy weight, low strength, poor heat preservation and sound insulation effects, insufficient toughness, brittleness and easy breakage, and influences the use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a crack resistance type prestressing force double T board aims at improving the practicality and the stability of double T board.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of crack type prestressing force double T board splits, which comprises a housin, the threaded hole is seted up to the casing lateral wall, straw sheet layer inside wall cross arrangement has the tow, and the tow is the metal fiber bundle, casing lateral wall cladding has thermal-insulated heat preservation coating, thermal-insulated heat preservation coating lateral wall cladding has the heat reflection heat insulating coating layer, heat reflection heat insulating coating layer lateral wall cladding has the straw sheet layer.

Optionally, the threaded bore extends through the housing surface into the housing.

Optionally, the inner side wall of the shell is embedded and connected with a steel bar, and the steel bar is in a T shape.

The utility model has the advantages as follows:

1. the outer side wall of the shell is provided with a threaded hole which is arranged in the casting of the double T-shaped plate and extends to the inside of the shell through the surface of the shell, when a screw is needed to fix the whole body, the influence on the surface of the shell caused by vibration generated in drilling can be avoided through the pre-arranged threaded hole, the outer side wall of the shell is coated with a heat insulation coating which is composed of silicate and is a closed mesh structure, the structure can fully store warm air to achieve the heat insulation effect, the heat conductivity coefficient can be reduced through the heat insulation coating to prevent heat from being conducted through the cement plate, the heat insulation of the whole cement plate is realized, the outer side wall of the heat insulation coating is coated with a heat reflection heat insulation coating layer, the heat reflection heat insulation coating layer contains extremely fine ceramic bubbles and has higher reflectivity to sunlight, and the ceramic bubbles are closely arranged to form a complete heat insulation layer after film forming, so that the internal temperature of a coated object can be greatly reduced, energy can be saved by about 40%, heat in environment light can be reflected, the heat can be isolated from penetrating through the cement board, and thermal radiation can be isolated, so that the problems that after the double T-shaped board is provided with the screws, the inserting positions of the screws can generate cracks along with the time lapse, the service life of the whole body is influenced, and when the double T-shaped board is used for an indoor partition wall and an outdoor partition wall, heat insulation and heat preservation treatment are required to be.

2. The straw board layer is wrapped on the inner side wall of the shell, the straw board layer is made of sawdust and rice hulls as filling materials, isocyanate is used as a modified material, the straw board is made by mixing, and has the advantages of being high in strength, large in product breadth, fireproof, waterproof, green and environment-friendly, low in cost, recycling of resources is achieved, fiber bundles are distributed and arranged on the inner side wall of the straw board layer, the fiber bundles have good mechanical properties, the fracture specific strength and the tensile specific modulus are high, bending resistance and good toughness are achieved, the supporting performance and the self strength of the straw board layer are further improved, the overall toughness is sufficient and not prone to fracture, and the problems that the double T-shaped board is heavy in weight, low in strength, poor in heat preservation and sound insulation effects, poor in toughness, fragile and prone to fracture and influences use are solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an overall schematic view of an anti-crack prestressed double-T plate according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a crack-resistant prestressed double-T plate reinforcement according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a crack-resistant prestressed double-T plate coating according to an embodiment of the present invention;

fig. 4 is a schematic view of a crack-resistant prestressed double-T board fiber bundle structure according to an embodiment of the present invention;

in the figure: 1. a housing; 2. a threaded hole; 3. reinforcing steel bars; 4. a heat insulating coating; 5. a heat reflective insulation coating layer; 6. a straw board layer; 7. a fiber bundle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.

A crack-resistant prestressed double T-shaped panel according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 4.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the embodiment of the utility model provides a crack type prestressing force double-T board prevents, including casing 1, threaded hole 2 is seted up to 1 lateral wall of casing, 6 internal lateral wall cross arrangement of straw board have tow 7, and tow 7 is the metal fiber bundle, 1 lateral wall cladding of casing has thermal-insulated heat preservation coating 4, 4 lateral walls cladding of thermal-insulated heat preservation coating have heat reflection heat insulating coating 5, 5 lateral walls cladding of heat reflection heat insulating coating have straw 6 sheet layer.

In the example, the inner side wall of the shell 1 is coated with the straw plate layer 6, the straw plate layer 6 is prepared by mixing sawdust and rice hulls as filling materials and isocyanate as a modified material through a special process, and the straw plate has the characteristics of high strength, large product breadth, fire resistance, water resistance, environmental friendliness and low cost, so that resource recycling is realized.

Referring to fig. 3 and 4, the screw hole 2 extends into the housing 1 through the surface of the housing 1.

For example, when the whole body needs to be fixed by using a screw, the influence of vibration generated during drilling on the surface of the shell 1 can be avoided by the aid of the threaded hole 2 which is formed in advance.

Referring to fig. 1 and 2, a reinforcing steel bar 3 is embedded and connected to an inner side wall of the housing 1, and the reinforcing steel bar 3 is T-shaped.

The example, through T shaped steel muscle 3 structure, stabilize the reinforcement to casing 1 inside whole, promoted holistic support nature.

When the heat insulation and heat preservation double-T-plate shell is used, the threaded hole 2 is formed in the outer side wall of the shell 1, the threaded hole 2 is formed in the double-T-plate shell during casting, the threaded hole 2 penetrates through the surface of the shell 1 and extends into the shell 1, when a screw is needed to fix the whole shell, the threaded hole 2 can be formed in advance, the influence of vibration generated during drilling on the surface of the shell 1 can be avoided, the outer side wall of the shell 1 is coated with the heat insulation and heat preservation coating 4, the heat insulation and heat preservation coating 4 is composed of silicate and is of a closed mesh structure, a heating air can be fully stored to achieve the heat preservation effect, the heat conductivity coefficient can be reduced through the heat insulation and heat preservation coating 4, heat is prevented from conducting through a cement plate, the heat insulation and heat preservation of the whole cement plate are achieved, the outer side wall of the heat insulation and heat preservation coating 4, the straw board has the characteristics of high strength, large breadth, fire resistance, water resistance, environmental friendliness and low cost, realizes resource recycling, is characterized in that the inner side wall of the straw board layer 6 is distributed and arranged with fiber bundles 7, the fiber bundles 7 have good mechanical properties, not only has higher fracture specific strength and tensile specific modulus, but also can resist bending and has good toughness, and further improves the support property and the self strength of the straw board layer 6, so that the whole has enough toughness and is not easy to break.

It should be noted that, the utility model relates to a crack type prestressing force double T board resists, including casing 1, screw hole 2, reinforcing bar 3, thermal-insulated heat preservation coating 4, heat reflection thermal-insulated dope layer 5, straw sheet layer 6, tow 7, the part is the part that general standard spare or technical staff in the field know, and its structure and principle all can learn through the technical manual or learn through conventional experimental method for this technical staff.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a crack type prestressing force double T board, includes casing (1), its characterized in that, threaded hole (2) are seted up to casing (1) lateral wall, casing (1) lateral wall cladding has thermal-insulated heat preservation coating (4), thermal-insulated heat preservation coating (4) lateral wall cladding has heat reflection thermal-insulated dope layer (5), heat reflection thermal-insulated dope layer (5) lateral wall cladding has straw board layer (6), straw board layer (6) inside wall cross arrangement has tow (7), and tow (7) are the metal fiber bundle.

2. Crack-resistant prestressed double-T panel according to claim 1, characterized in that said threaded holes (2) extend through the surface of the shell (1) into the shell (1).

3. The crack-resistant prestressed double-T slab as claimed in claim 1, wherein the steel bars (3) are embedded and connected to the inner side wall of said shell (1), and the steel bars (3) are T-shaped.