CN221143131U - Traceless directional heat expansion and cold contraction resistant structure and concrete slab block thereof - Google Patents

Abstract

The utility model discloses a traceless directional heat expansion and cold contraction resistant structure. The support body is formed by combining two M-shaped plates in a mirror image mode, and the frame body is surrounded outside the support body to play a fixing role. The traceless directional heat expansion and cold contraction resistant structure and the concrete slab thereof have the advantages of simple structure and low cost, the integral rigidity effect of the concrete slab is improved, the service life of the concrete slab is prolonged, and the aesthetic appearance of the smooth and flawless surface of the concrete slab and the social benefit of no harm to the environment are increased.

Description

A seamless directional anti-thermal expansion and contraction structure and its concrete plate

Technical Field

The utility model relates to the technical field of concrete plates, in particular to a traceless directional anti-thermal expansion and contraction structure and a concrete plate thereof.

Background technique

Concrete panels are a type of panel commonly used in construction. They will expand and contract when hot or cold. Therefore, the resistance to thermal expansion and contraction is usually considered in the production of concrete panels. The existing technical solution for resisting thermal expansion and contraction in concrete panels is to leave gaps at a certain distance in the concrete panels and then add elastic fillers. The existing technical solutions have the following defects: 1. The concrete panels separated by gaps lose the overall rigidity effect; 2. The service life of the fillers is short, and it is difficult to replace the fillers, especially in temporary construction in public places, which will affect the passage of surrounding residents; 3. The fillers are generally toxic and harmful chemicals, which will pollute the surrounding environment after being exposed.

Utility Model Content

The utility model aims to provide a traceless directional structure for resisting thermal expansion and contraction and a concrete plate made by using the structure, which has a simple structure and high safety and stability.

One of the technical solutions of the utility model discloses a seamless directional anti-thermal expansion and contraction structure, comprising a support body and a frame body enclosed outside the support body, wherein the support body is composed of two M-shaped plates combined in a mirror image, and the frame body encloses outside the support body to play a fixing role.

Preferably, the frame includes a first steel bar, a second steel bar and a third steel bar, the first steel bar and the third steel bar are respectively arranged on the upper and lower planes of the support body, and the second steel bar is arranged at both ends of the V-shaped side of the support body and is respectively connected to the first steel bar and the third steel bar.

Preferably, a hook is provided at one end of the first steel bar, and hooks are provided at both ends of the second steel bar and the third steel bar.

Preferably, steel bar grooves are provided on the upper and lower planes of the support body for embedding and installing the first and third steel bars, and a limiting structure is provided in the steel bar groove for fixing the steel bar groove so as not to move.

Preferably, the two edges of the M-shape are higher than the height of the V-shaped angle.

The second technical solution of the utility model discloses a concrete slab, which adopts the above-mentioned seamless directional anti-thermal expansion and contraction structure, the center of the support body is filled with a foam layer, and then the overall structure is cast to form a concrete slab.

Preferably, the concrete slab may also be provided with steel bars.

The utility model has a simple structure and low cost. It uses M-shaped slats to set two groups of opposing corner structures in the concrete, providing a space for endogenous thermal expansion and contraction. The hooked steel bars are locked together to form a stable steel structure, providing a strong "fortress" for endogenous thermal expansion and contraction resistance, so that the stress changes of thermal expansion and contraction are released in a directional manner within the range of the "fortress". The utility model improves the overall rigidity effect and service life of the concrete plate, increases the appearance of the smooth and flawless surface of the concrete plate, and has the social benefit of being harmless to the environment.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural schematic diagram 1 of the seamless directional anti-thermal expansion and contraction structure of this embodiment.

FIG. 2 is a schematic structural diagram of the M-type plate of this embodiment.

FIG3 is a schematic structural diagram of the steel bar frame of this embodiment.

In the figure: a support body 1, a frame body 2, an M-shaped plate 11, a foam layer 12, a first steel bar 21, a first hook body 211, a second steel bar 22, a second hook body 221, a third steel bar 23, a third hook body 231, a bolt 24, an edge 111, and a V-shaped angle 112.

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

Embodiment 1: A seamless directional structure for resisting thermal expansion and contraction, as shown in FIGS. 1 to 3, includes:

A support body 1 and a frame body 2 enclosed outside the support body, wherein the support body is formed by two M-shaped plates 11 combined in a mirror image, and the frame body is enclosed outside the support body to play a fixing role.

The frame body of this embodiment includes a first steel bar 21, a second steel bar 22, and a third steel bar 23. The first steel bar and the third steel bar are respectively arranged on the upper and lower planes of the support body, and the second steel bar is arranged at both ends of the V-shaped side of the support body and is respectively connected to the first steel bar and the third steel bar.

In this embodiment, a hook body 211 is disposed at one end of the first steel bar 21 , and a second hook body 221 and a third hook body 231 are disposed at both ends of the second steel bar 22 and the third steel bar 23 , respectively.

In this embodiment, steel bar grooves 113 are provided on the upper and lower planes of the support body for embedding and installing the first and third steel bars, and a limiting structure is provided in the steel bar groove for fixing the steel bar groove so as not to move.

The M-shaped plate of this embodiment is a thin strip of plastic material. The two outer edges 111 of the M-shape are slightly higher than the height of the inner V-shaped corner 112, leaving a proper space for the two corners to face each other.

During production: put two M-shaped strips on a workbench and temporarily close them (two corners face each other at a proper distance), and then temporarily seal the two ends and inject a fluid foam layer 12 into them. After the foam becomes solid, fill the two sides of the two M-shaped empty strips with V-shaped corners to form a whole, and support the M-shaped plastic strips to withstand various stresses when the concrete vibration pump is used. The composite component formed by the entire plastic and foam (hereinafter referred to as the composite component) becomes a buffer zone in the concrete slab to resist thermal expansion and contraction.

A first steel bar (the length of which is extended at both ends to be appropriately longer than the width of the composite member, and is used to hook and pull the concrete slabs on both sides) is placed in the steel bar groove of the lower bottom plate of the composite member.

The second reinforcement is placed outside the two sides of the composite component and within the two limit construction points set on the first reinforcement.

Pass the third steel bar from the steel bar groove of the upper bottom plate of the composite component through the two U-shaped openings above the one-piece hook (one of the limiting structures is blocked by the one-piece hook).

Due to the previous operation, the two limiting points of the first steel bar, one limiting point of the third steel bar, the second steel bar and the composite component are fixed to each other to form three three-dimensional intersections, and the remaining three-dimensional intersection is fixed by other methods.

In this embodiment, the limiting points of the first steel bar and the third steel bar are fixed by bolts 24 .

Embodiment 2 adopts the structure of embodiment 1 that is seamless and directional and resistant to thermal expansion and contraction. The center of the support body is filled with a foam layer, and then the overall structure is poured with a concrete layer to form a concrete slab. During pouring, steel bars can be arranged on the structure by conventional means.

The natural three-dimensional fixing technology designed by the utility model is both practical and labor-saving and material-saving.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (6)

1. The utility model provides a no trace directional heat and cold shrinkage resistant structure, its characterized in that includes the supporter and surrounds the framework outside the supporter, the supporter is mirror image group by two M templates and becomes, and the framework surrounds and plays the fixed action outside the supporter, the framework includes first reinforcing bar, second reinforcing bar, third reinforcing bar, first reinforcing bar, third reinforcing bar set up respectively at the upper and lower plane of supporter, and the second reinforcing bar sets up at supporter V-arrangement side both ends and is connected with first reinforcing bar, third reinforcing bar respectively.

2. The traceless directional expansion and contraction resistant structure according to claim 1, wherein one end of the first steel bar is provided with a hook body, and two ends of the second steel bar and the third steel bar are provided with hook bodies.

3. The traceless directional expansion and contraction resistant structure according to claim 2, wherein a reinforcement groove is formed in the upper and lower planes of the support body, the reinforcement groove is used for embedding and mounting the first and third reinforcements, and a limit structure is arranged in the reinforcement groove and used for fixing the reinforcement groove against movement.

4. A traceless directional thermal expansion and contraction resistant structure according to claim 3 wherein the two sides of the M-shape are higher than the height of the V-shape angle.

5. A concrete slab made of the traceless directional heat expansion and cold contraction resistant structure according to claim 4, wherein the foam layer is filled in the center of the supporting body, and the concrete layer is poured in the whole structure.

6. The concrete slab of claim 5, further comprising reinforcing bars.