KR102056647B1 - Pc floor plate for insulated logistics warehouse and method of making it - Google Patents

Abstract

The present invention relates to a PC floor plate for economical logistics warehouses providing high thermal insulation performance, which is essential for low temperature and frozen warehouses at a low cost, and having excellent durability while providing structural performance to support a large amount of logistics. The PC floor plate comprises: a plate-shaped heat insulating plate; a hollow rod buried material spaced apart at regular intervals on the upper part of the heat insulating plate; a bottom part comprising a concrete floor plate located on the upper part of the insulating plate and the hollow rod buried material to have a flat cross-section, wherein the concrete floor plate stores articles; and a stem formed at regular intervals below the bottom part.

Description

PC floor plate for insulation logistics warehouse and manufacturing method {PC FLOOR PLATE FOR INSULATED LOGISTICS WAREHOUSE AND METHOD OF MAKING IT}

The present invention relates to a PC floor board material for low temperature and refrigerated warehouse, and more specifically, while having a structural performance capable of supporting a large amount of logistics while having a high thermal insulation performance required at a low cost and a frozen warehouse at a low cost. It is about PC floor board material for the freezer warehouse which is superior in the durability, and is economical

Internet commerce using social networks such as the Internet and SNS is becoming more common, and the demand for international logistics is increasing due to the globalization of the economy.Therefore, a lot of efforts are being made to secure logistics competitiveness due to the fierce survival competition of goods sales. This effort has led to a significant increase in logistics warehouses.

The construction of such a warehouse is an important factor in reducing the construction cost through rapid construction as well as structural stability that can load and store a lot of logistics. Therefore, the general warehouse is usually built through the PC method.

On the other hand, logistics warehouses can be divided into room temperature logistics warehouses that do not require large insulation, and frozen and low temperature warehouses that require high insulation due to storage needs (collectively referred to herein as 'insulation logistics warehouses'). have.

Therefore, in the floor board material of the insulated logistics warehouse, the selection of a structure that can reduce the cost of insulation as well as high heat insulation performance is also very important. For this reason, the flat-type hollow PC floor board shown in FIG. It is used.

Hollow PC floor plate material has a hollow portion (1) is formed inside, the weight of the slab is small compared to the height of the slab and has a flat plate shape, the insulation board construction is good, in particular, it is easy to spray work for forming the insulating layer (2). However, such a hollow PC floor board has a problem that it is difficult to use in a large-scale insulation warehouse because it is difficult to load a heavy product because the shear strength is not so large.

While securing the shear strength weakness of the hollow floor board, the rib-type PC floor board as shown in Figure 1 (b) has been developed as applied to the parking lot.

The rib-type PC floor boards can cope with very large loads while complementing the low shear strength of the hollow slab by increasing the number of small stems by extending the continuous shear reinforcement lattice bar 3. As described above, it is common practice in this field that ribbed PC floor boards have a high load bearing capacity and are difficult to be tightly insulated.

It is difficult to attach the insulation board due to the many stems protruding downward, the insulation spraying work is mainly applied, but has a disadvantage that the area to be sprayed is excessive, and the thermal spraying performance is severely degraded.

In addition, due to the characteristics of the thermal spraying work to be constructed in a closed space, dust creates a harmful environment for workers and may cause a fire.

In addition, the rib-type PC flooring material is a structure that is synthesized by topping concrete after being installed, there is a problem that the topping concrete leaks into the space between the stem protruding downward.

In order to solve this problem, a film forming part for closing the end of the space may be formed during the molding of the PC floor plate material, but the formation of such a film part serves to increase the manufacturing cost of the PC floor plate material by making the mold manufacturing cumbersome. .

The present invention is to solve the above-mentioned problems of the prior art, while increasing the heat load of the article significantly high heat insulation and its durability is increased, and the manufacturability in the factory and workability in the field and work safety is improved PC floor boards for logistics warehouse and how to produce them.

According to the most preferred embodiment of the present invention for solving the above problems, a plate-shaped heat insulating plate material, a hollow rod buried material which is spaced apart at regular intervals on the upper portion of the heat insulating plate, and the upper portion of the heat insulating plate and the hollow buried material The bottom surface of the PC floor plate material is made of a concrete floor plate located in the flat flat cross-section, the concrete floor plate is made up of a stem formed at regular intervals on the bottom portion and the bottom of the bottom portion is stored. PC floor board material for insulated logistics warehouse is provided.

In this case, the hollow buried material can be prevented from escaping from the concrete floor plate by making the cross section of the ordinary light narrowing section having an upper width greater than the lower width with respect to the hollow buried material.

In addition, a shear bolt is provided between the stem of the insulation board and the concrete floor plate, and a connection bolt is provided between the insulation board and the hollow landfill material to ensure high integrity of the insulation board, the hollow landfill material and the concrete floor board. can do.

According to another embodiment of the present invention as a method for manufacturing the PC floor board material for the heat-insulated logistics warehouse, (a) a mold consisting of a bottom surface and a border wall corresponding to the width, length and height of the PC floor board material to be produced Preparing a; (b) mounting a heat insulating plate on the bottom of the mold; (c) After the hollow buried material is disposed at regular intervals on the upper surface of the heat insulating plate, the heat insulating plate material and the hollow buried material are integrated with the connecting bolts. Installing the bolt head of the shear bolt to the heat insulating plate so as to protrude upward; (d) installing a lattice member between adjacent buried filler materials and installing a wire mesh on top of the buried filler material; (e) pouring concrete into the mold to form a concrete floor plate; there is provided a method for producing a PC floor board material for heat-insulating logistics warehouse comprising a.

PC floor board material of the present invention, the insulating layer forms a flat flat cross-section provided on the lower surface to improve the workability of the site, the durability of the insulation function is increased, the construction period is shortened because the ceiling insulation treatment work is omitted in the field In addition, the working environment is improved so that there is no risk of harm to worker's health and the occurrence of safety accidents is minimized.

In addition, the PC floor plate material of the present invention, although having a flat flat cross section as described above, by structurally supporting the concrete floor plate with a stem, by optimizing the cross section of the building member, such as a column according to the reduction of self-weight and T-shaped beam It is possible to establish long span according to the structural efficiency of the cross section, and to establish an economical insulation logistics warehouse.

1 is a cross-sectional view showing a floor board material used in the prior art.
Figure 2 is a perspective view showing a PC floor board according to an embodiment of the present invention.
3 is a cross-sectional view of the AA portion of the PC floor board material.
4 is a perspective view of a state in which a lattice member which is a part of the PC floor board member is installed, and a front view of the lattice member.
5 is a cross-sectional view of a process of installing a shear bolt which is a part of the present invention.
6 is a cross-sectional view of the process of fixedly coupling the heat insulating plate member and the hollow buried material of a part of the present invention.
7 is a front view of each embodiment of the connection bolt for fixing the insulation plate and the hollow buried material for bonding.
8 is a cross-sectional view of each process of producing a PC floor board material of the present invention.

Hereinafter, with reference to the accompanying drawings, the most preferred embodiment of the present invention will be described in detail. However, in describing the present invention, when the technical concept of the present invention is obscured or obscured by describing the known configuration in detail, the description of the known configuration will be omitted.

2 is a perspective view of a PC flooring plate 100 according to an embodiment of the present invention, Figure 3 is a cross-sectional view of A-A of FIG.

PC floor plate material 100 of the present invention, which is installed to build a heat insulation logistics warehouse, as shown in Figures 2 and 3, the heat insulating plate 110 located at the bottom, and the heat insulating plate 110 is fixed to the top The hollow buried material 120 provided at intervals, and is formed on the upper and side surfaces of the hollow buried material 120 is made of a concrete floor plate 130 to serve as a structural function of the bottom layer.

Insulation plate 110 is located in the lower part of the building slab to thermally separate the storage space for storing the low-temperature and frozen goods from the external space to maintain the low-temperature and frozen state of the article, the material of the foam polystyrene, urethane foam, Any material can be used as long as it has excellent thermal insulation performance such as urea foam and phenol foam.

When the insulation plate 110 is cut to the required size at the factory, when the concrete floor plate 130 is molded, it is integrated with the concrete floor plate 130 to form an insulation layer for the slab. Therefore, the site does not require a separate work for forming the slab insulation layer, which significantly shortens the construction period for building the insulation logistics warehouse, and is a safety accident often encountered during the insulation work process in the confined space of the conventional site. And factors that harm the health of workers are reduced.

In addition, the heat insulating plate 110 is formed by the bottom surface of the PC floor plate 100 to improve the workability of the site, such as bonding to the vertical member such as the wall and the heat treatment treatment for the joint portion.

The hollow landfill material 120 serves as a formwork for forming the stem 132 on the concrete floor plate 130 having a structural function, thereby enabling a ribbed PC floor board structure to support heavy weight items. The concrete floor plate 130 makes it easy to manufacture.

In addition, the hollow buried material 120 is to fill the gap between the stem 132 of the concrete floor plate 130 so that the heat insulating plate 110 can be used as a plate-shaped of the PC floor plate material 100 as described above The lower surface of the present invention can be formed into a flat surface, and the PC floor plate material 100 of the present invention manufactured in a flat shape can be reduced in weight and the amount of concrete poured.

In addition, the hollow buried material 120 serves to anchor the heat insulating plate 110 so as not to be separated from the PC floor plate 100 to maintain a high heat insulating performance for a long time to increase the durability of the heat insulating plate (110).

Such a multi-function hollow buried material 120 is sufficient if it is cheap and light material, it is preferable to use a material of the material that can support the heat insulating plate 110 to have a heat insulating performance, for example, styrofoam is used Can be.

The hollow landfill material 120 is installed a plurality of spaced apart at regular intervals on the upper portion of the heat insulating plate 110, the separation space formed by this is a space in which the stem 132 of the concrete floor plate 130 is formed do.

At this time, the hollow buried material 120 may have a cross section of the upper light lower narrowing the upper width (L1) than the lower width (L2). The cross section of the upper and lower straits of the hollow buried material 120 is to allow the stem 132, which has been cured, to bury the hollow buried material 120 while having a cross section of the upper sloping light in the opposite direction. The hollow buried material 120 for fixing the 110 does not have any room to be separated from the concrete floor plate 130 even without a separate fixing means.

In addition, both sides of the hollow buried material 120 may be further provided with the concave-convex (121) as shown in Figure 5 (a). The unevenness 121 widens the adhesive area with the stem 132 of the concrete floor plate 130 to ensure greater unity therebetween.

The concrete floor plate 130 positioned on the upper portion of the insulation plate 110 and the hollow buried material 120 is spaced apart at regular intervals from the bottom portion 131 and the bottom portion of the bottom portion 131 on which the storage items are placed. By making the stem 132 is formed, it becomes a structure of the rib-type PC floor board material 100 having a high bearing force.

Lattice member 160 is embedded in the stem 132. Figure 4 (a) is a general view of the PC floor plate material 100 of the present invention in which the lattice member 160 is installed, Figure 4 (b) shows the lattice member 160.

The lattice member 160 includes a lower reinforcing bar 161 located under the stem 132, an upper reinforcing bar 162 located directly above the lower reinforcing bar 161, and an upper reinforcing bar 162 and a lower reinforcing bar 161. ) Is made of a lattice muscle 163 to maintain the spacing between them. The lattice root 163 is configured in the shape of a triangular cross-section with a pointed upper part, and a part of the upper part protrudes from the upper surface of the concrete floor plate 130, and serves as a bilateral ring for transporting, and to the topping concrete being poured in the field. It acts as a shear connector.

The wire mesh 164 may be further embedded in the bottom portion 131. The wire mesh 164 prevents the crack of the concrete floor plate 130 that may occur due to the temperature change.

A shear bolt 140 may be further provided between the heat insulating plate 110 and the stem 132 of the concrete bottom plate 130 to ensure high integrity thereof. The shear bolt 140 is composed of a bolt head 141 and a threaded portion 143 formed on the lower portion.

5 is a heat insulating plate 130 during the process of manufacturing the PC floor plate material 100 of the present invention so that the shear bolt 140 is provided between the heat insulating plate material 110 and the stem 132 of the concrete floor plate 130. It shows the process of installing the shear bolt 140 in. That is, the shear bolt 140 is pre-installed in the heat insulating plate 110 so that the bolt head 141 protrudes upwards, and then to pour the concrete for the construction of the concrete floor plate 130, the heat insulating plate 110 ) Is naturally integrated with the stem 132 of the concrete floor plate 130 via the shear bolt 140.

In this case, the bolt head 141 may have a spacer function for the lower reinforcing bar 161 of the lattice member 160 by allowing the rebar to be mounted such as to concave as shown in FIG. have.

FIG. 6 is a cross-sectional view of each embodiment of a method of fixedly coupling the heat insulating plate 110 and the hollow buried material 120, and FIG. 7 shows the heat insulating plate 110 and the hollow buried material 120. Front view showing each embodiment of the connecting bolt 150 which is one of the means for fixed coupling.

The fixed coupling of the heat insulating plate material 110 and the hollow buried material 120 of the present invention can be fixed by an adhesive, but preferably fixed by using a connection bolt 150.

As shown in FIG. 7, the connection bolt 150 is formed around the bolt head 151, a body portion 152 formed below the bolt head 151, and the body portion 152. It consists of a screw part 153.

As shown in FIG. 6 (a), the connecting bolt 150 enters the upper portion of the hollow filling member 120 and is fixed to the joint portion of the hollow filling member 120 and the heat insulating plate 110. The hollow buried material 120 and the heat insulating plate 110 are integrated.

At this time, the connection bolt 150 is formed by the circumference (D2) of the screw portion 153 and the circumference (D1) of the bolt head 151 larger than the circumference of the body portion 152 to insulate the hollow buried material (120). Anchor action of the connection bolt 150 for the plate 110 may be increased.

In addition, the screw portion 153 may be formed in the entire body portion 152, but preferably to be formed only in the lower portion of the body portion 152 only for the heat insulating plate 110, or with the heat insulating plate 110 It is to be screwed on a portion of the hollow landfill material 120.

In another embodiment, as shown in (b) of FIG. 6, the hollow buried material 120 may further include an insertion groove 122 having an upper portion.

The insertion groove 122 guides the insertion of the connection bolt 150 to be fixedly installed at the correct position, and facilitates the connection bolt 150 insertion work with the production of the PC floor plate material 100 Save time

In addition, the insertion groove 122 is a composite force between the concrete bottom plate 130 and the hollow buried material 120 by filling a portion of the concrete when placing the concrete for the construction of the concrete bottom plate 130 Increase and prevent the connecting bolt 150 from escaping to the top.

In the embodiment of Figure 6 (b) is used for connecting bolt 150 shown in Figure 7 (a) of the short length of the body portion.

On the contrary, in the embodiment of FIG. 6C, the connection bolt 150 shown in FIG. 7B having a long length of the body portion 152 is used.

6 (b) shows that the connection bolt 150 is connected between the hollow buried material 120 and the heat insulating plate 110, as well as the heat insulating plate 110 and the concrete floor plate 130. By being directly connected to the fixed, the integrity of the concrete floor plate 130 and the hollow buried material 120 and the heat insulating plate 110 to be greatly improved.

For this purpose, the body portion 152 of the connecting bolt 150 shown in Figure 7 (b) should have a length that the bolt head 151 can be embedded in the concrete floor plate 130. At this time, the bolt head 151 of the connecting bolt 150 protruding to the upper portion of the hollow rod buried material 120 to be embedded in the concrete floor plate 130 is the bolt of the shear bolt 140 shown in Figure 5 (b) It may be formed to be concave like the shape of the head 141 to have a cradle function of the wire mesh 164 embedded in the concrete floor plate 130.

8 is a cross-sectional view of each step of the method for producing a PC floor board member 100 of the present invention.

The manufacturing method of the above (a) preparing the mold 200, (b) seating the heat insulating plate 110 on the bottom surface of the mold 200, (c) hollow on the upper surface of the heat insulating plate 110 Substituting the buried material 120 is installed at regular intervals spaced apart, (d) Installing the lattice member 160, (e) Placing concrete, the details of each of the following Same as

(a) preparing the mold 200 (a) of FIG. 8;

The mold 200 for manufacturing the PC floor board material 100 is prepared. The mold 200 includes a bottom surface and an edge wall corresponding to the width, length, and height of the PC floorboard 100 to be manufactured.

(b) seating the heat insulating plate 110 on the bottom surface of the mold 200 (b) of FIG. 8;

The insulating plate 110 is seated on the entire bottom surface of the mold 200. The insulation plate 110 may be used by joining a plurality of joints according to the scale, but it is preferable to fundamentally eliminate the possibility of thermal bridge phenomenon at the joint by using a single plate having no joint.

c) a step of installing the hollow landfill material 120 spaced apart at regular intervals on the upper surface of the heat insulating plate 110 (c) of Figure 8;

The hollow plate buried material 120 is installed on the upper surface of the heat insulating plate 110 to be integrated. The hollow landfill material 120 is spaced apart at regular intervals, the degree of separation should be consistent with the thickness of the stem 132 of the concrete floor plate 130 set by the structural calculation.

When the arrangement of the hollow rod buried material 120 is completed, the insulation plate 110 and the hollow rod buried material 120 are integrated using the connection bolt 150, in this case, the connection process of the bolt 150. The hollow buried material 120 may be temporarily fixed to the heat insulating plate 110 by using an adhesive or the like when the hollow buried material 120 disposed therein does not move.

A shear bolt 140 is installed at a portion of the upper surface of the insulating plate 110 where the hollow buried material 120 is not installed, that is, a portion where the stem 132 of the concrete floor plate 130 is located. Installation of the shear bolt 140 may be carried out after the seating of the heat insulating plate 110 by the step (b) is completed before the hollow landfill material 120 is disposed.

The installation method of the connection bolt 150 and the shear bolt 140 will be replaced with the contents described with reference to FIGS.

(d) installing the lattice member 160 (d) of FIG. 8;

Between the hollow buried material 120 and the hollow buried material 120 is installed a lattice member 160 manufactured separately. At this time, the lattice root 163 of the lattice member 160 should be sized so that the upper portion thereof can protrude above the upper surface of the concrete bottom plate 130, and the lower reinforcement 161 is a shear bolt installed in the heat insulating plate 110 ( It may be mounted on the bolt head 141 of 140.

When the installation of the lattice member 160 is completed, the wire mesh 164 is installed on the upper portion of the hollow landfill member 120, and the wire mesh 164 may allow the lattice member 160 to shake. .

The wire mesh 164 is spaced apart from the upper surface of the hollow buried material 120 to have a sufficient coating thickness.

(e) pouring concrete of step 8 (e);

When the installation of the lattice member 160 and the wire mesh 164 is completed, the concrete is poured into the mold 200 so that the concrete bottom plate 130 having the stem 132 is formed at the bottom thereof.

When curing of the concrete bottom plate 130 is completed, the mold 200 is removed to have a flat cross-section by the insulating plate 110 of the bottom, while structurally having the advantages of ribbed bottom plate of the present invention The production of the PC floorboard material 100 is completed.

The present invention has been described in detail above with reference to specific embodiments, but the above embodiments are merely examples for easy understanding of the present invention, so that those skilled in the art have the scope of the technical idea of the present invention. It will be apparent that various modifications can be made within the scope of the invention. Therefore, such modifications will be described within the scope of the present invention as described in the claims.

100; PC floor board 110; Insulation board
120; Hollow landfill material 121; Unevenness
122; Insertion groove 130; Concrete floor
131; Bottom 132; Stem
140; Shear bolts 141, 151; Bolt head
143, 153; Threaded portion 150; Connecting bolt
152; Body 160; Lattice member
161; Bottom reinforcing bars 162; Upper rebar
163; Lattice muscle 164; Wire mesh
200; Mold L1; Upper width (landfill for heavy industry)
L2; Lower width (buried material for hollow belt) D1; Bolt head circumference
D2; Thread circumference

Claims (8)

In the PC floor board material 100 for the storage of articles requiring freezing and low temperature,
Hollow landfill material that is spaced apart at regular intervals in the plate-shaped insulation plate 110 and the upper width L1 made the upper width (L1) larger than the lower width (L2) cross section at regular intervals ( 120, and the bottom plate of the PC floor plate material 100 is made of a concrete floor plate 130 located on the upper portion of the heat insulating plate 110 and the hollow buried material 120 to have a flat cross section,
The concrete floor plate 130 is formed with a stem 132 at regular intervals at the bottom of the bottom portion 131 and the bottom portion 131 where the storage items are stacked,
A shear bolt 140 is provided between the heat insulating plate 110 and the stem 132 of the concrete bottom plate 130.
The insulation plate 110 and the hollow buried material 120 is coupled by a bolt head 151 and the connection bolt 150 consisting of a body portion 152 and a screw portion 153 formed around the body portion 152. Being, the hollow landfill material 120 is guided the insertion of the connecting bolt 150, and then the upper side is inserted into the insertion groove 122 is opened so that the concrete can be filled therein heat insulation, characterized in that PC floor boards for logistics warehouse. delete delete The method of claim 1,
The shear bolt 140 is composed of a bolt head 141 and a threaded portion 143 formed at a lower portion thereof, and the bolt head 141 is insulated so that the rebar can be mounted. PC floor board material. delete delete The method of claim 1,
The connection bolt 150 is a PC floor plate material for heat insulation logistics, characterized in that the bolt head 151 is configured to have a length embedded in the concrete floor plate 130. As a method of manufacturing the PC floor board material 100 for insulated logistics warehouse according to claim 1 or 4 or 7,
(A) preparing a mold 200 consisting of a bottom surface and a border wall corresponding to the width, length and height of the PC floor board material 100 to be manufactured;
(b) mounting the heat insulating plate 110 on the bottom surface of the mold 200;
(c) After the hollow landfill material 120 with the insertion groove 122 is disposed on the upper surface of the heat insulating plate 110 spaced at regular intervals, the insulation plate material 110 and the hollow landfill material 120 are connected to each other. Integral to the bolt 150, the heat insulating plate member 150 so that the bolt head 141 of the shear bolt 140 protrudes to the upper portion of the upper surface of the heat insulating plate member 110 is not installed. Installing in the);
(d) installing a lattice member 160 between adjacent buried filler materials 120 and installing a wire mesh 164 on top of the buried filler material 120;
(e) pouring concrete into the mold 200 to form the concrete bottom plate 130 while filling the concrete into the insertion groove 122; of the PC floor board material for heat-insulated logistics, characterized in that it comprises a How to make.

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