KR102261170B1 - Floor structure of movable building modules and the construction method thereof - Google Patents

Abstract

The present invention relates to a bottom plate structure of movable building modules which modularizes a movable building to construct the movable building by assembly. The bottom plate structure comprises: a lightweight aerated concrete panel placed on the upper surface of a beam member; and a steel plate placed on the upper surface of the lightweight aerated concrete panel. The bottom plate structure is fixed and installed on the beam member by a fastening member. The lightweight aerated concrete panel is installed in a non-composite structure with the steel plate to be prevented from being restricted by the beam member and the steel plate to be slid and moved in accordance with temperature expansion and contraction. The bottom plate structure is formed by a method comprising: (a) a step of mounting a lightweight aerated concrete panel on the upper surface of a beam member; (b) a step of stacking a steel plate with a welding hole on the upper surface of the lightweight aerated concrete panel; (c) a step of fixing a fastening member on the beam member to allow the upper end including a head portion to protrude into the welding hole while penetrating the welding hole and the lightweight aerated concrete panel to be screw-coupled to the beam member; (d) a step of welding the upper end of the fastening member on the steel plate to fix the fastening member on the steel plate; and (e) a step of flattening the upper surface of the steel plate.

Description

FLOOR STRUCTURE OF MOVABLE BUILDING MODULES AND THE CONSTRUCTION METHOD THEREOF

The present invention relates to a module of a temporary building used temporarily for a certain period, and more particularly, to a floor plate structure of a movable building module that is used for a certain period by prefabricating the temporary building by modularizing it.

In the case of demolishing an old building in use and building a new one, a space that can be used until the new building is completed may be required. In this case, a temporary building is constructed and used.

For example, there are dozens of D-grade and E-grade school buildings that are judged to be structurally hazardous to safety across the country. In such a school building, education must be carried out during the period of reconstruction or repair, so a temporary building is constructed to replace the insufficient educational space.

For these temporary buildings, it is very important to secure constructability, ease of dismantling, and economic feasibility through repeated use. For this purpose, a modular system is mainly used.

Modular system refers to the completion of the construction of a building by combining or stacking these modules after production in a factory with standardized modules, transporting them to the site.

Therefore, during the recent reconstruction of school buildings, it is becoming common to construct temporary buildings using modular containers and use them as temporary classrooms.

However, since construction officials generally prioritize the quality of the main building of the school being reconstructed, they only consider the ease of construction and dismantling of temporary buildings for use as temporary classrooms, but do not fully reflect the convenience of users. .

For example, the container module is manufactured in a factory in a state in which most of the components such as walls and floors are completed in the factory in order to minimize wet construction at the site, and then is transported to the site and installed through a lifting process.

Therefore, the weight reduction of the module is considered as an important factor in consideration of field workability such as transportation and lifting. For this purpose, the container module used as a temporary classroom is made of a plywood structure to reduce weight. Therefore, the floor structure of such a plywood structure significantly lowers the walkability, such as a rattling phenomenon occurs when the students walk.

In order to solve the problem of walkability, floor concrete is poured on site, but such floor concrete pouring not only increases the construction period and cost, but also causes a problem in that the scope of module recycling is reduced.

A floor plate structure of a modular building capable of improving walking while promoting lightness has been proposed as Patent Registration No. 10-1558930.

The bottom plate structure of the registration number 10-1558930 integrates the deck plate 300 and the concrete member 400 in which the concave-convex part 310 of the convex part 311 and the convex part 312 is formed as shown in FIG. , it is composed of a composite structure in which the edges are integrated into a prosthetic type.

However, the deck structure composed of a composite structure of such a deck plate and a concrete member has the following problems.

Modules manufactured at the factory are not only stored in the yard before being transported to the site, but also can be stored outdoors for a certain period of time after being transported to the site according to the construction schedule. However, there is a large temperature difference between the deck plate of the steel plate directly exposed to the high temperature in summer and the concrete member inside, and the difference in expansion and contraction rate between the two members is added to this, leaving room for cracks on the surface of the concrete member.

In addition, due to the above-described composite structure, the floor plate structure itself becomes stiff and cannot easily respond to displacement, and there is a problem in that the floor plate structure is damaged during the lifting process of the crane or the vibration generated during the transportation of the vehicle.

US 10-1558930 B1

The present invention is to solve the above problems of the prior art, and improves the surface strength without applying a wet method in the field to improve walkability, reduce weight, and have good storage properties even at harsh temperatures, transport and An object of the present invention is to provide a floor plate structure of a movable building module that can sufficiently cope with displacement caused by vibration and temporary eccentric load that may occur during lifting and a method for forming the same.

According to the most preferred embodiment of the present invention for solving the above problems, it consists of a lightweight foam concrete panel placed on the upper surface of the beam member, and a steel plate placed on the upper surface of the lightweight foam concrete panel, and It is fixed to the member, but the lightweight foam concrete panel is not constrained by the beam member and the steel plate, so that it is installed in a non-synthetic structure with a steel plate to enable sliding according to temperature expansion and contraction. do.

The above-described installation structure of the bottom plate for the beam member can be easily configured by welding and fixing the upper end of the fastening member to the steel plate and screwing the lower end to the beam member.

According to another embodiment of the present invention, in the through-hole of the fastening member formed in the lightweight foam concrete panel in the above-described floor plate structure, a protective adhesion pipe having elastic force in the longitudinal direction while surrounding the fastening member is further installed, characterized in that A floor plate structure of a movable building module is provided.

According to another embodiment of the present invention, there is provided a method for forming the above-described floor plate structure, the method comprising: a) mounting a lightweight foam concrete panel on the upper surface of a beam member; b) laminating a steel sheet provided with a welding hole on the upper surface of the lightweight foamed concrete panel; c) fixing the fastening member to the beam member so that the upper end including the head protrudes into the welding hole while being screwed to the beam member through the welding hole and the lightweight foam concrete panel; d) fixing the fastening member to the steel plate by welding the upper end of the fastening member to the steel plate; e) flattening the upper surface of the steel plate; is provided a method of forming a floor plate structure of a movable building module, characterized in that consisting of.

At this time, the shape of the welding hole formed in the steel plate may be formed to be larger than the cross-section of the head of the fastening member so that the welding may be made while the head of the fastening member is located inside the welding hole, and the shape of the weld hole is formed in an elliptical shape, but shortened is smaller than the width of the head of the fastening member and the long axis is larger than the width of the head of the fastening member, so that the head of the fastening member spans the upper surface of the steel plate and a welding opening is formed in the long axis, and welding is performed through the welding opening can make it happen In the case of the former, the planarization of the upper surface of the steel sheet removes the protruding weld bead or the head of the fastening member by grinding.

The present invention supplements the weak surface strength and lack of smoothness, which are the disadvantages of lightweight foamed concrete panels with excellent fire resistance, thermal insulation and light weight, with thin steel plates, and provides high-quality foamed concrete panels by supplementing the insufficient walkability of the thin steel plates. It makes it possible to implement the floor plate structure economically.

In addition, the present invention consists of a lightweight aerated concrete panel and a steel plate in a non-synthetic structure, so that the harsh temperature in the outdoor yard and the temperature difference exposed to each member, the vibration or sudden impact that inevitably occurs during vehicle transportation, and lifting work It easily responds to the occurrence of displacement due to eccentric load generated during the process, so that defects such as cracks do not occur in the lightweight aerated concrete panel, improving the storage and transportability of the building module, as well as the workability of the site.

1 is a perspective view of a building module and a cross-sectional view of a floor plate structure according to the prior art.
2 is a perspective view of a movable building module to which the floor plate structure of the present invention is applied.
3 is a cross-sectional view of an embodiment of the bottom plate structure of the present invention.
Fig. 4 is an explanatory view of the behavior of the bottom plate structure.
5 is a perspective view of a protective adhesion pipe used in the bottom plate structure and a cross-sectional view of a bottom plate structure of another embodiment of the present invention to which the same is applied;
6 is an explanatory view of the first embodiment regarding the process of forming the bottom plate structure of the present invention.
7 is an explanatory view of the first embodiment regarding the process of forming the bottom plate structure of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the description of the present invention, in the case of obscuring or obscuring the technical idea of the present invention due to the detailed description of the known configuration, the description of the above known configuration will be omitted.

Figure 2 shows the floor plate structure of the movable building module (M) of an embodiment to which the floor plate structure of the present invention is applied.

The module (M) of the movable building is one of two divisions or three divisions depending on the size of the building having the space to be built, and is manufactured in a factory with both interior and exterior finishes completed. Therefore, in the field, after assembling the module (M) transported from the factory, it is lifted and installed in the correct position to complete the construction of a movable structure.

Such a movable building module (M), the beam member (10) of the cross beam (10a) and the vertical beam (10b) located in the upper and lower parts (if the length of the floor plate span is long, an intermediate beam may be further included), and the module (M) ), the outer skeleton is constituted by the pillar members 20 located at each corner, and the bottom plate of the present invention is installed on the upper surface of the beam member 10 . The beam member 10 is made of a rectangular steel pipe.

3 is a cross-sectional view showing the bottom plate structure of the present invention described above.

The bottom plate structure of the present invention uses a lightweight foamed concrete panel 210 as a part of the configuration, so that it can have a fire resistance performance and heat insulation performance along with a weight reduction of the module (M).

However, the lightweight foam concrete panel 210 has a weak surface strength, and when it is used as a floor plate, not only the edge beam must be poured, but also the floor plastering is required to maintain smoothness.

Therefore, the present invention improves the surface strength of the bottom plate by laminating a thin and flat steel plate 230 on the upper surface of the lightweight foam concrete panel 210 placed on the upper surface of the beam member 10 in order to solve this problem. That is, the bottom plate structure of the present invention allows the thin steel plate 230 to solve the problems of weak surface strength and insufficient smoothness, which are the problems of the lightweight foamed concrete panel 210, and the lightweight foamed concrete panel 210 is the steel plate 230 It forms a high-quality and economical floor plate structure through complementary actions such as resolving the problem of rattling while walking by reducing the thickness of the floor board.

In addition, the present invention provides a lightweight foamed concrete panel 210 so that there is no mutual restraint even when displacements of different sizes occur in the lightweight foamed concrete panel 210 and the steel plate 230 due to severe temperature changes or differences in exposure conditions, etc. and the steel plate 230 are combined in a non-synthetic structure.

Specifically, the bottom plate made of the lightweight foam concrete panel 210 and the steel plate 230 is fixed to the beam member 10 by the fastening member 240, but the steel plate 230 and the beam member 10 exposed to the outside. is fixed integrally by the fastening member 240, while the lightweight foamed concrete panel 210 located therein is not constrained by the beam member 10 and the steel plate 230, so as shown in FIG. Since the following sliding movement is possible, there is no room for cracks or damage to the lightweight aerated concrete panel 210 .

The non-synthetic structure of the lightweight foam concrete panel 210 only allows the fastening member 240 to have a fastening structure for integrating only the steel plate 230 and the beam member 10 with the fastening member 240 and the lightweight foam. It can be done by not having a fastening structure for integration between the concrete panels 210 .

The most preferred embodiment of this bottom plate fastening structure is to fix the upper end of the fastening member 240 to the steel plate 230 by welding (w), and the lower end of the fastening member 240 is screwed to the beam member 10 (s). make it fixed

A protective adhesion pipe 220 may be further provided between the lightweight foam concrete panel 210 and the fastening member 240 . 5 shows the structure of the protective adhesion pipe 220 and the structure of the bottom plate of the embodiment in which the protective adhesion tube 220 is provided.

The protective adhesion pipe 220 solves the problems caused by the occurrence of displacement due to the environmental change as described above, and in normal times when there is no displacement, the lightweight foamed concrete panel between the beam member 10 and the steel plate 230 ( 210) to maintain a stable fixed state without sliding.

The protective adhesion pipe 220 has a cylindrical shape as shown in Fig. 5 (a), and is inserted into the through hole 211 through which the fastening member 240 of the lightweight foam concrete panel 210 passes. As in (b), it has a structure installed in a way that surrounds the fastening member 240 .

In addition, the protective adhesion pipe 220 is provided with an elastic part 221 to have an elastic force in the longitudinal direction (the surface direction of the lightweight foam concrete panel 210), so that the lightweight foam concrete panel 210 is attached to the fastening member 240. It is possible to easily respond to horizontal displacement while maintaining a stable adhesion and fixation state, and in particular, it absorbs vibrations or sudden shocks to protect the lightweight foam concrete panel 210 from damage.

On the other hand, the protective adhesive pipe 220 should be easily inserted into the through hole 211 of the lightweight foam concrete panel 210 . Therefore, it is preferable to provide a hard hard part 222 on at least one of the inner and outer surfaces of the elastic part 221 . 5 is an example in which the protective adhesion pipe 220 is composed of an elastic part 221 and a hard part 222 on the inner surface thereof.

It is preferable to maintain a flat surface of the upper surface of the bottom plate for ease of bonding with other members such as walls or reinforced floors. That is, when the upper end of the fastening member 240 is welded (w) to the steel plate 230 as described above, the upper surface of the welded (w) fixed steel plate 230 is preferably made of a flat surface. A method of forming a bottom plate structure for this will be described.

The above-described method of forming the bottom plate structure comprises the steps of: a) mounting the lightweight foam concrete panel 210 on the upper surface of the beam member 10; b) welding holes 231 on the upper surface of the lightweight foam concrete panel 210 The step of laminating the provided steel plate 230, c) passing through the welding hole 231 and the lightweight foam concrete panel 210 and screwing (s) to the beam member 10, including the head 241 A step of fixing the fastening member 240 to the beam member 10 so that the upper end protrudes into the welding hole 231 , d) welding (w) the upper end of the fastening member 240 with the steel plate 230 to the fastening member 240 ) is fixed to the steel plate 230, e) consists of a step of planarizing the upper surface of the steel plate (230).

The through hole 211 provided in the lightweight foamed concrete panel 210 may be formed during the process of the fastening member 240 passing through the lightweight foamed concrete panel 210 during step c), but the lightweight foamed concrete It is preferable to preform the panel 210 before proceeding with step c) so that the protective adhesion pipe 220 can be installed.

According to the shape of the welding hole 231 provided in the steel plate 230, the fixing state of the fastening member 240 in step c) and the flattening operation in step e) are slightly different.

6 illustrates a first embodiment of this, the welding hole 231 provided in the steel plate 230 is formed to be larger than the cross section of the head 241 of the fastening member 240 .

Therefore, when the fastening member 240 is fixed to the beam member 10 by step c), the head 241 of the fastening member 240 is inserted into the welding hole 231 as shown in (a) of FIG. 6 . In this state, the welding w by step d) is made, and the head 241 of the fastening member 240 and the steel plate 230 are integrated as shown in (b) of FIG. 6 . It has a structure to be welded (w).

The flattening operation in step e) is completed by grinding the protruding part of the weld bead (b) formed after welding (w) as in FIG. 6(c).

7 illustrates a second embodiment related to the shape of the welding hole 231 , and the welding hole 231 provided in the steel plate 230 has an elliptical shape.

At this time, the short axis 231b of the ellipse is configured to be smaller than the width of the head 241 of the fastening member 240, and when the fastening member 240 is fixed to the beam member 10 in step c), the head of the fastening member 240 is 241 has a structure that prevents the steel plate 230 from moving during the work process by pressing it while spanning the upper surface of the steel plate 230 .

On the other hand, by configuring the long axis 231a of the ellipse to be larger than the width of the head 241 of the fastening member 240, when the fastening member 240 is fixed to the beam member 10 in step c), FIG. As shown in Fig., the welding opening 232 is formed in the long axis 231a portion of the head portion 241 of the fastening member 240 in a state that spans the upper surface of the steel plate 230, the fastening in step d) The welding w between the upper end of the member 240 and the steel plate 230 is performed through the welding opening 232 as shown in FIG. 7B.

The planarization operation in step e) is completed by grinding the head 241 of the fastening member 240 as shown in FIG. 7(c).

In the above, the present invention has been described in detail with reference to specific embodiments, but since the embodiments are merely examples for easy understanding of the present invention, those of ordinary skill in the art should be within the scope of the technical spirit of the present invention. It is obvious that it can be implemented with various modifications within. Accordingly, such modifications will be said to be within the scope of the present invention as described in the claims.

10; support member 20; column member
210; lightweight aerated concrete panel 211; through hole
220; protective sealing tube 221; elastic part
222; hard part 230; grater
231; welding hole 231a; long axis
231b; shortened 232; welding opening
240; fastening member 241; head

Claims (7)

In the interior floor plate structure of a building,
The bottom plate consists of a lightweight foam concrete panel 210 placed on the upper surface of the beam member 10, and a steel plate 230 placed on the upper surface of the lightweight foam concrete panel 210,
The bottom plate is fixedly installed to the beam member 10 by the fastening member 240,
The lightweight foamed concrete panel 210 is not constrained by the beam member 10 and the steel plate 230, so it is installed in a non-synthetic structure with the steel plate 230 to enable sliding according to temperature expansion and contraction,
The upper end of the fastening member 240 is welded (w) fixed to the steel plate 230, and the lower end is screwed (s) fixed to the beam member 10. A floor plate structure of a movable building module, characterized in that it is fixed.
delete According to claim 1,
The upper surface of the steel plate 230 to which the fastening member 240 is welded (w) fixed is a floor plate structure of a movable building module, characterized in that it consists of a flat surface.
According to claim 1,
A protective adhesion pipe 220 surrounding the fastening member 240 is installed in the through hole 211 through which the fastening member 240 of the lightweight aerated concrete panel 210 passes,
The protective adhesion pipe 220 is a floor plate structure of a movable building module, characterized in that it is configured to have an elastic force in the longitudinal direction.
5. The method of claim 1 or 3 or 4,
In the method of forming a bottom plate structure,
a) mounting the lightweight foam concrete panel 210 on the upper surface of the beam member 10;
b) laminating a steel plate 230 having a welding hole 231 on the upper surface of the lightweight foam concrete panel 210;
c) The fastening member so that the upper end including the head 241 protrudes in the welding hole 231 while screwing (s) through the welding hole 231 and the lightweight foam concrete panel 210 to the beam member 10 fixing (240) to the beam member (10);
d) fixing the fastening member 240 to the steel plate 230 by welding (w) the upper end of the fastening member 240 with the steel plate 230;
e) flattening the upper surface of the steel plate 230; a method of forming a floor plate structure of a movable building module, characterized in that consisting of.
6. The method of claim 5,
The welding hole 231 is formed to be larger than the cross section of the head 241 of the fastening member 240, and the welding w in step d) is the welding hole (w) of the head 241 of the fastening member 240. 231) A method of forming a floor plate structure of a movable building module, characterized in that it is made in a state located inside.
6. The method of claim 5,
The welding hole 231 is made in an elliptical shape, and the minor axis 231b is smaller than the width of the head 241 of the fastening member 240 and the long axis 231a is larger than the width of the head 241 of the fastening member 240 . Formed, when the fastening member 240 is fixed to the beam member 10 in step c), the long axis of the welding hole 231 in a state where the head 241 of the fastening member 240 spans the upper surface of the steel plate 230 . A welding opening 232 is formed in the portion 231a, and the welding (w) between the upper end of the fastening member 240 and the steel plate 230 in step d) is made through the welding opening 232, e) A method of forming a floor plate structure of a movable building module, characterized in that the head 241 of the fastening member 240 is removed by planarization in the step.

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