KR20030015983A - Roof structure of set building and construction method thereof - Google Patents

Abstract

PURPOSE: A roof structure of a pre-fabricational building is provided to simplify horizontal leveling and height-control work and to rigidly form a combination of wall body and module of the roof structure in order to improve durability and safety in house construction application. CONSTITUTION: The roof structure comprises an end roof structure module group including a main trusses group(10'), a number of beam components(20) for connecting the trusses, first rectangular pipe components(30) for binding wall body and load bar group for diagonally connecting edges of the main trusses; an intermediate roof structure module including a central main truss, a second rectangular pipe component for binding wall body, a number of extended beam components and a truss connection component having angle components to bind the main trusses(80) of the end roof structure module; and fasteners to join the main trusses of the end roof structure and the angle components at both end of the intermediate roof structure.

Description

ROOF STRUCTURE OF SET BUILDING AND CONSTRUCTION METHOD THEREOF}

The present invention relates to a roof structure of a prefabricated building and a method of constructing the same, and more particularly, to a roof structure and a method of constructing the roof structure by assembling a plurality of unit roof structure modules prepared in advance in a factory.

In general, when constructing a prefabricated building having a gable roof, a roof structure is formed by processing a unit steel member with a truss in the field and welding or bolting each truss member to the unit steel member again. Installing roof finishes.

This general roof construction method has a problem in precision by manufacturing the roof structure in the field one by one, it is easy to cause a large amount of defects after construction, and also a lot of material loss. In addition, there is always a risk of safety accidents as workers work at high places.

In order to solve the problem of the field production method as described above, in recent years, a construction method for fabricating the roof structure in advance for each unit module in the factory and assembling in the field has been widely adopted. In this case, the prefabricated wall is built in advance on the foundation of the building, and the roof structure unit modules transferred to the site are lifted on the unit prefabricated wall by lifting with a heavy lifting machine and fixed to the top of the wall after horizontal leveling and height adjustment.

At this time, since one-to-one horizontal leveling and height adjustment work for each roof module unit module is combined between the modules, a lot of work time and labor is required, and the difficulty of the work is a factor of increasing construction costs.

In addition, when the roof structure is fixed on the wall by lifting the roof structure, the roof structure modules are placed on the prefabricated wall and fixed by half-width using hardware and wood. Although it should be secured, there was a problem in that the durability of the wall and the roof structure connection part was weak as a construction method for fixing by half using simple hardware and wood as described above.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, in constructing a roof of a prefabricated structure by connecting a plurality of roof structure modules, a roof structure and a construction method that can significantly reduce work time and man-hours The purpose is to provide.

In addition, another object of the present invention is to provide a roof structure and a method of constructing the roof structure and strengthening of the joining portion in the coupling of the roof structure and the wall of the prefabricated building.

1 is a block diagram of an end roof structure module according to the present invention,

2 is a block diagram of an intermediate roof structure module according to the present invention;

3 and 4 is a schematic construction state of the roof structure according to the present invention,

5 and 6 are connected state diagrams between both ends of the intermediate roof structure module and the main truss of the end roof structure module.

7 is a cross-sectional view taken along line AA ′ of FIG. 6;

8a to 8c is a process of coupling the end roof structure modules to the top of the wall and the structural coupling between components.

Explanation of symbols on the main parts of the drawings

10,10 ', 50: main truss 20,70: beam member

30, 60: square pipe member 40, 40 ': rod bar

80,80 ': Truss connecting member

In order to achieve the above object, a roof structure according to the present invention includes a set of main trusses arranged to be spaced apart at a predetermined interval in parallel with each other, a plurality of beam members connecting the set of main trusses, and the respective main trusses A first square pipe member for wall joining to protrude vertically downward from a corner of the wall, and a set of rod bars connecting the corners of the main trusses in a diagonal direction, respectively, and fixedly installed at the front and rear ends of the structure on the wall, respectively. A set of end roof structure modules; A central main truss installed in the middle, a second rectangular pipe member for wall coupling protruding downwardly and vertically from a corner of the central main truss, a plurality of extension beam members extending in both longitudinal directions from the central main truss; Intermediate roof structure modules, which are connected to the ends of the extended beam members, respectively, and are made up of truss connecting members including angle members overlapping one main truss of each of the one end roof structure modules, and installed between the one end roof structure modules. ; And a fixture for coupling the main truss of each side of the set of end roof structure modules with the truss connecting members at both ends of the middle roof structure.

In addition, the method of constructing a roof according to the present invention includes a set of main trusses that are spaced apart at a predetermined interval in parallel to each other, a plurality of beam members connecting the set of main trusses, and corners of the main trusses. A pair of end roof structure modules each having a first square pipe member for wall joining so as to protrude vertically downward from the wall, and a set of rod bars connecting the corners of the main trusses in a diagonal direction, at the front and rear ends of the structure. A first step of placing on the top of the wall to be located; A second step of adjusting horizontal leveling and height while supporting a lower end of the first end roof structure by using a jack support temporarily installed on the top of the wall; A third step of fixing the first rectangular pipe member of the first end roof structure module on the wall after horizontal leveling and height adjustment; A central main truss installed in the middle, a second rectangular pipe member for wall coupling protruding downwardly and vertically from a corner of the central main truss, a plurality of extension beam members extending in both longitudinal directions from the central main truss; An intermediate roof structure module connected to the ends of the extension beam members, the truss connecting member comprising an angle member overlapping with one side main truss of each of the one end roof structure module, between the one end roof structure module A fourth step of seating; And a fifth step of fixing each truss connecting member of the middle roof structure module to one side of the one end roof structure main truss and fixing the second square pipe member of the central main truss to the top of the wall. It is done.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a block diagram of an end roof structure module according to the present invention, Figure 2 is a block diagram of an intermediate roof structure module according to the present invention.

Prefabricated building construction method to which the present invention is applied is, as shown in the roof structure module previously manufactured in the factory to build two walls in parallel, spaced apart by the width of the building on the foundation on which the building will be placed, and fixed across these walls They are placed on top of the walls by lifting and fixedly coupling these roof structure modules onto the walls.

The roof structure according to the present invention is fixed to the end roof structure module as shown in FIG. 1 at the front and rear ends of the structure at the top of the wall, respectively, and between the end roof structure modules, as shown in FIG. Both ends thereof are joined to each of the end structure modules via an intermediate roof structure module.

First, the configuration of the end roof structure module will be described with reference to FIG. 1.

The end roof structure module has a plurality of beam members 20 connecting between a set of main trusses 10 and 10 'which are spaced apart at a predetermined interval in parallel to each other and the set of main trusses 10 and 10'. ), A square pipe member 30 for wall coupling protruding downward from the corners of the main trusses 10, 10 ', and the corners of the main trusses 10, 10' in a diagonal direction. It consists of a set of load bars (40, 40 '). The set of rod bars 40 and 40 'is responsible for a bracing function to prevent twisting of the roof structure module.

Next, the configuration of the intermediate roof structure module with reference to Figure 2 as follows.

The intermediate roof structure module includes a central main truss 50 installed in the middle, a square pipe member 60 for wall joining protruding downwardly and vertically from a corner of the central main truss 50, and the central main truss ( A plurality of extension beam members 70 extending in both longitudinal directions from the side 50, and connected to ends of the extension beam members 70, respectively, and each of the main trusses 10 and 10 'of the end roof structure module; It consists of a truss connecting member (80, 80 ') consisting of an angle member that is connected to overlap.

3 and 4 is a schematic view illustrating the construction of a roof structure according to the present invention. Referring to these drawings, the process of constructing a roof structure according to the present invention will be described below.

First, after building both walls on the foundation of the structure, the end roof structure modules are fixedly installed at the front and rear ends of the structure at the top of the wall, respectively, between the walls (see FIG. 3). At this time, each of the end roof structure modules are installed while being adjusted to maintain the same height and level. The process of fixing these end roof structure modules to the top of the wall will be described later in detail with reference to FIG. 8.

After the end roof structure modules are fixed on the wall while maintaining the same height and level with each other at the front and rear ends of the structure, the intermediate roof structure module is doubled and fixedly installed (see FIG. 4), where the intermediate roof structure The truss connecting members 80 and 80 'at both ends of the module are overlapped with one side of the main truss 10 and 10' of the end roof structure module.

The process and configuration of connecting the connection members 80 and 80 'at both ends of the intermediate roof structure module and the main trusses 10 and 10' of the end roof structure module will be described with reference to FIGS. 5 and 6 as follows.

As shown in FIG. 5, the intermediate roof structure module is seated between the end roof structure modules fixed on the wall while maintaining the same height and level, and the truss connecting members 80 at both ends composed of angle members. 80 ') is positively seated to overlap the outer members of the main truss 10' of the end roof structure module.

As shown in FIG. 6, the main truss 10 of the end roof structure module and the coupling hole 81 on the truss connecting members 80 and 80 ′ formed in the manufacturing process or made of perforation in the field. The truss connecting members 80 and 80 'and the main truss 10 and 10' of the end roof structure module are coupled by fastening the fasteners 83 and 84 to be fixed through the coupling holes 82 on the 10 '). do. FIG. 7 is a cross-sectional view taken along line AA ′ of FIG. 6 to show a coupling state between the main trusses 10 and 10 ′ and the truss connecting members 80 and 80 ′.

Here, the intermediate roof structure module does not require a separate height adjustment or horizontal leveling operation, which means that the end roof structure modules have already completed horizontal leveling and height adjustment work, and the truss connecting members 80 and 80 of the intermediate roof structure module are completed. This is because the horizontal leveling and the height of the intermediate roof structure module are the same as the state of the end roof structure modules at both ends, because ') overlaps and is fixed to the main trusses 10 and 10' of both end roof structure modules.

Therefore, according to the present invention, one set of end roof structure modules serving as both ends of the roof is fixedly installed at the front and rear ends of the structure through horizontal leveling and height adjustment operations, and then the intermediate roof structure module is installed at these ends without horizontal leveling and height adjustment operations. The fixed installation between the roof structure modules simplifies the horizontal leveling and height adjustment work of the roof structure module in the related art and reduces the man-hour.

Now, the process and configuration of fixing these roof structure modules to the top of the wall will be described in detail.

Roof structure modules are fixed to the square pipe member (30, 60) protruding downwardly perpendicular to the corner of the main trusses (10, 10 ', 50) is combined with the structure on the wall.

8A to 8C illustrate a process of fixedly coupling end roof structure modules to the top of the wall and an inter-component coupling structure.

First, as shown in Fig. 8A, a plurality of anchor bolts 11 are provided on the wall upper surface at predetermined intervals. In addition, the cross section has a shape of a plurality of through holes 12 through which the anchor bolt 11 penetrates on the upper surface thereof, and has a predetermined length perpendicular to the corresponding position where the corner of the roof structure module is fixed. The square pipe 13 covers the rail member 17 fixed by welding etc. to the upper end of a wall. Here, the square pipe 13 has a fixing hole 14 penetrating the opposite side at a predetermined position.

When the top of the wall is covered with the rail member 17, the anchor bolts 11 are covered so as to pass through the through-hole 12, a plurality of anchor bolts 11 installed on the upper surface of the wall is the rail member 17 It penetrates the through hole 12 so as to be exposed to the outside.

In the state where the upper end of the wall is covered with the rail member 17, the rail member 17 is fastened by fastening the washer 15 and the nut 16 to the exposed portions of the anchor bolts 11 passing through the through holes 12. Fix firmly to the top of the wall.

As described above, when the fixed installation of the rail member 17 is completed on the top of the wall, at least two or more jack supports 18 are temporarily installed at a predetermined position on the rail member 17 as shown in FIG. 8B. The jack support 18 is used to adjust the level and height of the end roof structure modules while supporting the bottom of the end roof structure module when the four corners are fixed and placed on top of the wall by lifting.

When the temporary installation of the jack support 18 is completed, as shown in Figure 8c the end roof structure modules are fixed across both walls.

The end roof structure module has a square pipe member 30 fixed perpendicularly to four corners (a corner of the main truss), and the square pipe member 30 is a square pipe 13 fixed on the rail member 17. ) Has a size that can be interpolated, the long hole 31 corresponding to the fixing hole 14 formed in the square pipe 13 on the rail member 17 is formed through the opposite side, the long hole 31 Filling hole 32 is formed in the upper side of the).

Therefore, the end roof structure module is first fixed to the wall by causing the square pipe member 30 fixedly installed at four corners to be extrapolated to the square pipes 13 fixed at the corresponding positions on the rail member 17.

In this state, the end roof structure modules are supported by the jack support 18 temporarily installed on the rail member 17, and the horizontal level and height thereof are adjusted. When the horizontal leveling and height adjustment are completed, the square is completed. It is secondarily fixed by fixing bolts and nuts 33 and 34 fastened while penetrating through the long hole 31 of the pipe member 30 and the through hole 14 of the square pipe 13.

After the fixing bolt and the nuts 33 and 34 are fixed to the wall and the end roof structure module in a state where the horizontal level and the height are adjusted, the temporarily installed jack support 18 is mounted on the rail member 17. Dismantle. And in order to maintain a fixed state between the wall and the end roof structure module, by filling the high-strength shrinkage mortar through the filling hole 32 of the square pipe member 30 by the curing of the mortar filled by the rail member ( 17) the rigid bolt 33 and the inner wall of the square pipe 13 and the inner end of the square pipe member 30 of the end roof structure module to be integrally coupled to the final solid coupling is made.

The fixing of the intermediate roof structure module to the wall is such that the rectangular pipe member 60 at the corner of the central main truss 50 is a rail member when the intermediate roof structure module is seated between the previously fixed end roof structure modules. (17) It is fixed to the square pipe 13 of the upper end, which is fixed in the same manner as the square pipe member 30 of the above-described end roof structure module is coupled. At this time, the horizontal leveling and height adjustment work by the operation of the jack support 18 is omitted.

As such, when the coupling between the end roof structure modules and the intermediate roof structure module is completed at the top of the wall, the construction of the roof is completed by installing a roof finish (not shown) on the top of the roof structure module.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

Therefore, the present invention made as described above, it is possible to greatly reduce the overall work time and man-hours by simplifying the horizontal leveling and height adjustment work in the roof structure module installation process during the construction of the prefabricated structure.

In addition, it is possible to strengthen the coupling structure between the wall and the roof structure module, the durability is improved compared to the structure fixed in the conventional half-haul has an excellent effect of ensuring the stability when applied to residential prefabricated house.

Claims (3)

In the roof structure of the prefabricated structure, A set of main trusses spaced apart from each other at predetermined intervals in parallel to each other, a plurality of beam members connecting between the set of main trusses, and a first wall joining protruding downward from the corners of the main trusses A pair of end roof structure modules each having a square pipe member and a set of rod bars connecting the corners of the main trusses in a diagonal direction, respectively fixed to the front and rear ends of the structure on a wall; A central main truss installed in the middle, a second rectangular pipe member for wall coupling protruding downwardly and vertically from a corner of the central main truss, a plurality of extension beam members extending in both longitudinal directions from the central main truss; Intermediate roof structure modules, which are connected to the ends of the extended beam members, respectively, and are made up of truss connecting members including angle members overlapping one main truss of each of the one end roof structure modules, and installed between the one end roof structure modules. ; And Fixtures for joining the main truss of each side of the pair of end roof structure module and the truss connecting members of both ends of the intermediate roof structure Roof structure of the prefabricated structure comprising a. In the roof construction method of the prefabricated structure, A set of main trusses spaced apart from each other at predetermined intervals in parallel to each other, a plurality of beam members connecting between the set of main trusses, and a first wall joining protruding downward from the corners of the main trusses A first step of placing a set of end roof structure modules each having a square pipe member and a set of rod bars connecting corners of the main trusses in a diagonal direction, on top of the wall so as to be positioned at the front and rear ends of the structure; A second step of adjusting horizontal leveling and height while supporting a lower end of the first end roof structure by using a jack support temporarily installed on the top of the wall; A third step of fixing the first rectangular pipe member of the first end roof structure module on the wall after horizontal leveling and height adjustment; A central main truss installed in the middle, a second rectangular pipe member for wall coupling protruding downwardly and vertically from a corner of the central main truss, a plurality of extension beam members extending in both longitudinal directions from the central main truss; An intermediate roof structure module connected to the ends of the extension beam members, the truss connecting member comprising an angle member overlapping with one side main truss of each of the one end roof structure module, between the one end roof structure module A fourth step of seating; And A fifth step of fixing each truss connecting member of the intermediate roof structure module to one side of the one end roof structure main truss and fixing the second square pipe member of the central main truss to the top of the wall; Roof construction method of a prefabricated structure comprising a. The method according to claim 2, The third step, Extrapolating the first square pipe member to a square pipe formed on the wall, and fastening a fixing bolt passing through the first square pipe member and the square pipe and fixing the nut with a nut; And Filling and curing the high-strength shrinkage mortar inside the first square pipe member. Roof construction method of a prefabricated structure, characterized in that carried out by.