KR101431475B1 - Roof frame assembly with a means of preventing the lateral buckling of the beam - Google Patents

Roof frame assembly with a means of preventing the lateral buckling of the beam Download PDF

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Publication number
KR101431475B1
KR101431475B1 KR1020140050508A KR20140050508A KR101431475B1 KR 101431475 B1 KR101431475 B1 KR 101431475B1 KR 1020140050508 A KR1020140050508 A KR 1020140050508A KR 20140050508 A KR20140050508 A KR 20140050508A KR 101431475 B1 KR101431475 B1 KR 101431475B1
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KR
South Korea
Prior art keywords
roof
roof beam
flange
unit
tie beam
Prior art date
Application number
KR1020140050508A
Other languages
Korean (ko)
Inventor
채일수
Original Assignee
주식회사 아이에스중공업
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Publication date
Application filed by 주식회사 아이에스중공업 filed Critical 주식회사 아이에스중공업
Priority to KR1020140050508A priority Critical patent/KR101431475B1/en
Application granted granted Critical
Publication of KR101431475B1 publication Critical patent/KR101431475B1/en
Priority to PCT/KR2014/010303 priority patent/WO2015167091A1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation

Abstract

The present invention relates to a unit roof frame equipped with a device for preventing lateral buckling of tie beam in order to prevent the tie beam installed in a long-span beam from being easily deformed when a heavy weight is unexpectedly loaded on the tie beam. Two tie beams with an H shape comprising an upper flange, a lower flange and web are arranged in a row, and multiple upper sole plates are arranged in the vertical direction about the longitudinal direction of the tie beam on the top side of an upper flange of the tie beam. Multiple lower connectors are arranged in the vertical direction about the longitudinal direction of the tie beam on the top side of a lower flange of the tie beam, and arranged are multiple diagonal members connecting the upper sole plates and the lower connectors at both ends of the tie beam, the unit roof frame which the upper sole plates, the lower connectors and diagonal members form a lattice structure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a roof frame having a lateral buckling preventing means for a roof beam,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit roof structure of a long span structure, and more particularly, to a roof structure of a long span structure, in which a lateral buckling prevention means of a roof beam is provided so as not to be easily deformed even when an unexpected large load acts on the roof span The present invention relates to a unitized roof frame.

Recent development of construction materials and development of construction technology have led to the construction of many long span structures. These long span structures are widely used in auditoriums, gymnasiums, and factories because they can maximize the utilization of a wide space.

The structure of such a long span structure is variously made of SRC composite structure, truss structure, arch structure, film structure, etc., which adopts a prestressing method. However, PEB (Pre- Engineered Building), and prefabricated beams have been increasing.

In the case of such a long span structure, the standard of the member is determined based on the magnitude of the bending moment and the degree of deflection. Since the PEB is generally designed as a minimum member capable of withstanding the stress required in the structure analysis, Of the web due to the lateral buckling of the elongated web and the lateral buckling of the elongated web when the abrupt load more than the design load is generated, Deformation leads to the collapse of the structure.

1 is an exploded perspective view of a structure constructed by a prior art PEB, and Fig. 2 is a cross-sectional view taken along line A-A and B-B in Fig.

In order to prevent twisting transverse buckling of the roof beams, the unit roof box according to the related art has a roof beam composed of a prefabricated beam, A flange stay connecting the middle flange and the lower flange of the roof beam, and a tie beam connecting the upper ends of the webs of the roof beam adjacent to the roof beam.

However, when a torsional transverse buckling occurs, a large tensile force is generated in the flange stay. Such a tensile force can not sufficiently prevent lateral joint buckling of the roof beam due to shear breakage of the joint portion with the lower flange of the roof beam.

When the compressive force is applied to the roof beam, if the compressive force is less than the design load, the web is not transversely deformed but is reduced in the longitudinal direction. However, if the load exceeds the limit load like an unexpected snow load, Causing it to be structurally very dangerous.

In addition, a larger bending moment and a shear load are applied to the end portion of the roof beam, but the above-mentioned prior art does not consider such consideration at all.

KR 10-1250505 B1 KR 10-2009-0069787 A

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art described above, and it is an object of the present invention to improve the efficiency of member use while preventing the structure of the roof frame from being easily deformed even when an unexpectedly large load is applied, The object of the present invention is to provide a unit frame of one structure.

According to a preferred embodiment of the present invention, two roof beams having an H-shape having an upper flange and a lower flange and a web are arranged in parallel, and a plurality of upper horizontal members are provided on the upper flange of the roof beam in the longitudinal direction And a plurality of lower connecting members are disposed on the upper surface of the lower flange of the roof beam in a direction perpendicular to the longitudinal direction of the roof beams and at least at both ends of the roof beams, And the upper link member, the lower link member and the slope member form a lattice structure. The unit roof truck is provided with the lateral buckling preventing means of the roof beam.

According to another embodiment of the present invention, only the upper transverse member is provided between the lattice structures formed at both ends of the roof beam without the lower connecting member, and the upper transverse member of the portion without the lower connecting member is connected to the lower flange of the roof beam by the flange stay The unit roof frame is provided with the means for preventing lateral buckling of the roof beam.

The present invention effectively arranges each member for forming a unit roof frame so that even if a load exceeding a design load is applied, the roof beam can be easily twisted or local buckling can be avoided and structural stability can be ensured, So that economic construction can be achieved.

In addition, the present invention enables the unit roof truck to be manufactured in the factory, and the unit roof roofs can be easily assembled by assembling the unit roof towers in the field, thereby making it possible to construct the structure and shorten the air.

In addition, the present invention makes it possible to safely and easily install auxiliary facilities such as a ceiling tile, an electric and a fire fighting tray by using the lateral buckling preventing means.

Figure 1 is an exploded perspective view of a structure constructed by a prior art PEB.
2 is a cross-sectional view taken along line AA and BB in Fig. 1
3 is a perspective view of the unit roof according to the present invention.
4 is a perspective view showing a lattice structure of a unit roof according to the present invention.
5 is a perspective view showing a structure in which a flange stay is installed on an upper transverse member of the unit roof according to the present invention.
6 is a perspective view of an embodiment in which the unit roof of the present invention is reinforced with a sag rod and a rod rod.
7 is a perspective view showing a state in which a plurality of unit roof frames according to the present invention are connected.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, however, it is to be understood that the present invention is not limited to the disclosed embodiments.

FIG. 3 is a perspective view showing the unit skyline 100 according to the present invention as a whole. 3, the unit frame 100 according to the present invention includes two roof beams 110 arranged in parallel and a plurality of upper transverse members 120 connecting between the roof beams 110 And an inclined member 140 connecting the upper transverse member 120 and the lower connecting member 130. [

The roof beam 110 is constituted by a prefabricated beam which is formed in an H shape having an upper flange 111 and a lower flange 112 and a web 113 by roll forming and welding the steel plate, 110) allows the load to be efficiently supported while minimizing the amount of steel used.

This prefabricated beam uses a dancing web 113 to increase the section modulus. However, as described above, the prefabricated beam having a large dancing may be exerted by the buckling of the web 113 due to the vertical center axis being not maintained by the compressive load of the upper portion, It is necessary to maintain the shape of the prefabricated beam so that the prefabricated beam can sufficiently exhibit its own strength until plastic deformation.

To this end, a lateral buckling preventing means is provided between the roof beam 110 and the roof beam 110. [ The lateral buckling preventing means comprises a lattice structure composed of an upper cross member 120, a lower link member 130, and a slope member 140. Fig. 4 shows such a lattice structure of the present invention.

The upper transverse member 120 is composed of Z bars or a plurality of channels and a plurality of transverse members are arranged on the upper surface of the upper flange 111 of the roof beam 110 in a direction perpendicular to the longitudinal direction of the roof beam 110, A roof panel, and the like, and functions as a center which uniformly distributes the load of the roof panel to each of the roof beams 110. [

In addition, the upper cross member 120 functions as a lattice structure together with the lower coupling member 130 and the slant member 140, thereby omitting a separate upper current member for constructing the lattice structure, thereby reducing the material The vertical center axis of the roof beam 110 is rotationally moved by the excessive vertical load and the eccentric load to prevent lateral buckling.

The upper transverse member 120 is overlapped with the adjacent upper transverse member 120 so that stress transmission can be facilitated while facilitating the joining operation. It is preferable to provide the protruding portion by a predetermined length from the end.

The upper transverse member 120 may be directly fixed to the upper flange 111 of the roof beam 110 by means of bolts or the like but may be fixed to the upper flange 111 of the roof beam 110 by bolts or welding And is installed in the roof beam 110 through the fixed bracket 121.

The lower joint member 130 is formed of any one of a pipe, a circular pipe and an angle and is arranged in a direction perpendicular to the longitudinal direction of the roof beam 110 on the upper surface of the lower flange 112 of the roof beam 110, Thereby preventing the vertical center axis of the roof beam 110 from being changed together with the upper cross member 120 while maintaining the spacing between the beams 110.

The lower bracket 130 may be directly attached to the upper surface of the lower flange 112 of the roof bracket 110. The connection bracket 131 is preferably formed on the upper surface of the lower flange 112 of the roof bracket 110, (112), and then bolts to the connection bracket (131). The installation of the lower coupling member 130 using the connection bracket 131 enables the precision and ease of the fixed installation work when the prefabricated lattice structure is installed on the roof beam 110.

The inclined member 140 connecting between the upper transverse member 120 and the lower connecting member 130 is formed of any one of a tube, a circular tube and an angle. The inclined member 140 supports the bending stress generated in the lattice structure by an axial force, prevent.

In addition, since the lattice structure has a sufficient structural rigidity against bending, it is possible to suspend additional facilities such as electrical equipment and firefighting equipment installed on the ceiling of the roof, and the installation work of the brackets and the like for the installation thereof is omitted .

The lattice structure composed of the upper cross member 120, the lower link member 130, and the slope member 140 may be continuously installed at regular intervals with respect to the longitudinal direction of the roof beam 110, but preferably the bending stress and shear stress And only the upper transverse member 120 is installed between the lattice structures without the lower connecting member 130. [

5, the upper transverse member 120 is connected to the lower flange 112 of the roof beam 110 by the flange stay 150, so that the roof beam 110 of the portion where the lattice structure is not installed ), So that lateral buckling does not occur.

The flange stay 150 is formed of any one of a pipe, a circular pipe, and an angle like the slope material 140.

6 is a perspective view of an embodiment in which a unit roof frame 100 according to the present invention is reinforced with a sag rod and a rod bar.

A plurality of sidewalls 122 may be installed between the upper sidewalls 120 arranged and fixed to the roof beams 110 in a vertical direction to prevent the sidewalls 120 from being bent right and left.

The load bar 114 or the bracing cable may be reinforced in an X-shape between the roof beam 110 and the roof beam 110 to fundamentally block the lateral deformation of the roof beam 110.

The unit roof box 100 of the present invention described above can be precisely manufactured at a factory, transported to the site, and then simply assembled, so that a high-quality roof structure can be formed in a short period of time, thereby enabling a very economical construction.

FIG. 7 is a perspective view showing a process of assembling a roof structure by connecting a plurality of unit roofs 100 of the present invention. As shown in FIG. 7, the unit roof frame 100 and the unit roof frame are connected to each other by a lattice structure and an upper connection member, thereby forming a roof structure which is integrated as a whole to prevent lateral buckling.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that it will be possible to carry out various modifications thereof. It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.

100: unit roof frame 110: roof beam
111: upper flange 112: lower flange
113: web 114: rod bar
120: upper horizontal member 121: fixed bracket
122: sag rod 130:
131: connection bracket 140: inclined member
150: Flange stay

Claims (7)

Two roof beams 110 made up of a prefabricated welding beam in which the upper flange 111 of the steel plate and the lower flange 112 and the web 113 are welded to each other are formed in parallel,
A plurality of upper transverse members 120 are fixedly installed on the upper surface of the upper flange 111 of the roof beam 110 in a direction perpendicular to the longitudinal direction of the roof beam 110,
A plurality of lower coupling members 130 are fixedly installed on the upper surface of the lower flange 112 of the roof beam 110 by being disposed in a direction perpendicular to the longitudinal direction of the roof beam 110,
A plurality of inclined members 140 connecting between the upper transverse member 120 and the lower connecting member 130 are disposed at both ends of the roof beam 110 so that the upper transverse member 120 and the lower connecting member 130, Wherein the ash (140) forms a lattice structure.
The lattice structure according to claim 1, wherein only the upper cross member (120) is provided without the lower link member (130) between the lattice structures formed at both ends of the roof beam (110) Is connected to the lower flange (112) of the roof beam (110) by a flange stay (150).
delete The unit roof box according to claim 1, wherein the upper cross member (120) is installed to protrude from a widthwise outer end of the upper flange (111) of the roof beam (110) .
2. The roof beam according to claim 1, wherein a connection bracket (131) is provided on a lower flange (112) of the roof beam (110), and a lower coupling member (130) A unit roofing structure provided with buckling prevention means.
2. The unit roof according to claim 1, wherein the upper cross member (120) is a Z-bar or a C-channel.
2. The unit roof box according to claim 1, wherein the slope member (140) and the lower coupling member (130) are any one of a pipe, a circular pipe and an angle.
KR1020140050508A 2014-04-28 2014-04-28 Roof frame assembly with a means of preventing the lateral buckling of the beam KR101431475B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020140050508A KR101431475B1 (en) 2014-04-28 2014-04-28 Roof frame assembly with a means of preventing the lateral buckling of the beam
PCT/KR2014/010303 WO2015167091A1 (en) 2014-04-28 2014-10-30 Unit roof truss having means for preventing lateral buckling of roof beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140050508A KR101431475B1 (en) 2014-04-28 2014-04-28 Roof frame assembly with a means of preventing the lateral buckling of the beam

Publications (1)

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KR101431475B1 true KR101431475B1 (en) 2014-08-21

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WO (1) WO2015167091A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602468A (en) * 1979-11-13 1986-07-29 Harold Simpson, Inc. Roof clip assembly for a roof system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4198697B2 (en) * 2005-04-28 2008-12-17 勇 矢原 Wooden building structure
KR101082575B1 (en) * 2009-04-09 2011-11-10 삼중테크 주식회사 Reinforced long steel beam for stiffness and method of constructing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602468A (en) * 1979-11-13 1986-07-29 Harold Simpson, Inc. Roof clip assembly for a roof system

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