KR20230027968A - Roof frame - Google Patents

Abstract

The present invention relates to a roof frame that enables the implementation of a long-span space frame without temporary supports and can omit a separate purlin installation process by combining upper and lower layers of an H-beam spaced apart from each other vertically by a space bar whose end is coupled to a gusset plate protruding on one side of the H-beam. The roof frame of the present invention comprises: an upper layer in which a plurality of H-beams are spaced apart from each other in the horizontal direction; a lower layer vertically spaced below the upper layer and provided with a plurality of H-beams spaced apart from each other in the horizontal direction so as to be positioned between the H-beams of the upper layer in a plan view; a plurality of space bars interconnecting the H-beams of the upper layer and the H-beams of the lower layer; and a joint provided on one side of the H-beam and including a plurality of gusset plates whose outer end protrudes outward from the side of the H-beam to allow the end of the space bar to be coupled thereto.

Description

Roof frame {Roof frame}

In the present invention, the upper and lower layers, which are H-beams arranged vertically, are connected by a space bar whose end is coupled to a gusset plate protruding on one side of the H-beam, so that a long span space frame can be implemented without temporary support, and a separate purlin It is about a roof frame that can omit the installation process.

In many cases, large-scale buildings such as logistics warehouses, factories, sports facilities, exhibition halls, hangars, performance facilities, and assembly and viewing facilities are constructed by forming pillarless spaces inside.

Space frames are often used to install roof structures in large-scale pillarless spaces.

The space frame is a three-dimensional lattice of three-dimensional trusses in which a plurality of space bars 100 are interconnected with ball joints 200, and is advantageous for a long span structure of 30m or more because it is strong yet lightweight and has low self-weight burden (FIG. 1). In addition, since all members are factory-manufactured and only need to be assembled on-site, there is no need for on-site welding process, construction precision is excellent, air is very fast compared to general steel structures, and openness and lighting are excellent, as well as excellent aesthetics. there is.

The space frame is composed of a space bar that serves only as a shaft member without considering bending, and supports the load as a whole of the completed three-dimensional lattice structure. Therefore, it is vulnerable to deflection until assembly is completed, and multiple temporary supports are required during construction.

Therefore, in the case of constructing the roof frame of the space frame on the site in use, there are many limitations in terms of construction.

In particular, as air quality management has become strict in recent years, there is an increasing demand for large-scale roof installation to block scattering dust from outdoor coal storage sites of thermal power plants. In this case, since it is difficult to stop using an outdoor storage facility for roof frame installation, the space frame has limitations in its application due to temporary construction despite its many advantages.

On the other hand, in the existing space frame, a separate purlin (300) must be installed on the top of the space frame in order to construct a roof panel on the top.

However, in this case, air is delayed due to the purlin installation process, and since the purlin is provided above the space frame, there is a problem in that the depth of the roof frame is unnecessarily increased. In addition, the purlin installation work is a high-altitude work, and there is a risk of worker safety accidents, and it is difficult to adjust the purlin interval because the purlin can only be installed at the nodal part of the space bar.

KR 10-1528913 B1

In order to solve the above problems, the present invention is to provide a roof frame capable of realizing a long span space frame without temporary support.

The present invention is to provide a roof frame that can omit a separate purlin installation process.

The present invention according to a preferred embodiment is an upper layer provided with a plurality of H-beams spaced apart from each other in the horizontal direction; A lower layer in which a plurality of H-beams are spaced apart from each other in a horizontal direction so as to be spaced vertically below the upper layer and positioned between the H-beams of the upper layer on a plane; A plurality of space bars interconnecting the H-beams of the upper layer and the H-beams of the lower layer; and a joint provided on one side of the H-beam and including a plurality of gusset plates having an outer end protruding outward from the side of the H-beam and to which an end of the space bar is coupled. It provides a roof frame, characterized in that consisting of.

In the present invention according to another preferred embodiment, the H-beam is provided with a pair of flanges located at the upper and lower portions, respectively, and the gusset plate of the fitting extends to the web of the H-beam and one side is fixed to the outside of the web. Provides a characterized roof frame.

According to another preferred embodiment, the present invention provides a roof frame characterized in that a first horizontal stiffener is coupled to a position spaced apart from one side flange between adjacent gusset plates of the joint.

According to another preferred embodiment, the present invention provides a roof frame characterized in that a second horizontal stiffener is coupled between one flange and the other flange between adjacent gusset plates of the joint.

The present invention according to another preferred embodiment provides a roof frame characterized in that a horizontal support bar for connecting and supporting neighboring H-beams in a horizontal direction is coupled to the second horizontal stiffener.

According to another preferred embodiment of the present invention, the joint is provided on one side of the H-beam and provides a roof frame, characterized in that it further includes a shaft member coupled to the outer circumferential surface of the gusset plates.

According to another preferred embodiment of the present invention, the joint is provided on one side of the H-beam to provide a roof frame, characterized in that a joint plate to which the gusset plate is coupled is further provided.

According to another preferred embodiment of the present invention, a joint plate is provided at an end of the space bar, and the space bar is coupled to the gusset plate by a pair of additional plates fixed to both sides of the joint plate and the gusset plate. Provide a roof frame.

According to the present invention, the upper and lower layers, which are H-beams spaced vertically, are connected to a plurality of space bars, and the end of the space bar is coupled to the gusset plate protruding from one side of the H-beam to provide a roof frame to which the upper and lower layers are connected. can do.

Therefore, the double-layer steel frame structure can provide a hybrid structure of steel frame + space frame connected by a space bar, and since the H-beams of the upper and lower layers support the construction load by their own bending stiffness, the roof frame can be installed without temporary support. In addition, since the space bar is provided between the upper and lower layers of the steel frame, a long span and light weight, economical and structurally stable space frame can be implemented.

In addition, when a horizontal support bar connecting neighboring H-beams in a horizontal direction is provided, since the horizontal support bar serves as a purlin for installing a roof panel, the purlin installation process can be omitted.

1 is a diagram showing a conventional space frame;
Figure 2 is a perspective view showing the roof frame of the present invention.
3 is a view showing the construction sequence of the roof frame of the present invention.
Fig. 4 is a perspective view showing a first embodiment of a junction tool;
5 is a perspective view showing a coupling relationship between an expandable gusset plate and an H-beam.
6 is a perspective view showing a state in which a first horizontal stiffener and a second horizontal stiffener are coupled;
Fig. 7 is a perspective view showing a second embodiment of a junction tool;
Fig. 8 is a perspective view showing a third embodiment of a junction tool;
Fig. 9 is a perspective view showing a fourth embodiment of a fitting.
Fig. 10 is a perspective view showing a fifth embodiment of a junction tool;
Fig. 11 is a perspective view showing a sixth embodiment of a junction tool;
Fig. 12 is a perspective view showing a seventh embodiment of a junction tool;
13 is a perspective view showing a coupling relationship between a space bar and a gusset plate by an overplate;
14 is a perspective view showing a coupled state of a space bar and a gusset plate by an additional plate in H-beams disposed left and right;
15 is a perspective view showing the coupling state of the space bar and the gusset plate by the over plate in the H-beams arranged up and down
16 is a perspective view showing another embodiment of a space bar and a gusset plate;

Hereinafter, the present invention will be described in detail according to the accompanying drawings and preferred embodiments.

2 is a perspective view showing the roof frame of the present invention, and FIG. 3 is a view showing the construction sequence of the roof frame of the present invention.

As shown in Figures 2 and 3, the roof frame of the present invention includes an upper layer (3a) in which a plurality of H-beams 31 are spaced apart from each other in the horizontal direction; A lower portion in which a plurality of H-beams 31 are spaced apart from each other in the horizontal direction so as to be spaced apart in the vertical direction from the lower part of the upper layer 3a and positioned between the H-beams 31 of the upper layer 3a on a plan view. layer 3b; A plurality of space bars 4 interconnecting the H-beams 31 of the upper layer 3a and the H-beams 31 of the lower layer 3b; and a plurality of gusset plates 51 provided on one side of the H-beam 31, the outer end of which protrudes outward from the side of the H-beam 31, and the end of the space bar 4 is coupled. sphere (5); It is characterized by consisting of.

The present invention is to provide a roof frame capable of implementing a long span space frame without temporary support and omitting a separate purlin installation process.

The roof frame 2 of the present invention includes an upper layer 3a and a lower layer 3b, a space bar 4, and a joint 5 that are vertically spaced apart.

The upper layer (3a) and the lower layer (3b) are each configured by arranging a plurality of H-beams 31 spaced apart from each other in the horizontal direction.

The H-beams 31 of the upper layer 3a and the H-beams 31 of the lower layer 3b are vertically parallel to each other, but are alternately staggered with each other.

That is, the H-beam 31 of the lower layer 3b is positioned between the H-beams 31 of the upper layer 3a on a plane.

The space bar 4 interconnects and supports the H-beam 31 of the upper layer 3a and the H-beam 31 of the lower layer 3b.

Specifically, at the node where the H-beam 31 and the space bar 4 meet, the ends of the four inclined space bars 4 may be coupled to form a three-dimensional lattice.

At this time, one H-beam 31 and two space bars 4 form a triangle.

The joint 5 is provided on one side of the H-beam 31, and forms a node by bonding the space bar 4 to the H-beam 31.

The joint 5 includes a plurality of gusset plates 51 to which ends of the space bar 4 are coupled.

The gusset plate 51 may be provided in a number corresponding to the number of space bars 4 bonded to the nodes.

The outer end of the gusset plate 51 protrudes outward from the side of the H-beam 31.

The space bar 4 may be fixed to the gusset plate 51 by bolts B or the like. At this time, when the number of space bars 4 coupled to the joint 5 is large, it may be difficult to secure a space for bolt fastening.

Therefore, by protruding the end of the gusset plate 51 to the outside of the H-beam 31, it is possible to secure a sufficient bolt fastening space when the space bar 4 and the gusset plate 51 are coupled.

The gusset plate 51 may be coupled to the lower part of the H-beam 31 in the case of the upper layer 3a. In addition, in the case of the lower layer 3b, the gusset plate 51 may be coupled to the upper portion of the H-beam 31.

Since the H-beams 31 of the upper and lower layers 3a and 3b are bending members and support the construction load by their own bending stiffness, it is possible to install the roof frame without temporary support.

The ends of the upper and lower layers 3a and 3b are fixed to the upper ends of the steel pillars 1 installed on both sides, respectively.

The present invention is a double layer space frame composed of upper and lower layers 3a and 3b, and the upper layer 3a and the lower layer 3b are formed of a steel frame structure made of H-beams 31, and the upper layer 3a ) and the lower layer (3b) is a hybrid structure of steel frame + space frame connected by space bar (4).

That is, a steel frame with high member stiffness supports the load during construction to minimize temporary construction, while a space frame is formed with a space bar 4 between the upper and lower layers 3a and 3b, which are steel frames, to reduce weight and long span Anger can be realized.

Referring to Figure 3, the construction sequence of the roof frame of the present invention will be described.

First, a plurality of steel pillars 1 are installed, and both ends of the lower layer 3b of the H-beam 31 are fixed to the mutually spaced steel pillars 1 (Fig. 3(a)).

In addition, an upper layer 3a, which is an H-beam 31, is installed on the lower layer 3b. Both ends of the upper layer 3a are fixed to the steel pillar 1 (Fig. 3(b)).

Thereafter, a plurality of space bars 4 are installed to interconnect the H-beams 31 of the upper layer 3a and the lower layer 3b (Fig. 3(c)), and then a roof panel (not shown) is installed. install

4 is a perspective view showing a first embodiment of a joint, and FIG. 5 is a perspective view showing a coupling relationship between an expandable gusset plate and an H-beam.

As shown in FIGS. 4 and 5, the H-beam 31 is provided with a pair of flanges 311 located at the top and bottom, respectively, and the gusset plate 51 of the joint 5 is It extends to the web 312 of the section 31 so that one side may be fixed to the outside of the web 312 .

4 and 5 show a first embodiment of a joint 5 equipped with an expandable gusset plate 51.

When the upper layer (3a) and the lower layer (3b) are arranged by standing the H-beam 31 in the vertical direction, when the gusset plate 51 of the joint 5 is directly joined to the flange 311, the gusset plate ( There is a risk of out-of-plane buckling of the flange 311 due to the concentrated load of 51).

Therefore, by extending the gusset plate 51 to the inside of the H-beam 31, the web 312, it is possible to prevent buckling of the flange 311 at the node without a separate stiffener.

If this is explained based on the H-beam 31 of the lower layer 3b, the gusset plate 51 surrounds the upper flange 311 of the H-beam 31 so as to surround the web 312, the flange 311 It is formed larger than the width of one side of, but extends to the web 312 on the inner side and can be bonded to the side surface of the web 312 by welding or the like.

To this end, a cutout 511 may be formed in advance in the gusset plate 51 at a portion where the upper flange 311 is inserted. In addition, after installing the gusset plate 51 so that the flange 311 is inserted into the incision groove 511, upper and lower portions of the incision groove 511 may be welded and fixed.

The gusset plate 51 may extend to the other side flange 311, that is, the lower flange 311 in the case of the lower layer 3b, and be closely fixed to the upper surface of the lower flange 311.

Here, one flange means an upper flange and the other flange means a lower flange.

In this way, when the gusset plate 51 is welded and fixed to the upper and lower flanges 311 and the web 312, a sufficient welding length can be secured and nodal stress can be dispersed.

6 is a perspective view illustrating a state in which a first horizontal stiffener and a second horizontal stiffener are coupled;

As shown in FIG. 6 , a first horizontal stiffener 52 may be coupled to a position spaced apart from one side flange 311 between adjacent gusset plates 51 of the joint 5 .

In order to prevent buckling deformation of the gusset plate 51 protruding outward from the H-beam 31, a first horizontal stiffener 52 may be coupled between adjacent gusset plates 51 of the joint 5. .

The first horizontal stiffener 52 can be coupled to a position spaced outward from the flange 311 to which the joint 5 is coupled so that the first horizontal stiffener 52 can effectively support the gusset plate 51. there is. That is, in the case of the lower layer 3b, the first horizontal stiffener 52 may be coupled to a position spaced apart from the upper flange 311 by a predetermined distance upward.

As shown in FIG. 6 , a second horizontal stiffener 53 may be coupled between one flange 311 and the other flange 311 between adjacent gusset plates 51 of the joint 5 .

When the gusset plate 51 extends to the inside of the H-beam 31 and is bonded to the side surface of the web 312, the web 312 may be deformed by the stress of the gusset plate 51.

Therefore, by installing the second horizontal stiffener 53 between the neighboring gusset plates 51 on the inside of the H-beam 31, the gusset plates 51 on both sides act as one body to support each other, and at the same time effectively reduce stress. can be dispersed.

Meanwhile, as shown in FIG. 4 , a horizontal support bar 6 for connecting and supporting neighboring H-beams 31 in a horizontal direction may be coupled to the second horizontal stiffener 53 .

A horizontal support bar 6 may be installed between the horizontally adjacent H-beams 31 so as to transmit horizontal force in the upper and lower layers 3a and 3b and to prevent the H-beams 31 from lateral buckling.

At this time, the horizontal support bar 6 can be connected to the joint 5 using the second horizontal stiffener 53 .

The second horizontal stiffener 53 not only reinforces the nodal part but also serves to connect the horizontal support bar 6.

Since the horizontal support bar 6 serves as a purlin for installing a roof panel, a separate purlin installation process can be omitted.

That is, the H-beam 31 and the horizontal support bar 6 form a grid-shaped steel frame orthogonal to each other to support the roof panel.

7 is a perspective view showing a second embodiment of a joint, and FIG. 8 is a perspective view showing a third embodiment of a joint.

As shown in FIGS. 7 and 8, the gusset plate 51 does not extend to the inside of the H-beam 31, and the outer end of one side of the H-beam 31 is outside the side of the H-beam 31. It can be combined to protrude into.

At this time, as shown in FIG. 7, the joint 5 is provided with a separate side joint plate 57 in the vertical direction between the upper and lower flanges 311 of the H-beam 31 for coupling to the horizontal support bar 6. It can be. 7 is a second embodiment of the joint 5 provided with the side joint plate 57.

Alternatively, as shown in FIG. 8, the joint 5 fixes the side joint 58 of the T-shaped cross section to the web 312 by welding or bolting (B), and the side joint 58 is horizontally A support bar 6 may be connected. 8 is a third embodiment of a joint 5 having a joint plate 55 and a side joint 58.

As shown in FIG. 7 , the joint 5 may further include a shaft member 54 provided on one side of the H-beam 31 and coupled to the outer circumferential surface of the gusset plates 51 .

When the gusset plate 51 of the joint 5 is fixed only to the flange 311 of the H-beam 31, it is difficult to secure a welding length, and sufficient stress may not be transmitted.

Therefore, the shaft member 54 is provided at the center of the plurality of gusset plates 51 on one side of the H-beam 31, and the inner end of each gusset plate 51 is welded and fixed to the outer circumferential surface of the shaft member 54. there is.

Although not shown in the drawing, even when the gusset plate 51 extends to the inside of the H-beam 31, the shaft member 54 is positioned at the center of the plurality of gusset plates 51 at one side of the H-beam 31. can be combined

In this case, in order to reinforce the gusset plate 51, a first horizontal stiffener 52 may be installed on the outer end of the shaft member 54, that is, on the upper portion of the shaft member 54 in the case of the lower flange 311. At this time, the plurality of gusset plates 51 may also be coupled to the first horizontal stiffener 52 (FIG. 7).

9 is a perspective view showing a fourth embodiment of a joint, and FIG. 10 is a perspective view showing a fifth embodiment of a joint. 11 is a perspective view showing a sixth embodiment of a joint, and FIG. 12 is a perspective view showing a seventh embodiment of a joint.

As shown in FIGS. 8 to 12 , the joint 5 is provided on one side of the H-beam 31 and a joint plate 55 to which the gusset plate 51 is coupled may be further provided.

8 is a third embodiment of a joint 5 having a joint plate 55 and a side joint 58, and FIG. 9 shows a shaft member 54, a joint plate 55 and a side joint plate 57 ) is the fourth embodiment of the joint 5 provided with.

As shown in FIGS. 8 and 9, when the H-beams 31 are arranged in a vertical direction in cross section, the widths of the gusset plates 51 coupled to the flanges 311 are larger than those of the flanges 311, so that the H-beams 31 can protrude outward.

Therefore, the joint plate 55 whose width can be freely adjusted is joined to the flange 311 of the H-beam 31 so that the gusset plate 51 is joined to the joint plate 55 over the entire width.

The joining plate 55 may be fixed to the flange 311 by welding or bolt (B) joining.

When the side joint 58 is provided, a vertical stiffener 59 may be provided between the side joint 58 and the joint plate 55 at a position corresponding to the gusset plate 51 (FIG. 8). .

10 to 12 show embodiments in which the H-beams 31 are arranged in a horizontal direction.

10 is a fifth embodiment of a joint 5 provided with an expandable gusset plate 51 and a joint plate 55, and FIG. 11 is a joint tool provided with a joint plate 55 and a support plate 56 ( 5) is the sixth embodiment, and FIG. 12 is a seventh embodiment of the joint 5 in which the joint plate 55 and the support plate 56 are coupled with bolts (B).

As shown in FIGS. 10 to 12, when the H-beam 31 is arranged in a horizontal direction in cross section, the gusset plate 51 must be joined to the narrow width of the end of the flange 311, so that the bonding of the gusset plate 51 is difficult. It is difficult.

Therefore, bonding of the gusset plate 51 can be facilitated by bonding the bonding plate 55 to the end of the flange 311, that is, to the upper part of the flange 311 in the case of the lower flange 311.

In this case, on both sides of the joint plate 55, a support plate 56 tightly fixed to both sides of the left and right flanges 311 of the H-beam 31 so that the joint plate 55 can be firmly fixed to the H-beam 31 May be provided in the vertical direction (Figs. 11 and 12).

The support plate 56 may be integrally formed with the joining plate 55, and may be fixed to the H-beam 31 by welding or bolt (B) joining.

Although not shown in FIGS. 11 and 12 , the end of the horizontal support bar 6 may be coupled to the support plate 56 by extending the support plate 56 vertically for a predetermined length.

13 is a perspective view showing the coupling relationship between the space bar and the gusset plate by the over plate, and FIG. 14 is a perspective view showing the coupling state between the space bar and the gusset plate by the over plate in H-beams arranged left and right, and FIG. It is a perspective view showing the coupling state of the space bar and the gusset plate by the over plate in the H-beams arranged up and down.

As shown in FIGS. 13 to 15, a pair of overlapping plates 41 are provided at the end of the space bar 4 and fixed to both sides of the joining plate 41 and the gusset plate 51 The space bar 4 can be configured to be coupled to the gusset plate 51 by the rate 42.

When the number of gusset plates 51 provided in the joint 5 is large or the size of the joint 5 is not large, and the distance between adjacent gusset plates 51 is not sufficient, use the space bar 4 It may be difficult to bolt directly to the gusset plate 51.

Therefore, a sufficient bolt fastening work space can be secured by adjusting the distance from the junction hole 5 using the additional overplates 42 provided on both sides of the junction plate 41 and the gusset plate 51.

16 is a perspective view showing another embodiment of the space bar and the gusset plate. In some cases, the space bar 4 may be directly coupled to the gusset plate 51 by screwing instead of pin bonding.

1: Steel column 2: Roof frame
3a: upper layer 3b: lower layer
31: H-beam 311: Flange
312: web 4: space bar
41: junction plate 42: overplate
5: junction 51: gusset plate
511: cutting groove 52: first horizontal stiffener
53: second horizontal stiffener 54: shaft member
55: junction plate 56: support plate
57: side joint plate 58: side joint
59: vertical stiffener 6: horizontal support bar
B: Bolt

Claims (8)

An upper layer (3a) in which a plurality of H-beams 31 are spaced apart from each other in a horizontal direction;
A lower portion in which a plurality of H-beams 31 are spaced apart from each other in the horizontal direction so as to be spaced apart in the vertical direction from the lower part of the upper layer 3a and positioned between the H-beams 31 of the upper layer 3a on a plan view. layer 3b;
A plurality of space bars 4 interconnecting the H-beams 31 of the upper layer 3a and the H-beams 31 of the lower layer 3b; and
A joint that is provided on one side of the H-beam 31 and includes a plurality of gusset plates 51 to which the outer end protrudes outward from the side surface of the H-beam 31 and the end of the space bar 4 is coupled. (5); Roof frame, characterized in that consisting of.
In paragraph 1,
The H-beam 31 is provided with a pair of flanges 311 positioned at upper and lower portions, respectively, and the gusset plate 51 of the joint 5 extends to the web 312 of the H-beam 31. A roof frame characterized in that one side is fixed to the outside of the web 312.
In paragraph 2,
The roof frame, characterized in that the first horizontal stiffener 52 is coupled to a position spaced outwardly from one side flange 311 between the adjacent gusset plates 51 of the joint (5).
In paragraph 2,
The roof frame, characterized in that the second horizontal stiffener (53) is coupled between one side flange (311) and the other side flange (311) between the adjacent gusset plates (51) of the joint (5).
In paragraph 4,
Roof frame, characterized in that the second horizontal stiffener (53) is coupled to the horizontal support bar (6) for connecting and supporting the neighboring H-beams (31) in the horizontal direction.
In paragraph 1,
The joint (5) is provided on one side of the H-beam (31) and the roof frame, characterized in that it further includes a shaft member (54) coupled to the outer circumferential surface of the gusset plates (51).
In paragraph 1,
The joint (5) is provided on one side of the H-beam (31) and a joint plate (55) to which the gusset plate (51) is coupled is further provided.
In paragraph 1,
A junction plate 41 is provided at the end of the space bar 4, and the space bar 4 Roof frame, characterized in that coupled to the gusset plate (51).

Images