KR20110107430A - Joint of truss - Google Patents

Joint of truss Download PDF

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Publication number
KR20110107430A
KR20110107430A KR1020100026525A KR20100026525A KR20110107430A KR 20110107430 A KR20110107430 A KR 20110107430A KR 1020100026525 A KR1020100026525 A KR 1020100026525A KR 20100026525 A KR20100026525 A KR 20100026525A KR 20110107430 A KR20110107430 A KR 20110107430A
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KR
South Korea
Prior art keywords
steel pipe
joint
pipe joint
truss
cross
Prior art date
Application number
KR1020100026525A
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Korean (ko)
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KR101155642B1 (en
Inventor
김성원
나종문
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김성원
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Application filed by 김성원 filed Critical 김성원
Priority to KR1020100026525A priority Critical patent/KR101155642B1/en
Publication of KR20110107430A publication Critical patent/KR20110107430A/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
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The present invention relates to a truss joint, and more particularly, in a truss joint in which steel pipes are joined to each other to form a roof-shaped structure, the truss joint includes: a first steel pipe joint that protrudes so that a steel pipe can be joined to a cross section; The second steel pipe joint is formed adjacent to the first steel pipe joint, and protruded so that the steel pipe can be joined to the cross section, wherein the first steel pipe joint and the second steel pipe joint are integrally formed by a casting manufacturing method. It is related with the truss joint which improved stability.

Description

Joint of truss

The present invention relates to a truss joint, and more particularly, in a truss joint formed by joining steel pipes or steel pipes and lugs to each other by welding or the like, so that the first steel pipe joint and the second steel pipe joint or lugs are integrally formed by casting or the like. The present invention relates to a truss joint which is easy to manufacture by adjusting the strength and improves stability by adjusting the strength.

Typically, trusses are structures formed in a lattice shape by arranging steel pipes to cross each other over a large space, such as a roof of a bridge or a dome.

In addition, in order to manufacture a large truss structure, a plurality of truss joints are required to allow a plurality of steel pipes to be mutually coupled, a method of welding a second steel pipe joint member on the outer surface of the first steel pipe joint member to produce a truss joint. Has been mainly used.

1 shows a configuration of a conventional truss joint, referring to the drawing, the truss joint is composed of a first steel pipe joint member 10 and a second steel pipe joint member 20, and the first steel pipe joint member 10. The cross section of the second steel pipe joining member 20 is formed in accordance with the outer surface shape, and is then connected by welding.

However, in the case of the truss joint manufactured by welding as in the prior art, the welding environment is poor, and requires high skill of the operator, and the welding parts are overlapped to generate a large residual stress in the joint, and the acute angled joint of the thin member is produced. Due to the stress concentration phenomenon due to this can not be avoided there is a problem that the strength of the truss joint is weakened. In particular, it is very fragile due to the decrease in fatigue strength.

In addition, in order to form a roof-shaped truss structure, the second steel pipe joint member is inclinedly welded to the first steel pipe joint member to form a truss joint, wherein the second steel pipe joint member is adapted to the shape of the first steel pipe joint member. Since the cross section is welded by cutting the shape, the inclination angle is shifted or the whole cross section is hard to be uniformly adhered, and thus there is a problem that the welding operation becomes difficult.

The present invention has been made to solve the above problems, the truss joint that can join a plurality of steel pipes are formed integrally by a casting method or the like, so that the residual stress and stress concentration due to overlapping welding does not occur, An object of the present invention is to provide a truss joint that can increase the strength of the structure to improve the stability of the entire structure.

In order to achieve the above object, the present invention is a truss joint in which steel pipes are joined to each other to form an arcuate truss structure, the truss joints, the first steel pipe joints protruding so that the steel pipes can be joined to the cross-section, It is formed adjacent to the first steel pipe joint portion, and consists of a second steel pipe joint portion protruding so that the steel pipe can be joined to the cross section, characterized in that the first steel pipe joint portion and the second steel pipe joint portion is formed integrally by the casting method.

Here, the said 2nd steel pipe junction part is formed in multiple numbers, It is characterized by the above-mentioned.

In addition, the first steel pipe joint or the second steel pipe joint is characterized in that the groove is formed inward to reduce the weight.

The first steel pipe junction and the second steel pipe junction have reinforcement with curvature at adjacent portions.

In addition, the first steel pipe joint or the second steel pipe joint is characterized in that the cross-sectional shape is any one of a polygonal, elliptical or circular shape.

The first steel pipe joint or the second steel pipe joint is characterized by a smaller cross-sectional area of the groove toward the inner side.

Moreover, the said 1st steel pipe junction part or a 2nd steel pipe junction part is characterized in that the edge of the edge tapered shape.

The first steel pipe joint or the second steel pipe joint is characterized in that the inner side of the tip protrudes in the longitudinal direction.

Finally, a lug is protruded to an outer surface of the first steel pipe joint or the second steel pipe joint.

According to the present invention of the configuration described above, the following effects can be expected.

First, since the truss joint is formed by the casting method so that the first steel pipe joint and the second steel pipe joint are integrated, residual stress and stress concentration due to overlap welding are not generated, and the strength of the joint is increased by the conventional welding method. There is an effect that can provide a truss joint that can improve the stability of the entire structure.

In addition, as described above, it is possible to mass-produce a truss joint having a constant shape by casting or the like in the same manner, so that the operator does not need to weld it one by one, thereby achieving uniform quality.

1 is a configuration diagram of a truss joint according to the prior art.
2 is a perspective view of a truss joint according to a preferred embodiment of the present invention.
Figure 3 (a) is a perspective view of a truss joint according to a preferred embodiment of the present invention, Figure 3 (b) is a cross-sectional view of AA 'of Figure 3 (a).
4 is a perspective view of a truss joint according to a preferred embodiment of the present invention.
5 is a perspective view of a truss joint according to a preferred embodiment of the present invention.
6 is a perspective view of a truss joint according to a preferred embodiment of the present invention.
7 is a perspective view of a truss joint according to a six preferred embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

The present invention relates to a truss joint in which steel pipes are coupled to each other to form an arch-shaped structure. Looking at the truss joint as follows.

First, Figure 2 shows a perspective view of a truss joint according to a preferred embodiment of the present invention.

As shown, the truss joint of the present invention is largely composed of the first steel pipe joint 10 and the second steel pipe joint 20, the first steel pipe joint 10 and the second steel pipe joint 20 by a casting manufacturing method. ) Is manufactured to be integrally formed.

First, the first steel pipe joint 10 is formed to protrude so that the steel pipe can be welded to the end section.

Next, the second steel pipe joint 20 is formed adjacent to the first steel pipe joint 10, is formed to protrude to the first steel pipe joint 10 so that the steel pipe is welded to the end cross section. do.

Here, the cross-sectional shape of the first steel pipe joint 10 and the second steel pipe joint 20 may be any shape, such as polygonal, oval or circular, but the truss structure is formed by joining the steel pipes, so that the In order to correspond to the shape, the cross-sectional shape of the first steel pipe joint 10 and the second steel pipe joint 20 was limited to a circular shape.

The second steel pipe joint 20 may be formed such that one or a plurality of steel pipes protrude from the first steel pipe joint 10 regardless of the number of steel pipes.

On the other hand, it is preferable that the adjacent portion between the first steel pipe joint 10 and the second steel pipe joint 20 is formed to have a smooth curvature, so that it is easy to manufacture and further reinforces the strength.

The present invention is characterized in that the first steel pipe joint 10 and the second steel pipe joint 20 is formed integrally by a casting method, which is compared to the welded joint of the conventional truss joint, the residual by the overlap welding It is a truss joint that can improve the stability of the entire structure by increasing the strength of the joint without stress or stress concentration. In addition, it is possible to mass-produce a truss joint of a certain shape in the same way, there is an advantage that a uniform quality is obtained because the operator does not have to weld one by one.

In addition, the second steel pipe joint 20 having an inclined shape to the first steel pipe joint 10 may be easily manufactured, and so on.

Figure 3 (a) is a perspective view of a truss joint according to a preferred embodiment of the present invention, Figure 3 (b) is a cross-sectional view of AA 'of Figure 3 (a).

As shown, the first steel pipe joint 10 and the second steel pipe joint 20, the groove 30 is formed to the inside to reduce the weight and to reduce the material.

Of course, it is preferable to perform the groove 30 by a casting method. However, when the casting production is difficult, the groove 30 may be dug out using a mechanical method.

Meanwhile, the first steel pipe joint 10 or the second steel pipe joint 20 may be formed in a shape in which the cross-sectional area of the groove 30 gradually decreases toward the inside, thereby facilitating manufacture, and accordingly, the strength of the truss joint Can be further improved.

4 is a perspective view of a truss joint as a third preferred embodiment according to the present invention.

As shown in FIG. 3, the configuration of the truss joint is the same as that of the second embodiment of FIG. 3, but the edge of the first steel pipe joint 10 or the second steel pipe joint 20 is tapered. It is characterized by an inclined shape towards the center.

Accordingly, when the steel pipe is butt welded to the end of the first steel pipe joint 10 or the second steel pipe joint 20 is in close contact, it is possible to form a welding bead sufficient as the empty space that is inclined to contact.

5 is a perspective view of a truss joint as a preferred embodiment according to the present invention.

As shown, the outer shape of the truss joint of the second embodiment of FIG. 3 described above is the same, but the end shape of the first steel pipe joint 10 or the second steel pipe joint 20 is protruded in the longitudinal direction. It is characterized in that the shape.

Here, the inner side of the end of the first steel pipe joint 10 or the second steel pipe joint 20 is protruded in the longitudinal direction can be fitted with the pipe-shaped steel pipe and the welding work on the interface to the steel pipe and It is possible to reinforce the strength of the portion joined between the truss joints.

6 is a perspective view of a truss joint which is a fifth embodiment according to the present invention.

As shown in FIG. 3, the configuration of the truss joint according to the second embodiment of FIG. 3 is the same as that of the truss joint, but the lugs 40 protrude from the contour of the first steel pipe joint 10 or the second steel pipe joint 20. It is characterized by attaching.

Here, the lug 40 is preferably formed in the form of a plate, it is preferable to form a hole so that the tension member or compression member can be fastened.

In addition, one or more pieces of the lug 40 may be used as necessary, and may be integrally manufactured by casting or the like. However, when workability is difficult, welding may be attached.

7 is a perspective view of a truss joint as a sixth preferred embodiment according to the present invention.

As shown in FIG. 3, the configuration of the truss joint is the same as that of the second embodiment of FIG. 3, but the first steel pipe joint 10 or the second steel pipe joint 20 is joined in the same direction, and a lug is formed on the outer surface thereof. It is an example which comprised the truss joint to which 40 was joined.

As described above, the present invention allows the truss joints to be manufactured by a manufacturing method such as casting so that the first steel pipe joints and the second steel pipe joints to which the steel pipes are joined are formed to improve the stability of the truss joints, and have a uniform quality. It can be seen that it is a basic technical idea to provide a truss joint of the product, and within the scope of the basic idea of the present invention, many other modifications are possible for those skilled in the art. to be.

10: first steel pipe joint 20: second steel pipe joint
30: home 40: rug

Claims (9)

In the truss joint that the steel pipes can be bonded to each other to form a roof-shaped structure,
The truss joint,
The first steel pipe joint 10 is formed to protrude so that the steel pipe can be joined to the cross-section, the second steel pipe joint 20 is formed adjacent to the first steel pipe joint to protrude so that the steel pipe can be bonded to the cross-section, A truss joint, characterized in that the first steel pipe joint and the second steel pipe joint are integrally formed by a casting manufacturing method. The method of claim 1,
The second steel pipe joint 20,
A truss joint, characterized in that a plurality is formed. The method of claim 1,
The first steel pipe joint 10 or the second steel pipe joint 20,
Truss joint, characterized in that the groove 30 is formed inward to reduce the weight. The method of claim 1,
The first steel pipe joint 10 and the second steel pipe joint 20,
Truss joint, characterized in that the reinforcement having a curvature in the adjacent portion. The method according to any one of claims 1 to 4,
The first steel pipe joint 10 or the second steel pipe joint 20,
Truss joint, characterized in that the cross-sectional shape is any one of polygonal, oval or circular shape. The method of claim 3,
The first steel pipe joint 10 or the second steel pipe joint 20,
Truss joint, characterized in that the cross-sectional area of the groove 30 becomes smaller toward the inner side. The method according to any one of claims 1 to 4,
The first steel pipe joint 10 or the second steel pipe joint 20,
Truss joint characterized in that the edge of the end is tapered shape. The method according to any one of claims 1 to 4,
The first steel pipe joint 10 or the second steel pipe joint 20,
Truss joint, characterized in that the inner side of the end is protruding in the longitudinal direction. The method according to any one of claims 1 to 4,
On the outer surface of the first steel pipe joint 10 or the second steel pipe joint 20,
Truss joint, characterized in that the lug 40 is attached to protrude.
KR1020100026525A 2010-03-25 2010-03-25 Joint of truss KR101155642B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100026525A KR101155642B1 (en) 2010-03-25 2010-03-25 Joint of truss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100026525A KR101155642B1 (en) 2010-03-25 2010-03-25 Joint of truss

Publications (2)

Publication Number Publication Date
KR20110107430A true KR20110107430A (en) 2011-10-04
KR101155642B1 KR101155642B1 (en) 2012-06-13

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Application Number Title Priority Date Filing Date
KR1020100026525A KR101155642B1 (en) 2010-03-25 2010-03-25 Joint of truss

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR790001877B1 (en) * 1974-01-01 1979-12-27 다니구찌 가나메 Joint of steel pipe structure
KR0133193Y1 (en) * 1996-07-23 1998-12-15 이동락 Device for binding the pipes in the vinylhouse
KR200229399Y1 (en) * 2001-01-27 2001-07-19 대영제과제빵기계공업주식회사 Device for connecting conners of rectangular pipes
JP4576488B2 (en) * 2006-12-20 2010-11-10 沖縄県 Synthetic resin spherical joint, its manufacturing method and manufacturing apparatus

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