KR20090090016A - Truss connection structure - Google Patents

Abstract

The present invention relates to a truss joint structure, and more particularly, in a truss joint structure in which a plurality of connecting pipes are fixed between an upper chord pipe and a lower chord pipe, the upper chord pipe and the lower chord pipe are compressed at a predetermined interval. A molded part having an elliptical shape having a molded cross section is formed, and the connecting pipe is bolted to a joint part of the upper current pipe and the lower current pipe, respectively, in which both ends are compressed to be vertically fixed between the upper current pipe and the lower current pipe. Vertical pipes; The inclined material pipe is bolted to the junction of the upper current pipe and the lower current pipe, respectively, in a crimped state at both ends, and inclinedly fixed between the upper current pipe and the lower current pipe. It is about.

According to the present invention configured as described above, the vertical pipe and the slope pipe may be more easily installed between the upper current pipe and the lower current pipe, thereby greatly improving the workability of the worker and greatly reducing the manufacturing cost. In particular, greater frictional resistance is generated between both ends of the vertical pipe and the inclined pipe and the joint, so that both ends of the vertical pipe and the sloped pipe can be more firmly bolted to the joint. In addition, there is an effect that there is no fear that the lower current pipe is buckled by an external force or the like.

Description

Truss joint structure {TRUSS JOINT SYSTEM}

The present invention provides a truss joint structure in which a plurality of connecting pipes are fixed between an upper chord pipe and a lower chord pipe, and a joint having an elliptical cross section compression-molded at a predetermined interval is formed on the upper chord pipe and the lower chord pipe. The connecting pipe is a vertical pipe which is bolted to the junction of the upper current pipe and the lower current pipe, respectively, in a state in which both ends are crimped and fixed vertically between the upper current pipe and the lower current pipe; The inclined material pipe is bolted to the junction of the upper current pipe and the lower current pipe, respectively, in a crimped state at both ends, and inclinedly fixed between the upper current pipe and the lower current pipe. Is about

Specifically, since the vertical pipe and the slope pipe may be more easily installed between the upper current pipe and the lower current pipe, the workability of the worker may be greatly improved and the manufacturing cost may be greatly reduced. In particular, a greater frictional resistance is generated between both ends of the vertical pipe and the inclined pipe and the joint portion, so that both ends of the vertical pipe and the slope pipe may be more firmly bolted to the joint. The present invention relates to a truss joint structure in which a pipe is no longer buckled by an external force.

In general, a truss (truss) is a structure that is used as a roof or bridge purlin by intertwining a plurality of straight skeleton material in a triangle, the load of the structure when constructing a building, warehouse, barn, vinyl house and prefabricated house Used to reinforce strength while reducing

More specifically, the truss is largely composed of a phase current pipe; A lower current pipe positioned downward of the upper current pipe; And a plurality of connecting pipes fixed in a zigzag shape between the upper current pipe and the lower current pipe.

On the other hand, the connecting pipe is usually zigzag joined between the upper current pipe and the lower current pipe by a node connector or welding.

Here, when the connecting pipe is joined in a zigzag form between the upper current pipe and the lower current pipe by welding, the operator may connect the connecting pipe to the upper current pipe and the lower current pipe in a larger area. After the end of the pipes are cumbersomely curved, the ends of the connected pipes are welded and fixed to the upper and lower current pipes, respectively.

However, this requires a high level of skill, which makes it difficult for an operator, especially an unskilled person, to easily install the connecting pipe between the upper and lower current pipes, which in turn greatly reduces the worker's workability and furthermore, There is also a costly problem.

The present invention was created in order to solve the above problems, and because the vertical pipe and the slope pipe can be more easily installed between the upper current pipe and the lower current pipe, the worker's workability can be greatly improved. However, the manufacturing cost can be greatly reduced, and in particular, greater frictional resistance is generated between the both ends and the joint portion of the vertical pipe and the slope pipe so that both ends of the vertical pipe and the slope pipe are more firmly connected to the joint. It is an object of the present invention to provide a truss joint structure that can be bolted as well as that there is no fear that the lower current pipe will be buckled by an external force.

In order to achieve the above object, the present invention provides a truss connection structure in which a plurality of connecting pipes are fixed between an upper chord pipe and a lower chord pipe. An elliptical joint is formed, and the connecting pipe is bolted to the junction of the upper and lower chord pipes, respectively, with both ends being compressed, and vertical pipes fixed vertically between the upper and lower chord pipes. ; Truss connection structure comprising a; and the inclined material pipe is fixed to be inclined between the upper current pipe and the lower current pipe, respectively bolted to the junction of the upper current pipe and the lower current pipe in a crimped state of both ends; to provide.

Here, the "L" shaped clip is bolted to the upper surface of the joint of the phase current pipe, one surface of the "L" shaped clip is bolted to the middle purlin located in the upper direction of the phase current pipe, the "L" shaped It is preferable that the buckling preventing pipe is fixedly installed at both ends of the clip in the state in which both ends are compressed to bolt the joints of the middle purlin and the lower chord pipe to prevent the buckling of the lower chord pipe.

The present invention is a vertical pipe that is vertically fixed between the upper current pipe and the lower current pipe, and the upper current pipe and both ends of the inclined material pipe is fixed inclined between the upper current pipe and the lower current pipe, respectively; By bolting to the joint of the lower chord pipe, an operator, especially an unskilled person, can easily install the vertical pipe and the slope pipe between the upper chord pipe and the lower chord pipe. In addition, it is not only possible to process both ends of the vertical pipe and the slope pipe in a conventional manner, and then to weld the upper and lower current pipes so that the manufacturing cost is greatly reduced. There is.

Furthermore, the upper end pipe and the lower end pipe are press-formed at regular intervals, and end faces of the joints, in which both ends of the vertical pipe and the slope pipe are bolted to each other, are compressed in an elliptical shape so that the upper current pipe And both ends of the vertical pipe and the inclined pipe may be bolted to the joint portion in a larger area while the strength of the lower current pipe is maintained, and as a result, both ends of the vertical pipe and the slope pipe may be A greater frictional resistance is generated between the joints, so that both ends of the vertical pipe and the slope pipe may be more firmly bolted to the joint.

The anti-buckling pipes may be buckled by external forces due to the buckling prevention pipes which are bolted to the joints of the middle and lower chord pipes, respectively, in the state in which both ends are compressed, and are fixed to both sides of the "L" shaped clip. There is an effect that disappears.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of course, the scope of the present invention is not limited to the following examples, and various modifications can be made by those skilled in the art without departing from the technical gist of the present invention.

1 is a perspective view schematically showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA of FIG. 1.

Truss joint structure of one embodiment of the present invention is large, as shown in Figures 1 and 2, the upper current pipe 10, the lower current pipe 30 and the connecting pipe 50 is made.

Here, the upper current pipe 10 and the lower current pipe 30 are the same as in the prior art and can be easily implemented by those skilled in the art to which the present invention belongs, detailed description thereof will be omitted.

However, on the upper current pipe 10 and the lower current pipe 30 of a circular shape, as shown in FIGS. 1 to 3, the joints 11 and 31 having an elliptical cross section compression-molded at regular intervals are formed.

"형상으로 형성되는 것이 좋다.Here, the cross-sections of the joining portions 11 and 31 that are press-formed on the upper current pipe 10 and the lower current pipe 30 at a predetermined interval are "

"It is good to be shaped.

This is to allow both ends of the vertical pipe and the slope pipe to be later bolted to the joint portion 11, 31 to be described later.

"형상으로 형성되어야 하는 것은 아니며, 상기 수직재용 파이프와 경사재용 파이프의 양단부가 상기 접합부(11, 31)에 보다 넓은 면적으로 볼트접합될 수 있는 형상으로 이루어지면 족하다.However, the cross-sectional shape of the joints 11 and 31 must be "

"It does not have to be formed in a shape, and it is sufficient if both ends of the said vertical pipe and the slope pipe are formed in the shape which can be bolted to the joining part 11 and 31 in a larger area.

More specifically, the upper current pipe 10 and the lower current pipe 30 may be prefabricated in advance in a factory or the like such that the joints 11 and 31 having an elliptical cross section are compression molded at a predetermined interval on the surface.

Here, the upper current pipe 10 and the lower current pipe 30 may be made of a steel pipe pipe, etc., but is not necessarily limited thereto, the joints 11 and 31 having an elliptical cross section are compressed on the surface at regular intervals. Anything that can be molded can be used.

Next, as shown in FIGS. 1 and 2, the plurality of connection pipes 50 are largely connected to the joints 31 of the upper current pipe 10 and the lower current pipe 30 in a state where both ends are compressed. A vertical pipe 51 which is bolted and fixed vertically between the upper current pipe 10 and the lower current pipe 30; Both ends are bolted to the joints 11 and 31 of the upper current pipe 10 and the lower current pipe 30 in a crimped state, respectively, and are inclinedly fixed between the upper current pipe 10 and the lower current pipe 30. It is preferably made to include; the pipe 53 for the inclined material.

Here, the connecting pipe 50 consisting of the vertical pipe 51 and the slope pipe 53 may be prepared in advance in a state where both ends are compressed in a factory or the like.

The vertical pipe 51 and the slope pipe 53 may also be made of steel pipes, but are not necessarily limited thereto, and the upper current pipe 10 and the lower current pipe may be compressed in both ends. Any one can be used as long as it is bolted to the joints 11 and 31 of the 30 and can be fixed vertically and inclined between the upper current pipe 10 and the lower current pipe 30.

More specifically, both ends of the vertical pipe 51 and the inclined pipe 53 in the crimped state, as shown in FIG. 2, the junction 11 of the upper current pipe 10 and the lower current pipe 30, 31 and the joint 11 of the upper current pipe 10 and the lower current pipe 30 by the fixing member 70 which is fixed through both ends of the vertical pipe 51 and the slope pipe 53. , 31) can be fixedly installed.

Here, both ends of the vertical pipe 51 and the inclined pipe 53 may be more firmly fixed to the joints 11 and 31 of the upper current pipe 10 and the lower current pipe 30. The fixing member 70 has a much higher tensile strength than the ordinary bolt and is composed of a high tension bolt 71 used for friction bonding of the steel structure member, and a nut 73 screwed with the high tension bolt 71. It is good.

4 is a cross-sectional view taken along line BB of FIG. 2, and FIG. 5 is a perspective view schematically showing the truss 5 according to the present invention.

"형상으로 견고하게 고정된다.On the other hand, the vertical member pipe 51 and the slope member pipe (2) bolted to the joints (11, 31) of the upper current pipe 10 and the lower current pipe 30, respectively, by the fixing member 70 ( 53), as shown in FIG.

"It is firmly fixed in shape.

At this time, as shown in Figure 4, the lower end of the inclined pipe 53 is located between the bottom surface of the lower end of the vertical pipe 51 and the joint 31 of the lower current pipe 30, the inclined pipe ( The upper end of 53 is located at the bottom of the upper end of the vertical pipe 51.

According to the present invention configured as described above, the vertical pipe 51 and the upper current pipe 10 and the lower current pipe 30 are vertically fixed between the upper current pipe 10 and the lower current pipe 30. Both ends of the inclined pipe 53, which is fixed inclined between the two ends of the pipe member 53 are bolted to the joints 11 and 31 of the upper current pipe 10 and the lower current pipe 30, respectively, in a crimped state. The skilled person can easily install the vertical pipe 51 and the inclined pipe 53 between the upper current pipe 10 and the lower current pipe 30 can be greatly improved the workability of the worker In addition, after machining both ends of the vertical pipe 51 and the inclined pipe 53 in a curved manner as in the prior art, there is no need to weld the upper current pipe 10 and the lower current pipe 30. Production cost It has the advantage that one can be greatly reduced.

Furthermore, the joint part 11 is compression-molded on the upper current pipe 10 and the lower current pipe 30 at predetermined intervals, and both ends of the vertical pipe 51 and the slope pipe 53 are bolted to each other. , 31) is formed in an elliptical shape, so that both ends of the vertical pipe 51 and the slope pipe 53 are maintained with the strength of the upper current pipe 10 and the lower current pipe 30 maintained. A wider area can be bolted to the joints 11 and 31 as well as a greater friction between both ends of the vertical pipe 51 and the warp pipe 53 and the joints 11 and 31. Resistance is also generated so that both ends of the vertical pipe 51 and the slope pipe 53 can be more firmly bolted to the joints (11, 31).

Next, as shown in FIGS. 1 to 4, an “L” shaped clip 90 may be bolted to the upper surface of the joint 11 of the phase current pipe 10.

More specifically, the bottom of the "L" shaped clip 90 is the bottom of the "L" shaped clip 90, the joint 11 of the phase current pipe 10 and the vertical member for The phase current pipe is formed by the fixing member 70 including a high tension bolt 71 passing through an upper end of the pipe 51 and the pipe 53 for warp members and a nut 73 screwed to the high tension bolt 71. It is possible to be bolted to the upper surface of the bonding portion 11 of the (10).

In this state, one surface of the "L" shaped clip 90 is bolted to the middle purlin 100 positioned horizontally in the upper direction of the phase current pipe 10 as shown in FIG. 5.

Here, one surface of the "L" -shaped clip 90 also, as shown in Figure 2, the high-tension bolt 71 and the high-tension bolt (Th) passing through one surface of the "L" -shaped clip 90 and the middle purlin 100 ( By the fixing member 70 made of a nut 73 is screwed with the 71 can be bolted to the middle purlin (100).

At this time, as shown in Figures 1, 2, 3, 5 anti-buckling pipe 130 to prevent the buckling generated in the lower current pipe 30 by the external force, etc. in both sides of the "L" shaped clip 90 It is good to be fixedly installed.

Here, the buckling prevention pipe 130 is joined to the middle purlin 100 and the lower chord pipe 30 in a state in which both ends are compressed so as to be located at both sides of the "L" shaped clip 90. 31 is bolted to prevent buckling of the lower chord pipe 30.

Here, the buckling prevention pipe 130 may be prepared in advance in a factory or the like in a state in which both ends are compressed.

The buckling prevention pipe 130 may also be made of a steel pipe, but is not necessarily limited thereto, and any buckling prevention pipe 130 may be used as long as it can prevent buckling of the lower current pipe 30.

More specifically, the upper end portion of the buckling prevention pipe 130 in the crimped state, as shown in FIG. 2, the high tension bolt 71 and the high tension force penetrating the upper end portion of the buckling prevention pipe 130 and the middle purlin 100. The bolt member 71 may be bolted to the middle purlin 100 by the fixing member 70 formed of a nut 73 screwed to the bolt 71.

In addition, the lower end of the buckling prevention pipe 130 in the crimped state is bolted to the joint 31 of the lower current pipe 30 to be located on the upper surface of the lower end of the vertical pipe (51), wherein As shown in FIG. 2, the lower end of the buckling prevention pipe 13 is a lower end of the buckling prevention pipe 130, the lower end of the vertical pipe 51 and the slope pipe 53, and the lower current pipe 30. The joint 31 of the lower chord pipe 30 by the fixing member 70 made of a high tension bolt 71 passing through the joint 31 and a nut 73 screwed with the high tension bolt 71. To be bolted together.

As described above, both ends of the buckling prevention unit is fixed to both sides of the "L" shaped clip 90 by bolting to the joints 31 of the middle purlin 100 and the lower chord pipe 30, respectively. Due to the pipe 130, there is no advantage that the lower current pipe 30 may be buckled by an external force or the like.

1 is a perspective view schematically showing an embodiment of the present invention,

Figure 2 is an exploded perspective view of Figure 1,

3 is a cross-sectional view taken along the line AA of FIG. 1,

4 is a cross-sectional view taken along the line B-B of FIG.

5 is a perspective view schematically showing the truss according to the present invention.

*** Explanation of symbols for main parts of drawing ***

5; Truss, 10; Phase current pipe,

11, 31; Junction, 30; Lower current pipe,

50; Connecting pipe, 51; Vertical pipes,

53; Warp pipe, 70; Fixed member,

71; High tension bolt, 73; nut,

90; "L" shaped clip, 100; Midori,

130; Buckling prevention pipe.

Claims (2)

In the truss connection structure in which a plurality of connecting pipes are fixed between the upper chord pipe and the lower chord pipe, On the upper chord pipe and the lower chord pipe, a joint portion having an elliptical cross section compression molded at a predetermined interval is formed, The connecting pipe is a vertical member pipe which is bolted to the junction of the upper current pipe and the lower current pipe, respectively, in a state in which both ends are compressed and vertically fixed between the upper current pipe and the lower current pipe; And an inclined pipe which is bolted to the junction of the upper current pipe and the lower current pipe, respectively, in a crimped state at both ends thereof, to be inclinedly fixed between the upper current pipe and the lower current pipe. The method of claim 1, "L" shaped clip is bolted to the upper surface of the joint of the phase current pipe, One surface of the "L" shaped clip is bolted to a middle purlin located above the phase current pipe, Both sides of the "L" -shaped clip in the state in which both ends are crimped, respectively, bolted to the junction of the middle and the lower chord pipe, the buckling preventing pipe for preventing buckling of the lower chord pipe is fixedly installed Truss connection structure.

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