KR100582230B1 - The connection of steel one-directional truss for rectangular hollow section - Google Patents

Abstract

The steel one-way truss joint of the present invention is composed of high tensile steel bar, pin plate, up and down current square steel pipe, inclined square steel pipe, vertical square steel pipe, and K-type and N-type and T-type of flat truss and warren truss as a whole. K-type and N-type joints for steel one-way trusses use high-tensile tensile steel rods for the web material that receives only tension, and use conventional cold-formed square steel pipes and square steel pipes that are rotated 45 degrees for the web material that receives only the compressive force. One or two tension pin plates, and the upper and lower chords are joints consisting of conventional cold-formed square steel pipes and built-up square steel pipes, and the design strength of K-shaped joints having the same cross-sectional performance In order to increase the height of the main pipe and the main wall of the main pipe side with a thickness of the plate (t _p ) having a main pipe thickness or more. Consists of a vertical web material that receives tension and compression force without a web material in an inclined direction, the vertical web material uses a square steel pipe rotated by 45 degrees, and the upper and lower current joints consist of existing cold-formed square steel pipes and built-up square steel pipes. In order to increase the design strength of the T-shaped joint having the same cross-sectional performance, it is a joint reinforced with a plate thickness t _p having a main pipe thickness or more on the main pipe side wall and the main pipe upper surface.

Description

CONNECTION OF STEEL ONE-DIRECTIONAL TRUSS FOR RECTANGULAR HOLLOW SECTION}

1 is a front view showing the shape of the steel one-way truss joint formed by the high tensile steel bar and each steel member of the present invention.

2 and 3 are front, plan and perspective views of a first embodiment of the present invention.

4 and 5 are still another front view, plan view and perspective view of the first embodiment of the present invention.

6 and 7 are still another front view, plan view and perspective view of the first embodiment of the present invention.

8 and 9 are front, plan and perspective views of a second embodiment of the present invention.

10 and 11 are still another front view, top view and perspective view of a second embodiment of the present invention.

12 and 13 are still another front view, top view and perspective view of a second embodiment of the present invention.

14 and 15 are still another front view, plan view and perspective view of the first embodiment of the present invention.

16 and 17 show still another front view, a top view and a perspective view of a first embodiment of the present invention.

18 and 19 are still another front view, plan view and perspective view of the first embodiment of the present invention.

20 and 21 are still another front view, top view and perspective view of a second embodiment of the present invention.

22 and 23 are still another front view, top view and perspective view of a second embodiment of the present invention.

24 and 25 are still another front view, top view and perspective view of a second embodiment of the present invention.

26 and 27 are a front view, a plan view, and a perspective view of a third embodiment of the present invention.

28 and 29 are still another front view, top view and perspective view of a third embodiment of the present invention.

30 and 31 are still another front view, top view and perspective view of a third embodiment of the present invention.

32 and 33 are front, plan and perspective views of a fourth embodiment of the present invention.

34 and 35 show still another front view, a plan view and a perspective view of a fourth embodiment of the present invention.

36 and 37 are still another front view, top view and perspective view of a fourth embodiment of the present invention.

38 and 39 are still another front view, top view, and perspective view of a third embodiment of the present invention.

40 and 41 are still another front view, plan view, and perspective view of a third embodiment of the present invention.

42 and 43 are still another front view, top view and perspective view of a third embodiment of the present invention.

44 and 45 show still another front view, a plan view and a perspective view of a fourth embodiment of the present invention.

46 and 47 are still another front view, top view and perspective view of a fourth embodiment of the present invention.

48 and 49 are still another front view, top view and perspective view of a fourth embodiment of the present invention.

50 and 51 are a front view, a plan view, and a perspective view of a fifth embodiment of the present invention.

52 and 53 are still another front view, top view and perspective view of a fifth embodiment of the present invention.

54 and 55 are still another front view, top view and perspective view of a fifth embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: high tensile tensile steel bar

10a: Spade end of high tensile steel bar 10b: Clevis end of high tensile steel bar

11: pin plate

12: Cold-formed square steel pipe of K type upper and lower current

12a: Built-up square steel pipe of K type upper and lower current

13: Cold-formed square steel pipe which is K type inclined material

14: Cold formed square steel pipe rotated 45 degrees with K type inclined material

15: cold-formed square steel pipe of N type vertical material

16: Cold formed square steel pipe rotated 45 degrees with N type vertical material

17: cold-formed square steel pipe of N type upper and lower current

17a: Built-up square steel pipe of N type upper and lower current

18: pin connecting high tensile steel bar and pin plate

19: Reinforcement plate reinforcing the upper surface (plan surface) of main pipe of K type and N type

20: Reinforcement plate reinforcing main side wall surface (web surface) of K type and N type

21: Reinforcement plate reinforced with T-shaped main pipe sidewall (web surface)

22: Reinforcement plate reinforcing the upper surface (plan surface) of T-shaped main pipe

23: cold-formed square steel pipe rotated 45 degrees with a T-shaped vertical material

24: cold-formed square steel pipe of T-shaped upper and lower current

24a: Built-up square steel pipe of T type

Gap: The gap between the tension tube end and the compressed tube end in type K and N.

B _p : Width of reinforcement plate reinforced with flange surface in K type, N type and T type

H _p : Height of reinforcement plate reinforced web surface in K type, N type and T type

L _p : Length of reinforcement plate reinforced with flange face or web face in K type, N type and T type

t _p : Thickness of reinforcement plate reinforced with flange face or web face in type K, N and T

The present invention relates to a joint for steel one-way truss using a square steel pipe.

In particular, the present invention relates to a rectangular steel tube steel one-way truss joint for long span structure. More specifically, the existing H-shaped steel, steel pipes, and built-in (BUILT-UP) members, which are used for supporting loads in various long span structure constructions, are mainly subjected to tension without being used as web materials (slope materials and vertical materials). The present invention relates to the construction of a unidirectional truss connection of a square steel tube steel which can be replaced by a high tensile tensile steel bar in a web material.

In particular, the present invention is easy to assemble and dismantle the upper and lower chords and web material of the one-way truss frame in the abutment-free space structure, but also to secure the structural strength of the joint portion to sufficiently support the load of the long span structure, The present invention is to provide a steel one-way truss structure with easy and safe, high-durability steel frame one-way truss joints with excellent durability.

Jangspan building has been in increasing demand in recent years due to the development of industrial society, but it is highly depended on foreign technology in the design and construction stage of the Jangspan building in Korea, especially in various joints of steel one-way trusses. The performance evaluation and the details and design between the joining members are relatively poor.

It is difficult to control the quality due to the increase in the field work because it uses the existing H-shaped steel, steel pipe, built-up member, etc., which are used for load support in long span structure construction. There is a limit.

On the other hand, the present invention facilitates the assembly and disassembly of the upper and lower chords and web materials of the steel one-way truss frame in the abutment-free space structure, while ensuring the structural strength of the joint to sufficiently support the load of the long span structure as well as construction. The present invention provides an easy-to-safe, high-durability, one-way truss joint with excellent durability, and provides an overall economical angle steel tube steel one-way truss structure.

The present invention is intended to ensure the structural strength of the joint while being easy to assemble and dismantle at the joint, by using a high-tensile tensile steel rod for the pure tension member of the upper and lower chords and web material of the steel one-way truss frame in the abutment-free space structure.

In addition, the present invention is not only able to sufficiently support the roof load of the long span structure, but also easy to construct, high safety, and durable to form a steel one-way truss connection with excellent durability and deformation of the overall steel one-way truss structure To provide a system that can reduce the.

Referring to the accompanying drawings, preferred embodiments of the present invention for achieving the above object are as follows.

1 is a front view showing the overall steel one-way truss shape according to the present invention. The vertical members and the inclined members which receive compression among a plurality of web materials between the upper current square steel pipes 12 and 12a arranged inclined in the longitudinal direction of the steel one-way truss and the lower current square steel pipes 17 and 17a arranged in the horizontal direction are conventional The joints of steel one-way truss structures, which are joined by using steel pipes 13 and 15 and square steel pipes 14 and 16 rotated by 45 degrees, and the tensile material mainly subjected to tension are made of high tensile steel bars 10, 10a and 10b. It is a front view which shows.

2 and 3 show a front view, a plan view, and a perspective view of a first embodiment. Among the joints for steel one-way trusses, high tensile tension steel rods 10 are used for web materials that are only tensioned in the form of K-type, and existing cold-formed square steel pipes 13 are used for web materials that receive only compressive force, and pin plates 11 for tension are used. ) Is a joint consisting of two cold rolled square steel pipes 12 and a built-up square steel pipe 12a. 4, 5, 6, and 7 show another front view, a plan view, and a perspective view of the first embodiment, in which the joint is joined with the branch pipe to increase the design strength of the joint portion of the main pipe and the branch pipe in the form of a K-shape among the one-way truss joints. It represents a joint-like reinforced by organizing the flange surface and the web (the side walls), the plate (19, 20) having a predetermined size on the surface (L × _P B _P, L _P × _P H) and a thickness (t _p). 14 and 15 show another front view, a plan view, and a perspective view of a first embodiment, in which a high tensile tension bar end portion 10b and a tension pin plate 11 are configured. 16, 17, 18, and 19 are still another front view, plan view, and perspective view of the first embodiment, in which the main joint surface and the side of the main joint are increased in order to increase the strength of the joint at the K-type joint with one pin plate subjected to tension. It is in the form of a joint reinforced with plates 19 and 20 on the wall.

Among the web materials joined to the upper and lower chords, the compressive material is formed through the steel node, and the tension web material using the high tensile steel bar is configured through the pin node, and the fixing pin 18 is inserted into the pin hole.

8 and 9 show a front view, a plan view, and a perspective view of a second embodiment. Among the joints for steel one-way trusses, a high tensile steel bar (10) is used for a web material that is tensioned only in the form of a K-type, and a cold-formed rectangular steel pipe that is rotated 45 degrees instead of a conventional cold-formed square steel pipe (13) for a web material that receives only a compressive force. (14), the tension pin plate (11) is a joint consisting of the existing cold-formed square steel pipe (12) and the built-up square steel pipe (12a) in the upper and lower chords in the horizontal inclined direction. 11, 12, 13, and 14 show still another front view, a plan view, and a perspective view of a second embodiment of the main pipe (flange) in order to increase the design strength of the connection between the main pipe and the branch pipe in the form of a K-shape among the one-way truss joints. ) represents a surface and the side walls (webs) by abutment with a plate-like reinforcement (19, 20) having a predetermined size on the surface (L × _P B _P, L _P × _P H) and a thickness (t _p). In particular, the joint of the shape rotated 45 degrees away from the shape of the existing square steel pipe in the compressed web material provides an effect of improving the strength and deformation capacity. 20 and 21 show another front view, plan view, and perspective view of a second embodiment, in which a high tension tensile steel rod end 10b and a tension pin plate 11 are formed in one form. 22, 23, 24, and 25 show another front view, a plan view, and a perspective view of the second embodiment in order to increase the strength of the joint at the K-type joint with one pin plate subjected to tension. It is in the form of a joint reinforced with plates 19 and 20 on the side wall.

26 and 27 show a front view, a plan view, and a perspective view of a third embodiment. Among the joints for steel one-way trusses, high tensile tensile steel rods 10 are used for web materials that receive only tension in the form of N-type, and existing cold-formed square steel pipes 13 are used for web materials that receive compression force only. ) Is a joint consisting of the existing cold-formed square steel pipe 17 and the built-up square steel pipe 17a. 28, 29, 30, and 31 show another front view, a plan view, and a perspective view of a third embodiment of the main pipe (flange) in order to increase the design strength of the connection between the main pipe and the branch pipe in the form of an N-shape in the one-way truss joint; ) represents a surface and the side walls (webs) by abutment with a plate-like reinforcement (19, 20) having a predetermined size on the surface (L × _P B _P, L _P × _P H) and a thickness (t _p). 38 and 39 show still another front view, plan view, and perspective view of the third embodiment, in which a high tension tensile steel rod end 10b and a tension pin plate 11 are formed in one form. 40, 41, 42, and 43 are still another front view, plan view, and perspective view of the third embodiment, in order to increase the maximum strength and deformation capacity of the joint at an N-type joint with one pin plate subjected to tension. It is in the form of a joint reinforced with plates 19 and 20 on the upper joint surface and the side wall surface.

32 and 33 show a front view, a top view and a perspective view of a fourth embodiment. Among the joints for steel unidirectional trusses, a high tensile steel bar 10 is used for web materials that are tensioned in the form of N-type, and a cold formed square steel tube that is rotated 45 degrees instead of the existing cold-formed square steel pipes 13 for web materials that receive only compression force. (14), the tension pin plate (11) is a joint consisting of the existing cold-formed square steel pipe (17) and the built-up square steel pipe (17a) in the two horizontal pin inclined direction. 34, 35, 36, and 37 are still another front view, plan view, and perspective view of the fourth embodiment of the upper part of the main pipe to increase the design strength and rigidity of the connection between the main pipe and the branch pipe in the form of an N-type among the one-way truss joints of steel; (flange) shows a side and a side wall (web) by abutment with a plate-like reinforcement (19, 20) having a predetermined size on the surface (L × _P B _P, L _P × _P H) and a thickness (t _p). In particular, the joint of the shape rotated 45 degrees out of the shape of the existing square steel pipe in the compressed web material provides the effect of improving the strength and deformation capacity. 44 and 45 show another front view, plan view, and perspective view of a fourth embodiment, in which a high tension tensile steel rod end 10b and a tension pin plate 11 are configured. 46, 47, 48, and 49 are still another front view, plan view, and perspective view of the fourth embodiment showing the increase in maximum strength of the joint and deformation of the steel one-way truss at the N-type joint with one pin plate subjected to tension. In order to reduce the shape of the joint portion reinforced by using the plates (19, 20) on the upper joint surface and the side wall surface.

50 and 51 show a front view, a top view, and a perspective view of a fifth embodiment. Among the joints for steel one-way trusses, the cold-formed square steel pipe 23 rotated 45 degrees instead of the existing cold-formed square steel pipe is used for the vertical web material that is subjected to tension and compression as a T-shape. It is the junction part which consists of the square steel pipe 24 and the built-up square steel pipe 24a. 52, 53, 54, and 55 are still another front view, plan view, and perspective view of the fifth embodiment, in which the design strength and rigidity of the joint between the main pipe and the branch pipe are increased in the form of a T-shape among the one-way truss joints, and the joint is stable. Reinforced with plates 21 and 22 having a constant size (L _P × b _P , L _P × H _P ) and thickness (t _p ) on the upper surface of the main pipe (flange) and the side wall (web) to secure the failure mode. One junction part shape is shown. The joints of the shape rotated 45 degrees out of the shape of the existing square steel pipe in the compressed web material provide the effect of improving the strength and deformation capacity.

The present invention relates to a joint portion for long-span square steel pipe steel one-way truss is a web material that is compressed without using the existing H-shaped steel, steel pipe, built-up, etc. used for load support in various long span construction The present invention relates to the construction of a unidirectional truss connection of a square steel tube that can be replaced with a high tensile tensile steel rod using a conventional square steel tube and mainly under tension.

In particular, the present invention is easy to assemble and dismantle the web and the lower chord disposed in the horizontal direction and the lower chord disposed in the horizontal direction inclined to the longitudinal direction of the steel frame one-way truss frame in the abutment-free space structure while ensuring the structural strength and rigidity Not only can fully support the roof load, it is easy to construct, high safety, and durable steel one-way truss joints to provide an excellent overall steel economy one-way truss structure.

The joint formed by the compression material rotated 45 degrees of the existing square steel pipe provides an effect of improving the rigidity, strength and deformation capacity of the joint.

Claims (9)

Square steel pipe Steel webs under tension and webs subjected to a plurality of compressions between upper chord square steel pipes 12 and 12a arranged horizontally in a longitudinal direction in a steel truss frame and lower chorded square steel pipes 17 and 17a arranged horizontally. Square steel pipe unidirectional truss connection where the ash is formed through the steel and pin nodes, High tensile tension steel rods 10 and spade ends 10a are used for web materials receiving only tension in the form of a K-shape among the one-way truss joints of square steel pipes, and conventional cold forming square steel tubes 13 are used for web materials receiving only compressive force. The upper and lower chords, which have two tension pin plates 11 and are inclined in the longitudinal direction, are composed of existing cold-formed square steel pipes 12 and built-up square steel pipes 12a. Among the web materials joined to the upper and lower chords, the compression material is formed through the steel node, and the tension web material using the high tensile tension steel bar is configured through the pin node, and the fixing pin 18 is inserted into the pin hole. The upper surface of the main pipe (flange) and the side wall (web) to increase the design strength and to reduce the deformation of the overall steel one-way truss at the joint under tension and compression in the form of K among the square steel pipe one-way truss connections. Square steel steel frame one-way truss connection having a reinforcement plate reinforced with a certain size and thickness. 2. The square steel tube steel one-way truss connection according to claim 1, comprising a clevis end (10b) of a high tensile steel bar and one pin plate (11). A cold-formed square steel pipe (14) of which a high tensile steel bar (10) and a spade end (10a) are used for a web material receiving only tension in the form of a K-shape in a one-way truss joint of a square steel pipe (14). 2) a pin plate 11 for tension, and the upper and lower chords disposed inclined in the longitudinal direction are composed of a conventional cold-formed square steel pipe 12 and a built-up square steel pipe 12a As truss junction, Among the web materials joined to the upper and lower chords, the compressive material is formed through the steel node, and the tension web material using the high tension tensile steel bar is configured through the pin node, and the fixing pin 18 is inserted into the pin hole. Steel one-way truss K-shaped joint, which is designed to improve the design strength and reduce the deformation of the overall steel one-way truss at the joint under tension and compression. Square steel steel unidirectional truss connection with reinforcement plate reinforced with size and thickness. 4. The square steel tube steel one-way truss connection according to claim 3, comprising a clevis end (10b) of a high tensile steel bar and one pin plate (11). Of the rectangular steel pipe one-way truss joints, a tensile strength bar 10 and a spade end 10a are used for the web material receiving only tension in the form of an N shape, and an existing cold-formed square steel pipe 13 is used for the web material receiving only the compressive force. In addition, there are two tension pin plates 11, and the upper and lower chords arranged in the longitudinal direction and the horizontal direction are square steel pipe steel frame one direction consisting of the existing cold-formed square steel pipe 17 and the built-up square steel pipe 17a. As truss junction, Among the web materials joined to the upper and lower chords, the compressive material is formed through the steel node, and the tension web material using the high tension tensile steel bar is configured through the pin node, and the fixing pin 18 is inserted into the pin hole. Square steel steel one-way truss N-shaped joint, which is designed to increase the design strength and reduce the deformation of the entire steel one-way truss structure at the joint under tension and compression. Square steel steel steel unidirectional truss connection with reinforcement plate reinforced with constant size and thickness (t _p ). The rectangular steel tube steel one-way truss connection according to claim 5, comprising a clevis end (10b) of a high tensile steel bar and one pin plate (11). A cold-formed square steel pipe (14) of which a high tensile steel bar (10) and a spade end (10a) are used for a web material that receives only tension in the form of an N-shape among the steel steel one-way truss joints, and a 45 degree rotation for a web material that receives only compressive force (14). And a pin plate 11 for tensioning, and the upper and lower chords arranged in the longitudinal direction and the horizontal direction are each formed of an existing cold-formed square steel pipe 12 and a built-up square steel pipe 12a. Steel pipe steel one-way truss connection, Among the web materials to be joined to the upper and lower chords, the compressive material is formed through the steel node, and the tension web material using the high tensile steel bar is configured through the pin node, and the fixing pin 18 is inserted into the pin hole. Steel one-way truss N-shaped joint, which is designed to increase design strength and reduce deformation of the entire steel one-way truss structure at the joint under tension and compression. Steel tube steel one-way truss connection with a reinforcement plate reinforced with a constant size and thickness (t _p ). 10. A one-way truss connection according to claim 7, comprising a clevis end (10b) and a pin plate (11) of a high tensile steel bar. Among the square steel pipe one-way truss joints, a cold-formed square steel pipe 23 rotated by 45 degrees is used for the vertical web material 23 that is tensioned or compressed in the form of a T-shape. As a square steel pipe steel one-way truss joint consisting of the existing cold-formed square steel pipe 24 and the built-up square steel pipe 24a, Among the vertical web materials joined with the upper and lower chords, the compression and tension members are formed through the steel point, The upper surface of the main pipe (flange) and the side wall (web) to increase the design strength and to reduce the deformation of the overall steel one-way truss at the connection under tension or compression in the form of a T-shape of the one-way truss joint for the square steel tube Square steel tube steel one-way truss connection with reinforcement plate reinforced with constant size and thickness (21,22).

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