KR101669441B1 - Hinge joint of steel pipe truss structure, steel pipe truss structure therewith and the steel pipe truss structure construction method therefor - Google Patents

Hinge joint of steel pipe truss structure, steel pipe truss structure therewith and the steel pipe truss structure construction method therefor Download PDF

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Publication number
KR101669441B1
KR101669441B1 KR1020150189677A KR20150189677A KR101669441B1 KR 101669441 B1 KR101669441 B1 KR 101669441B1 KR 1020150189677 A KR1020150189677 A KR 1020150189677A KR 20150189677 A KR20150189677 A KR 20150189677A KR 101669441 B1 KR101669441 B1 KR 101669441B1
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South Korea
Prior art keywords
steel pipe
plate
truss structure
steel
downstream
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KR1020150189677A
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Korean (ko)
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원태건
이현석
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주식회사 하이드로코리아
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D6/00—Truss-type bridges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/30—Metal

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention relates to a hinge point portion between a hinge point portion and an inclined member connected to an upper and a lower portion of a truss structure using a steel pipe. The hinge portion of the truss structure, which can be assembled easily, The hinge knocking point portion is a bending member extending in the longitudinal direction so as to cover the upper surface of the presenting steel pipe and the lower steel pipe and is inserted into a slot groove formed in a slanting steel pipe An arc-shaped connecting plate in which the bottom surfaces of both of the gusset connecting plates are inclined and integrated on the upper surface; And a rear reinforcing plate in the form of a vertical plate formed in a direction extending from the arc-shaped connecting plate on the back surface of the arc-shaped connecting plate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge point portion of a steel pipe truss structure, a steel pipe truss structure manufactured using the steel pipe truss structure, and a method of constructing the steel pipe truss structure using the steel pipe truss structure.

The present invention relates to a hinge point portion of a steel pipe truss structure, a steel pipe truss structure manufactured using the same, and a construction method thereof. More specifically, the present invention relates to a hinge point portion between a slant member connected to an upper and a lower portion of a truss structure using a steel pipe, and a steel pipe truss structure A hinge point portion, a steel pipe truss structure manufactured using the same, and a construction method thereof.

FIG. 1A shows a reinforcing structure of a conventional steel pipe branch portion.

That is, when excessive compression is applied to the pipe 2 in the steel pipe structure formed by joining the pipe 2 to the main pipe 1, the thickness of the main pipe 1 also becomes thick, Is integrally formed on the end surface of the pipe 2 and the reinforcing plate 5 is welded to the upper surface of the main pipe.

Further, in order to minimize the thickness of the main steel pipe, a filler such as non-shrinkable mortar is further filled therein.

It can be seen that the reinforcement plate 5 is formed in an arcuate shape in order to minimize the thickness of the branch pipe between the earth pipe and the main pipe and to minimize the thickness of the working load. However, this can be said to be based on a strong structure.

1B shows a conventional composite truss girder structure in which a steel truss material 13 between a concrete top plate 11 and a bottom plate 12 is connected by a joining point 14.

The steel truss member 13 is provided with a lid 18 on its end face and the connecting plate 16 is inserted into the end face of the steel truss member 13 in the form of an inclined vertical plate and connected to the gusset plate 15 by welding. .

It can be seen that the connecting point 14 is composed of a gusset plate and a connecting plate so that the concrete upper plate and the lower plate can be joined together with the steel truss member close to the hinge connection.

FIG. 1C is an illustration of a truss steel girder 20 used in the conventional FCM method.

That is, a steel pipe or a section steel made of a steel material is used for both the upper current 21, the slope material 23 and the lower current 26 of the truss girder. Particularly, And the slant material is a steel pipe.

That is, the vertical connecting plate 25, whose upper end is fitted to the gusset connecting plate 24 inserted into the lower end of the inclined material and which is welded to the inner side surface between the U-shaped channel steel, And the upper and lower currents are connected to the slope member.

As a result, it can be seen that the pointed portion of the truss structure can be formed by a hinge structure. However, it can be seen that most of the truss structures are formed by welding or sandwiching the connecting plate and the gusset plate formed on the end surface of the inclined material. When a truss structure is fabricated with such a structure, assembly work of the upper and lower beams becomes complicated, and therefore, the workability of the truss structure is inevitably lowered due to on-site assembly.

Accordingly, it is possible to form a hinge structure, which is a connecting portion between the current upper and lower ends of the steel pipe truss structure and the slope member, by simplifying the assembling work of the slant member and the upper and lower members. The present invention provides a hinge point portion of a steel pipe truss structure and a steel pipe truss structure manufactured using the same.

In order to solve the above problems,

Preferably, the arc-shaped connecting plate is integrally formed on the upper surface of the lower surface of the two-gusset connecting plates inserted into the slot groove formed in the inclined steel pipe so as to extend in the longitudinal direction so as to cover the upper surfaces of the present-side steel pipe and the lower steel pipe. And a rear reinforcement plate in the form of a vertical plate formed in the back surface of the arc-shaped connection plate in the direction of extension of the arc-shaped connection plate.

Also,

Two phase steel pipes are separated from each other and connected to each other by using upper horizontal bracing. Two bottom steel pipes are separated from each other and connected to each other by using a horizontal horizontal bracing to form a flat member; And a slant member connected between the upper and lower current steel pipes and the lower steel pipe upper and lower by the hinge point gap portion (A), respectively.

Also preferably,

(a) Two horizontal pipes are separated from each other, and upper horizontal bracing is used to connect them to each other. The upper horizontal pipe and the two horizontal pipes are separated from each other by a horizontal horizontal bracing A slant member including a hinge point portion (A) connected between a bottom current generated by a flat member and a top and bottom current steel pipe and a bottom steel pipe connected to each other;

(b) bringing the rear reinforcing plate of the hinge point dividing point portion (A) into the slot connecting groove formed on the upper surface of the lower current portion in the longitudinal direction of the downstream steel pipe, Inserting the arc-shaped connecting plate into the formed slot connecting groove and fixing the arc-shaped connecting plate to the surface from the outside of the presenting steel pipe and the downstream steel pipe; (c) inserting the rear reinforcing plate of the hinge point dividing point portion (A) into the slot connecting groove formed in the longitudinally extending bottom surface on the upper surface of the upper current surface of the inclined material fixed at the lower end, To the surface of the steel pipe; And a step (d) of mounting a steel pipe truss structure fabricated by including the hinge point portion (A) on the bridge substructure, Thereby providing a method of constructing a steel pipe truss structure manufactured by using a point portion.

According to the present invention, it is possible to manufacture the steel pipe truss structure more quickly and economically by separately manufacturing the upper, lower, and lower sloping parts of the steel pipe truss structure and assembling by simple welding of the collar portions at the site.

In addition, a stiffener for supporting the steel pipe truss structure can be formed by forming a stiffener at the bottom end of the steel pipe truss structure so that it can be easily mounted on the insert plate of the permanent bridge support.

FIG. 1A is a reinforcing structure of a conventional steel pipe branch portion; FIG.
Fig. 1B is a schematic view of a conventional composite truss girder,
1C is a structural perspective view of a truss steel girder used in the conventional FCM method,
FIGS. 2A, 2B, and 2C are a perspective view of a steel pipe truss structure, a perspective view of a hinge knocking portion,
FIGS. 3A, 3B and 3C are assembly drawings of a steel pipe truss structure according to the present invention,
4A and 4B are flowcharts of a method of constructing a steel pipe truss structure using a hinge knocking portion of a steel pipe truss structure according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Steel pipe truss structure 100 and hinge point portion (A)]

FIGS. 2A, 2B, and 2C are a perspective view of a steel pipe truss structure 100, a perspective view of a hinge point portion A, and a perspective view of a fringe support device 140 of the present invention.

The steel pipe truss structure 100, as shown in FIG. 2A,

A phase current 110 made of a flat member connected to each other by using an upper horizontal bracing 112 in a state where two presenting steel tubes 111 are spaced apart from each other; A lower case 130 made of a flat member and connected to each other by using a lower horizontal bracing 132 in a state where the two downstream steel pipes 111 are spaced apart from each other; And an inclined member 120 connected between the upper and lower side of the presenting steel pipe 111 and the lower steel pipe 131 by the hinge pointing point portion A respectively.

First, the phase current 110 is formed as a flat member by connecting the two upright steel pipes 111 with each other by using the upper horizontal bracing 112 in a state where the two pipes 102 are separated from each other as shown in FIG.

At this time, the upper horizontal bracing 112 is fixed between the two vertical connecting plates 112a formed on the respective presenting steel pipes 111 and the two vertical connecting plates 112a by fasteners such as bolts and nuts And a protruding vertical connecting plate 112b.

When the protruding vertical connecting plates 112b are fastened to each other between the inner side surfaces of the manifold steel pipe 111 by means of fasteners such as bolts and nuts using the cross-linking member 112c, the length of the cross- The upper horizontal bracing 112 can be manufactured corresponding to the separation distance of the steel pipe, and it is possible to manufacture the upper horizontal bracing 112 with a flat member.

At this time, it is preferable that the extension length L of the manifold steel pipe 111 is made to match the steel pipe truss structure 100, and the present steel pipes 111 can be connected to each other if necessary.

In addition, a plurality of slot connecting grooves 113 extending in the longitudinal direction of the steel pipe for connecting the slant member 120 are formed in the respective upright steel pipes 111.

The lower current 130 is connected to the lower portion of the upper current 110 by the inclined member 120, and the shape is not different from the upper current 110.

That is, the two horizontal steel pipes 131 are separated from each other and are connected to each other by using the lower horizontal bracing 132 to be a flat member.

The lower horizontal bracing 132 is fixed between the two vertical connecting plates 132a and the vertical connecting plates 132a formed on the respective downstream steel pipes 131 by fasteners such as bolts and nuts And a protruding vertical connecting plate 132b.

When the projecting vertical connecting plate 132b is fastened between the inner side surfaces of the low profile steel pipe 131 by means of fasteners such as bolts and nuts by using the section connecting members 132c, the length of the section connecting members 132c is adjusted So that the lower horizontal bracing 132 can be manufactured in correspondence with the distance of the steel pipe, which is advantageous in that it is very easy to load since it is a flat member.

At this time, it is preferable that the extension length L of the downstream steel pipe 131 is also made to match the steel pipe truss structure 100, and if necessary, the downstream steel pipe 131 can be connected to each other.

In addition, a plurality of slot connecting grooves 133 extending in the longitudinal direction of the steel pipe for connecting the slant member 120 are formed on each of the downstream steel pipes 131.

2A and 2B, the upper ends of the two inclined steel pipes 121 are gathered together in an inverted V-shape, and the lower ends thereof are connected to each other by an inverted V-shaped inclined member and arc- (123).

The gusset connecting plate 122 is inserted into the slot groove 125 in the form of a groove cut from the upper surface and the lower surface of the slant steel pipe 121 adjacent to the gusset connecting plate 122, 123 on the upper surface thereof.

At this time, a back reinforcement plate 124 in the form of a vertical plate is integrally formed with the arc-shaped connection plate 123 on the back surface of the arc-shaped connection plate 123 connected to the both-

Since the inclined steel pipe 121 is integrally formed by the arc-shaped connecting plate 123 and the gusset connecting plate 122, the rear reinforcing plate 124 is connected to the sloped steel pipe 111 and the slotted steel pipe 131 The arc connection plate 123 is inserted into the groove 113 and the slot connection groove 133 and the slot connection groove 113 of the upright steel pipe 111 and the down stream pipe 131 It can be seen that the hinge point gap portion A is formed by being fixed to the surface by welding.

2C, the gusset connecting plate 122 in the shape of a plate extends in the axial direction of the inclined steel pipe 121 so that the gusset connecting plate 122 is in contact with the axial direction of the upright steel pipe 111 and the downfall steel pipe 131 So that it can serve as a hinge as a weak axis.

The load transferred by the gusset connecting plate 122 is dispersed in the arc-shaped connecting plate 123 and the arc-shaped connecting plate 123 is connected to the present-side steel pipe 111 and the downstream steel pipe 131 It is understood that the load is transmitted.

The rear reinforcing plate 124 formed in the arc shaped connecting plate 123 inside the presenting steel pipe 111 and the downstream steel pipe 131 is a vertical plate formed in the extending direction of the arc shaped connecting plate 123, So as to reinforce the rigidity with respect to the load.

Accordingly, the hinge point portion A according to the present invention can be hinge-connected to the arc-shaped connecting plate 123 while the arc-shaped connecting plate 122 is hinged to the arc-shaped connecting plate 123, The connection process is simplified, and the load distribution and reinforcement effect by the arc-shaped connecting plate is enabled by the rear reinforcement.

The load is transmitted in the form of an axial force and the bending moment is not generated by the connecting structure of the slant member 120 by the hinge point gap portion A and the phase current 110 and the bottom current 130, It is possible to optimize the cross section, which is a very favorable structure for manufacturing, transporting and constructing the steel pipe truss structure by the upper, lower, and lower slopes.

At this time, a bottom slot groove 135 is further formed in the downstream steel pipe 131 constituting the both ends end current 130 of the steel pipe truss structure 100, and the back reinforcement plate 124 is formed inside the downstream steel pipe 131 And is connected to the fulcrum support device 140 to be supported by a bridge support formed at a fulcrum portion of the steel pipe truss structure 100.

As shown in FIG. 2D, the fulcrum supporting device 140 includes a pair of connecting plates 141 installed to penetrate the bottom slot groove 135 formed in the bottom of the downstream steel pipe. A support bottom plate 142 for supporting both connection plates 141 extending to the lower portion of the downstream steel pipe 131; And an inner reinforcing plate 143. [0086]

The fulcrum support device 140 is installed at the end of the steel pipe truss structure 100. The fulcrum support device 140 is mounted on the bridge support 210, So that longitudinal sliding is possible.

As a result, the present invention can be easily assembled and manufactured by using the hinge point inclined portion (A), which is made of a round steel pipe for the present, intermediate, and bottom currents, so that it is easy to manufacture and has both constructability and structural advantages.

[Assembly of Steel Pipe Truss Structure 100]

FIGS. 3A, 3B and 3C show the assembling procedure of the steel tube truss structure 100. FIG.

First, as shown in FIG. 3A,

A phase member 110, which is a flat member made of an upper horizontal bracing 112 between the inner side surfaces of the manifold steel pipe 111,

Between the inner side surface of the downstream steel pipe 131, a bottom member 130 made of a lower horizontal bracing 132,

The inclined members 120 extended by the hinge point portion A constituted by the inverted V-shaped inclined steel pipe 121, the gusset connecting plate 122, the arc-shaped connecting plate 123 and the back reinforcement plate 124 It can be seen that it is horizontally disposed and transported, and it can be understood that the structure is configured to be able to be loaded in the vehicle as much as possible before assembling in the field.

Next, as shown in FIG. 3B, the slope member 120, the slope member 120, and the slope member 130, which are brought into the site, are slid on the upper surface of each of the downstream steel pipes 131 of the slope 130, Shaped connection plates 123 formed at the lower portion of the housing.

This allows the rear reinforcing plate 124 to be inserted into the slot connecting groove 133 formed on the upper surface of the steel pipe 131 after the arc connecting plates 123 and the arc connecting plate 123 is inserted into the slot connecting groove 133 As shown in Fig.

Next, as shown in FIG. 3C, the upper current 110 is installed on the inclined member 120 by using the arc-shaped connecting plate 123 formed on the upper surface of the inclined member 120 integrated with the lower current.

This also allows the rear reinforcing plate 124 to be inserted into the slot connecting grooves 113 formed on the upper surface of the arc shaped connecting plates 123 and the arc connecting grooves 113, Welding is performed simply by welding around it.

Thus, the steel pipe truss structure 100 is manufactured to have a predetermined length of extension, and if necessary, a plurality of the assembled steel pipe truss structures 100 may be connected to each other to secure a required extension length.

As described above, the façade support device 140 can be installed on both ends of the steel pipe structure of the steel pipe truss structure 100 to be supported on a bridge support installed on the bridge substructure.

[Construction method of steel tube truss structure manufactured by using hinge point of steel tube truss structure]

FIGS. 4A and 4B illustrate a method of constructing a steel pipe truss structure using a hinge knocking portion of a steel pipe truss structure.

As shown in FIG. 4A, the phase current 110, the slope material 120, and the bottom current 130 are fabricated in a factory, The steel pipe truss structure 100 manufactured using the point A is assembled and installed.

That is, the upper current 110 and the two downstream steel pipes 111 made of a plane member are connected to each other by using the upper horizontal bracing 112 in a state where the two presenting steel pipes 111 are spaced apart from each other, The lower horizontal bracing 132 and the lower horizontal bracing 132. The lower horizontal bracing 132 and the lower horizontal bracing 132 are spaced apart from each other, And a slant member 120 including a hinge point gap portion A connected between the slant members 120, respectively,

The bottom reinforcement plate 124 of the hinge point portion A is brought into contact with the slot connecting groove 133 formed on the upper surface of the bottom plate 130, The arc-shaped connecting plate 123 is inserted into a slot connecting groove formed in the longitudinal direction of the steel pipe 131 and fixed to the surface of the outer pipe 111 and the outer pipe 131,

A rear reinforcing plate 124 of a hinge point portion A is formed in a slot connecting groove formed in the longitudinal direction of the upper surface 110 of the upper plate 110 on the upper surface of the inclined member 120 fixed to the lower plate 130, And the arc-shaped connecting plate 123 is fixed to the surface from the outside of the manifold steel pipe 111. The upper end 110, the slope 120 and the lower end of the hinge- The steel pipe truss structure 100 including the current steel pipe 130 is manufactured.

4b, the bridge support 210 is installed on the bridge substructure 200 previously installed and the steel pipe truss structure 100 is lifted so that both ends of the bridge support 210 are supported on the bridge support device 140, As shown in Fig.

Thus, a slab or the like necessary for the upper surface of the steel pipe truss structure 100 is installed, and the final bridge can be constructed.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: girders for bridges
110: Present Present 111: Sang Hyun Steel Pipe
112: upper horizontal bracing 113: slot connection groove
120: slant material 121: oblique steel pipe
122: Gusset connecting plate 123: arc connecting plate
124: rear reinforcing plate 125: one-side slot groove
130: Lower current 131: Steel bridge
132: lower horizontal bracing 133: slot connection groove
135: bottom slot groove 140: fulcrum support device
141: both connecting plates 142: bottom plate
143: internal reinforcing plate 200: bridge substructure
210: Bridge support
A:

Claims (8)

delete delete A phase current 110 made of a flat member connected to each other by using an upper horizontal bracing 112 in a state where two presenting steel tubes 111 are spaced apart from each other; A lower case 130 made of a flat member and connected to each other by using a lower horizontal bracing 132 in a state where the two downcombed steel pipes 131 are spaced apart from each other; And an inclined member 120 connected between the upper and lower side of the presenting steel pipe 111 and the lower steel pipe 131 by a hinge pointing point A respectively,
The hinge point portion (A)
A gusset connecting plate 122 inserted in the slot groove 125 formed in the slant steel pipe 121 and extending in the longitudinal direction so as to cover the upper surface of the presenting steel pipe 111 and the lower steel pipe 131, An arc-shaped connecting plate 123 which is integrally formed on the upper surface of the lower surface of the lower plate 120 so as to be inclined; And a rear reinforcing plate (124) in the form of a vertical plate formed in a direction extending from the arc connecting plate (123) on the back surface of the arc connecting plate (123)
The rear reinforcing plate 124 is inserted into the slot connecting grooves formed in the longitudinal direction of the presenting steel pipe 111 and the downstream steel pipe 131 and the arc connecting plate 123 is inserted into the presenting steel pipe 111 and the downstream steel pipe 131 so that a bending moment is not generated at a connecting portion between the upper current 110 and the lower current 130 connected to the inclined member 120,
The slot connection grooves 113 and 133 are formed so as to correspond to ends of the rear reinforcing plate 124 to which the rear reinforcing plate 124 is inserted, Steel pipe truss structure fabricated using the hinge point of a truss structure. The method of claim 3,
The upper horizontal bracing 112 includes a pair of spaced apart vertical connection plates 112a formed on the respective upright steel pipes 111 and a protruding vertical connection plate 112b fixed between the two vertical connection plates 112a; And a protruding vertical connecting plate 112b between the inner side surface of the manifold steel pipe 111 and the connecting member 112c to adjust the length of the connecting member 112c so that the upper horizontal bracing (A) of a steel pipe truss structure capable of manufacturing a steel pipe truss structure (112). The method of claim 3,
The lower horizontal bracing 132 includes a protruding vertical connection plate 132b fixed between the vertical connection plates 132a and the vertical connection plates 132a formed on the respective downstream pipes 131, And a protruding vertical connecting plate 132b is disposed between the inner surface of the lower flat steel pipe 131 and the lower flat bracing 132b by adjusting the length of the flat steel connecting member 132c, (A) of a steel pipe truss structure capable of manufacturing the steel pipe truss structure (132). The method of claim 3,
The bottomed steel pipe 131 is further formed with a bottom slot groove 135 so that the rear reinforcing plate 124 is coupled with the focal point supporting device 140 in the downstream steel pipe 131, The bridge support being formed on a portion of the bridge,
The fulcrum support device 140 includes a pair of connection plates 141 installed to penetrate the bottom slot groove 135 formed in the bottom of the downstream steel pipe. A support bottom plate 142 for supporting both connection plates 141 extending to the lower portion of the downstream steel pipe 131; And an inner reinforcing plate (143). The steel tube truss structure is manufactured using the hinge point portion (A) of the steel tube truss structure. (a) an upper current 110 made of a flat member and two downstream steel pipes 131 connected to each other by using an upper horizontal bracing 112 in a state where the two presenting steel pipes 111 are spaced apart from each other; The upper horizontal pipe 130 and the lower vertical pipe 130 are connected to each other using a lower horizontal bracing 132 in a state where they are spaced apart from each other. (120), each of which is connected by a hinge pointed portion (A) between the lower portion and the lower portion;
(b) The bottom reinforcement plate 124 of the hinge point gap portion A is brought into the slot connecting groove 133 formed on the upper surface of the lower current 130 by bringing the slope material into the site at the current, Is inserted into a slot connection groove formed in the longitudinal direction of the downstream steel pipe 131 and the arc-shaped connection plate 123 is fixed to the surface of the external pipe 111 and the downstream pipe 131 to form a groove;
(c) a rear reinforcing plate (not shown) of the hinge point portion A is formed on the upper surface of the slant member 120 fixed to the lower current 130, 124), fixing the arc-shaped connecting plate (123) to the surface of the outer pipe (111) and fixing the arc-shaped connecting plate (123) to the surface; And
(d) The steel pipe truss structure 100 including the upper part 110, the slope part 120 and the lower part 130 integrated with each other by the hinge point part A is connected to the bridge substructure 200 ), ≪ / RTI >
The hinge point portion (A)
A gusset connecting plate 122 inserted in the slot groove 125 formed in the slant steel pipe 121 and extending in the longitudinal direction so as to cover the upper surface of the presenting steel pipe 111 and the lower steel pipe 131, An arc-shaped connecting plate 123 which is integrally formed on the upper surface of the lower surface of the lower plate 120 so as to be inclined; And a rear reinforcing plate (124) in the form of a vertical plate formed in a direction extending from the arc connecting plate (123) on the back surface of the arc connecting plate (123)
The rear reinforcing plate 124 is inserted into the slot connecting grooves formed in the longitudinal direction of the presenting steel pipe 111 and the downstream steel pipe 131 and the arc connecting plate 123 is inserted into the presenting steel pipe 111 and the downstream steel pipe 131 so that a bending moment is not generated at a connecting portion between the upper current 110 and the lower current 130 connected to the inclined member 120,
The slot connection grooves 113 and 133 are formed so as to correspond to ends of the rear reinforcing plate 124 to which the rear reinforcing plate 124 is inserted, A STEEL STRUCTURE OF STEEL STRUCTURES USED BY HINGES. 8. The method of claim 7,
The downstream steel pipe 131 constituting the lower end of the step (d)
The bottom reinforcement plate 124 is coupled with the fringe support device 140 in the downstream steel pipe 131 to form the bottom bridge structure 135 formed in the bridge substructure 200 of the steel pipe truss structure 100 To be supported by the bridge support 210,
The fulcrum support device 140 includes a pair of connection plates 141 installed to penetrate the bottom slot groove 135 formed in the bottom of the downstream steel pipe. A support bottom plate 142 for supporting both connection plates 141 extending to the lower portion of the downstream steel pipe 131; And an inner reinforcing plate (143). A method of constructing a steel pipe truss structure using the hinge knocking portion of a steel pipe truss structure.
KR1020150189677A 2015-12-30 2015-12-30 Hinge joint of steel pipe truss structure, steel pipe truss structure therewith and the steel pipe truss structure construction method therefor KR101669441B1 (en)

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CN115198671A (en) * 2022-07-27 2022-10-18 清华大学 Structure for preventing and treating horse-refused debris flow and preparation method thereof
KR20230025516A (en) * 2021-08-14 2023-02-21 (주)지아이에프 Composite lattice girder bridge assembled in warren truss shapes
KR20230093698A (en) * 2021-12-20 2023-06-27 목포대학교산학협력단 Footpath enlarging apparatus for bridge and Construction method using thereof
CN118023820A (en) * 2024-04-11 2024-05-14 河南新中和混凝土工程有限公司 Building steel construction welding auxiliary positioning device

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KR101819081B1 (en) * 2017-04-10 2018-01-16 (주)리튼브릿지 Truss girder with double steel pipe upper structure and construction method therefor
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CN107956202B (en) * 2017-12-04 2024-05-31 江苏沪宁钢机股份有限公司 Safe and stable crescent bridge and mounting process thereof
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CN112942050A (en) * 2021-02-05 2021-06-11 中铁大桥勘测设计院集团有限公司 Combination beam without upper flat connection steel truss girder and construction method
KR20230025516A (en) * 2021-08-14 2023-02-21 (주)지아이에프 Composite lattice girder bridge assembled in warren truss shapes
KR102564471B1 (en) * 2021-08-14 2023-08-07 (주)지아이에프 Composite lattice girder bridge assembled in warren truss shapes
KR20230093698A (en) * 2021-12-20 2023-06-27 목포대학교산학협력단 Footpath enlarging apparatus for bridge and Construction method using thereof
KR102553176B1 (en) 2021-12-20 2023-07-10 목포대학교 산학협력단 Footpath enlarging apparatus for bridge and Construction method using thereof
CN115198671A (en) * 2022-07-27 2022-10-18 清华大学 Structure for preventing and treating horse-refused debris flow and preparation method thereof
CN118023820A (en) * 2024-04-11 2024-05-14 河南新中和混凝土工程有限公司 Building steel construction welding auxiliary positioning device

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