KR20150046517A - Multiplied Composite Truss Girder system for long-span application and manufacturing method thereof and constructing method using the same - Google Patents

Abstract

The present invention relates to a girder system using a long-span structure, which comprises a first synthetic member and a second synthetic member. The first synthetic member comprises: a plurality of first steel members comprising a top flange, a bottom flange, and a web which are separated at regular distance intervals, and disposed in parallel in a longitudinal direction of a girder; a plurality of first diagonal members fixing-installed to be inclined at regular distance intervals on the top flange of the first steel members; and a first concrete part in which a concrete is deposited so that the bottom flange and the web of the first steel members are buried by their constant heights in a longitudinal direction of the first steep members. The second synthetic member has the same structure as the first synthetic member and is configured in a shape that the first synthetic member is upside down to be coupled to an upper part of the first synthetic member. The second synthetic member comprises: a plurality of first steel members corresponding to the first steel members of the first synthetic members; a plurality of second diagonal members corresponding to the first diagonal members; and a second concrete part corresponding to the first concrete part. The first synthetic member and the second synthetic member are coupled by touching an outer end of the first diagonal member and an outer end of the second diagonal member. When viewed from the sides of the whole shapes of the coupled first and second diagonal materials, a pattern that an X shape is consistently arranged is configured.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-composite truss girder system for long spans,

The present invention relates to a multiple composite truss girder system used in a long span structure, a manufacturing method thereof, and a construction method using the same, and more particularly, to a structure in which two or more composite trusses are arranged side by side and combined by a single girder system. And a method of manufacturing the same and a construction method using the same.

Modern architecture often requires long spans to increase space efficiency. In other words, in a general building, a large space structure is formed depending on the use of a room, and when the upper and lower column modules of a building are different, a large-diameter transition structure is required to transmit the upper load to the lower part. In the case of industrial facilities using high-tech buildings, the use of large-scale equipment is increasing to improve productivity, and a structural system using a long span is required.

In order to realize such a long span structure, a girder having a composite section in which a single H-shaped steel and concrete are combined is used. However, for long spans over 20 m, conventional composite girders are essentially large sections used for the required structural performance. As a result, there has been a problem in that not only the construction cost but also the air amount increases due to the increase in the quantity of water. In addition, the steel truss system commonly used in stadium space structures was very advantageous for the long span, but there was a limit to the ineffective cross section when the load was increased at the top. Therefore, it is required to develop a girder system which can realize a long span and can support a large load at the top.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the related art. The purpose is as follows.

First, the present invention relates to a multi-composite truss girder system for long spans, which has advantages of high rigidity and high damping performance of a RC structure by combining the steel members and concrete, and the efficiency of construction of a steel frame, to provide.

Second, the present invention can be applied to a multi-composite truss girder system for long span which can be welded in a factory and then bolted to the site to form a single girder system, And a construction method using the same.

Third, the present invention provides a multiple composite truss girder system in which a connecting member for connecting a plurality of steel members serves as a shear connector, a method of manufacturing the same, and a construction method using the same.

Fourth, according to the present invention, it is possible to provide a multi-composite truss for a long span which is effective for preventing buckling by structuring a workpiece connecting units vertically symmetrically unitized to each other so as to efficiently correspond to seismic loads, A girder system, a method of manufacturing the same, and a construction method using the same.

Fifth, the present invention can be applied to a long span which can realize a high rigidity through the synthesis effect of installing a permanent mold on the upper part of the girder system and pouring concrete when it is used as a transition structure (transfer beam) A multiple composite truss girder system, a method of making the same, and a construction method using the same are provided.

According to an aspect of the present invention, there is provided a girder system for use in a structure of an elongated span, the girder system including a plurality of girders each having an upper flange, a lower flange and a web, A plurality of first work pieces fixedly installed at predetermined intervals on an upper flange of the plurality of first-shaped steel members; And a first concrete member having a plurality of first flange members and a plurality of first flange members in a longitudinal direction of the plurality of first flange members; And a second shape member having the same structure as the first composite member, the second shape member corresponding to the first shape member of the first composite member, and the second type material corresponding to the first shape material; And a second composite member including a first concrete part and a second concrete part corresponding to the first concrete part, wherein the first composite part is inverted up and down to be coupled to an upper part of the first composite part, Wherein the first composite member and the second composite member are combined by abutting the outer end of the first workpiece and the outer end of the second workpiece, and the overall shape of the combined first and second workpieces is continuous And a plurality of truss girder systems for long spans are provided.

According to the present invention, the following effects are expected.

First, the present invention has both the advantages of the composite beams and the steel trusses, and enables the optimum cross-sectional fabrication owing to the composite effect of the steel member and the concrete having the advantages of the high rigidity and high damping performance of the RC tank and the advantage of the construction efficiency of the steel frame It can save the cost of construction by reducing the amount of steel frame.

Secondly, the present invention is based on the fact that a member made up of upper and lower parts symmetrically unitized in a factory is tightened with bolts in the field to form a single girder system, so that the fabrication and installation processes are simplified, Construction can be minimized by welding on site, so that construction management is easy and quality is improved.

Thirdly, in the present invention, the connecting member connecting the plurality of steel members serves as a shear connector, so that the plurality of steel members can be integrated.

Fourth, the present invention maximizes the moment of inertia of the structure to maximize the effect of reducing the amount of water because it is very effective for deflection and vibration and can be reduced in weight, and it is possible to maximize the effect of reducing the amount of water, So that the structural stability such as the buckling prevention of the member is improved.

Fifth, since the load applied to the upper part of the girder system is supported by the girder system, it is not necessary to install a support on the lower part of the girder system, so that the construction of the lower layer is simultaneously performed, thereby shortening the construction period.

1 is a perspective view of a multiple composite truss girder system for a long span according to the present invention.
FIG. 2 shows a manufacturing process of a multiple composite truss girder system for a long span according to the present invention.
3 (a) and 3 (b) show another embodiment of a manufacturing process of a multiple composite truss girder system for long spans according to the present invention.
4 (a) and 4 (b) illustrate various embodiments of a structure formed by a construction method using a multi-composite truss girder system for a long span according to the present invention.
5 (a) and 5 (b) show another embodiment of a structure formed by a construction method using a multi-composite truss girder system for a long span according to the present invention.
6 (a) and 6 (b) illustrate an embodiment in which a multiple composite truss girder system for long spans according to the present invention is combined with an outer column.
7 (a) and 7 (b) show an embodiment in which a multi-composite truss girder system for long spans according to the present invention is combined with an inner column.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

One. Long span  Multiple composite truss girder system

1 is a perspective view of a multiple composite truss girder system for a long span according to the present invention. The present invention relates to a girder system for use in a long span structure, comprising: a plurality of first-shaped steel members (120) each consisting of an upper flange, a lower flange and a web and spaced apart from each other by a predetermined distance; And a plurality of first work pieces 140 fixedly installed at predetermined intervals on the upper flanges of the plurality of first-shaped steel members 120; And a first concrete part 160 in which concrete is placed so as to fill a predetermined height of a lower flange and a web of a plurality of first steel members 120 in the longitudinal direction of the plurality of first steel members 120 (100); And the first composite member 100 have the same structure as that of the first composite member 100. The first composite member 100 includes a second shape steel member 220 corresponding to the first shape steel member 120 of the first composite member 100, A corresponding second workpiece 240; And a second concrete part 260 corresponding to the first concrete part 160. The first composite part 100 is formed by inverting the top and bottom of the first composite part 100, The first composite member 100 and the second composite member 200 are connected to the outer end of the first workpiece 140 and the second workpiece 240, And the outer ends of the first and second strands are combined by abutting against each other, and when the overall shape of the combined first and second materials (140, 240) is viewed from the side, ≪ / RTI >

The present invention relates to a girder system in which a first composite member (100) and a second composite member (200) are combined vertically, wherein the first and second composite members (100, 200) The first and second workpieces 140 and 240, and the first and second concrete sections 160 and 260.

The first and second steel members 120 and 220 refer to a steel frame member composed of an upper flange, a lower flange, and a web and used for structural purposes. The pair of the first and second steel members 120 and 220 are spaced a predetermined distance in the longitudinal direction in which the girders are installed. The first and second steel members 120 and 220 may be formed of H-shaped steel as shown in FIG. 1, and may be configured in various forms as long as the upper and lower flanges and the web are configured as described above. At this time, the connecting member 130 may be further formed to cross the width direction of the upper flanges of the first and second steel members 120 and 220 and weld the both ends to the upper portions of the upper flanges. The connecting member 130 serves to connect a plurality of first and second steel members 120 and 220 (shear connectors), and may be formed of a reinforcing bar or an iron plate.

The first and second workpieces 140 and 240 may be formed as a pipe or a rod having a straight line shape, which is an inclined member coupled to the upper flange of the first and second steel members 120 and 220 by welding or the like. The first and second workpieces 140 and 240 may each be formed to be a half of a distance between the first and second steel members 120 and 220. This is because the first composite member 100 and the second composite member 200 have the same structure and the first and second composite members 100 and 200 are manufactured in the same shape, This is because it can reduce the construction error. The first and second materials 140 and 240 may be any one selected from an H-shaped steel, a hollow structural section (HSS), and a pipe. In this case, the first and second materials 140 and 240 are hollow, It is desirable to have an effect of preventing buckling by filling the concrete. As shown in FIG. 1, the first and second workpieces 140 and 240 include a plate-like coupling plate 152 having a plurality of bolt coupling grooves 152 formed at ends of the first and second steel members 120 and 220 that are not in contact with the upper flange, (150) may be further combined. In this case, the first and second composite members 100 and 200 are inserted into the bolt insertion grooves 152 formed in correspondence with each other so as to face the coupling plate 150 which is further coupled to the first and second materials 140 and 240 By fastening the bolt (B), it can be more easily and firmly coupled. In addition, it is preferable that the first and second work materials 140 and 240 are formed so that the combined shape of the first and second work materials 140 and 240 has an overall waveform so as to efficiently comprehend seismic loads and the like.

The first and second concrete parts 160 and 260 are formed by embedding a part of the lower flange of the first and second steel members 120 and 220 and the web along the longitudinal direction of the first and second steel members 120 and 220, Concrete is poured. The first and second concrete parts 160 and 260 make one end of the first and second composite members 100 and 200 a steel-concrete composite structure.

In other words, in the girder system of the present invention in which the first composite member 100 and the second composite member 200 are combined, the first-shaped steel member 120 serves as a truss- The combined first and second stories 140 and 240 serve as a truss material, thereby becoming the overall truss girder system.

2. For long span  Multiple composite truss Girder system  How to make

3 (a) and 3 (b) are views for explaining a manufacturing process of a multiple composite truss girder system for a long span according to the present invention, Fig.

The manufacturing process of the multiple composite truss girder system for long span according to the present invention is characterized in that a plurality of first shape steel members 120 are arranged side by side with a predetermined distance therebetween and the width direction of the upper flanges of the first shape steel members 120 is A first step of installing a connecting member (130) across which both end portions are welded and fixed to upper portions of the respective upper flanges; A second step of vertically inverting a plurality of first shape steel members 120 coupled with the coupling member 130 in a first step and then installing spacers S and molds F; A third step of placing concrete in the formwork F installed in the second step up to a predetermined height; A fourth step of removing the mold F after the concrete poured in the third step is cured; A fifth step of completing the first composite member 100 by installing a plurality of first workpieces 140 at regular intervals on the upper flanges of the plurality of first shaped steel members 120 from which the form F is removed in the fourth step, ; And the first to fifth steps are repeated to fabricate the second composite member 200 composed of the plurality of second shape steel members 220, the second workpiece 240, and the second concrete part 260, 2 upper and lower sides of the composite member 200 are reversed so that the outer ends of the first composite member 100 and the first and second workpieces 140 and 240 are brought into contact with each other so that the first composite member 100 and the second composite member 200) according to an embodiment of the present invention. 2, the first and second composite members 100 and 200 may be fabricated from a pair of first and second steel members 120 and 220, as shown in FIGS. 3 (a) and 3 (b) And may be made of three or more first and second steel members 120 and 220 as shown in FIG. That is, the present invention can manufacture the first and second composite members 100 and 200 by selectively determining the number of the first and second steel members 120 and 220 according to the site conditions.

2, when the coupling plate 150 is coupled to the ends of the first and second materials 140 and 240, the fifth and sixth steps may be changed in the manufacturing process described above. That is, the first to fourth steps are the same as those in the first to fourth steps. In the fourth step, a plurality of first flanges having a plurality of first shaped steel members 120, A first composite member 100 having a plurality of bolt coupling grooves 152 and a plate-like coupling plate 150 coupled to the outer ends of the first workpiece 140, A fifth step of completing the fifth step; The second composite member 220, the second workpiece 240, the second concrete portion 260, and the coupling plate 150 are repeatedly performed by repeating the first to fifth steps, 200 are inserted into the bolt coupling grooves 152 of the plurality of coupling plates 150 coupled to the outer ends of the first and second workpieces 140 and 240 after the upper and lower sides of the second composite member 200 are reversed, B) to couple the first and second composite members 100 and 200 to each other. That is, the embodiment of the present invention shown in FIG. 2 may be combined with the outer ends of the first and second materials 140 and 240 to more easily and firmly couple the first and second composite members 100 and 200 to each other. The plate 150 is further coupled.

3. For long span  Multiple composite truss Girder system  Construction method using

Figs. 4 (a) and 4 (b) show an embodiment of a structure formed by a construction method using a multi-composite truss girder system for a long span according to the present invention, Another embodiment of the structure formed by the construction method using the multi-composite truss girder system for long span is shown.

As shown in FIG. 4 (a), in the construction method using the multi-composite truss girder system for long span according to the present invention, the first composite member 100 and the second composite member 200 are manufactured, A step a. B) arranging the first and second composite members (100, 200) combined in the step a) at a position where the girder is to be installed; And placing a deck plate (300) on the second composite member (200) in step b and casting the spotted concrete (400). 5 (a), the first and second composite members 100 and 200 are manufactured using at least three first and second steel members 120 and 220 according to the need for structural performance, You can import and combine them.

4 (b), in step c), a mold F having a predetermined height is additionally provided on the second composite member 200 and the deck plate 300 is mounted on the mold F, And then placing the cast concrete 400 in place. The embodiment shown in FIG. 4 (b) is mainly used for a transition structure requiring high rigidity. The mold F installed on the second composite member 200 uses a permanent mold F made of an iron plate or the like (400), which has a high strength and a high load. In addition, as shown in FIG. 5 (b), the first and second composite members 100 and 200 manufactured using three or more first and second steel members 120 and 220 may be used.

Incidentally, in any of the above-described construction methods using the multiple synthetic truss girder system for long spans, the load of the cast concrete placed on the deck plate 300 is supported by the truss girder system of the present invention It is not necessary to provide a support such as a trowel underneath it, which makes it possible to construct the lower layer simultaneously with the construction of the upper layer and shorten the construction period.

6 (a) and 6 (b) show an embodiment in which a multiple composite truss girder system for long spans according to the invention is combined with an external column C, and Figs. 7 (a) In which the multiple composite truss girder system for long span is combined with the inner column C, is shown.

The girder system of the present invention can be combined with the inner and outer columns C by a method generally used for steel frame construction, as shown in Figs. 6 (a) and (b) have. That is, the girder system of the present invention can be coupled to the inner and outer columns C using a joining member 500 such as a steel bracket or a reinforcing material. 6 (a) and 7 (a) show the case where the column C is sandwiched, and FIGS. 6 (b) and 7 (b) show the case of simultaneous placement of the column C and the slab . However, when the girder system of the present invention is combined with the inner column C as shown in Fig. 7 (a), the method of Patent No. 10-0374537 can be used. More specifically, it is possible to combine the inner column (C) with the girder system of the present invention by using a bar reinforcement and a shear reinforcement without piercing the girder system. By using this method, it is possible to obtain an excellent effect of the stiffness of the shear and the acupressure.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

It is therefore intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

F: Form
B: Bolt
S: Spacer
C: Column
SC: Hypothesis steel column
100: first composite member
120: first section steel member
130: connector
140: First workpiece
150: engaging plate
152: Bolt connecting groove
160: first concrete section
200: second composite member
220: second section steel member
240: Secondary material
260: second concrete section
300: Deck plate
400: Field cast concrete
500: joining member

Claims (11)

In girder systems used for long span structures,
A plurality of first-shaped steel members 120, each of which is composed of an upper flange, a lower flange, and a web, and which are disposed in parallel with each other in a longitudinal direction of the girder while being spaced apart from each other by a predetermined distance; A plurality of first workpieces 140 fixedly installed at predetermined intervals on the first workpieces 140; A first concrete part 160 in which concrete is placed so as to fill a predetermined height of the lower flange and the web of the plurality of first shaped steel members 120 in the longitudinal direction of the plurality of first shaped steel members 120; (100); And
A second shape steel member 220 having the same structure as that of the first composite member 100 and corresponding to the first shape steel member 120 of the first composite member 100, A second workpiece 240 corresponding to the second workpiece 240; And a second concrete portion 260 corresponding to the first concrete portion 160. The first composite member 100 may be inverted up and down to form the first composite member 100, A second composite member 200 coupled at an upper portion of the first composite member 200;
, ≪ / RTI >
The first composite member 100 and the second composite member 200 are combined by abutting the outer end of the first workpiece 140 and the outer end of the second workpiece 240, Characterized in that the first and second stories (140, 240) are arranged in a continuous X-shaped arrangement in terms of the overall shape of the first and second stories (140, 240). The method of claim 1,
The first and second composite members (100, 200)
The plurality of first and second steel members 120 and 220 are formed of H-shaped steel, crossing the width direction of the upper flange of the first and second steel members 120 and 220, And a connecting member (130). ≪ / RTI > 3. The method of claim 2,
The composite composite truss girder system for long spans as claimed in any one of the preceding claims, wherein the coupling member (130) comprises one of a steel bar, an iron plate, and a rectangular steel pipe. 4. The method according to any one of claims 1 to 3,
The first and second composite members (100, 200)
The first and second workpieces 140 and 240 may be any one selected from the group consisting of an H-shaped section, a hollow structural section (HSS), and a pipe. The first and second workpieces 140 and 240 are fixed to the upper flanges of the first and second- Shaped coupling plate 150 having a plurality of bolt coupling grooves 152 is further coupled to the outer end of the coupling plate 150. The coupling plates 150 of the first and second composite members 100 and 200 are in contact with each other, And the first and second composite members (100, 200) are coupled by fastening the bolts (B) to the coupling grooves (152). 5. The method of claim 4,
Wherein the interior of the first and second workpieces (140, 240) is hollow and the hollow is filled with concrete. A method for manufacturing a multi-composite truss girder system for a long span according to any one of claims 1 to 3,
A plurality of first shape steel members 120 are arranged side by side with a predetermined spacing therebetween and a plurality of first shape steel members 120 crossing the width direction of the upper flange of the plurality of first shape steel members 120, 130);
A second step of vertically inverting the plurality of first shape steel members 120 coupled with the coupling member 130 and installing spacers S and molds F in the first step;
A third step of pouring the concrete up to a predetermined height in the mold F installed in the second step;
A fourth step of removing the mold (F) after the concrete poured in the third step is cured;
In the fourth step, a plurality of first workpieces 140 are installed at predetermined intervals on the upper flanges of the plurality of first-shaped steel members 120 from which the molds F are removed, Step 5; And
The first to fifth steps are repeated to fabricate the second composite member 200 composed of the plurality of second shape steel members 220, the second workpiece 240, and the second concrete part 260, 2 upper and lower sides of the composite member 200 are reversed so that the outer ends of the first composite member 100 and the first and second workpieces 140 and 240 are brought into contact with each other, (200);
Wherein the first and second truss girder systems are constructed to include a plurality of truss girders. A method for manufacturing a multiple composite truss girder system for long spans according to claim 4,
A plurality of first shape steel members 120 are arranged side by side with a predetermined spacing therebetween and a plurality of first shape steel members 120 crossing the width direction of the upper flange of the plurality of first shape steel members 120, 130); < / RTI >
A second step of vertically inverting the plurality of first shape steel members 120 coupled with the coupling member 130 and installing the molds F and the spacers S in the first step;
A third step of pouring the concrete up to a predetermined height in the mold F installed in the second step;
A fourth step of removing the mold (F) after the concrete poured in the third step is cured;
A plurality of first workpieces 140 are installed at regular intervals on the upper flanges of the plurality of first shaped steel members 120 from which the form F is removed in the fourth step, A fifth step of completing a first composite member 100 to which a plate-like coupling plate 150 having a plurality of bolt coupling grooves 152 is coupled; And
The first to fifth steps are repeatedly performed to form a second composite member 200 composed of a plurality of second shape steel members 220, a second workpiece 240, a second concrete portion 260, and a coupling plate 150 The bolts are inserted into the bolt coupling grooves 152 of the plurality of coupling plates 150 coupled to the outer ends of the first and second materials 140 and 240 after the upper and lower parts of the second composite member 200 are reversed, A sixth step in which the first composite member 100 and the second composite member 200 are engaged by fastening the first composite member B;
Wherein the first and second truss girder systems are constructed to include a plurality of truss girders. A construction method using a multiple composite truss girder system for long spans according to any one of claims 1 to 3,
A first step of fabricating the first composite member 100 and the second composite member 200 and bringing them into the site for coupling;
B) arranging the first and second composite members (100,200) combined at the step a) at a position where a girder is to be installed; And
A step (c) of installing a deck plate (300) on the second composite member (200) of the step (b) and casting the spotted concrete (400);
And a plurality of truss girder systems for the long span. A method of constructing a multi-composite truss girder system for long spans according to claim 4,
A first step of fabricating the first composite member 100 and the second composite member 200 and bringing them into the site for coupling;
B) arranging the first and second composite members (100,200) combined at the step a) at a position where a girder is to be installed; And
A step (c) of installing a deck plate (300) on the second composite member (200) of the step (b) and casting the spotted concrete (400);
And a plurality of truss girder systems for the long span. 9. The method of claim 8,
The step (c)
The method further includes the step of providing a mold F having a predetermined height on the second composite member 200 and placing the deck plate 300 on the mold F and placing the cast concrete 400 on the mold And a plurality of composite truss girder systems for long spans. The method of claim 9,
The step (c)
The method further includes the step of providing a mold F having a predetermined height on the second composite member 200 and placing the deck plate 300 on the mold F and placing the cast concrete 400 on the mold And a plurality of composite truss girder systems for long spans.

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