KR20160097888A - End Continuing Structure for Truss Decks - Google Patents

Abstract

The present invention relates to an end joining structure for truss decks which connects truss decks before slab concrete is cured to fix both ends to secure continuity of truss decks arranged on a left and a right of a steel beam. According to the present invention, the end joining structure for truss decks comprises: at least three beams arranged in parallel with each other; a pair of truss decks wherein a plurality of rows of truss girders each comprising an upper chord member, a lower chord member, and a diagonal member connecting the upper and the lower chord member are fixed on an upper surface of a plate, and longitudinal ends thereof are mounted on both sides of the beams; and a truss deck connection part to connect the ends of the truss decks to each other to form continuous ends. The truss deck connection part comprises: a fixing member on which the ends of the upper and the lower chord member of the truss deck are fixed and mounted; and a connection member to connect the fixing member and a fixing member mounted on an end of the truss deck on the other side to each other to transfer a tensile force of the truss deck.

Description

{Continuing Structure for Truss Decks}

The present invention relates to a truss deck continuous joint structure capable of ensuring the continuity of a truss deck disposed on the left and right of a steel beam by making the truss deck continuous and fixed at both ends before the slab concrete is cured.

Conventionally, a truss deck for slabs produced in the past has a plurality of columns of truss girders composed of upper and lower currents and workpieces on the upper surface of a steel plate with a certain thickness, thereby serving as a slab reinforcement and a construction material during construction.

Although the conventional truss deck has a unit length of 3 to 4.5 m and a slab thickness of 150 mm, the slab thickness may sometimes be increased to 200 to 300 mm in order to extend the length to 6 to 7 m. However, in the latter case, there is a disadvantage that the economical efficiency is lowered due to increase of stratification, increase of weight of concrete, and increase of hypothetical support to support the increased weight before concrete curing.

Therefore, there is a method of constructing the steel plate so that the steel plate is positioned on the side of the web of the steel frame in order to suppress the increase of the slab thickness while increasing the thickness of the slab, a method of making the steel wire truss self- And a method of increasing the thickness of the steel wire of the wire.

Meanwhile, a method of increasing the length of the truss deck, reducing the amount of slab concrete used to reduce the weight of the self-weight and the stiff strut, and filling a part of the slab with a styrofoam or forming a hollow is also attempted.

However, all of the above methods rely on general reinforcement to ensure continuity between adjacent truss decks.

That is, the upper reinforcement and the lower steel wires added to the adjacent truss girder to be continued can be used only after the concrete curing is finished. Also, until the concrete curing is completed, the truss girder is subjected to the construction load only as a separate simple beam It must be sustained. As a result, the truss deck sufficient to support the permanent load may show a large deflection with respect to the construction load, which requires a troublesome and expensive tentative support.

In order to solve the above-mentioned problem, the truss deck is constructed such that the end portions of the adjacent steel wire trusses are continuously connected to reduce the amount of deflection of the steel wire truss that occurs before the concrete placed in the truss deck cures, A structure for ensuring continuity of the end of the steel wire truss is developed (Patent No. 10-1393468).

However, the above-mentioned registration technique has a problem that the adjacent upper steel wire and the lower steel wire must be connected separately, so that the construction is cumbersome and the U-shaped steel wire is connected to the end of the upper steel wire.

In order to solve the above-mentioned problems, the present invention is characterized in that before the slab concrete is cured, the truss girder is continuously connected and fixed at both ends, thereby controlling the amount of deflection of the truss deck during construction, And to provide a truss deck continuous joint structure that can minimize the thickness while minimizing the temporary stiffness.

The present invention provides a truss deck continuous joint structure that can improve economy and workability by simpler construction and construction when connecting adjacent truss decks.

According to a preferred embodiment of the present invention, at least three beams are arranged parallel to each other; A pair of truss decks having a plurality of truss girder columns fixed to an upper surface of the plate, the truss girders each having a longitudinal end coupled to the beam on both sides, respectively; And a truss deck connector for interconnecting the pair of truss deck ends to form a continuous end; Wherein the truss deck connection port interconnects a fixing member to which the upper and lower ends of the truss deck are fixedly coupled and a fixing member coupled to the truss deck end of the other side to transmit a tensile force of the truss deck And a connecting member for connecting the truss deck end continuous structure.

According to another preferred embodiment of the present invention, the connecting member is provided at the same height as the upper end of the truss deck.

According to another preferred embodiment of the present invention, the fixing member includes an upper fixing part, an upper fixing part, a lower fixing part, and a lower fixing part, And the upper fixing portions of the fixing members adjacent to each other in the width direction of the truss deck are interconnected by a horizontal connecting member, and the connecting member is formed by connecting a horizontal connecting member of one truss deck with a horizontal connecting member of the other truss deck And a truss deck end continuous joint structure is provided.

According to another aspect of the present invention, there is provided a truss deck end continuous joining structure, wherein the horizontal joining member is formed by bending a central portion of the horizontal joining member so as to protrude in the direction of the other truss deck,

According to another preferred embodiment of the present invention, there is provided a truss deck end continuous joint structure characterized in that a compression member is fixedly coupled to a rear surface of an upper fixed portion adjacent in a width direction.

According to another preferred embodiment of the present invention, there is provided a truss deck end continuous joint structure, wherein the upper fixing part and the horizontal connection member are integrally formed with each other.

According to another preferred embodiment of the present invention, the fixing member coupled to the outer end of the truss deck installed at the outermost span is interconnected with a beam top provided at the outermost portion and a connecting member. to provide.

According to another preferred embodiment of the present invention, the lower portion of the outermost beam is connected to one end of the adjacent beam by a wire, thereby providing a truss deck end continuous joint structure.

According to another preferred embodiment of the present invention, there is provided a light source device comprising: a pair of beams arranged parallel to each other; A truss deck having a plurality of truss girder columns fixed to the upper surface of the plate, the truss girders being composed of a material connecting the upper and lower currents, the upper and lower currents, and the longitudinal ends being coupled to the both sides of the beam; And a truss deck connector for interconnecting the truss deck end with the beam top to form a fixed end; Wherein the truss deck connector comprises a fixing member to which the upper and lower ends of the truss deck are fixedly coupled and a connecting member that interconnects the fixing member with the upper portion to transmit the tensile force of the truss deck Thereby providing a truss deck end continuous joint structure.

According to another preferred embodiment of the present invention, the plate of the truss deck is mounted on the beam surface, and the lower end of the fixing member is welded to the beam surface.

According to another preferred embodiment of the present invention, the plate of the truss deck comprises a plurality of bone units spaced apart from each other, the plurality of bone units being composed of a lower plate and a pair of side plates bent upward at an inclination from both ends of the lower plate, And the upper end of the plate is connected to the upper plate by a top plate, and the bottom plate is provided in the bone unit, And a blocking member fitted to the lower portion of the plate is provided.

According to another preferred embodiment of the present invention, there is provided a truss deck end continuous joint structure, characterized in that the pair of beams are interconnected by wires.

According to another preferred embodiment of the present invention, the plate of the truss deck is provided on the beam side, and between the fixing member and the beam side of the truss deck on at least one side of the truss deck at the beam side, And the formed wedge member is inserted into the truss deck end continuous joint structure.

According to another preferred embodiment of the present invention, the fixing member includes an upper fixing part, a lower fixing part, and a lower fixing part, Wherein the wedge member is inserted between the lower fixing portion and the side surface of the lower fixing portion and is in close contact with the wedge member, And the truss deck end continuous joint structure is characterized in that the truss deck end continuous joint structure is formed.

The present invention has the following effects.

First, continuity of the truss decks arranged on the right and left of the steel frame can be ensured by making the truss girders continuous and fixed at both ends before the slab concrete is cured. This makes it possible to control the amount of deflection of the truss deck during construction, and to minimize the increase in thickness of the slab during the construction of the long span truss deck, while eliminating the temporary stanchion.

Second, when connecting the adjacent truss deck, the upper and lower currents can be fixed at one time as a fixing member, the bolt can be used instead of the turnbuckle, and the connection member can be reduced by connecting the phase currents arranged in parallel to the connecting member. Therefore, when connecting adjacent truss decks, simpler construction and construction can reduce cost and improve workability.

Third, the horizontal connecting members of the adjacent truss decks are interconnected by the connecting members to transmit the tensile force. In particular, when the center portion of the horizontal connecting members protrudes outwardly and is connected to the connecting members, the horizontal connecting members are arranged diagonally at the top of the beams. It is possible to prevent the upper cracks of the beam from being generated.

Fourth, in the case of fixing the end of the truss deck by connecting the fixing member of the truss deck installed at the outermost span to the top of the beam, the maximum moment can be reduced to reduce the deflection and the stiffness.

1 is a perspective view of a truss deck continuous joint structure of the present invention, according to one embodiment.
Fig. 2 is a perspective view showing a coupling relationship between the truss deck and the fixing member in the embodiment of Fig. 1; Fig.
FIG. 3 is a perspective view showing a construction process of the embodiment of FIG. 1; FIG.
4 is a perspective view of a truss deck continuous joint structure according to another embodiment of the present invention;
Fig. 5 is a perspective view showing a coupling relationship between the truss deck and the fixing member in the embodiment of Fig. 4; Fig.
6 is a perspective view showing a construction process of the embodiment of FIG.
7 is a perspective view showing a truss deck continuous joint structure according to the present invention when an H-shaped steel is seen.
8 is a perspective view showing the truss deck continuous joint structure of the present invention when the deck deck plate is a plate of a truss deck;
Fig. 9 is a perspective view showing a truss deck continuous joint structure of the present invention having a blocking member; Fig.
10 is a perspective view showing a truss deck end continuous joint structure of the present invention when a plate of a truss deck is provided on a side of a beam;
11 is a perspective view showing a wedge member inserted between the beam side and the fixing member;
12 is a perspective view showing a coupling relation between a truss girder, a fixing member and a wedge member;
13 is a perspective view showing a coupling relationship between the fixing member and the wedge member;
14 and 15 are perspective views showing a coupling relationship between a truss deck installed in an outermost span and a beam.
Fig. 16 is a cross- And FIG.
17 is a conceptual diagram comparing moments according to the slab end fixed state.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

FIG. 1 is a perspective view of a truss deck continuous joint structure according to an embodiment of the present invention, FIG. 2 is a perspective view showing a coupling relationship between a truss deck and a fixing member in the embodiment of FIG. 1, FIG. 3 is a perspective view showing a construction process of the embodiment of FIG.

As can be seen from Figs. 1 to 3, the truss deck end continuous joint structure of the present invention comprises: a beam 1 having at least three beams arranged parallel to each other; A plurality of rows of truss girders 21 are fixed on the upper surface of the plate 22, which is composed of a phase current 211 and a lower phase 212 and a work 213 connecting the phase current 211 and the lower phase 212 , A pair of truss decks (2, 2 ') whose lengthwise ends are respectively coupled to both sides of the beam (1); And a truss deck connector (3) for interconnecting the ends of the pair of truss decks (2, 2 ') to form a continuous end; .

That is, according to the present invention, the pair of truss decks 2 and 2 'located on both sides of the beam 1 are mutually connected to fix the truss girder 21 at both ends thereof. Thus, before the slab concrete is cured, To control deflection.

The truss decks 2 and 2 'are engageable with the upper surface of the beam 1 or the side surface of the beam 1. 1 and 4 show an embodiment in which the truss decks 2 and 2 'are coupled to the upper surface of the beam 1. In the case where the truss decks 2 and 2' are coupled to the side surface of the beam 1 Will be described later with reference to FIGS. 10 and 11. FIG.

When the truss decks 2 and 2 'are coupled to the upper surface of the beam 1, the plates 22 of the truss decks 2 and 2' are mounted on the upper surface of the beam 1, Can be welded to the upper surface of the beam (1).

In this case, since the fixing member 31 is welded to the upper surface of the beam 1, the lower current 212, which is a compressed reinforcing bar, transmits a compressive force to the beam 1. [

In the embodiment of Figs. 1 and 4, a flat deck plate is mounted on the upper surface of the beam 1.

The truss deck connector 3 includes a fixing member 31 to which the ends of the upper and lower ends 211 and 212 of the truss deck 2 are fixedly connected and a fixing member 31 to which the truss deck 2 And a connecting member 32 interconnecting the fixing member 31 coupled to the ends of the truss decks 2 and 2 'to transmit the tensile force of the truss decks 2 and 2'.

The fixing member 31 simultaneously fixes the ends of the upper current 211 and the lower current 212 of the truss decks 2 and 2 '.

It is possible to consider a case where the fixing hole 31 is formed at a position corresponding to the phase current 211 and the bottom edge 212 as an example of the fixing member 31. In this case, the ends of the phase current 211 and the lower current 212 can be welded to the fixing member 31 by inserting the ends of the phase current 211 and the lower current 212 into the coupling holes of the fixing member 31.

That is, the fixing member 31 is disposed so that the end portions of the phase current 211 and the lower current 212 are inserted into the coupling holes, So that the truss girder 21 and the fixing member 31 are engaged.

The fixing member 31 can be formed into a casting. At this time, a welding groove filled with welding lint is formed around the coupling hole on the outer surface of the fixing member 31, and welding torches are filled in the welding groove to firmly fix the upper plate 211 and the lower plate 212 have.

The connecting member 32 interconnects the fixing members 31 of the adjacent truss decks 2, 2 '. As a result, the truss girder 21 forms a continuous end, so that a moment is generated, and the lower crest 212 becomes a compressive reinforcing bar and the upper crest 211 becomes a tensile reinforcing bar.

The connecting member 32 transmits the tensile force of the truss decks 2 and 2 'and the moment is greatly reduced by the formation of the continuous end of the truss girder 21, so that deflection of the member can also be reduced. Therefore, the supporting column supporting the lower portion of the truss deck 2, 2 'before concrete pouring can be omitted.

The connecting member 32 connects the upper ends 211 acting as tensile members at the ends of the truss decks 2 and 2 ' As shown in FIG.

The fixing member 31 includes an upper fixing portion 311 to which the end portion of the phase current 211 is coupled and fixed, a lower fixing portion 312 to which the end portion of the lower current 212 is fixedly coupled, And a vertical connecting member 313 connecting the fixing portion 311 and the lower fixing portion 312. The upper fixing portion 311 of the fixing member 31, which is adjacent in the width direction of the truss decks 2 and 2 ' 311 are interconnected by a horizontal connecting member 314 and the connecting member 32 interconnects the horizontal connecting member 314 of the one truss deck 2 with the horizontal connecting member 314 of the other truss deck 2 ' Lt; / RTI >

As shown in FIGS. 1 to 3, the horizontal connecting member 314 may be configured such that the central portion of the horizontal connecting member 314 is bent so as to protrude in the direction of the other truss deck 2, and the protruding central portion is connected to the connecting member 32.

Since the central portion of the protruding horizontal coupling member 314 is configured to abut the protruded central portion of the horizontal coupling member 314 of the opposite truss deck 2 ', the horizontal coupling member 314 is disposed diagonally above the beam 1 (1) It is possible to prevent the cracks on the upper side due to the momentum.

As can be seen in FIG. 3 (c), the central portion of the protruding horizontal coupling member 314 can be simply bolted to the protruding central portion of the horizontal coupling member 314 of the opposite truss deck 2 '.

For this purpose, a bolt coupling hole is preferably formed in the horizontal coupling member 314 in advance.

Further, a compression member 315 may be fixedly coupled to the rear surface of the upper fixing portion 311 adjacent in the width direction.

The horizontal connection member 314 transmits the tensile force by the truss action. The upper fixing unit 311 adjacent to the horizontal connection member 314 when the tension member acts on the horizontal connection member 314 can be contracted. Accordingly, the compression member 315 is coupled to the rear surface of the upper fixing part 311 to support the upper fixing part 311 adjacent in the width direction.

3, the present invention is characterized in that the ends of the respective truss decks 2 and 2 'are mounted on both sides of the upper side of the beam 1 (Figs. 3B to 3C) The construction can proceed in the order of placing the concrete in a state where the fixing members 31 of the adjacent truss decks 2 and 2 'are mutually connected and fixed in position (FIG. 3 (d)).

FIG. 4 is a perspective view of a truss deck continuous joint structure according to another embodiment of the present invention, FIG. 5 is a perspective view showing a coupling relationship between a truss deck and a fixing member in the embodiment of FIG. 4, FIG. 3 is a perspective view showing a construction process of the embodiment of FIG.

As described above, the fixing member 31 is composed of an upper fixing portion 311, a lower fixing portion 312 and a vertical coupling member 313, and is disposed adjacent to the truss decks 2 and 2 ' The upper fixing portions 311 of the fixing member 31 are connected to each other by a horizontal connecting member 314 and the connecting member 32 connects the horizontal connecting members 314 of the adjacent truss decks 2 and 2 ' Lt; / RTI >

1 to 3, the upper fixing portion 311 and the horizontal coupling member 314 may be formed of a single-piece steel member integrated with each other.

4 to 6, the upper fixing part 311 and the horizontal connecting part 314 are integrally formed on the upper part of the lower fixing part 312 and the vertical connection part 313, (314) to resist bending.

Accordingly, the end portions of the adjacent truss decks 2 and 2 'can be continuous by connecting the truss decks 2 and 2' of the truss decks with the connecting member 32.

Similarly, a bolt can be used as the connecting member 32, and it is preferable that a bolt coupling hole is previously formed in the U-shaped steel.

6, the ends of the truss decks 2 and 2 'are mounted on both sides of the upper side of the beam 1 (Figs. 6B to 6C) The construction can be carried out in the order of pouring the concrete in a state where the c-shaped beams of the adjacent truss decks 2 and 2 'are interconnected and fixed in position (Fig. 6 (d)).

7 is a perspective view showing a truss deck continuous joint structure of the present invention when an H-shaped steel is seen.

FIGS. 1 and 4 show an embodiment in which the TSC beam steel plate assembly beam is used as a beam member 1.

In addition to the steel plate assembly beam, an H-shaped steel may be used as shown in Fig. 7, or a beam member having another cross sectional shape may be used.

When the truss decks 2 and 2 'are coupled to both sides of the beam 1 as described above, the fixing members 31 of the two truss decks 2 and 2' And the like.

However, since the truss deck 2 is provided only on one side of the beam 1 at the span discontinuous end, the continuous truss can not be formed by connecting the adjacent truss decks 2 and 2 '. Therefore, a continuous fastener is to be formed in the outermost beam (1) of the span discontinuous end by providing a separate fastener on the upper surface of the beam (1) and connecting member (32) to the fastener to transmit tensile force.

14 and 15, the fixing member 31 coupled to the outer end of the truss decks 2 and 2 'installed at the outermost span is connected to the upper portion of the beam 1 installed at the outermost portion, (32).

By fixing the end of the truss deck 2 located at the outermost span, the maximum moment can be reduced to 20%, and thus the deflection of the member also decreases, so that the number of the hypothetical struts can also be reduced.

In the embodiment of Figs. 14 and 15, the fixture plate 11 is coupled to the upper surface of the beam 1 by the embodiment of the fixture, and the fixture plate 11 and the fixation member 31 are connected by the linking member 32.

The lower portion of the beam 1 disposed at the outermost portion may be connected to one end of the adjacent beam 1 by a wire 5.

As shown in FIGS. 14 and 15, the wire 5 can be fixedly coupled to the wire fixing hole 6 coupled to the lower portion of the beam 1.

Fig. 8 is a perspective view showing a truss deck end continuous joint structure of the present invention when the deck deck plate is a truss deck plate, and Fig. 9 is a perspective view showing a truss deck end continuous joint structure of the present invention having a stopper member.

8 and 9, the present invention is applicable to a golf deck plate as well as a flat deck plate.

That is, the plate 22 of the truss decks 2 and 2 'includes a plurality of bone units 221 including a bottom plate 221a and a pair of side plates 221b bent upward at both ends of the bottom plate 221a. And adjacent bone units 221 may be formed of a golf deck plate in which upper ends of the side plates 221b are connected to each other by an upper plate 222. [

At this time, the lower end 212 is provided in the bone unit 221, and the upper part of the beam 1 has a cross-sectional shape corresponding to the space between the bone units 221 of the plate 22, Characterized in that a blocking member (4) fitted to the lower part of the upper plate (222) of the plate (22) is provided.

In the case where the deck truss deck having a large member dancing is applied to the present invention such that the plate 22 under the truss girder 21 is formed of a deck deck plate, the deck truss deck can also be mounted on the upper surface of the beam 1. In this case, the lower end of the fixing member 31 can be welded to the upper surface of the beam 1 to be coupled.

The lower portion of the fixing member 31 may be formed in accordance with the shape of the bone unit 221 and may extend up to the upper portion 211. A hole may be formed in a predetermined size to allow the concrete to freely move, To be filled.

When the truss decks 2 and 2 'are mounted on the upper surface of the beam 1 as described above, there is a fear that the concrete leaks into the empty space on the side of the bone unit 221.

9 (a), the blocking members 4 are provided on the upper surface of the beam 1, and both ends of the blocking members 4 are connected to adjacent truss decks 2, 2 'in the space between the bone units 221 to prevent the concrete from leaking.

The blocking member 4 can be made of various materials. The blocking member 4 is manufactured to have a size and shape enough to seal a space between the bone units 221, and a synthetic resin pipe may be used.

On the other hand, the higher the height of each bone unit 221, the greater the side pressure of the concrete on the bone unit 221. Therefore, the side plate 221b of the golf deck plate may be curved inward to the inside of the bone unit 221 in order to prevent abrasion when the concrete is poured.

FIG. 10 is a perspective view showing a truss deck continuous joint structure of the present invention when a plate of a truss deck is provided on a side of a beam, and FIG. 11 is a perspective view showing a wedge member inserted between a beam side and a fixing member. And FIG. 12 is a perspective view showing a coupling relation between the truss girder, the fixing member and the wedge member, and FIG. 13 is a perspective view showing a coupling relationship between the fixing member and the wedge member.

10 and 11, the plates 22 of the truss decks 2 and 2 'are provided on the side of the beam 1 and at least one of the truss decks 2 and 2' A wedge member 33 having an inclined surface may be inserted between the fixing member 31 of the truss deck 2 'on the side of the truss deck 2' and the side surface of the beam 1 so that the thickness becomes thinner toward the bottom.

That is, when the truss deck is combined with the truss girder 21 to form a large truss deck such as a deep truss deck, the truss decks 2 and 2 ' Only the image 211 can be continuous on the beam 1.

In this case, in order to transmit the compressive force of the bottom end 212 to the side of the beam 1, the bottom end 212 must be in close contact with the side of the beam 1. In general, however, since the truss decks 2 and 2 'are designed to be short in consideration of manufacturing and construction errors, a predetermined gap may be formed between the bottom end 212 and the side of the beam 1.

Therefore, the wedge member 33 is inserted between the fixing member 31 and the side surface of the beam 1 which are fixedly coupled to the bottom surface 212, so that the bottom surface 212 is brought into close contact with the side surface of the beam 1.

10, one end of the truss deck 2 is in close contact with the side of the beam 1 and the wedge member 33 is provided at the end of the other truss deck 2 ' 1) so that there is no gap therebetween.

10, the wedge members 33 may be provided only at the ends of the one truss deck 2, but the wedge members 33 may be provided at the ends of the truss decks 2, 2 ' Do.

12 and 13, the fixing member 31 includes an upper fixing part 311 to which an end of the phase current 211 is coupled and fixed, A lower fixing part 312 and a pair of vertical connection parts 313 connecting the upper fixing part 311 and the lower fixing part 312. The wedge member 33 has a lower fixing part 312 A sliding groove 316 inclined to correspond to the wedge member 33 is formed on an outer side surface of the lower fixing part 312 which is in close contact with the wedge member 33 .

At this time, the pair of sliding grooves 316 are formed to be parallel to each other at a predetermined interval, and the wedge member 33 is formed in an inverted U-shape so that the lower portion is inserted into the pair of sliding grooves 316 can do.

Thereby, when the wedge member 33 is inserted by sliding, the lower end portion 212 does not interfere with the protruding portion due to the engagement of the fixing member 31 with the lower fixing portion 312.

The wedge member 33 may be attached to the sliding groove 316 of the fixing member 31 in advance by tape or the like before mounting the truss decks 2 and 2 ' After the installation, the wedge member 33 may be slid downward by being hit by a tool such as a rubber hammer or a screwdriver.

For this, a tool insertion groove 331 for inserting a screwdriver may be formed on the upper surface of the wedge member 33. Therefore, the driver can be inserted into the tool insertion groove 331, and the upper end of the driver can be hit with a rubber hammer or the like to slide the wedge member 33 downward.

The end portion of the one truss deck 2 where the wedge member 33 is not provided must transmit the compressive force of the bottom end 212 to the side of the beam 1 by the under pressure, 316 may be formed to increase the acupressure area

Figs. 14 and 15 are perspective views showing a coupling relation between a truss deck installed in an outermost span and a beam. Fig.

The truss deck end continuous joint structure of the present invention comprises a pair of beams (1) arranged parallel to each other; A plurality of rows of truss girders 21 are fixed on the upper surface of the plate 22, which is composed of a phase current 211 and a lower phase 212 and a work 213 connecting the phase current 211 and the lower phase 212 A truss deck 2 whose longitudinal ends are respectively coupled to both sides of the beam 1; And a truss deck connector (3) for interconnecting the end of the truss deck (2) with the top of the beam (1) to form a fixed end; Wherein the truss deck connector 3 includes a fixing member 31 to which the ends of the upper and lower ends 211 and 212 of the truss deck 2 are fixedly coupled, 1) upper portion of the truss deck 2 to transmit a tensile force of the truss deck 2. [

Figs. 14 and 15 show an example of the case of a single span, in which one truss deck 2 is connected to the upper end of the beam 1 located on both sides to constitute a fixed end at both ends.

14 shows that the plate 22 of the truss deck 2 is located above the beam 1 and the plate 22 of the truss deck 2 is positioned on the beam 1 side in Fig. (1).

In the case of the embodiment shown in Figs. 14 and 15, the other configuration is the same as that of the embodiment shown in Figs. 1 and 4, except that one truss deck 2 is coupled to the upper end of the beam 1 located on both sides As you can see.

The plate 22 of the truss deck 2 is mounted on the upper surface of the beam 1 and the lower end of the fixing member 31 is welded to the upper surface of the beam 1 to join the truss deck 2 to the beam 1. [ can do.

The fixing member 31 coupled to the end of the truss deck 2 can be interconnected with the upper portion of the beam 1 and the connecting member 32.

For this purpose, a fastener may be provided on the upper surface of the beam 1 as a span discontinuous end, and the connecting member 32 may be connected to a fastener to transmit a tensile force. As the end of the truss deck 2 is fixed, Can be reduced.

An example of a fastener coupled to the upper surface of the beam 1 is a fastening plate 11 and the fastening plate 11 is connected to the fastening member 31 by a connecting member 32.

In addition, the lower part of the pair of beams 1 can be interconnected by a wire 5.

In the case of a single span, the end effector may cause the member to distort due to the end fixed end. Therefore, as shown in FIG. 16A, which will be described later, the lower surface of the beam 1 is connected in parallel with the wire 5 to prevent twisting.

At this time, the wire 5 can be coupled to the wire fixing hole 6 coupled to the lower portion of the beam 1 and fixed thereto.

16 is a conceptual diagram showing the arrangement of wires before installation of the truss deck.

16A, in the case of the single span slab, the torsion acts on the beam 1 together with the deflection of the truss deck 2 when the truss deck 2 is installed due to the end fixed end.

At this time, if the lower surface of the beam 1 is connected in parallel to the wire 5, the beam 1 is not twisted.

On the other hand, as shown in FIG. 16 (b), the truss deck 2 is fixed only to one side in the case of the outermost beam 1, so that the torsion occurs in the beam 1 during the load operation.

At this time, if the lower part of the beam 1 is connected to one end of the adjacent other side beam 1 by the wire 5, the beam 1 does not rotate in the section.

17 is a conceptual diagram comparing moments according to the slab end fixed state.

As can be seen from Fig. 17, if the end of the slab is simply supported, the moment is distributed as indicated by the dotted line. However, if the both ends of the slab are fixed, the moment decreases as shown by the solid line, and the deflection of the member can be reduced.

1: beam 11: fixed plate
2, 2 ': truss deck 21: truss girder
211: The current image 212: The bottom image
213: workpiece 22: plate
221: bone unit 221a:
221b: side plate 222: upper plate
3: Truss deck connector 31: Fixing member
311: upper fixing part 312: lower fixing part
313: Vertical connector 314: Horizontal connector
315: compression member 316: sliding groove
317: flat part 32: connecting member
33: wedge member 331: tool insertion groove
4: blocking member 5: wire
6: Wire clamp

Claims (14)

A beam (1) in which at least three or more are arranged parallel to each other;
A plurality of rows of truss girders 21 are fixed on the upper surface of the plate 22, which is composed of a phase current 211 and a lower phase 212 and a work 213 connecting the phase current 211 and the lower phase 212 , A pair of truss decks (2, 2 ') whose lengthwise ends are respectively coupled to both sides of the beam (1); And
A truss deck connector 3 for interconnecting the ends of the pair of truss decks 2, 2 'to form a continuous end; Respectively,
The truss deck connector 3 includes a fixing member 31 to which the ends of the upper and lower ends 211 and 212 of the truss deck 2 are fixedly connected and a fixing member 31 to which the truss deck 2 , And a connecting member (32) interconnecting the fixing member (31) coupled to the end of the truss deck (2, 2 ') to transmit the tensile force of the truss deck (2, 2').
The method of claim 1,
Wherein the connecting member (32) is provided at the same height as the phase current (211).
3. The method of claim 2,
The fixing member 31 includes an upper fixing part 311 to which an end of the phase current 211 is coupled and fixed, a lower fixing part 312 to which the end of the lower fixing part 212 is fixedly coupled, And a vertical connecting member 313 connecting the lower fixing part 312 and the upper fixing part 311 of the fixing member 31 in the width direction of the truss decks 2 and 2 ' Are interconnected by horizontal coupling members 314,
Wherein the connecting member (32) interconnects the horizontal connecting member (314) of the one truss deck (2) with the horizontal connecting member (314) of the other truss deck (2 ').
4. The method of claim 3,
Wherein the horizontal connecting member (314) is bent so that its central portion protrudes in the direction of the other truss deck (2 '), and the protruded central portion is connected to the connecting member (32).
5. The method of claim 4,
And a compression member (315) is fixedly coupled to the rear surface of the upper fixing part (311) adjacent to the truss deck in the width direction.
4. The method of claim 3,
Wherein the upper fixing part (311) and the horizontal coupling part (314) are integrally formed with each other.
7. The method according to any one of claims 1 to 6,
A fixing member (31) coupled to an outer end of a truss deck (2, 2 ') installed at an outermost span is interconnected by an upper portion of the outermost beam (1) and a connecting member (32) Deck end continuous joint structure.
8. The method of claim 7,
And a lower portion of the beam (1) disposed at the outermost portion is connected to one end of an adjacent beam (1) by a wire (5).
A pair of beams (1) arranged parallel to each other;
A plurality of rows of truss girders 21 are fixed on the upper surface of the plate 22, which is composed of a phase current 211 and a lower phase 212 and a work 213 connecting the phase current 211 and the lower phase 212 A truss deck 2 whose longitudinal ends are respectively coupled to both sides of the beam 1; And
A truss deck connector 3 for interconnecting the end of the truss deck 2 with the upper portion of the beam 1 to form a fixed end; Respectively,
The truss deck connector 3 includes a fixing member 31 to which the ends of the upper and lower ends 211 and 212 of the truss deck 2 are fixedly connected, And a connecting member (32) for interconnecting the truss deck (2) and transmitting tensile force of the truss deck (2).
10. The method according to claim 1 or 9,
Characterized in that the plate (22) of the truss deck (2, 2 ') is mounted on the upper surface of the beam (1) and the lower end of the fixing member (31) is welded on the upper surface of the beam Joint structure.
11. The method of claim 10,
The plate 22 of the truss decks 2 and 2 'includes a plurality of bone units 221 constituted by a lower plate 221a and a pair of side plates 221b bent upward at both ends of the lower plate 221a, And the adjacent bone units 221 are connected to each other by the upper plate 222 at the upper end of the side plate 221b and the lower end 212 is provided in the bone unit 221 ,
The upper part of the beam 1 is provided with a blocking member 4 having an end section corresponding to the space between the bone units 221 of the plate 22 and having an end fitted under the upper plate 222 of the plate 22 Wherein the truss deck end continuous joint structure is provided with a truss deck end continuous joint structure.
The method of claim 9,
Characterized in that the lower part of the pair of beams (1) is interconnected by a wire (5).
3. The method of claim 2,
The plate 22 of the truss decks 2 and 2 'is provided on the side of the beam 1 and the plate 22 of the truss deck 2' is provided on at least one of the truss decks 2 and 2 ' Wherein a wedge member (33) having an inclined surface is inserted between the fixing member (31) and the side surface of the beam (1) so that the thickness becomes thinner toward the lower side.
The method of claim 13,
The fixing member 31 includes an upper fixing part 311 to which an end of the phase current 211 is coupled and fixed, a lower fixing part 312 to which the end of the lower fixing part 212 is fixedly coupled, 311 and a pair of vertical connection members 313 connecting both sides of the lower fixing part 312. The wedge member 33 is inserted between the lower fixing part 312 and the side surface of the beam 1,
Wherein a sliding groove (316) inclined so as to correspond to the wedge member (33) is formed on an outer side surface of a lower fixing part (312) in close contact with the wedge member (33).

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