WO2016032207A1

WO2016032207A1 - Assembly expansion composite beam

Info

Publication number: WO2016032207A1
Application number: PCT/KR2015/008876
Authority: WO
Inventors: 강병구
Original assignee: (주)씨지스플랜
Priority date: 2014-08-25
Filing date: 2015-08-25
Publication date: 2016-03-03
Also published as: KR101514606B1

Abstract

The present invention relates to an assembly expansion composite beam comprising: a pair of web plates which have provided on the upper end thereof an upper flange bent horizontally and which are placed away from each other so as to become side boards of a composite beam; a plurality of lower plates which have provided on both ends end flanges bent vertically and which are placed such that the end flanges come in contact with the lower ends of the web plates or other end flanges, thereby becoming the floor board of the composite beam; coupling bolts which pass through a plurality of through holes formed on the end flanges and the lower sides of the web plates, respectively, thereby coupling in the horizontal direction the end flanges with the other end flanges or the lower ends of the web plates; and coupling nuts. The present invention enables manufacturing of a lower plate of a composite beam, which is formed from a thin board (4.5t-12t) and has wide width, in accordance with the restriction for width to thickness ratio of a board, and can increase the expandability of the width of a lower flange even when using the thin board.

Description

Prefabricated Expanded Composite Beam

The present invention relates to a composite beam, and more particularly to a prefabricated expansion composite beam.

Currently, the production of synthetic beams used at home and abroad is almost dependent on cold forming. This method is a method of producing a product by inserting a coil wound on a steel sheet, which is a material for injection, which is widely used to minimize the loss of materials and to produce quickly.

However, this method uses non-standard sized materials rather than standard sized products, which leads to higher costs due to stock acquisition and higher production and financial costs due to excessive investment of machinery.

In addition, most of the products are in the form of large companies have exclusive production rights for the above reasons, the price of the product is relatively high due to the profit application without competition.

In addition, the product from the conventional single molding machine is limited in its production, so when multiple sites are ordered at the same time, the reality is that the lead number is very difficult, and the reality is that the customer sees the producer.

Conventional composite beams are used for cold-formed products by welding, but the warpage of the plate may occur during cold forming, there is a problem that it is difficult to produce a variety of products when using welding. In addition, when the main member is manufactured by welding due to the characteristics of the thin plate, thermal deformation due to welding heat inevitably occurs.

On the other hand, when the width of the beam is narrow, that is, in the case of a composite beam having a size that is not constrained by the limitation of the thickness ratio of the plate width of the compressed composite member, the compressed steel element, the shape of the lower flange can be simplified. However, in the case of restraint of the thickness ratio, the ribs may be formed in the lower flange or a shape or steel may be inserted into the lower flange to maintain the strength.

Conventional wide composite beams are mainly used to cut the iron plate on the lower flange, flatten the plate and weld two webs to the upper and lower flanges, but this is a shape that is restricted by the thickness ratio of the plate width. This is because when welding the thin steel plates with each other, there is a problem that the welding variation occurs and it is practically difficult to correct the variation.

Therefore, when the product is manufactured from thin plates (hereinafter, thin plates), that is, steel of less than 6t to 12t, which is the minimum steel of the structural members, the thinner steel inserts ribs in order to meet the limit of the thickness ratio of the filled composite member and the compressed steel element. The smaller the size and the thicker the plate, there is a problem that the application size of the rib is larger.

It is an object of the present invention to provide a prefabricated expanded composite beam that can vary the cross-sectional width and thickness of the composite beam.

In order to achieve the above object, the prefabricated expansion composite beam according to an embodiment of the present invention has a horizontal upper bent top flange, a pair of web plates spaced apart from each other to be a side plate of the composite beam; A plurality of lower plates having end flanges vertically bent at both ends and arranged such that the end flanges abut the bottom or other end flanges of the web plate to be the bottom plate of the composite beam; A fastening bolt which penetrates the end flange and the lower end of the web plate or the end flanges in a horizontal direction through a plurality of through holes respectively formed in the lower side of the web plates and the end flanges; And fastening nuts.

Here, the head of the fastening bolt for fastening the web plate and the end flange may face the outside, the fastening nut may be coupled to the fastening bolt from the inside.

In addition, the upper flange may be bent toward the outside of the composite beam, the end flange may be bent toward the upper side of the composite beam.

Furthermore, the end flange abutting with the lower side of the web plate may be arranged to abut on the inner side of the web plate.

In addition, the end flange abutting with the lower side of the web plate may be arranged to abut on the outside of the web plate.

In addition, between the lower side of the web plate and the end flange, each of the tension reinforcing plate corresponding to the shape of the end flange may be further included in the longitudinal direction.

Furthermore, a lower side of the web plate disposed at the outermost side or an outer side of the end flange may further include a tension reinforcing plate corresponding to the shape of the end flange in the longitudinal direction.

In addition, the outer side of the tension reinforcing plate, may further include a c-beam or a-beam in the longitudinal direction for lower reinforcement.

In addition, the upper flange may be bent toward the outside of the composite beam, the end flange may be bent toward the lower side of the composite beam.

In addition, the upper flange is bent toward the outside of the composite beam, the lower plate, the end flange of one side may be bent toward the lower side of the composite beam, the other end flange may be bent toward the upper side of the composite beam.

The apparatus may further include a second composite beam unit coupled to an upper side of the prefabricated expanded composite beam, wherein the second composite beam unit includes a second upper flange bent horizontally at an upper end and a second lower flange bent horizontally at a lower end thereof. And a pair of second web plates spaced apart from each other so as to be side plates of the composite beam, and through the plurality of through holes respectively formed in the second lower flange and the upper flange to fasten the second lower flange and the upper flange. The second fastening bolt and the second fastening nut may be provided.

According to the prefabricated expansion composite beam according to an embodiment of the present invention,

First, the lower plate made of thin plate (less than 4.5t ~ 12t) and wide composite beam can be manufactured in a form that meets the restriction of plate width thickness ratio, and even the use of thin plate can increase the expandability of the lower flange. have.

Second, the web plate and the lower plate are provided separately, and the composite beam can be assembled using the fastening bolt and the fastening nut, so that the cross section and thickness of the composite beam can be variously modified.

Third, composite beams of various sizes can be manufactured by simplifying and uniformizing the member size due to the molding and welding of conventional composite beams, and a synthetic beam optimized for the orderer and the site conditions can be made by simplifying the manufacturing method through bolts and nuts. have.

Fourth, by applying the thickness of the two web plate and the lower plate differently, it is possible to eliminate unnecessary use of the steel and secure economic feasibility.

Fifth, a tension reinforcing plate may be inserted into the lower or end flange of the web plate to reinforce the lower portion of the web plate vulnerable to tensile force.

Sixth, the bottom of the tension reinforcing plate including the c-shaped steel or channel (channel) steel in the longitudinal direction can be reinforced.

Seventh, the head of the fastening bolt is facing outward, the fastening nut can be kept clean from the outside by engaging the fastening bolt from the inside, the use of the fastening bolt and the fastening nut increases the concrete adhesion amount of the steel.

Eighth, the end flanges which are abutted on the inner side can be joined by fastening bolts and fastening nuts, thereby increasing the amount of concrete attached to steel, thereby eliminating the use of a separate stud bolt.

Ninth, the web plate may be provided with a plurality of brackets and fixing plates to prevent the prefabricated composite beams from opening.

Tenth, it is possible to produce a composite beam of various shapes by variously combining the bending direction of the end flange to the upper side, lower side.

Eleventh, by further comprising a second composite beam unit on the upper side, it is easy to adjust the width and height, it is possible to manufacture a prefabricated expanded composite beam high adaptability to deformation.

1 is a perspective view showing a prefabricated expansion composite beam according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of the prefabricated expansion composite beam shown in FIG.

3 is a perspective view showing a prefabricated expansion composite beam according to another embodiment of the present invention.

4 is an exploded perspective view of the prefabricated expansion composite beam shown in FIG.

5 is a cross-sectional view showing a prefabricated expansion composite beam according to another embodiment of the present invention.

6 and 7 are cross-sectional views showing a prefabricated expansion composite beam according to another embodiment of the present invention.

8 is a perspective view showing a prefabricated expansion composite beam according to another embodiment of the present invention.

9 is an exploded perspective view of the prefabricated expansion composite beam shown in FIG. 8.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it is noted that the same components in the accompanying drawings are represented by the same reference numerals as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted. For the same reason, in the accompanying drawings, some components are exaggerated, omitted or schematically illustrated.

1 is a perspective view showing a prefabricated expansion composite beam according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the prefabricated expansion composite beam shown in FIG.

1 and 2, the prefabricated expanded composite beam 100 includes a pair of web plates 110, a plurality of lower plates 120, fastening bolts 130, and fastening nuts ( 140). The prefabricated expansion composite beam (CB) is filled with concrete in the interior of the pair of web plates 110 and the lower plates 120, which are external structural materials in the field.

The pair of web plates 110 is provided with a top flange 111 bent horizontally at the top, and are spaced apart from each other to be a side plate of the composite beam.

The plurality of lower plates 120 includes end flanges 121 that are vertically bent at both ends, and the bottom flanges 121 and the lower ends of the web plates 110 abut on the bottom plate of the composite beam, and the end flanges 121 The other end flange 121 is arranged to abut. The upper flange 111 is bent toward the outside of the composite beam, the end flange 121 is bent toward the upper side of the composite beam. By applying different thicknesses of the two web plates 110 and the lower plate 120, it is possible to eliminate unnecessary use of steel and to secure economical efficiency.

On the other hand, the end flanges 121 which are abutted from the inside is joined to the fastening bolt 130 and the fastening nut 140 to obtain an effect of increasing the concrete adhesion amount of the steel can be used to exclude the use of a separate stud bolt.

Next, the fastening bolt 130 and the fastening nut 140 are formed through the plurality of through holes (110a) formed in the lower side of the web plate 110 and the plurality of through holes (121a) formed in the end flanges 121, respectively. Through and fastening the lower end of the end flange 121 and the web plate 110 in the horizontal direction, and the end flanges 121 are fastened to each other in the horizontal direction. The fastening bolt 130 and the fastening nut 140 may be used to be used for high tension bolt for construction.

When the main member is manufactured by welding, thermal deformation inevitably occurs due to the nature of the thin plate. Therefore, all the joints of the main members of the structure take the form that can be joined by bolts to block the cause of welding deformation in the first place and to improve the production and productivity by bolted joints.

Here, the head of the fastening bolt 130 for fastening the web plate 110 and the end flange 121 is directed toward the outside, the fastening nut 140 may be combined with the fastening bolt 130 from the inside to clean the finish. .

As shown in FIGS. 1 and 2, the end flange 121 abutting against the lower side of the web plate 110 may be disposed to abut on the outside of the web plate 110.

On the other hand, between the lower side and the end flange 121 of the web plate 110, may further include a tension reinforcing plate 150 corresponding to the shape of the end flange 121, respectively in the longitudinal direction. A through hole 150a is also formed in the tension reinforcing plate 150 to fasten the fastening bolt 130 and the fastening nut 140. Thus, the tension reinforcing plate 150 may be inserted between the lower side and the end flange 121 of the web plate 110 to reinforce the lower portion of the web plate 110 vulnerable to tensile force.

3 is a perspective view showing a prefabricated expansion composite beam according to another embodiment of the present invention, Figure 4 is an exploded perspective view of the prefabricated expansion composite beam shown in FIG.

3 and 4, the prefabricated expansion composite beam 100 includes a pair of web plates 110, a plurality of lower plates 120, fastening bolts 130, and fastening nuts 140.

1 and 2, the end flange 121, which abuts against the lower side of the web plate 110, is disposed to abut on the inside of the web plate 110.

Here, the tension reinforcing plate 150 corresponding to the shape of the end flange 121 may be further included between the lower side and the end flange 121 of the web plate 110 in the longitudinal direction.

Next, Figure 5 is a cross-sectional view showing a prefabricated expansion composite beam according to another embodiment of the present invention.

As shown in (a) of FIG. 5, a tension reinforcing plate corresponding to the shape of the end flange 121 is formed at the lower side of the web plate 110 disposed at the outermost side of the prefabricated expanded composite beam or the outside of the end flange 121. 160 may be further included in the longitudinal direction.

At this time, as shown in Figure 5 (b), the outer side of the tension reinforcement plate 160 may further include a c-beam (170) in the longitudinal direction for lower reinforcement, as shown in (c) of Figure 5 The outer side of the tensile reinforcing plate 160 may further include a a-beam 180 in the longitudinal direction for lower reinforcement.

Here, the web plate 110 may be provided with a plurality of fixing plates 310 to prevent the opening. The fixing plate 110 will be described later.

As shown in Figure 6, the upper flange 111 is bent toward the outside of the composite beam. The lower plate 120 has one end flange 121 'bent toward the lower side of the composite beam, and the other end flange 121 is bent toward the upper side of the composite beam.

Thus, one end flange 121 'is bent toward the lower side of the composite beam, and the other end flange 121 is bent toward the upper side of the composite beam, whereby a space S is formed at the lower side of the composite beam, and fastened by this space. A space for working the bolt 130 and the fastening nut 140 is provided.

As shown in FIG. 7, the upper flange 111 may be bent toward the outside of the composite beam, and the end flange 121 may be bent toward the lower side of the composite beam.

Thus, the end flange 121 is bent toward the lower side of the composite beam to form a space (S) on the lower side of the composite beam, the space is provided with a space for the work of the fastening bolt 130 and the fastening nut 140. do.

8 is a perspective view showing a prefabricated expansion composite beam according to another embodiment of the present invention, Figure 9 is an exploded perspective view of the prefabricated expansion composite beam shown in FIG.

As illustrated in FIGS. 8 and 9, the prefabricated expansion composite beam 100 includes a second composite beam unit 200 coupled to an upper side of the prefabricated expansion composite beam 100.

The second composite beam unit 211 includes a pair of second web plates 210, a second fastening bolt 230, and a second fastening nut 240.

The second web plate 210 includes a second upper flange 211 horizontally bent at the upper end and a second lower flange 212 horizontally bent at the lower end, and are spaced apart from each other to form a side plate of the composite beam.

The second fastening bolt 230 and the second fastening nut 240 may include a plurality of through holes 212a formed in the second lower flange 212 and a plurality of through holes 111a formed in the upper flange 111, respectively. Through and fasten the second lower flange 212 and the upper flange 111.

Meanwhile, the web plate 110 and the second web plate 210 may further include a plurality of fixing plates 310 and a plurality of brackets 320 in order to prevent opening.

A plurality of brackets 320 is fixed toward the inside of the composite beam, the fixing plate 310 is coupled to the brackets 620 and the bolt (B) facing each other. As shown in the drawing, the fixing plate 310 should be placed upright in the vertical direction to facilitate fastening with the bracket 320.

Thus, according to the present invention, the web plate 110 and the lower plate 120 may be separately provided, and the composite beam may be assembled using the fastening bolt 130 and the fastening nut 140 to variously change the cross section and thickness of the composite beam. Can be.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

Claims

A pair of web plates having horizontally bent upper flanges at the top and spaced apart from each other to be side plates of the composite beam;

A plurality of lower plates having end flanges vertically bent at both ends and arranged such that the end flanges abut the bottom or other end flanges of the web plate to be the bottom plate of the composite beam;

A fastening bolt which penetrates the end flange and the lower end of the web plate or the end flanges in a horizontal direction through a plurality of through holes respectively formed in the lower side of the web plates and the end flanges; And a prefabricated expanded composite beam comprising a fastening nut.
The method according to claim 1,

Prefabricated expansion composite beam, characterized in that the head of the fastening bolt for fastening the web plate and the end flange is facing outward, the fastening nut is coupled to the fastening bolt from the inside.
The method according to claim 1,

The upper flange is bent toward the outside of the composite beam,

The end flange is prefabricated expansion composite beam, characterized in that bent toward the upper side of the composite beam.
The method according to claim 3,

The end flange in contact with the lower side of the web plate,

Prefabricated expansion composite beam, characterized in that arranged to abut on the inside of the web plate.
The method according to claim 3,

The end flange in contact with the lower side of the web plate,

Prefabricated expansion composite beam, characterized in that arranged to abut on the outside of the web plate.
The method according to claim 3,

Between the lower side of the web plate and the end flange, respectively

Prefabricated expansion composite beam further comprises a longitudinal reinforcing plate corresponding to the shape of the end flange in the longitudinal direction.
The method according to claim 3,

The lower side of the web plate disposed on the outermost side or the outer side of the end flange, prefabricated expansion composite beam further comprises a tension reinforcing plate corresponding to the shape of the end flange in the longitudinal direction.
The method according to claim 7,

On the outside of the tension reinforcing plate,

Prefabricated expanded composite beam further comprises a c-beam or a-beam in the longitudinal direction for lower reinforcement.
The method according to claim 1,

The upper flange is bent toward the outside of the composite beam,

The end flange is prefabricated expansion composite beam, characterized in that bent toward the lower side of the composite beam.
The method according to claim 1,

The upper flange is bent toward the outside of the composite beam,

The lower plate, prefabricated expansion composite beam, characterized in that the end flange of one side is bent toward the lower side of the composite beam, the other end flange is bent toward the upper side of the composite beam.
The method according to claim 1,

Further comprising a second composite beam unit coupled to the upper side of the prefabricated expansion composite beam,

The second composite beam unit,

A pair of second web plates having a second upper flange bent horizontally at the top and a second lower flange bent horizontally at the bottom and spaced apart from each other to be a side plate of the composite beam;

And a second fastening bolt and a second fastening nut through the plurality of through holes formed in the second lower flange and the upper flange to fasten the second lower flange and the upper flange, respectively. .