KR102443153B1 - Composite Beam with H-Shaped Steel for Layer Savings - Google Patents

Abstract

Disclosed is a composite beam with a H-shaped steel for layer savings, which can be easily manufactured by using an existing standardized H-shaped steel so as to shorten a delivery period, use flexural strength of a cross-section without reduction by buckling by having excellent torsional resistance of the cross-section, compensate for medium-term and long-term sagging by reinforcing both sides of a H-shaped steel web with a reinforcement molding member so as to overcome a sagging problem when used while playing a role as a mold for placing concrete inside, and save layers by locating a holding surface of a deck inside a beam of the H-shaped steel. According to one exemplary embodiment of the present invention, the composite beam filled with concrete inside includes: a H-shaped steel which forms a H-shaped cross-section and consists of a vertical plate-shaped web and an upper flange and a lower flange formed horizontally at upper and lower ends of the web, respectively; and a pair of reinforcement molding members which consist of a vertical plate-shaped web reinforcement plate, a lower support plate extended from a lower end of the web reinforcement plate horizontally outward, a side surface plate extended from an outer end of the lower support plate upward to a certain height of a lower part of the upper flange, and a holding plate extended from an upper end of the side surface plate horizontally inward and in which both sides of the web are formed to be symmetrical, so that the web reinforcement plate can come in contact with the web and the lower support plate can be held on an upper surface of the lower flange.

Description

H-Shaped Steel for Layer Savings {Composite Beam with H-Shaped Steel for Layer Savings}

The present invention relates to an H-beam composite beam for reducing the height of the floor, and more specifically, it is easy to manufacture by using an existing standardized H-beam, so that the delivery period can be shortened, and the torsion resistance of the section is excellent, so that the flexural strength of the section is reduced for buckling. It can be used without reduction due to the fact that both sides of the web of H-beam are reinforced with reinforcing molding members to compensate for mid- and long-term sagging, which can serve as a formwork to allow concrete to be poured inside while overcoming the problem of sagging during use. It relates to an H-beam composite beam for floor height reduction that allows to reduce the floor height by placing it within the H-beam dance garment.

A beam is a structural member that supports a load by bending and shearing, and is also called a flexural member because the bending moment mainly dominates the structural behavior. The beam mainly generates stress and deformation due to bending and shearing, but if the applied load does not coincide with the shear center of the section, torsion may be accompanied. Therefore, the beam must have sufficient bending strength and shear strength (or torsional strength), and since it is used as a horizontal member, usability against deflection must be secured.

In particular, as the cross-section of the steel beam member, the H-shaped cross-section is mainly used, and the box-shaped, I-shaped, and C-shaped cross-sections are also used. A box section is sometimes used when receiving a load or when the buckling length is very long, and in particular, the height (thickness) of the base plate and the height of the steel beam member are different because the type of supporting the base plate on the section of the upper element is common for steel beam members. It is difficult to reduce the height of the floor as it has an exposed structure that must be secured.

And the existing beam member was deflected during use, and there was a problem in that the cross section was enlarged or the amount of steel used was increased in order to solve this problem.

As the technology that is the background of the present invention, there is Korean Patent Registration No. 0626542 "Composite beam structure using steel plate forming beam and concrete" (Patent Document 1). In the background art, '(a) a bottom plate formed by horizontally installing a thin plate-type steel plate to form the lower surface of the beam; a pair of side vertical plates extending in a vertical direction from both ends of the bottom plate and forming both sides of the beam; a support wing portion extending horizontally from the upper end of the side vertical plate; a central vertical plate erected in a vertical direction from the upper center of the bottom plate and formed to have a longer length than the length of the side vertical plate; a steel plate forming beam comprising; an upper flange extending horizontally from the upper end of the central vertical plate to form a 'T' shape with the central vertical plate; (b) a bottom plate unit installed so that the end is supported on the upper portion of the support wing of the steel plate forming beam to form a slab structure; and (c) beam-slab concrete poured integrally into the inside of the steel plate forming beam and the upper part of the floor plate unit; One end of the bottom plate is bent upward to form a side vertical plate, and the upper end of the side vertical plate is horizontally bent to form a support wing, and at the same time, the other side of the bottom plate is bent upward to form a central vertical plate, and the center A half-steel plate-formed beam is prepared by horizontally bending the upper end of a vertical plate to form an upper flange, and a pair of half-steel plate-formed beams are attached to each other so that the center vertical plates face each other. Using a steel plate forming beam and concrete A composite beam structure is proposed.

However, the background art also has a problem in that the cross-section is enlarged or the amount of steel is increased to prevent sagging during use, and the entire interior of the cross-section is filled with concrete.

Republic of Korea Patent Registration No. 0626542 "Composite beam structure using steel plate forming beam and concrete"

The present invention is to solve the above problems, the flexural strength of the cross section can be used without reduction due to buckling, the cross section can be efficiently designed while reducing the amount of concrete pouring, An object of the present invention is to provide a floor height reduction composite beam that can reduce the floor height by configuring the mounting member to mount the deck.

The present invention relates to a composite beam filled with concrete therein, comprising: a vertical plate-shaped web, an H-shaped steel having an H-shaped cross section comprising an upper flange and a lower flange respectively formed in the horizontal direction at the upper end and lower end of the web; A vertical plate-shaped web reinforcing plate and a lower support plate extending in the horizontal outward direction from the lower end of the web reinforcing plate, a side plate extending upwardly from the outer end of the lower support plate to a certain height under the upper flange, and at the upper end of the side plate Consists of a mounting plate extending in the horizontal inward direction, a pair of reinforcing molding members configured symmetrically on both sides of the web so that the web reinforcing plate is in contact with the web and the lower support plate is mounted on the upper surface of the lower flange;
The reinforcing molding member is formed in the entire longitudinal direction of the H-shaped steel, the web reinforcing plate of the reinforcing molding member is made of a height corresponding to the entire height of the web of the H-shaped steel, and the upper end of the web reinforcing plate of the reinforcing molding member has a horizontal outward direction. The upper support plate is formed so as to extend to and contact the lower surface of the upper flange of the H-shaped steel, and the reinforcing molding member is fitted and fixed in the U-shaped section of both sides of the web consisting of the H-shaped web, the upper flange, and the lower flange, thereby preventing torsion of the H-shaped steel and An object of the present invention is to provide an H-beam composite beam for floor height reduction, characterized in that it prevents sagging.

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In addition, it is intended to provide an H-shaped steel composite beam for floor height reduction, characterized in that a plurality of gap maintaining members are configured to connect the mounting plate of the reinforcing molding member and the web reinforcing plate.

In addition, it is intended to provide an H-beam composite beam for floor height reduction, characterized in that the coupling between the H-beam steel and the reinforcing molding member is coupled with a plurality of bolts.

The H-beam composite beam for floor height reduction of the present invention can be easily manufactured by using the existing standardized H-beam, so that the delivery period can be shortened. By reinforcing both sides of the web of H-beam with reinforcing molding members, it can serve as a formwork that allows concrete to be poured inside while overcoming the problem of deflection during use by supplementing medium and long-term deflection during use. It has a very useful effect to reduce the floor height by positioning it.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in the accompanying drawings It should not be construed as being limited.
1 is a perspective view of an H-beam composite beam for floor height reduction of the present invention.
2 is a cross-sectional view of the H-beam composite beam for floor height reduction of the present invention.
Figure 3 is a cross-sectional view showing a construction embodiment of the H-beam composite beam for floor height reduction of the present invention.
Figure 4 is a perspective view showing a construction embodiment of the bonding structure with the column of the H-beam composite beam for floor height reduction of the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the presented embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention will be described in detail according to a preferred embodiment.

1 is a perspective view of an H-beam composite beam for floor height reduction of the present invention, FIG. 2 is a cross-sectional view of an H-beam steel composite beam for floor height reduction of the present invention, and FIG. 3 is construction of an H-beam composite beam for floor height reduction of the present invention It is a cross-sectional view showing an embodiment.

H-beam composite beam 1 for floor height reduction of the present invention is, as in FIGS. It consists of a pair of reinforcing molded parts 20 configured to be in contact.

The H-beam 10 uses an existing standardized H-beam, and the vertical plate-shaped web 110 and the upper flange 120 and lower flange respectively formed in the horizontal direction at the upper end and lower end of the web 110, respectively. (130) to form an H-shaped cross section.

The reinforcing molding member 20 is configured on both sides of the web 110 to form a symmetry, and a lower support plate 220 extending in the horizontal outward direction from the lower end of the web reinforcing plate 210 and the web reinforcing plate 210 in a vertical plate shape. ), a side plate 230 extending upward from the outer end of the lower support plate 220 to a predetermined height below the upper flange 120, and a mounting plate extending in the horizontal inward direction from the upper end of the side plate 230 ( 250) should be done.

At this time, the reinforcing molding member 20 may be formed in the entire longitudinal direction of the H-shaped steel 10, and may be formed only in some sections if necessary, and a cross section may be formed by bonding separate members, It can be formed by bending one steel plate.

Such a reinforcing molding member 20 is a vertical plate-shaped web reinforcing plate 210 and a lower supporting plate 220 extending in the horizontal outward direction from the lower end of the web reinforcing plate 210, respectively, one side of the web 110 and It is configured to be in contact with the upper surface of the lower flange 130, and the corner where the web reinforcement plate 210 and the lower support plate 220 meet is at the corner where the web 110 and the lower flange 130 of the H-shaped steel 10 meet. It should be made into a shape corresponding to it, such as a round, so as to be in close contact.

The web reinforcing plate 210 may be formed only up to a certain height of the web 110, as in FIG. 2a, and as in FIG. 2b, to be made to a height corresponding to the entire height of the web 110 and the web ( 110) can be reinforced to compensate for mid- to long-term sagging when pouring concrete inside.

The lower support plate 220 extends horizontally outward from the lower end of the web reinforcing plate 210. At this time, the outer end of the web reinforcing plate 210 protrudes a certain distance from the outer end of the lower flange 130, so that the cross section of the beam to determine the width of the , and to be configured to overlap the upper portion of the lower flange 130 to serve to additionally supplement the deflection.

The side plate 230 extends upward from the outer end of the lower support plate 220 to a predetermined height under the upper flange 120 to serve as a formwork for pouring concrete together with the lower support plate 220 . At this time, the height of the upper end of the side plate 230 can be made variously because it becomes the height at which the deck is mounted, and in particular, it is made to exist in the dance of the H-shaped steel 10 so as to reduce the floor height. The side plate 230 is preferably extended vertically upwardly, but may be extended upwardly in an oblique direction outside or inside if necessary.

The mounting plate 250 extending in the horizontal inward direction from the upper end of the side plate 230 is configured such that the deck 2 is stably mounted as shown in FIG. 3 , while the mounting height of the deck 2 is a composite beam. It is located within the dance floor of the building so that the floor height can be reduced.

In this way, the H-shaped steel 10 has a web reinforcing plate 210 in contact with the web 110 and the reinforcing molding member 20 is formed so that the lower support plate 220 is mounted on the upper surface of the lower flange 130 , the web 110 ). It is configured symmetrically on both sides of the web 110 to restrain and reinforce it.

The reinforcing molding member 20 may be joined to the H-shaped steel 10 by a method such as welding, but the coupling between the H-shaped steel 10 and the reinforcing molding member 20 is fastened with a plurality of bolts 40 and welded. Increase safety in the field by minimizing the work, and in particular, as shown in FIG. 3, when the concrete 3 is poured inside, it serves as a shear connector.

In addition, the reinforcing molding member 20 extends in the horizontal outward direction to the upper end of the web reinforcing plate 210 to form the upper support plate 240, and the web reinforcing plate 210 and the lower support plate 220 together with the C-shaped To have a cross-section, it is stably supported while being fixed in the U-shaped cross-section of both sides of the web 110 made of the web 110, the upper flange 120, and the lower flange 130 of the H-shaped steel 10, and is supported even to torsion, etc. While preventing separation, the web 110 of the H-shaped steel 10, the upper flange 120 and the lower flange 130 are overlapped at the same time to effectively prevent sagging.

Such a reinforcing molding member 20 may be formed by bending a thin steel plate, and since concrete is poured therein, there may be problems such as the side plate 230 being widened by pouring pressure, etc., the reinforcement molding member A plurality of spacing members 30 may be configured to connect the mounting plate 250 and the web reinforcement plate 210 of (20).

At this time, the spacing member 30 may be installed at equal intervals or unequal intervals in the longitudinal direction of the composite beam, may be formed only in necessary sections, may be formed of various members such as plates, channels, angles, and square pipes, and may be formed of a reinforcing molding member ( Both ends of the mounting plate 250 and the web reinforcement plate 210 of 20) may be welded or bolted to each other.

Figure 4 is a perspective view showing a construction embodiment of the bonding structure with the column of the H-beam composite beam for floor height reduction of the present invention.

As shown in Figure 4, the composite beam (1) of the present invention selects a member after the structural calculation of the column (50), and the bracket (70) having the same cross section as the composite beam (1) of the present invention is joined to the column (50) and The composite beam (1) is added to the bracket (70) with a plate (80) to be bolted together.

At this time, in the case of an H-shaped steel column in which the column 50 is formed of a web 510 and an upper and lower flange 520, 530, the column 50, the web 510 side, the vertical plate 610 and the vertical plate 610. The end of the joint plate 620 is joined to the T-beam steel 60 made of the joint plate 620 formed at right angles to the central portion in the width direction, and the bracket 70 is attached to the vertical plate 610 and the upper and lower flanges 520 and 530. ) and connect the composite beam (1) to this bracket (70).

The T-beam 60 is filled with concrete when the composite beam 1 of concrete and the slab are poured.

As described above, the H-beam composite beam for floor height reduction of the present invention can be easily manufactured by using the existing standardized H-beam, so that the delivery period can be shortened. By reinforcing both sides of the web of H-beam with reinforcing molding members to compensate for mid- and long-term deflection, it can serve as a formwork that allows concrete to be poured inside while overcoming the problem of deflection during use. It has a very useful effect to reduce the floor height by placing it in the dance clothes.

So far, the present invention has been described in detail with reference to the presented embodiment, but those skilled in the art can make various modifications and variations of the invention without departing from the technical spirit of the present invention with reference to the presented embodiment. will be. The present invention is not limited by such variations and modifications, but only by the claims appended hereto.

1: Floor height reduction composite beam
10: H-beam
20: reinforcing molding member
210: web reinforcement plate
220: lower support plate
230: side plate
240: upper support plate
250: base plate

Claims (4)

In a composite beam filled with concrete,
A vertical plate-shaped web 110, and an H-shaped steel 10 forming an H-shaped cross section comprising an upper flange 120 and a lower flange 130 respectively formed in the horizontal direction at the upper end and lower end of the web 110, respectively, and ;
A lower support plate 220 extending in a horizontal outward direction from the lower end of the vertical plate-shaped web reinforcing plate 210 and the web reinforcing plate 210, and the upper flange 120 upward from the outer end of the lower support plate 220 lower Consists of a side plate 230 extending to a certain height of the side plate 230 and a mounting plate 250 extending in the horizontal inward direction from the upper end of the side plate 230, the web reinforcing plate 210 is in contact with the web 110 and the lower support plate A pair of reinforcing molding members 20 configured symmetrically on both sides of the web 110 so that 220 is mounted on the upper surface of the lower flange 130;
The reinforcing molding member 20 is formed in the entire longitudinal direction of the H-shaped steel 10, and the web reinforcing plate 210 of the reinforcing molding member 20 corresponds to the entire height of the web 110 of the H-shaped steel 10. The upper support plate 240 is extended in the horizontal outward direction to contact the lower surface of the upper flange 120 of the H-shaped steel 10 at the upper end of the web reinforcement plate 210 of the reinforcing molding member 20 . Formed so that the reinforcing molding member 20 is fitted and fixed in the C-shaped cross-section of both sides of the web 110, which consists of the web 110, the upper flange 120, and the lower flange 130 of the H-shaped steel 10, the H-shaped steel 10 ) H-beam composite beam for floor height reduction, characterized in that it prevents torsion and deflection. delete The method according to claim 1,
H-beam composite beam for floor height reduction, characterized in that a plurality of spacing members 30 are configured to connect the mounting plate 250 of the reinforcing molding member 20 and the web reinforcement plate 210. The method according to claim 1,
H-beam composite beam for floor height reduction, characterized in that the coupling between the H-beam steel 10 and the reinforcing molding member 20 is coupled with a plurality of bolts (40).

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