KR101890274B1 - Steel Frame Construction Method With Double T-Shaped Joint Structure - Google Patents

Abstract

The present invention relates to a method of joining a column and a beam using a column and a U-shaped beam having a double-T-type joint structure and improving the workability and structural performance of the joint between the beam and the column, And a semi-slim frame construction method.
(A) a double-T-shaped bracket having a predetermined length of column, a double-T-shaped bracket coupled to the column at a predetermined height in one or more directions, and a U- A pair of T-shaped stiffeners coupled to the upper portion of the mold body, a reinforcing plate coupled between the upper flange and the upper flange of the pair of T-shaped stiffeners, and a gap formed to connect the upper plate and the upper plate of the U- And a longitudinal stiffener formed at an upper portion or a lower portion of the gap holding member so as to connect the ashes and spacers at least one row in the longitudinal direction of the U-shaped body. (b) installing a column having a double T-shaped bracket at regular intervals; (c) placing both ends of the U-shaped beam between the column and the column on the receiving plate of the double T-shaped bracket so that the upper flange and the upper flange of the U-shaped beam are positioned at the same height; (d) joining the column and the U-shaped beam by attaching a joint plate; (e) mounting a deck plate on the upper plate 213 of the U-shaped beam and assembling the reinforcing bars on the upper plate 213; (f) Placing concrete on the inside of the U-shaped beam and on the deck plate to form a bottom plate.

Description

Technical Field [0001] The present invention relates to a semi-slim frame construction method using a double-T-shaped pillar and a U-

The present invention relates to a semi-slim frame construction method using a column having a double T-shaped joint structure and a U-shaped beam. More particularly, the present invention relates to a method of constructing a double- And more particularly, to a semi-slim frame construction method using a column and a U-shaped beam having a double T-type joint structure capable of improving the workability and structural performance of the joint and reducing the floor height.

Steel Concrete Composite steel beam and reinforced concrete are designed to behave as a single member so that when the bending moment is applied, most of the compressive stress will be imposed on the concrete and tensile stress will be imposed on the steel member. It is possible to secure the shape space of the bridge structure and the bridge structure of the building structure and to increase the resistance strength and the resistance rigidity of the beam cross section, the long span structure becomes possible and the extreme performance and deformation performance are increased.

H-shaped steel, which is generally used to realize steel concrete composite beams, is a member section that effectively resists tensile and compressive forces that occur in a member due to bending when viewed from the side of steel use. However, Since the neutral axis of the composite section moves to the upper flange side, and the concrete slab undergoes most of the compressive force, the upper flange is used as an inefficient bending moment resistance section element. Also, since the performance is excellent in terms of strength evaluation of the composite member, it is widely applied to the long span. In this case, the resistance rigidity of the cross section is relatively small, which indicates problems of usability such as excessive deflection and vibration.

To solve these problems, the concept of a reinforced concrete beam (SRC), which is surrounded by reinforced concrete, was developed. The SRC has the advantage of excellent strength and stiffness of the cross section of the beam, but it has a drawback in that it requires very careful attention to the formwork and construction work at the site construction. In addition, there is no contribution of concrete surrounding the H-shaped section to the tensile stress generated in the lower section of the beam member in the section of the momentum, which is an ineffective structure section. Since the concrete bending crack is visually observed, have.

A TSC beam (steel plate form composite beam) is known to solve problems of inefficiency and usability of the upper flange in the composite beam using the H-shaped beam, and problems of workability and ineffectiveness of the steel reinforced concrete beam .

However, in the case of a steel plate formwork composite such as the above, there is a problem that the structure of the joint portion with the column is complicated and the workability is poor.

As a background of the present invention, there is a patent registration No. 1549417 entitled " Jointed basket for steel composite beam "(Patent Document 1). In the background art, a housing 100 having an upper portion and a longitudinal front and rear portion of the housing 100 is provided with a lower plate 130 connecting the plurality of side plates 120 and the side plates 120 so as to form a space portion 110 therein 1 through which the fixing bolts B-1 are assembled so as to be assembled with the PC girder 10 is formed at one side of the side plate 120 and the lower plate 130. The through holes 121, (B-2) is provided on the surface of the attached plate 140. The mounting bolt (B-2) is provided at the other end of the mounting plate 140 so as to be bent from the side plate and the lower plates 120 and 130 so as to be connected to the outer peripheral surface of the PC column 20. And a slider 122 protruding along the longitudinal direction of the housing 100 is formed on one side of the inner circumferential surface of the side plate 120. The slider 122 is formed in a shape (11) of the PC girder (10), and is attached to the glued plate (14 0) are arranged so as to be in line with the ends of the PC girder 10 and then moved together to be joined to the PC column 20 toward the PC column 20 and joined together, The concrete basket C is formed so as to be laid and the joint basket is constructed so that the field concrete C can be detached (separated) from the PC girder 10 when curing is completed, The slider is protruded in the form of a convex portion and is provided on both sides of the side plate along the longitudinal direction so as to correspond to the slotted rail of the PC girder, And the insert is slid forward when assembled, so that the insert is assembled with the PC column.

However, the background art has a drawback in that it is not possible to reduce the thickness and height, and it is difficult to reinforce the upper end face of the coupling portion.

Patent Registration No. 1549417 "Joint basket for steel composite beam"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a double-T type beam end structure, The bolt fastening method can be applied to improve the workability and structural performance of the joint between the beam and the column and to form the U-shaped beam having the U-shaped section so that the concrete is filled therein, , A part of the slab is located in the dancing of the beam to reduce the height of the beam, thereby reducing the construction period and reducing the construction cost. The semi-slim frame construction using the column and U- The purpose of the method is to provide.

(A) a column of a predetermined length, a receiving plate formed in a horizontal direction, and Shaped cross section formed by an upper flange formed horizontally at a length shorter than the length of the support plate at a predetermined length and a baffle plate formed in a direction perpendicular to the widthwise center of the upper flange, And a T-shaped coupling member spaced apart from each other by a predetermined distance so as to form a work space and formed on both sides in the width direction of the backing plate, A U-shaped body including a side plate extending from both ends of the vertical plate and a top plate extending outwardly from an upper end of the side plate; And a lower end portion of the web is coupled to the upper side of the upper plate of the U-shaped body so as to coincide with the side plates, from the both ends of the U- A pair of T-shaped stiffeners; A reinforcing plate coupled between the upper flange and the upper flange of the pair of T-shaped stiffeners; A space-retaining member formed to connect the upper plate and the upper plate of the U-shaped body in a section between a pair of T-shaped stiffeners coupled to both longitudinal ends of the U-shaped body; And a longitudinal stiffener formed on an upper portion or a lower portion of the cavity-holding member to connect the cavity-holding members to the U-shaped body in one or more rows in the longitudinal direction of the U-shaped body. (b) installing a column having a double T-shaped bracket at regular intervals; (c) placing both ends of the U-shaped beam between the column and the column on the receiving plate of the double T-shaped bracket so that the upper flange and the upper flange of the U-shaped beam are positioned at the same height; (d) bolting joining the column and the U-shaped beam with a joint plate; (e) mounting a deck plate on the upper plate of the U-shaped beam and assembling a reinforcing bar on the upper portion; (f) forming a bottom plate by pouring concrete on the inside of the U-shaped beam and on the top of the deck plate. The semi-slim frame construction using a column having a double T- Method.

In addition, in the step (a), the column has a double-T-shaped junction structure in the horizontal direction outside the baffle plate of the double-T-shaped bracket at the height corresponding to the top plate of the U- And to provide a semi-slim frame construction method using a U-beam.

Also, in the step (a), the double T-shaped bracket of the column has a connecting portion formed to connect a certain area of an end portion of the pair of upper flanges joined to the column, And to provide a semi-slim frame construction method using a U-beam.

In addition, in the step (a), the spacing member of the U-shaped beam may be a steel rod or a plate, or a cross section of any of the c, And a U-shaped beam.

In addition, in the step (a), the U-shaped beam spacing member is formed to have an ∩-shaped section and is formed in the entire length of a section between a pair of T-shaped stiffeners coupled to both longitudinal ends of the U- And to provide a semi-slim frame construction method using a U-shaped beam and a column having a double T-shaped joint structure.

Also, in the step (a), a U-shaped reinforcing member is constituted by one or more tensile stiffeners in the longitudinal direction of the bottom plate, and a semi-slim frame construction method using a U-shaped beam and a column having a double T-

In the step (a), a cover is formed at the center of the U-shaped beam in the longitudinal direction at the same height as the upper flange of the T-shaped stiffener so as to cover the upper portion of the U- In the step (c), the both ends of the large beam between the column and the column are respectively mounted on the receiving plate of the double T-bracket, and the large To provide a semi-slim frame construction method using a column and a U-shaped beam having a double T-shaped joint structure, characterized in that both end portions of the U-shaped beam are mounted on a support plate of a double T-shaped bracket between the beam and the large beam do.

In addition, in the step (e), the reinforcing bars are joined to the upper portion of the reinforcing plate so that one end of the reinforcing plate is located above the connecting portion of the double T-bracket and the other end of the reinforcing plate is located above the reinforcing plate on one side of the U- And to provide a semi-slim frame construction method using a U-shaped beam having a T-joint structure.

In the semi-slim frame construction method using a pillar having a double T-shaped joint structure and a U-shaped beam according to the present invention, the end portion of the beam is formed of a double T- It is possible to apply the bolt fastening method by eliminating the field welding which is difficult in the quality control in the field installation, and it is possible to improve the workability and structural performance of the joint between the beam and the column and to form the U- It is possible not only to make a long span but also to install a part of the slab in the dancing of the beam to reduce the floor height, thereby greatly shortening the construction period and reducing the construction cost.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
1 is a perspective view of a column of the present invention.
2 is a perspective view of another embodiment of FIG.
3 is a cross-sectional view of the double T-bracket of FIG.
4 is a perspective view of a U-shaped beam according to the present invention.
5 is a perspective view of another embodiment of FIG.
6 is a cross-sectional view taken along line AA and BB in FIG.
7 is a cross-sectional view showing another embodiment of the U-shaped body of the present invention.
8 is a cross-sectional view of various embodiments of the cavity-holding member used in the U-shaped beam of the present invention.
FIG. 9 is a view showing a semi-slim frame construction method using columns and U-shaped beams having a double T-shaped junction structure according to the present invention in order of construction.
10 is a detailed view of another embodiment of a semi-slim frame construction method using a pillar having a double T-shaped joint structure and a U-shaped beam according to the present invention.
11 is a plan view showing another embodiment of a coupling structure of a U-shaped beam in a semi-slim frame construction method using a column having a double T-shaped joint structure and a U-shaped beam according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

The present invention relates to a method of joining a column and a beam using a column and a U-shaped beam having a double-T-type joint structure and improving the workability and structural performance of the joint between the beam and the column, And a semi-slim frame construction method.

Hereinafter, the technical structure of the present invention will be described in detail with reference to the preferred embodiments.

FIG. 1 is a perspective view of a column of the present invention, FIG. 2 is a perspective view of another embodiment of FIG. 1, and FIG. 3 is a sectional view of the double T-bracket of FIG. 4 is a perspective view of a U-shaped beam according to the present invention, FIG. 5 is a perspective view of another embodiment of FIG. 4, and FIG. 6 is a sectional view taken along line A-A and B-B of FIG.

In the method of semi-slim frame construction using a column having a double T-shaped joint structure and a U-shaped beam according to the present invention, a column 10 and a U-shaped beam 20 to which a double T- ).

Although the column 10 used in the present invention is a square steel pipe in the illustrated embodiment, various known columns such as an H-shaped steel, a round steel pipe, and a rectangular steel pipe may be used. In the present invention, The T-bracket 70 is engaged.

As shown in FIGS. 1 to 3, the double T-shaped bracket 70 has a pair of T-shaped engagement members 73 coupled to the upper portion of the support plate 72 to have a double T-shaped structure.

The double T-shaped bracket 70 is formed so as to protrude in at least one direction at a portion where the U-shaped beam 20 is coupled to a predetermined height of the column 10 and to be joined to the column 10 by various known methods such as welding do.

The support plate 72 is formed horizontally in the shape of a plate of a predetermined size and a pair of T-shaped engagement members 73 are coupled to the upper portion of the support plate 72.

The T-shaped coupling member 73 is formed to have a T-shaped cross section including an upper flange 731 formed horizontally and a bumper plate 732 formed in a direction perpendicular to the widthwise central portion of the upper flange 731, The other end of the T-type coupling member 73 is formed so as to have a length shorter than the length of the receiving plate 72 by a predetermined length so that the other end of the T- The upper end of the U-shaped beam 20 is provided at the upper portion of the protruded support plate 72.

The T-shaped coupling member 73 may be welded to the outer side end portion of the receiving plate 72 by being welded to the outer side end portion of the receiving plate 72 in a widthwise direction thereof, .

The T-shaped engagement members 73 are formed at both sides of the support plate 72 in the width direction and spaced apart from each other by a predetermined distance. At this time, the T- A work space 733 having a predetermined size is formed so as to be spaced apart from the upper flange 731 of the member 73 by a predetermined distance. The work space portion 733 provides a space for a worker to insert his / her hands during bolt joining and welding of the column 10 and the U-shaped beam 20, so that the column 10 and the U- Can be easily joined.

In addition, by forming the work space portion 733 as described above, the upper flange 731 of the T-shaped engaging member 73 is formed to reinforce the upper end surface, thereby improving the ease of installation and improving the resistance of the upper end moment So that the structural stability can be secured at the same time.

In the present invention, the cross section of the double T-shaped bracket 70 to which the column 10 is coupled is formed to have a double T-shape having the same shape as that of the end of the U-shaped beam 20 as shown in FIGS. 3 and 6, In the present invention, the deck plate is mounted on the upper portion of the U-shaped main body 21 of the U-shaped beam 20 so that a part of the slab is positioned within the dancing of the U-shaped beam 20, The column 10 is provided with a mounting plate 734 in the horizontal direction outside the bend plate 132 of the double T-type bracket 22 at a height corresponding to the top plate 213 of the U- .

7 is a cross-sectional view showing another embodiment of the U-shaped body of the present invention.

As shown in FIG. 6, the U-shaped body 21 may be formed by bending a single plate to form the U-shaped body 21. Particularly, as shown in FIG. 7 (a) So that the U-shaped body 21 can be formed by cutting the U-shaped body 21 into three pieces and welding the lower plate 211 to the lower end of the side plate 212. At this time, the lower end of the side plate 212 may be horizontally bent to form a coupling portion 218 for coupling with the lower plate 211.

As shown in Fig. 7 (b), the U-shaped main body 21 is formed by two unit members of which the U-shaped main body 21 is symmetrical so that the widthwise central portion of the bottom plate 211 is segmented and bonded, So that one U-shaped body 21 can be formed. At this time, it is also possible to vertically bend the segmented portion of the central portion of the side plate 212 to form a coupling portion 219 for coupling.

2, the double T-bracket 70 of the column 10 has a connecting portion 71 for connecting a certain area of an end of the pair of upper flanges 731 joined to the column 10, Type connecting member 73 so as to increase the bonding area at the junction with the column 10 and to improve the strength and can be formed integrally with the upper flange 731 of the T- The upper flanges 731 of the T-shaped coupling member 73 of the double T-shaped bracket 70 protruded in the other direction of the column 10 may be integrally formed.

The U-shaped beam 20 of the present invention includes a U-shaped main body 21 having a U-shaped cross section, a pair of T-shaped stiffeners 22 joined to an upper portion of a predetermined length of both longitudinal ends of the U- Lt; / RTI >

The U-shaped main body 21 includes a bottom plate 211 formed horizontally and a side plate 212 extending vertically upward at both ends of the bottom plate 211 and a top plate 212 extending outwardly from the top ends of the side plates 212, (213) so as to have a U-shaped cross-section so that the concrete can be inserted therein.

In particular, the U-shaped main body 21 may be constituted by one or more tensile reinforcement members 217 in the longitudinal direction of the lower plate 211 for tensile reinforcement.

The gap maintaining member 24 is formed to connect the upper plate 213 and the upper plate 213 of the U-shaped body 21 to prevent the U-shaped body 21 from being opened, At the same time, it can serve as a shear connection material with concrete placed on the upper part.

The gap holding member 24 is preferably installed at intervals of 200 to 400 mm between the pair of T-shaped stiffeners 22 at both ends in the longitudinal direction of the U-shaped main body 21.

8 is a cross-sectional view of various embodiments of the cavity-holding member used in the U-shaped beam of the present invention.

The gap holding member 24 may be formed by joining well-known various shapes of steel materials to connect the upper plate 213 and the upper plate 213 by a known method such as welding. Particularly, A steel rod or a plate of a predetermined size as shown in Fig. 8A (b), or a cross section of any one of the b, c and Z sections as shown in Figs. 8A, 8C, 8D and 8E As shown in Fig. 8A (f), it is also possible to use a hat-shaped member having a ∩ section formed by bending a plate.

In particular, the gap holding member 24 is not formed at regular intervals as described above, but may be formed as a pair of T (not shown) formed to have a ∩ shaped cross section and to be coupled to both longitudinal ends of the U- Type stiffener 22. The spacing member 24 may be formed with a plurality of through-holes 241 formed therein.

In the present invention, more than one row of longitudinal stiffeners 25 is provided so as to connect and reinforce spacing members 24 formed at regular intervals on the upper side of the U-shaped main body 21 in the longitudinal direction of the U- .

At this time, the longitudinal stiffener 25 is coupled to one of the reinforcing bars, the steel bars, the round bar, and the flat bar by welding or the like at the upper or lower portion of the gap retaining member 214.

A pair of T-shaped stiffeners 22 are formed in the respective sections of the U-shaped main body 21 in the longitudinal direction at both ends in the longitudinal direction. Each of the pair of T-shaped stiffeners 22 includes a vertically formed web 221, And an upper flange 222 formed horizontally at the upper end of the web 221 and formed to have the same bonding structure as the T-shaped coupling member 73 of the double T-bracket 70.

The upper flange 222 of the T-shaped stiffener 22 forms the height of the web 221 so that the upper flange 222 of the T-shaped stiffener 22 is formed at the same height as the upper flange 731 of the bracket 70, The upper flange 731 is formed to have the same width as that of the upper flange 731 to facilitate the joining.

The T-shaped stiffener 22 is formed on the upper plate 213 of the U-shaped body 21 so as to coincide with the welding side plate 212 so that the lower ends of the webs 221 are engaged with each other.

At this time, a pair of T-shaped stiffeners 22 are formed in a pair of T-shaped stiffeners 22, as shown in Figs. 4 and 5, in a section corresponding to a pair of T-shaped engagement members 73 of the bracket 70, A space 223 spaced a certain distance between the upper flange 222 and the upper flange 222 is formed.

Therefore, in the present invention, a pair of T-shaped stiffeners 22 are connected by connecting the reinforcing plate 23 between the upper flange 222 of the pair of T-shaped stiffeners 22 and the upper flange 222 .

FIG. 9 is a view showing a semi-slim frame construction method using columns and U-shaped beams having a double T-shaped junction structure according to the present invention in order of construction.

Then, as shown in FIG. 9A, the pillars 10 to which the double T-brackets 70 are coupled are installed at regular intervals (b).

Thereafter, as shown in FIG. 9B, the U-shaped beam 20 is placed between the column 10 and the column 10 (c).

The end of the beam 20 is mounted on the upper portion of the receiving plate 72 of the double T-shaped bracket 70 and the upper flange 731 of the double T- And the upper flange 222 of the U-shaped beam 20 are positioned at the same height.

Then, the double T-bracket 70 of the column 10 and the U-shaped beam 20 are attached to the joint plate 30 and bolted together (d).

The double plate T of the double T-shaped bracket 70 and the side plate 212 and the web 221 of the U-shaped beam 20 are bolted to the joint plate 30 so that the double T- The upper flange 731 of the U-shaped beam 20 and the upper flange 222 of the U-shaped beam 20 are bolted to the joint plate 30 so as to be welded when necessary.

9 (c), the deck plate 40 is mounted on the upper plate 213 of the U-shaped beam 20, and the reinforcing bar 50 is assembled to the upper portion of the U-shaped beam 20 (e).

The deck plate 40 is mounted on the mounting plate 734 of the double T-shaped bracket 70 coupled to the top plate 213 of the U-shaped beam 20 and the column 10, The reinforcing bars 50 are arranged at the upper portion of the frame.

10 is a detailed view of another embodiment of a semi-slim frame construction method using a pillar having a double T-shaped joint structure and a U-shaped beam according to the present invention.

Particularly, as shown in FIG. 10, it is possible to arrange the reinforcing bars 80 of the momentum section to increase the strength and stiffness of the U-shaped beam 20 in the moment section.

The mandrel reinforcement 80 is positioned at one end of the double T-bracket 70 and at the other end of the U-shaped beam 20 so as to be coupled to the momentum section.

The mandrel reinforcement 80 may be made of reinforcing steel, or may be made of steel bars, bars, flat bars, steel plates, or the like.

Finally, as shown in FIG. 9D, the bottom plate 60 is formed by placing concrete inside the U-shaped beam 20 and the deck plate 40 (FIG.

11 is a plan view showing another embodiment of a coupling structure of a U-shaped beam in a semi-slim frame construction method using a column having a double T-shaped joint structure and a U-shaped beam according to the present invention.

As shown in FIG. 11, in the step (a), when the U-shaped beam 20 is manufactured, a large beam (not shown) is attached to the double T-shaped bracket 70 in one direction or both directions at the longitudinal center portion of the U- 20a of the double brackets 70 are mounted on the supporting plate 72 of the double T-bracket 70 in such a manner that both ends of the large beam 20a between the column 10 and the column 10 are respectively mounted on the supporting plate 72 of the double- And both end portions of the U-shaped beam 20 can be respectively fixed to the receiving plates 72 of the double-T-shaped bracket 70 between the large beam 20a and the large beam 20a.

The large beam 20a is formed at the same height as the upper flange 222 of the T-shaped stiffener 22 so as to cover the upper portion of the U-shaped body 21 having a predetermined length at the center in the longitudinal direction in the U- And a double T-bracket 70 is coupled to one side or both sides of the lid 27, thereby increasing the rigidity of the coupling portion.

The lid 27 may be provided with a face plate 271, and a separate shear connection member (not shown) may be formed.

The semi-slim frame construction method using the pillar and U-beam with the double-T-junction structure of the present invention as described above has a structure in which the ends of the beam are formed of a double T- It is possible to apply the bolt fastening method by eliminating the field welding which is difficult to control quality in the field installation with the column, and it is possible to improve the workability and structural performance of the joint between the beam and the column and to form the U- It is possible not only to have a long span but also to place a part of the slab in the dancing of the beam to reduce the height of the beam so that the construction period can be greatly shortened and the construction cost can be reduced. .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10: Columns
20: U-shaped beam
21: U-shaped body
217: tensile stiffener
22: T-shaped stiffener
221: web
222: upper flange
23: reinforcing plate
24:
25: longitudinal stiffener
30: joint plate
40: Deck plate
50: Rebar
60: bottom plate
70: Double T-type bracket
71: Connection
72:
73: T-shaped coupling member
80: Bonded reinforcement

Claims (8)

(a) a column 10 having a predetermined length,
A receiving plate (72) formed in a horizontal direction; Shaped cross section formed by an upper flange 731 formed horizontally at a length shorter than the length of the support plate 72 by a certain length and a bumper plate 732 formed in a direction perpendicular to the widthwise central portion of the upper flange 731, Shaped engagement members 73 formed at both sides in the width direction of the support plate 72 and spaced apart from each other by a predetermined distance so as to form a work space 733 between the upper flange 731 and the upper flange 731, A double T-shaped bracket 70 which is coupled to the column 10 at a predetermined height in one or more directions,
A side plate 212 extending vertically upward at both ends of the bottom plate 211 and a bottom plate 211 formed horizontally and a top plate 213 extending in the outward direction from the top of the side plate 212, A main body 21; Shaped main body 21 and a top flange 222 formed horizontally at the upper end of the web 221. The U-shaped main body 21 has a U- A pair of T-shaped stiffeners 22 to which the lower ends of the webs 221 are coupled so as to coincide with the side plates 212 on the upper side of the plate 213; A reinforcing plate 23 coupled between the upper flange 222 and the upper flange 222 of the pair of T-shaped stiffeners 22; A gap is formed between the upper plate 213 and the upper plate 213 of the U-shaped body 21 in a section between a pair of T-shaped stiffeners 22 coupled to both longitudinal ends of the U- Ash 24; A U-shaped beam 20 made up of a longitudinal stiffener 25 formed at the upper portion or the lower portion of the gap holding member 24 so as to connect the gap holding members 24 in one or more rows in the longitudinal direction of the U- );
(b) constructing the columns 10 to which the double T-brackets 70 are coupled at predetermined intervals;
(c) Both end portions of the U-shaped beam 20 are placed between the column 10 and the column 10 on the receiving plate 72 of the double T-type bracket 70 to form the upper flange 731 and the U- 20) are positioned at the same height;
(d) bolting joining the column 10 and the U-shaped beam 20 to the joint plate 30;
(e) mounting a deck plate (40) on an upper plate (213) of the U-shaped beam (20) and assembling a reinforcing bar (50) on the upper plate (213);
(f) forming a bottom plate (60) by placing concrete on the inside of the U-shaped beam (20) and on the top of the deck plate (40). And semi - slim frame construction method using U - beam. The method according to claim 1,
In step (a)
The column 10 is characterized in that a mounting plate 734 is formed in the horizontal direction outside the bell plate 132 of the double T-bracket 22 at a height corresponding to the top plate 213 of the U- A Method of Semi - slim Frame Construction Using Column and U - Beam with Double T - Type Joint Structure. The method according to claim 1,
In step (a)
The double T-shaped bracket 70 of the column 10 has a connecting portion 71 formed to connect a certain area of an end portion joined to the column 10 of the pair of adjacent upper flanges 731. [ A Method of Semi - slim Frame Construction Using Column and U - Shaped Joint. The method according to claim 1,
In step (a)
The gap holding member 24 of the U-shaped beam 20 is formed of a steel rod or a plate, or a cross section of any of the c, ∩, and Z cross sections, and is formed at regular intervals. A Method of Semi - slim Frame Construction Using Column and U - Beam. The method according to claim 1,
In step (a)
The gap holding member 24 of the U-shaped beam 20 is formed to have an ∩-shaped cross section and is formed in the entire length of a section between a pair of T-shaped stiffeners 22 coupled to both longitudinal ends of the U- And a semi-slim frame construction method using a U-shaped beam and a column having a double T-shaped joint structure. The method according to claim 1,
In step (a)
Wherein the U-shaped beam (20) comprises at least one tensile reinforcement (217) in the longitudinal direction of the lower plate (211). The method according to claim 1,
In step (a)
Shaped U-shaped main body 21 at the center in the longitudinal direction in the U-shaped beam 20
A cover 27 is formed on the upper surface of the U-shaped beam 20 at the same height as the upper flange 222 of the T-shaped stiffener 22. A double T- A large beam 20a to which the rod 70 is coupled is additionally manufactured,
In the step (c)
Both end portions of the large beam 20a are placed between the column 10 and the column 10 on the receiving plate 72 of the double T-type bracket 70 and the large beam 20a and the large beam 20a And both end portions of the U-shaped beam (20) are mounted on the receiving plate (72) of the double T-shaped bracket (70). The semi-slim frame construction method using the U- . The method according to claim 1,
In the step (e)
One end of the U-shaped beam 20 is positioned above the connecting portion 71 of the double T-shaped bracket 70 and the other end is positioned above the reinforcing plate 23 on one side of the U- And a U-shaped beam having a double T-shaped joint structure.

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