KR101336909B1 - Steel frame structure and this construction technique - Google Patents

Abstract

The purpose of the present invention is to provide a steel frame structure having structural reinforcement based on the size of moment and a method for manufacturing and constructing the same to enable efficient use for a steel frame structure by installing reinforcement on the end of a column having a large member force, assembling multiple beams to a space between the columns, installing a shape steel material for both ends, and reinforcing only the end of the beams and the column; to provide users ease of use for the steel frame structure by securing the internal space of the steel frame structure and increasing the floor height of the steel frame structure.

Description

Steel frame with structural reinforcement according to the moment generating size and its construction and construction method {Steel frame structure and this construction technique}

The present invention relates to a steel structure with a structural reinforcement according to the moment generating size, and to a method of manufacturing and constructing the same (referred to as "TONIC method"), in particular the reinforcement and to the end of the large member strength of the beam and column of the conventional steel structure The present invention relates to a steel structure with structural reinforcement and a method of manufacturing and constructing the steel reinforcement according to the moment generating size of reinforcing steel structure by installing both end section steel materials.

In general, steel structures used for self-propelled parking lots or other constructions, as shown in FIG. 1, are welded and installed between a pillar 100 made of a shaped steel and the pillar 100, and a beam 200 made of a shaped steel. .

Here, the beam 200 is mainly used for the shape of the bar, the bar is not a problem when the length is short, but in the case of a long span, the central part of the beam of the beam sag downwards phenomenon Is generated.

In order to prevent the deflection of such a steel member, in the past, a plurality of pillars were reinforced by standing under the steel member which may cause deflection.

However, as described above, by installing a column under the beam to prevent sagging of the steel, the internal space of the structure is narrowed, there is a problem in use due to the installation of the column.

In other words, when the steel structure is used as a parking lot, there is a problem that it acts as an obstacle and inconvenience for driving and parking the vehicle due to the installation of a deflection prevention pillar in the middle.

In addition, when used for the purpose of the general building, there is a problem that the partition of the work and commercial space due to the installation of the column is not free, and the space utilization is not good, causing inconvenience.

Thus, the present invention was devised to solve the problems described above, by installing a reinforcing material at the end of the large member force of the pillar, and by assembling a plurality of beams installed between the pillars and installing both ends of the section steel, By reinforcing only the ends of pillars and beams with large member force, efficient use of steel members is possible, and the structure according to the moment generation size to secure the internal space of steel structures and increase the height of steel structures to make the use of steel structures convenient Its purpose is to provide a steel structure with reinforcement and its manufacturing and construction method.

Steel frame structure is attached to the structural reinforcing material according to the moment generating size according to the present invention for achieving the above object is a pair of pillars vertically placed at a predetermined interval, the vertical steel member consisting of a flange and a web; It is connected horizontally by welding or bolting between the pair of pillars, and composed of a beam made of a shape steel material, the shape steel of the column is composed of at least three or more shape steel materials, both ends are both end-shaped high-profile steel; Consists of a central section steel that is welded between the both ends of the section steel, the both ends of the section is cut to a predetermined cross-sectional shape is formed a cutout, characterized in that the reinforcement angle is attached to the cutout.

In addition, the method for producing a steel frame structure is attached to the structural reinforcement according to the moment generating size according to the present invention for achieving the above object comprises the steps of manufacturing a column using a shaped steel material consisting of a flange and a web; Comprising the step of manufacturing a beam consisting of a flange and a web consisting of a section steel, the pillar of the column is composed of at least three or more members, both ends of the column of the pillar constitute a high end of both ends of the steel, It is composed of a central section steel that is welded between the both ends of the section steel, cut one side of the both ends of the column to a predetermined cross-sectional shape to form a cutout, characterized in that the reinforcing angle is attached to the cutout. .

And, in order to achieve the above object, the method of constructing a steel structure with a structural reinforcing material according to the moment generating size according to the present invention is a pair of pillars by vertically placing the shape steel material consisting of a flange and a web at predetermined intervals. Installing it; Comprising a step of horizontally connecting the beam made of the steel between the pair of pillars by welding or bolting, the section of the pillar is composed of at least three or more of the section, the both ends of the section of the column of high column height Consists of both ends of the section steel, the center section of the steel is welded between the both ends of the section, the cutting of one side of the two ends of the column to a predetermined cross-sectional shape to form a cutout, the reinforcement angle to the cutout It is characterized in that attaching.

As described above, the steel structure with a structural reinforcement according to the moment generating size according to the present invention and its manufacturing and construction method has the following effects.

First, the present invention has the advantage that it is possible to efficiently use the steel member by separately reinforcing only the end portion of the member force is large end of the column and beam.

Second, the present invention has the advantage that the economy is improved by reducing the amount of steel member used in the beams and columns.

Third, the present invention can reduce the construction cost by the production cost, transportation cost, installation cost, fireproof coating and coating amount reduction, air shortening, etc. by reducing the steel frame member.

Fourth, the present invention has the advantage that can be smoothly utilized the internal space of the steel structure by not having a separate member for preventing sag between pillars.

Fifth, the present invention has the advantage that by lowering the height of the central section steel to reduce its own weight, not only the sagging of the central section steel material but also the height of the floor.

Sixth, the present invention has an advantage that can be used even in the case of seismic force resistance system requiring seismic performance (plastic deformation capacity of a certain level or more) because the use of the steel only on both ends of the column and beam.

Seventh, the present invention is constructed by using a pure steel frame member (shaped steel), there is an advantage that can realize a green construction by reducing the carbon dioxide emissions.

Eighth, the composite form coupled to the existing reinforced concrete structure or precast concrete structure, etc., there is a problem of heavy lifting, etc. The present invention can reduce the volume by the pure steel member (shaped steel), problems such as lifting It is possible to construct an optimal structural system considering economics, environment, constructability, safety, and maintenance.

1 is a perspective view showing a conventional steel structure,
Figure 2 is a front view showing a conventional steel structure,
Figure 3 is a perspective view showing a steel structure with a structural reinforcement according to the moment generating size according to the present invention,
Figure 4 is a front view showing a steel structure with a structural reinforcement according to the moment generating size according to the present invention,
5 is a plan view showing a steel structure with a structural reinforcement according to the moment generating size according to the present invention,
Figure 6 is a perspective view showing a first embodiment of the pillar of the steel structure with a structural reinforcement according to the moment generating size according to the present invention,
Figure 7 is a perspective view showing a second embodiment of the pillar of the steel structure with a structural reinforcement according to the moment generating size according to the present invention,
Figure 8 is a perspective view showing a third embodiment of the pillar of the steel structure with a structural reinforcement according to the moment generating size according to the present invention,
9 is a plan view showing the installation state of FIG.
10 is a perspective view showing a fourth embodiment of the pillar of the steel structure having a structural reinforcement according to the moment generating size according to the present invention,
11 is an exploded perspective view illustrating an exploded view of FIG. 10;
12 is a front view showing a first embodiment of a beam of a steel structure with a structural reinforcement according to the moment generating size according to the present invention,
13 is a front view showing a second embodiment of a beam of a steel structure with a structural reinforcement according to the moment generating size according to the present invention,
14 is a front view showing a third embodiment of the beam of the steel structure with a structural reinforcement according to the moment generating size according to the present invention,
15 is a front view showing a fourth embodiment of the beam of the steel structure with a structural reinforcement according to the moment generating size according to the present invention,
16 is an exploded perspective view illustrating an exploded view of FIG. 15;
17 is a moment diagram showing the moment of the steel structure is attached to the structural reinforcement according to the moment generation size according to the present invention,
18 is a front view showing a fifth embodiment of the beam of the steel structure is attached to the structural reinforcement according to the moment generating size according to the present invention.

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

3 is a perspective view showing a steel structure with a structural reinforcement according to the moment generating size according to the present invention, Figure 4 is a front view showing a steel structure with a structural reinforcement according to the moment generating size according to the present invention, 5 is a plan view showing a steel structure with a structural reinforcement according to the moment generating size according to the present invention.

As shown in these drawings, the steel frame structure is attached to the structural reinforcement according to the moment generating size according to the present invention is a pair of pillars are vertically vertically spaced, the steel member 110 consisting of a flange and a web 100; It is connected horizontally by welding or bolting between the pair of pillars 100, and consists of a beam 200 made of a shape steel (210).

That is, the steel structure (S) is attached to the structural reinforcement according to the moment generating size according to the present invention is a structure consisting of the column 100 and the beam 200 is organically coupled.

Here, the pillar 100 is a structure in which the section steel 110 consisting of a flange and a web is vertically placed at predetermined intervals, and the section steel 110 is H-shaped steel, I-shaped steel, C-shaped steel, box-shaped steel. Etc. are used.

In addition, as shown in FIG. 6, the auxiliary steel 300 is welded to the flange of the shaped steel 110 of the pillar 100.

Then, as shown in FIG. 7, the reinforcing plate 310 is installed between the flanges of the shaped steel 110 of the pillar 100.

In addition, as shown in FIGS. 8 and 9, the web of the shaped steel 110 of the pillar 100 is welded with a “c” channel 320, and a reinforcement 330 is provided in the channel 320. Inserted and installed, the reinforcing material 330 is composed of a horizontal steel plate 332 having a predetermined length, and a vertical steel plate 334 is welded to the horizontal steel plate 332 in the center.

That is, as shown in FIGS. 8 and 9, the “c” channel 320 is welded to the web of the shaped steel 110 which is inside the upper and lower ends of the shaped steel 110 of the pillar 100. In the installation state, the horizontal steel plate 332 and the reinforcement 330 composed of the vertical steel plate 334 are inserted into the channel 320 and welded, while the horizontal steel plate 332 is inserted into the channel 320. The vertical steel plate 334 is installed by welding to the inside of the flange of the column 100.

In particular, in the state where the horizontal steel plate 332 of the reinforcing material 330 is inserted into the channel 320, the vertical steel plate 334 is installed by welding to the inside of the flange of the shaped steel 110, the welding is installed outside the flange Compared to that, there is an effect of expanding the internal space of the steel structure (S).

Here, the reinforcing material 330 is put out that the general cut half of the H-shaped steel can also be used.

In addition, as shown in FIGS. 10 and 11, both ends of the section steel 112 are cut to one side of the section steel 110 in a predetermined cross-sectional shape, and the cutout 112a is formed in the section steel 110. It is formed, the reinforcement angle 400 is attached to the cutout (112a), the center portion of the steel member 114 to the reinforcement angle 400 is installed structure.

Such a shape steel 110 is provided at both ends by using both ends of the section steel 112, between the two ends of the section steel 112 is installed by welding the central section steel 114, the end of the both ends of the section steel (112) After cutting to a certain shape to form a cutout 112a, and weld and install the L-shaped reinforcement angle 400 to the cutout 112a, the central section steel 114 on the bottom plate of the reinforcement angle 400 When the flange of the welding is installed, both ends of the section steel 112 and the center section 114 is tightly coupled, it is possible to ensure the durability of both ends of the section steel 112 and the center section (114).

Here, in the case of the pillar of the steel structure, as shown in Figure 11, the l / 2 point and the maximum static moment of the distance from the both ends to the center of the steel member 110, the maximum parent moment (-Mmax) occurs Both ends (-Mmax to L / 2, + Mmax to L / 2), which are l / 2 points from the both ends to the center where Mmax occurs, have a cross-sectional shape of the column 100 such as H┫, 田, 日, etc. In various configurations, when joining the steel frame material of the U-shape, for welding, the channel 320 is welded to the shape steel 110, and the U-shaped reinforcement 330 to the channel 320. After welding is integrated, the center portion (l / 2 to M = 0 to l / 2) of the column is configured in a general H beam shape, and the reinforcing member is integrally assembled by the joining means to the point of l / 2. .

On the other hand, the beam 200 is composed of at least three or more beam members 210, as shown in Figures 12 to 16 and 18, the beam member 210 of the beam 200 is both columns ( It is composed of the center section steel 216 by welding or bolting between the both ends of the section steel (212) and the both ends of the section steel (212) installed by welding or bolting, the center section steel (216) is formed at both ends ( Compared with 212), the height is low.

That is, the beam 200 of the steel structure (S) attached to the structural reinforcement according to the moment generating size according to the present invention is composed of a section steel 210, both ends of the section steel (212) and the center section of the steel (216) 3 Consists of dogs.

In particular, since both ends of the beam member 212, which is both ends of the beam 200 is greater than the member force generated compared to the central portion of the steel 216, both ends are used as a higher height than the central portion of the steel 216, both end member force To overcome.

Here, as shown in Figure 12, both ends of the beam member 212, the stepped jaw 213 having a predetermined size is formed on one side, the central section steel 216 on the stepped jaw (213) Is a structure installed by welding or bolting.

In addition, as shown in Figure 13, both ends of the beam member 212 of the beam 200, the inclined surface 214 is formed so that the bottom surface is reduced in height upward from one side end to the other end, the both end section steels The central section steel 216 is provided on one side of the 212 by welding or bolting.

In addition, both ends of the beam member 212 of the beam 200, as shown in Figure 14, the central portion of the steel member 216 is installed on one side of the both ends of the steel member 212 by welding or bolting.

In addition, the beam 200 is composed of both ends of the section steel 212 and the center section of the steel 216, as shown in Figure 15, 16, 18, one side of the two ends of the steel (212) predetermined A cutout portion 212a is formed by cutting into a cross-sectional shape of the cutout portion 212a, and a reinforcement angle 400 is attached to the cutout portion 212a, and a center portion steel material 216 is welded to the reinforcement angle 400.

Both ends of the section steel 210 such as using both ends of the section steel 212, between the two ends of the section steel (212) is installed by welding the central section of the steel 216, the end of the two ends of the steel (212) Cut to a predetermined shape to form a cutout (212a), and installed by welding the L-shaped reinforcement angle 400 to the cutout (212a), the center section steel 216 on the bottom plate of the reinforcement angle 400 When the flange of the welding is installed, the both ends of the section steel 212 and the center section of the steel member 216 is tightly coupled, thereby ensuring the durability of both ends of the section steel material 212 and the center section steel (216).

Here, in the case of the steel structure, as shown in Figure 17, the center portion of the section (M = 0 ~ + Mmax ~ M = 0) where the positive moment (+ M) occurs is composed of the H beam, the parent moment The basic configuration is that structural reinforcing materials are attached to both ends of the beams (-Mmax to M = 0, M = 0 to -Mmax) where (-M) occurs and integrated by joining means.

Based on the technical details, both ends of the beam, which is the section in which the parent moment (-M) occurs by varying the size of the beam member, are larger than the central bore in terms of structural reinforcement for the generated stress. The beam is constructed so that both ends of the beam are integrated by the joining means at a point where M = 0, so that a long interval is possible.

Steel structure (S) is attached to the structural reinforcement according to the moment generating size according to the present invention made of the configuration as described above at the both ends when the structural steel structure (S) column 100 and beam 200 member design Since the member force generated is greater than the member force generated in the center portion, the member steel is installed in the portion where the member force at both ends is large, thereby overcoming the member force at both ends.

That is, as shown in FIGS. 6 to 8, the shaped steel material 110 used as the pillar 100 to solve both end member forces generated in the design of the pillar 100, the auxiliary steel 300, the reinforcement plate 310 and the reinforcement 330 is installed.

In addition, the shape steel 210 used as the beam 200 to solve both end member forces generated in the design of the beam 200 has a large member force in the shape as shown in Figures 12 to 16 and 18. It is installed by connecting the section steel 212 and the central section steel 216 having a small member force.

On the other hand, in order to solve the both end member force generated in the design of the beam 200, the beam member 210 is used as the beam 200 is a shape as shown in Fig. It is installed by connecting the member steel 216 having a small member force.

Hereinafter, the production of the steel structure with a structural reinforcement according to the moment generating size according to the present invention having the configuration as described above.

As shown in Figures 3 to 5, the method of manufacturing a steel structure with a structural reinforcement according to the moment generating size according to the present invention is to produce a column 100 using a shaped steel material 110 consisting of a flange and a web step; Comprising a step of manufacturing a beam 200 made of a shaped steel 210 consisting of a flange and a web.

Here, the auxiliary steel 300 is welded to the flange of the section steel 110 of the pillar 100, or welded to the reinforcement plate 310 between the flanges or welded to the channel 320, the web is installed, The reinforcement 330 is inserted into and installed at the 320, and the reinforcement 330 is composed of a horizontal steel plate 332 having a predetermined length and a vertical steel plate 334 in which the horizontal steel plate 332 is welded to the center. , The reinforcement 330 is manufactured by using a half cut H-shaped steel based on the web.

In addition, the shape steel material 110 of the pillar 100 is composed of at least three or more of the shape steel material, both ends of the shape steel material 110 of the column 100 constitutes both ends of the section steel material 112 with a high height. The center portion of the steel section 114 is welded between the two ends of the section steel (112).

Then, one side of both ends of the column member 112 of the pillar 100 is cut into a predetermined cross-sectional shape to form a cutout portion 112a, and a reinforcement angle 400 is attached to the cutout portion 112a. The center section steel 114 is welded to the reinforcement angle 400.

Particularly, any one of both ends of the section steel 112, the auxiliary section steel 300, the reinforcing plate 310, and the reinforcing material 330 is installed at the l / 4 and 3l / 4 portions of the total height of the section steel 110.

On the other hand, the beam 200 is composed of at least three or more members, the beam member 210 of the beam 200 constitutes both ends of the beam member 212 is installed by welding or bolting on both pillars (100). And, it is composed of the center section steel 216 by welding or bolting between the both ends of the section steel 212, the center section of the steel 216 is formed with a lower height than the two ends of the steel (212).

In addition, both ends of the beam member 200 of the beam member 212 forms a stepped jaw 213 having a predetermined size on one side, and the center section steel 216 is installed or welded to the stepped jaw 213 or Both ends of the beam member 200 has a sloped surface 214 so that the bottom surface is reduced in height from one side end to the other end, the central section steel (216) on one side of the both ends of the steel member (212) ) By welding or bolting or by cutting one side of both ends of the beam member 212 of the beam 200 into a predetermined cross-sectional shape to form a cutout 212a, and a reinforcement angle (2) on the cutout 212a. 400 is attached, and the center section steel 216 is welded to the reinforcement angle 400.

Hereinafter, the construction of the steel structure with a structural reinforcement according to the moment generating size according to the present invention made of the configuration as described above.

As shown in Figures 3 to 5, the steel structure construction method is attached to the structural reinforcement according to the moment generating size according to the present invention by vertically placing the section steel 110 consisting of a flange and a web at regular intervals , Constructing a pair of pillars 100; It consists of a step of constructing the beam 200 by horizontally connecting the section steel 210 by welding or bolting between the pair of pillars (100).

Here, as shown in FIG. 6, the auxiliary steel 300 is welded to the flange of the shaped steel 110 of the pillar 100.

Then, as shown in FIG. 7 between the flanges of the shaped steel 110 of the pillar 100, the reinforcing plate 310 is installed by welding.

In addition, as shown in FIGS. 8 and 9, the channel 320 is welded to the web of the shaped steel 110 of the pillar 100, and a reinforcement 330 is inserted into the channel 320. .

Here, the reinforcing material 330 is composed of a horizontal steel plate 332 having a predetermined length, and a vertical steel plate 334 is welded to the center of the horizontal steel plate 332.

In addition, as shown in FIGS. 10 and 11, both ends of the section steel 112 of the section steel 110 are cut into a predetermined cross-sectional shape to form a cutout 112a in the section steel 110. The reinforcing angle 400 is attached to the cutout 112a, and the center portion steel 114 is welded to the reinforcing angle 400.

Such a shape steel 110 is provided at both ends by using both ends of the section steel 112, between the two ends of the section steel 112 is installed by welding the central section steel 114, the end of the both ends of the section steel (112) After cutting to a certain shape to form a cutout 112a, and weld and install the L-shaped reinforcement angle 400 to the cutout 112a, the central section steel 114 on the bottom plate of the reinforcement angle 400 When the flange of the welding is installed, both ends of the section steel 112 and the center section 114 is tightly coupled, it is possible to ensure the durability of both ends of the section steel 112 and the center section (114).

On the other hand, the beam 200 is composed of at least three or more shaped steel, as shown in Figures 12 to 16 and 18.

Here, the beam member 210 of the beam 200, as shown in Figures 12 to 16 and 18, both ends of the steel member 212 and the both ends of the steel member 212 is installed by welding or bolting to both pillars. The center portion of the steel sheet 216 by welding or bolting between the), the center portion of the steel sheet 216 is formed to have a lower height than the two ends of the steel sheet (212).

In particular, both ends of the beam member 212 of the beam 200, as shown in Figure 12, forms a stepped jaw 213 having a constant size on one side, the central section steel 216 on the stepped jaw (213) Is installed by welding or bolting.

In addition, both ends of the beam member 212 of the beam 200, as shown in Figure 13, the bottom surface forms an inclined surface 214 so that the height decreases upward from one end to the other end, the both ends of the steel member The central section steel 216 is installed on one side of the 212 by welding or bolting.

In addition, both ends of the beam member 212 of the beam 200, as shown in Figure 14, the central portion of the steel member 216 is installed on one side of the both ends of the steel member 212 by welding or bolting.

In addition, by cutting one side of both ends of the beam member 212 of the beam 200 into a predetermined cross-sectional shape to form a cutout (212a), attaching a reinforcement angle 400 to the cutout (212a), The center section steel 216 is welded to the reinforcement angle 400.

Both ends of the section steel 210 uses both ends of the section steel 212, between the ends of the section steel 212 is installed by welding a central section of the steel 216, the end of the two ends of the steel (212) Cut to a predetermined shape to form a cutout (212a), and installed by welding the L-shaped reinforcement angle 400 to the cutout (212a), the center section steel 216 on the bottom plate of the reinforcement angle 400 By welding the flanges of the two end members 212 and the central section member 216 is tightly coupled, the durability of the both ends section member 212 and the center section member 216 can be secured.

Steel structure construction method is attached to the structural reinforcement according to the moment generating size according to the present invention consisting of the steps as described above in the center portion of the member force generated at the end of the column and beam member design of the steel structure (S) by the structural analysis Since it is larger than the member force generated, there is an effect of installing the shaped steel by the end member force to overcome the end member force.

On the other hand, the steel structure with the structural reinforcement according to the moment generating size according to the present invention will be described in comparison with the conventional steel structure.

* Comparison of Member Section Properties-Steel Structure Beams * division Conventional Steel Structure Beams
Present invention steel structure beam Remarks
(Analysis of cross section characteristic increase)



Of steel structure beam SGI
section
characteristic
compare



Shear plane

H-700 × 300 × 13 × 24

End
H-582 × 300
× 11 × 17
+ CT-350 × 300 × 12 × 17

Central part
H-582 × 300
× 11 × 17

 Increased resistance to bending due to increased cross-sectional properties of reinforcement beams at both ends Cross section second moment
○ Ix = 201,000 cm ⁴ Cross section second moment
○ Ix = 304,141 cm ⁴
Reinforcement at both ends
51% increase in section secondary moment Section coefficient
○ Zx = 5,742 cm 3
Section coefficient
○ Zx = 6,258 cm 3
Reinforcement at both ends
9% increase in section modulus Flexural rigidity
○ E × Ix = 20500kN / ㎠ × 201,000cm ⁴
= 4.12 × 10 ⁹ kN㎠ Flexural rigidity
○ E × Ix = 20500kN / ㎠ × 304,141cm ⁴ = 6.23 × 10 ⁹ kN㎠ Reinforcement at both ends
51% increase in flexural rigidity (resistance to bending) * Compared to the conventional steel structure, the cross-sectional characteristics of the steel structure of the present invention is increased, the member can be reduced.

As described in the above table, the steel structure with the structural reinforcement according to the moment generating size according to the present invention is increased resistance to bending due to the increase in the cross-sectional characteristics of both ends of the beam compared to the conventional steel structure, both ends The cross section secondary moment of the beam is increased by 51%, and the cross-sectional coefficient of the beam at both ends is also increased by 9%, resulting in a 51% increase in flexural stiffness (resistance to warpage), which saves steel members.

* Comparison of Member Section Properties-Steel Structure Columns * division Conventional Steel Structure Steel structure of the present invention Remarks
(Analysis of cross section characteristic increase) Upper reinforcement Upper and lower part reinforcement Top, bottom
Reinforcement











iron frame
Structure pillar
Of MC1
Cross section
compare

Shear plane
H-414 × 405 × 18 × 28 End
: H-400 × 400 × 13 × 21 + CT-250 × 400 ~ 150 × 400
Central part
: H-400 × 400 × 13 × 21 End
H-400 × 400 × 13 × 21 + PL
10-15T (1.0M)

Reinforcement center part
: H-400 × 400 × 13 × 21 End
H-400 × 400 × 13 × 21 + CT-200 × 400 × 13
× 21

Reinforcement center part
: H-400 × 400 × 13 × 21




Both ends
Increasing bending and axial resistance performance with increasing cross-sectional characteristics

Section 2
moment
○ Ix = 92,800 cm ⁴
○ Iy = 31,000 cm ⁴
Section 2
moment
○ Ix = 251,316cm ⁴
○ Iy = 44,827 cm ⁴ Section 2
moment
○ Ix = 76,832cm ⁴
○ Iy = 59,184 cm ⁴ Section 2
moment
○ Ix = 87,768 cm ⁴
○ Iy = 92,538 cm ⁴ Both ends
Increased weak axis of section secondary moment steel Section modulus
○ Zx = 4,483 cm 3
○ Zy = 1,530 cm 3
Section modulus
○ Zx = 7,413 cm 3
○ Zy = 2,241 cm 3 Section modulus
○ Zx = 3,842 cm 3
○ Zy = 2,959 cm3 Section modulus
○ Zx = 4,388 cm 3
○ Zy = 4,626 cm 3 Both ends
Section modulus
River shrinkage increase Stiffness (axial rigidity, flexural rigidity)
○ E × Ix = 1.90 × 10 ⁹ kN㎠
○ E × Iy = 6.35 × 10 ⁸ kN㎠
○ E × A = 6.04 × 10 ⁶ kN㎠ Stiffness (axial rigidity, flexural rigidity)
○ E × Ix = 5.15 × 10 ⁹ kN㎠
○ E × Iy = 9.18 × 10 ⁸ kN㎠
○ E × A = 8.95 × 10 ⁶ kN㎠ Stiffness (axial rigidity, flexural rigidity)
○ E × Ix = 1.57 × 10 ⁹ kN㎠
○ E × Iy = 1.21 × 10 ⁹ kN㎠
○ E × A = 6.60
× 10 ⁶ kN㎠ Stiffness (axial rigidity, flexural rigidity)
○ E × Ix = 1.80 × 10 ⁹ kN㎠
○ E × Iy = 1.89 × 10 ⁸ kN㎠
○ E × A = 8.79 × 10 ⁶ kN㎠
Both ends
Flexural rigidity
River shrinkage increase
Axial stiffness increase * Compared to the conventional steel structure, the cross-sectional characteristics of the steel structure pillars of the present invention can be increased, thereby reducing members.

As described in the above table, the steel structure with the structural reinforcement according to the moment generating size according to the present invention is increased in bending and axial resistance performance as the cross-sectional characteristics of both ends of the column compared to the conventional steel structure, The cross-section secondary moments of both ends of the columns increase in strength and weakness, and the cross-sectional coefficients of both ends of the columns also increase in strength and weakening. Consequently, both ends of the columns have increased bending stiffness (resistance to bending) and axial resistance, thereby reducing steel members. It works.

* Absence review result and quantity comparison analysis *
division

Conventional Steel Structure
Steel structure of the present invention
Remarks

Steel structure beam


SG1: H-700 × 300 × 13 × 24
SG1
End: H-582 × 300 × 11 × 17 + CT-350 × 300 × 12 × 17

Center part: H-582 × 300 × 11 × 17

Steel column

1MC1: H-414 × 405 × 18 × 28

1MC: H-400 × 400 × 13 × 21
2MC1: H-414 × 405 × 18 × 28

2MC1
Upper end: H-400 × 400 × 13 × 21 (1.0M) + CT-250 × 400 ~ 150 × 400
Lower end: H-400 × 400 × 13 × 21 (1.0M) + Web section 15T PL reinforcement
Center part: H-400 × 400 × 13 × 21

3MC1: H-300 × 300 × 10 × 15

3MC1: H-300 × 300 × 10 × 15
BOM
(Bill
Of Material)
Steel structure beam
58.58 tons (100%)
46.71 tons (80%) Conventional Steel Structure
85.36 tons (100%)
Invention
Steel structure: 70.67 tons (83%)

Steel structure
Pillar

26.78 tons
23.96 tons (89%)

As described in the above table, the steel structure with the structural reinforcement according to the moment generating size according to the present invention is reduced by 20% in the beam, 11% in the column, a total of 17% compared to the conventional steel structure Can be saved.

100: pillar 110: section steel
112: both ends of the section steel 112a: cutout
114: center section steel 200: beam
210: shaped steel 212: both ends of the shaped steel
212a: cutout 213: step
214: slope 216: central section steel
300: auxiliary steel 310: reinforcement plate
320: channel 330: reinforcement
332: horizontal steel sheet 334: vertical steel sheet
400: reinforcement angle S: steel structure

Claims (12)

A pair of pillars 100 which are vertically spaced apart from each other, and having a predetermined distance between the flanges and the web 110; Is connected horizontally by welding or bolting between the pair of pillars 100, consisting of a beam 200 made of a shaped steel 210,
The section steel 110 of the pillar 100 is composed of at least three or more of the section steel, both ends of the two-section section of the high-profile steel section 112; Consists of the central section steel 114 is welded between the both ends of the section steel (112), the both ends of the section (112) is cut on one side of the predetermined cross-sectional shape cut portion 112a is formed, the Steel structure is attached to the structural reinforcement according to the moment generating size, characterized in that the reinforcement angle 400 is attached to the cutout (112a). The method of claim 1,
The beam 200 is composed of at least three or more members, the beam member 210 of the beam 200 is both ends of the steel member (212) and the both ends of the two poles 100 are installed by welding or bolting Structural reinforcement according to the moment generating size, characterized in that the center portion of the steel section 216 by welding or bolting between the steel 212, the center portion of the steel section 216 is formed a lower height than the two ends of the steel section (212) Steel structure attached. 3. The method of claim 2,
Both ends of the beam member 200 of the beam member 212 is formed with a stepped jaw 213 having a predetermined size on one side, the central section steel 216 is installed on the stepped jaw 213 by welding or bolting, or Both ends of the beam 200, the inclined surface 214 is formed so that the bottom is reduced in height from one end to the other end of the bottom surface, the central section steel (216) on one side of the two ends of the steel (212) Steel structure with a structural reinforcement according to the moment generating size, characterized in that) is installed by welding or bolting. 3. The method of claim 2,
Both ends of the beam 200, the one end is cut to a predetermined cross-sectional shape of one side is formed a cutout (212a), characterized in that the reinforcement angle 400 is attached to the cutout (212a) Steel structure with structural reinforcement according to moment generating size. Manufacturing a pillar 100 by using the shaped steel 110 formed of a flange and a web;
It is made of a step of manufacturing the beam 200 made of a shape steel 210 made of a flange and a web,
The section steel 110 of the pillar 100 is composed of at least three or more of the section steel, both ends of the section steel 110 of the pillar 100 constitutes both ends of the section steel 112 having a high height. Consists of a central section steel 114 welded between the both ends of the section steel 112, and cuts one side of the both ends of the section steel 112 of the column 100 to a predetermined cross-sectional shape to form a cutout (112a). And a reinforcing angle 400 attached to the cutout portion 112a. The method of claim 5,
The beam 200 is composed of at least three or more members, the beam member 210 of the beam 200 constitutes both ends of the beam member 212 is installed by welding or bolting to both pillars 100, The center portion steel 216 is formed by welding or bolting between the both ends of the section steel, 212, the center portion of the steel 216 is a height generation size, characterized in that the height is formed lower than the two ends of the steel (212) Steel structure manufacturing method with a structural reinforcement according to. The method according to claim 6,
Both ends of the beams 200 of the beam member 212 forms a stepped jaw 213 having a predetermined size on one side thereof, and the center section steel 216 is installed on the stepped jaw 213 by welding or bolting, or the beam Both ends of the section steel member 212 of the (200) forms an inclined surface 214 so that the bottom is reduced in height upward from one side end to the other end, the central section steel 216 on one side of the both end section steel (212) Method of manufacturing steel structures with structural reinforcement according to the moment generating size, characterized in that the installation by welding or bolting. The method according to claim 6,
It is characterized by cutting one side of both ends of the beam member 212 of the beam 200 into a predetermined cross-sectional shape to form a cutout 212a, and attaching a reinforcement angle 400 to the cutout 212a. Method of manufacturing steel structure with structural reinforcement according to the moment generating size. Installing a pair of pillars 100 by vertically placing the shaped steel material 110 formed of a flange and a web at predetermined intervals;
Comprising a step of horizontally connecting the beam 200 made of the shape steel 210 between the pair of pillars 100 by welding or bolting,
The section steel 110 of the pillar 100 is composed of at least three or more of the section steel, both ends of the section steel 110 of the column constitutes both ends of the high section of the steel section 112, the both ends of the section steel Consists of the center portion of the steel section 114 is welded between the 112, one side of the both ends of the section steel 112 of the column 100 is cut into a predetermined cross-sectional shape to form a cutout (112a), Steel structure construction method is attached to the structural reinforcement according to the moment generating size, characterized in that for attaching the reinforcement angle 400 to the cutout (112a). 10. The method of claim 9,
The beam 200 is composed of at least three or more beams, the beams 210 of the beams 200 is composed of both ends of the beams (212) installed by welding or bolting on both pillars 100, The center portion steel 216 is formed by welding or bolting between the both ends of the section steel, 212, the center portion of the steel 216 is a height generation size, characterized in that the height is formed lower than the two ends of the steel (212) Steel structure construction method with structural reinforcement according to. The method of claim 10,
Both ends of the beams 200 of the beam member 212 forms a stepped jaw 213 having a predetermined size on one side thereof, and the center section steel 216 is installed on the stepped jaw 213 by welding or bolting, or the beam Both ends of the section steel member 212 of the (200) forms an inclined surface 214 so that the bottom is reduced in height upward from one side end to the other end, the central section steel 216 on one side of the both end section steel (212) Steel structure construction method is attached to the structural reinforcement according to the moment generating size, characterized in that the installation by welding or bolting. The method of claim 10,
It is characterized by cutting one side of both ends of the beam member 212 of the beam 200 into a predetermined cross-sectional shape to form a cutout 212a, and attaching a reinforcement angle 400 to the cutout 212a. Construction method of steel structure with structural reinforcement according to moment generating size.

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