KR101855350B1 - Assemble type complex section steel - Google Patents

Abstract

The present invention has the advantage that it is possible to assure multi-stage assemblability with respect to both directions and to assure the excellent performance of sectional performance, self-assembling property and bolt joining performance, The present invention relates to a multistage prefabricated structural steel having an assembly compatibility so that it can cope more positively with a flexible clamping position caused by a crack, An upper surface 10 provided in a shape opened to the longitudinal direction so as to allow interposition of the engaging means 1; a plurality of equally spaced fastening holes 21 on the same vertical line corresponding to the open area of the upper surface; (20) allowing the interposition of the coupling means (1), wherein both ends of the region opened in the upper surface (10) And a bending piece 11 curved inward so as to face each side adjacent to each other for the purpose of increasing the strength and the bonding force. The fastening hole 21 formed in the upper surface 20 is formed at the both ends in the longitudinal direction, And bending pieces 23 formed to be curved toward both side surfaces adjacent to each other from both ends in the longitudinal direction.

Description

{Assemble type complex section steel}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical idea of a lightweight structural steel which is used for supporting interior and exterior parts and various facility facilities. More particularly, the present invention relates to a multi- The present invention relates to a multi-stage prefabricated structural steel having excellent cross-sectional performance, self-assembling property and bolt joining performance as well as assembly compatibility so that it can more positively cope with a flexible joining position due to changes in site conditions.

Generally, the structural steel is generally used for a prefabricated structure such as a steel house, a temporary structure, and a solar photovoltaic structure. The form is a C-shaped steel which is rolled and molded with a cast steel, a section steel, an H section steel and an I- And these sections are widely used for supporting or reinforcement of buildings, civil engineering steel structures and various facilities.

Among them, casting molds are produced as a single body in a manufacturing factory, so they can not be deformed in shape, and they are not only subject to local property change and strength deterioration due to welding at the time of construction, There is a disadvantage that it is inconvenient.

In addition, the non-perforated steel of the rolled section steel has a disadvantage that it is impossible to assemble in a prefabricated structure and is heavy and inconvenient in construction. On the other hand, the prefabricated angle or C-section steel is advantageous in that it is lighter in size and easier to assemble, As a result, there is a great restriction on the use load and excessive connection parts are required, which has been a cause of deterioration in construction quality and increase in construction cost.

Utility Model No. 20-1997-0001920 "C-shaped section including a screw hole" Registered Patent No. 10-1529559 entitled "Unitary curtain wall structure combining C-type steel steel and aluminum frame"

The present invention has been made in order to more positively solve the above problems, and it is an object of the present invention to provide a multi-stage prefabricated structure which maximizes assembly compatibility by providing various fastening positions while flexibly responding to changes in site conditions, This is an attempt to solve the provision of the section steel.

Also, in the present invention, in order to increase the bonding force between the steel bars to be interlaced, one end face having a certain section opened and a bent end face are employed, and a predetermined restraining means for preventing clearance to lateral buckling is provided on the bent end face Another problem is the problem.

In addition, according to the present invention, it is another object of the present invention to provide a bending sectional area which is capable of contributing to prevention of loosening and increasing binding force by flexibly deforming a certain level of pressure from the coupling means when the electrolyte is electrolyzed.

In order to achieve the above object, the present invention provides a multi-stepped structural steel 100 having the following structure.

The upper structural steel section 100 is formed in a rectangular hollow opening with a front surface and a rear surface mutually communicating with each other and has a shape opened to the longitudinal direction so as to allow the interposition of the coupling means 1 to be branched on both sides starting from the center And a lower surface 20 which permits interposition of the coupling means 1 by drilling a large number of equally spaced fastening holes 21 on the same vertical line corresponding to the open area of the upper surface, .

Both ends of the region opened at the upper surface 10 include bending pieces 11 curved inwardly toward respective side surfaces adjacent to each other for increasing longitudinal stiffness and bonding force, The fastening holes 21 formed in the perforations in the perforations 21 include a mouthpiece piece 22 that is vertically upright at both ends in the longitudinal direction or a bent piece 23 that is curved to face each side adjacent to each other from both ends in the longitudinal direction Feature.

The clip member 30 is further fastened to the upper bending pieces 11 and 23 to prevent clearance and lateral buckling.

The upper clip member 30 is formed by bending both ends so as to correspond to the degree of bending of the bending pieces 11 and 23 so that the upper and lower clip members 30 are interposed between the bending pieces and the space formed by the upper surface 10 or the lower surface 20 do.

The upper bending piece 11 and the lower bending piece 22 are formed so that the internal angle of the upper bending piece 11 or the lower bending part 20 toward each side is varied depending on whether the upper bending piece 11 or 23 is fastened by the coupling means 1, So that the binding force is increased.

On the other hand, the upper bending pieces 11 and 23 are fixed to the upper surface 10 or the lower surface 20 as the tightening of the through-holes 31 of the clipped member 30 through the coupling means 1 is determined, The variable angle of the internal angle toward each side face and the degree of bending of both ends of the clip member are changed at the same time, so that the gap between the clip member and the upper surface or the lower surface is reduced with both ends of the clip member sandwiched therebetween.

According to the present invention constructed as above, it is possible to flexibly cope with changes in the field conditions without being limited to the upper surface of the type opened in the longitudinal direction and any one of the fastening positions specified by the bending piece or the mouth piece bent from the upper surface. And it is possible to provide various fastening positions, thereby maximizing the assembly compatibility.

That is, in the present invention, in order to increase the bonding force between the steel bars to be interlaced, since a curved bent piece formed from an upper surface and an upper surface opened at certain intervals is adopted, rigidity against the longitudinal direction is further given, A predetermined clip member for preventing buckling can be fastened so that a more stable and efficient engagement force is induced.

Particularly, the present invention is more effective because it contributes to prevention of loosening and maximization of binding force due to increase in frictional force by easily deforming the shape due to self-elasticity when a certain level of pressure is applied to the curved formed bending area by the engaging means.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a multi-stage prefabricated structural steel according to a preferred embodiment of the present invention; Fig.
FIG. 2 is a conceptual view showing that a joining means is applied to a multi-stage prefabricated structural steel according to a preferred embodiment of the present invention. FIG.
Fig. 3 is a conceptual diagram showing a partial excerpt of the internal structure of the multi-stage prefabricated structural steel shown in Fig. 1. Fig.
4 is a sectional view exemplarily showing the operation state of the bending piece and the clip member which are another essential parts when the joining means is applied to the multi-stage prefabricated structural steel proposed in the present invention.
FIGS. 5 to 7 are views showing the state of use of a multi-stepped structural steel structure according to a preferred embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which: FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. And throughout this specification, like reference numerals refer to like elements throughout.

The present invention is disclosed in the light of the technical idea of a lightweight structural steel which is used for supporting interior and exterior and various facility facilities.

More particularly, the present invention provides a multi-stage assemblability for bidirectional assemblies, a different configuration from the conventional ones, and a series of means employed in such a structure, thereby achieving excellent cross-sectional performance, self- The present invention relates to a multi-stage prefabricated structural steel 100 having an assembly compatibility so that it can more positively cope with a flexible fastening position due to a change in conditions and the like.

FIG. 1 is a perspective view of a multi-stage prefabricated structural steel according to a preferred embodiment of the present invention, FIG. 2 is a conceptual view showing that a joining means is applied to a multi-stage prefabricated structural steel according to a preferred embodiment of the present invention, Is a conceptual view showing the internal construction of the multi-stepped structural structural steel shown in FIG. 1, and FIGS. 5 to 7 are views showing the state of use of the multi-stepped structural structural steel constructed according to the preferred embodiment of the present invention.

As shown in FIGS. 1 to 3, the multi-stepped structural structural steel 100 proposed in the present invention has a bottom surface 20 opened at regular intervals with an upper surface 10 opened in the longitudinal direction, The ends bent at both the upper surface and / or the lower surface increase the stiffness in the member longitudinal direction.

Here, the ends bent to both sides from the upper surface 10 and the lower surface 20 refer to the bending pieces 11 and 23 of the present invention. Due to the constitution of the upper bending piece, a certain level of rigidity is increased And it is also a main means to maximize the bonding force or bonding force when mutually engaging with the other steel bars.

To this end, the present invention is largely provided with a square shaped body, which is divided into an upper surface 10, a lower surface 20, and both sides. At this time, the center of the upper surface 10 is opened in the longitudinal direction so as to allow interposition of the later engaging means 1, as well as the open ends of both sides are formed into the bent pieces 11 and 23, It can also be used as a means.

In addition, the mouth piece piece 22 in the form of an unfolded shape can be formed at the outer periphery of the lower surface of the lower surface 20 of the lower surface 20, and after the engaging means 1 is fixed to the end of the mouth piece piece, The step of the mouth piece 22 is adjusted downward, thereby contributing to an increase in binding force.

On the other hand, the lower surface 20 is formed by punching the fastening holes 21 at equal intervals with respect to the same path as the open area of the upper surface 10, and further bending pieces 23 corresponding to each other are formed in the fastening holes 21 So that the same function and effect as those of the bending piece 11 provided on the upper surface 10 are achieved.

In detail, the stiffening structural steel 100 is formed into a rectangular open hollow, in which the front surface and the rear surface mutually extend, and is divided into two sides starting from the center, A plurality of holes 21 are formed at equal intervals in the same vertical line corresponding to the open area of the upper surface so as to allow interposition of the coupling means 1, (20).

In particular, both ends of the region opened in the upper surface 10 include bent portions 11 curved inwardly toward respective side surfaces adjacent to each other in order to increase longitudinal stiffness and bonding force, The perforated fastening hole 21 preferably includes a mouthpiece piece 22 that is vertically upright at both ends in the longitudinal direction or a bent piece 23 that is curved toward each side adjacent to each other from both ends in the longitudinal direction Do.

The upper surface 10 and the lower surface 20 are used as a space for confining the sections with the coupling means 1 interposed therebetween. In order to maintain the rigidity of the section steel, .

The upper fastening hole 21 is similar to the elliptical structure extending in the longitudinal direction but not in the shape of a sphere as shown in the drawing, but the side edges where the bending piece 23 and the mouth piece 22 are located are linearly formed Thereby forming the size of the fastening hole at a non-excessive level.

The above coupling means 1 is a conventionally known concept including bolts, nuts, washers and the like.

The upper bending pieces 11 and 23 vary the degree of curvature according to the type of fastening between the structures and the type of the fastening bolt. For example, by adjusting the angle of the bent end portions of the bent bending pieces 11 and 23, wider use is possible.

In addition, the bending pieces 11 and 23 proposed by the present invention exhibit a frictional force on the joint surface due to self-elasticity during fastening of the binding member 1, thereby exhibiting a function of preventing loosening and increasing binding force. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, the upper bending pieces 11 and 23 include further fastening the clip member 30 to prevent clearance and lateral buckling.

At this time, the upper clip member 30 is bent at both ends so as to correspond to the degree of bending of the bending pieces 11 and 23, and is interposed between the bending pieces and the space formed by the upper surface 10 or the lower surface 20.

That is, in the present invention, a predetermined clip member 30 is proposed as means for preventing distortion or other deformation due to the opened region of the upper surface 10, Should be provided in a shape corresponding to the shape.

The clip member is constructed with an inclination corresponding to the bent angle of the bending piece in order to insert the clip member 30 into the bending pieces 11 and 23 having a predetermined curved shape from the upper surface 10 and the lower surface 20 Mutually customized constraints are implemented.

4 is a cross-sectional view illustrating an operation state of a bending piece and a clip member, which are another essential parts, when the joining means is applied to the multi-stepped structural structural steel proposed in the present invention.

As shown in FIG. 4, depending on whether the upper bending piece 11 or 23 is fastened by the coupling means 1, the internal angle of the upper bending piece 11 or the lower bending piece 20 is varied from the upper surface 10 or the lower surface 20, So as to increase the binding force.

The above-mentioned internal angle means the degree of inclination of the bending pieces 11, 23 starting from the upper surface or the lower surface. As each bending piece faces the side, the degree of the internal angle is determined, The inclination can be realized.

That is, when the fastening action is performed by positioning the fastening means 1 with the bending piece, the bending piece is closely contacted in the direction of the upper surface or the lower surface due to the self-pressing force. As a result, I will exert.

For example, it is preferable that the internal angle of the bending pieces 11 and 23 is within a range of 25 to 29 degrees. If the bending piece is provided in an outside of this range, it is difficult to deform its own shape, There is a possibility of causing deformation.

The upper bending pieces 11 and 23 are fixed to the upper surface 10 or the lower surface 20 as the tightening of the upper bending pieces 11 and 23 is determined by the coupling means 1 through the through holes 31 of the clip members 30, The inner diameters of the inner and outer diameters of the clip member are varied at the same time and the gap between the clip member and the upper surface or the lower surface of the clip member is reduced.

As described above, in order to maximize the assemblability between the sections due to securing of the fastening property of the fastening means 1, the fastening action of the fastening means in the state where the clip member 30 is inserted into the bending piece The bending pieces 11 and 23 are lowered to the upper surface 10 or the lower surface 20 and the clip member interposed between the upper and lower surfaces and the bent piece is also pressed down to realize the downward movement.

As a result, the bending pieces 11 and 23 as well as both ends of the clip member 30 are pressed in such a manner that they can be overlapped with the upper surface or the lower surface due to the tightening of the coupling means 1, More rigid binding forces can be induced as the joining of the sections is induced.

10. Top surface
11. Bending
20. When
21. Fastening hole
22. Mouthpiece
23. Bending
30. Clip member
31. Through hole
100. Structural steel

Claims (5)

An upper surface 10 formed in a rectangular open hollow in which the front surface and the back surface mutually communicate with each other and having a shape opened to the longitudinal direction so as to allow the interposition of the coupling means 1 to be branched on both sides from the center, , And a lower surface (20) which permits a large number of equally spaced fastening holes (21) on the same vertical line corresponding to the open area of the upper surface to allow interposition of the fastening means (1) Both ends of the opened region include bending pieces 11 curved inward so as to face each side adjacent to each other for the purpose of increasing the rigidity in longitudinal direction and the coupling force, and the fastening holes 21 formed in the upper side 20, And a bending piece (23) curved so as to face respective side surfaces adjacent to each other from both ends in the longitudinal direction, wherein the bending piece (23)
As the upper bending pieces 11 and 23 are determined to be fastened through the coupling means 1 to the through holes 31 of the clip members 30 fastened to each other, Wherein a gap between the upper surface or the lower surface of the clip member is reduced in a state in which both ends of the clip member are sandwiched between both sides of the clip member.
The method according to claim 1,
And the clip member (30) is further fastened to the upper bending piece (11, 23) to prevent clearance and lateral buckling.
3. The method of claim 2,
The upper clip member 30 is formed by bending both ends so as to correspond to the degree of bending of the bending pieces 11 and 23 so that the upper and lower clip members 30 are fitted and interposed between the bending pieces and the space formed by the upper surface 10 or the lower surface 20 Multi - stage prefabricated structural steel.
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