KR101367626B1 - Process of Steel Box Tube with Inner Diaphragm - Google Patents

Process of Steel Box Tube with Inner Diaphragm Download PDF

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KR101367626B1
KR101367626B1 KR1020120066256A KR20120066256A KR101367626B1 KR 101367626 B1 KR101367626 B1 KR 101367626B1 KR 1020120066256 A KR1020120066256 A KR 1020120066256A KR 20120066256 A KR20120066256 A KR 20120066256A KR 101367626 B1 KR101367626 B1 KR 101367626B1
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South Korea
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steel pipe
box steel
manufacturing
plate
assembly box
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KR1020120066256A
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Korean (ko)
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KR20130142755A (en
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염경수
최성모
김선희
홍윤기
최연호
이건형
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주식회사 액트파트너
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/24—Frameworks

Abstract

본 발명은 내부 다이어프램이 설치된 CFT기둥용 조립박스강관의 제작방법에 관한 것으로, 철판을 절곡한 종방향의 단위부재를 복수개를 이용하면서 내부 다이어프램을 완전히 설치한 후에 폐쇄구조로 조립 완성하는 조립박스강관의 제작방법에 관한 것이다.
본 발명에 따른 CFT기둥용 내부 다이어프램 설치형 조립박스강관 제작방법은, 종방향의 단위부재 복수개를 횡방향으로 연결 조립하여 박스강관으로 제작하는 방법으로서, 철판을 절곡하여 종방향의 단위부재를 복수개 제작하되 L자형으로 절곡된 본체부와 본체부의 양단에서 내향하여 더 절곡된 단부절곡부를 구비하는 형태로 제1단위부재를 제작하는 제1단계; 제1단위부재에 보강플레이트를 접합하면서 부분보강강관을 제작하는 제2단계; 제2단계와 동시에 또는 순차적으로 부분보강강관 복수개를 상호 맞대어 용접 접합하면서 폐쇄형 조립박스강관으로 완성하는 제3단계;로 이루어지는 것을 특징으로 한다.The present invention relates to a manufacturing method of the assembled box steel pipe for a CFT pillar having an internal diaphragm, the assembly box steel pipe to complete the assembly in a closed structure after completely installing the internal diaphragm while using a plurality of longitudinal unit members bent steel plate It relates to the production method of.
According to the present invention, a method for manufacturing an inner diaphragm-mounted assembly box steel pipe for a CFT pillar is a method of fabricating a box steel pipe by assembling a plurality of longitudinal unit members in a lateral direction, and manufacturing a plurality of longitudinal unit members by bending a steel plate. A first step of manufacturing a first unit member in a form having a body portion bent in an L shape and an end bent portion further bent inward from both ends of the body portion; A second step of manufacturing a partial reinforcement pipe while joining a reinforcing plate to the first unit member; And a third step of completing the closed assembly box steel pipe while simultaneously welding a plurality of partial reinforcement pipes to each other at the same time or sequentially to the second step.

Description

ＣＦＴ기둥용 내부 다이어프램 설치형 조립박스강관의 제작방법{Process of Steel Box Tube with Inner Diaphragm}Process for manufacturing inner diaphragm-mounted assembly box steel pipe for CFT column {Process of Steel Box Tube with Inner Diaphragm}

본 발명은 내부 다이어프램이 설치된 CFT기둥용 조립박스강관의 제작방법에 관한 것으로, 철판을 절곡한 종방향의 단위부재를 복수개를 이용하면서 내부 다이어프램을 완전히 설치한 후에 폐쇄구조로 조립 완성하는 조립박스강관의 제작방법에 관한 것이다.
The present invention relates to a manufacturing method of the assembled box steel pipe for a CFT pillar having an internal diaphragm, the assembly box steel pipe to complete the assembly in a closed structure after completely installing the internal diaphragm while using a plurality of longitudinal unit members bent steel plate It relates to the production method of.

CFT(Concrete Filled steel Tube)구조는 강관에 콘크리트를 충전하여 구속시킨 구조방식인데, 강성, 내력, 변형 등의 구조적인 면뿐만 아니라 내화 및 시공 등 다방면에서 우수한 성능이 인정되어 최근 활발하게 적용되고 있다.The CFT (Concrete Filled Steel Tube) structure is a structure system in which steel pipes are filled with concrete and has been recently actively applied due to its excellent performance in various aspects such as fire resistance and construction as well as structural aspects such as rigidity, strength and deformation .

CFT구조는 주로 기둥 부재를 CFT기둥으로 시공하고 보 부재를 H형강 철골보로 시공하여 완성하는데, 이 경우 CFT기둥과 철골보의 접합부 시공이 중요하다. CFT기둥과 철골보의 접합부에서 철골보에 작용하는 힘에 의해 CFT기둥의 강관이 국부 파괴되거나 강관의 국부변형을 초래하는 응력집중에 의해서 접합부가 조기에 파단하 우려가 크기 때문이다. 이에 따라 접합부는 충분한 강성 및 내력을 갖도록 적절하게 보강하게 되는데, 도 1은 종래에 적용되어 오던 접합부의 모멘트 보강구조를 도시한다.The CFT structure is mainly completed by constructing column members with CFT columns and beam members with H-beam steel beams. In this case, it is important to construct joints between CFT columns and steel beams. This is because there is a high possibility that the joint breaks prematurely due to stress concentration that causes local failure of the steel pipe of the CFT column or local deformation of the steel pipe due to the force acting on the steel ball at the joint between the CFT column and the cheolgolbo. Accordingly, the joint is appropriately reinforced to have sufficient rigidity and strength. FIG. 1 illustrates a moment reinforcing structure of a joint, which has been conventionally applied.

도 1에서와 같이 종래에는 모멘트 보강을 위해 접합부에 다이어프램을 설치하는 방식을 채택하여 왔다. 다이어프램 설치방식은 그 설치 위치에 따라 내측 다이어프램 방식(도 1(a)), 관통 다이어프램 방식(도 1(b)) 외측 다이어프램 방식(도 1(c))로 구분된다. 내측 다이어프램 방식은 응력전달이 명확한 장점이 있으나, 다이어프램의 설치가 용이하지 않고 용접부위에 용접불량이 많다는 단점이 있다. 외측 다이어프램 방식은 외관이 복잡하여 다이어프램의 제작 및 설치가 용이하지 않고 마감 공사 등의 후속 작업에 어려움이 있다. 관통 다이어프램 방식의 경우에는 내측 다이어프램 방식과 마찬가지로 응력전달이 명확한 장점이 있기는 하나, 강관을 잘라서 다이어프램을 용접하는 방식이기 때문에 제작과정이 복잡하고 물량이 많이 소요되는 단점이 있다.
As shown in FIG. 1, a method of installing a diaphragm in the joint part has been conventionally adopted to reinforce the moment. The diaphragm mounting method is classified into an inner diaphragm method (Fig. 1 (a)) and a through diaphragm method (Fig. 1 (b)) outer diaphragm method (Fig. 1 (c)) according to the installation position. The inner diaphragm method has a clear stress transmission advantage, but there is a disadvantage that the installation of the diaphragm is not easy and there are many welding defects in the welded part. The outer diaphragm method is complicated in appearance and it is not easy to manufacture and install the diaphragm, and there is a difficulty in subsequent work such as finishing work. In the case of the through-diaphragm method, there is a clear advantage of stress transmission like the inner diaphragm method, but the manufacturing process is complicated and requires a lot of quantity because the diaphragm is cut by welding the steel pipe.

본 발명은 종래 CFT구조에서 접합부 보강을 위한 다이어프램의 설치 문제를 개선하고자 개발된 것으로서, 응력전달이 명확한 내부 다이어프램을 간단하면서 안정적으로 설치할 수 있는 새로운 조립박스강관 제작방법을 제공하는데 기술적 과제가 있다.
The present invention was developed to improve the installation problem of the diaphragm for reinforcing the joint in the conventional CFT structure, there is a technical problem to provide a new assembly box steel pipe manufacturing method that can simply and stably install the internal diaphragm with a clear stress transmission.

상기한 기술적 과제를 해결하기 위해 본 발명은, 종방향의 단위부재 복수개를 횡방향으로 연결 조립하여 박스강관으로 제작하는 방법으로서, 철판을 절곡하여 종방향의 단위부재를 복수개 제작하되 L자형으로 절곡된 본체부와 본체부의 양단에서 내향하여 더 절곡된 단부절곡부를 구비하는 형태로 제1단위부재를 제작하는 제1단계; 제1단위부재에 보강플레이트를 접합하면서 부분보강강관을 제작하는 제2단계; 제2단계와 동시에 또는 순차적으로 부분보강강관 복수개를 상호 맞대어 용접 접합하면서 폐쇄형 조립박스강관으로 완성하는 제3단계;로 이루어지는 것을 특징으로 하는 CFT기둥용 내부 다이어프램 설치형 조립박스강관 제작방법을 제공한다. 제3단계에서 조립박스강관으로 폐쇄단면이 형성되기 전에 개방된 상태에서 내부 다이어프램으로 역할하는 보강플레이트를 간편하게 용접접합하는 것이다.
In order to solve the above technical problem, the present invention, as a method of manufacturing a plurality of unit members in the longitudinal direction in the horizontal direction by connecting and assembling the box steel pipe, bending a steel plate to produce a plurality of longitudinal unit members in the L-shaped A first step of manufacturing the first unit member in a form having a main body portion and an end bent portion bent further inwardly at both ends of the main body portion; A second step of manufacturing a partial reinforcement pipe while joining a reinforcing plate to the first unit member; Provides a method for producing an internal diaphragm-mounted assembly box steel pipe for a CFT pillar, comprising: a third step of simultaneously or sequentially joining a plurality of partially reinforced steel pipes to each other by welding and joining each other. . In the third step, before the closed section is formed by the assembly box steel pipe, the weld plate is simply welded to the reinforcing plate serving as the inner diaphragm in the open state.

본 발명에 따르면 다음과 같은 효과를 기대할 수 있다.According to the present invention, the following effects can be expected.

첫째, 조립박스강관 제작과정에서 폐쇄구조로 완성하기 전에 내부 다이어프램을 완전히 설치할 수 있기 때문에 내부 다이어프램을 쉽고도 정확하게 설치할 수 있어 내부 다이어프램 설치형 조립박스강관의 생산품질을 향상시킬 수 있다.First, since the internal diaphragm can be completely installed before completing the closed structure in the assembly box steel pipe manufacturing process, the internal diaphragm can be easily and accurately installed, thereby improving the production quality of the internal diaphragm-mounted assembly box steel pipe.

둘째, 본 발명에 따라 제작된 조립박스강관은 내부 다이어프램이 모서리에 배치되어 가운데가 빈 열린 형태를 갖기 때문에 콘크리트충전강관 기둥으로 유리하게 활용할 수 있다.
Second, the assembly box steel pipe manufactured according to the present invention can be advantageously used as a concrete filled steel pipe pillar because the inner diaphragm is arranged in the corner and has an open shape in the center.

도 1은 종래 CFT구조에서 다이어프램의 설치방식에 대한 다양한 개요도이다.
도 2는 특허 제0684931호 따른 조립강관박스기둥을 보여준다.
도 3과 도 4는 본 발명에 따른 조립박스강관 제작방법에 대한 제1실시예로서, 각각 제1부분보강강관의 개요도와 조립도이다.
도 5는 도 3의 제1부분보강강관을 이용하여 완성한 다양한 형태의 조립박스강관에 대한 종단면도이다.
도 6과 도 7은 본 발명에 따른 조립박스강관 제작방법에 대한 제2실시예로서, 각각 제2부분보강강관의 개요도와 제3부분보강강관을 이용하여 완성한 조립박스강관의 종단면도이다.
도 8은 도 5(a)의 조립박스강관을 이용하여 완성한 CFT기둥과 철골보의 접합부의 횡단면도(a)와 종단면도(b)이다.1 is a various schematic diagram of the installation method of the diaphragm in the conventional CFT structure.
2 shows an assembly steel pipe box pillar according to Patent No. 0684931.
3 and 4 is a first embodiment of the assembly box steel pipe manufacturing method according to the present invention, a schematic view and an assembly view of the first partial reinforcement pipe, respectively.
5 is a longitudinal cross-sectional view of the assembly box steel pipe of various forms completed using the first partial reinforcing steel pipe of FIG.
6 and 7 is a second embodiment of the method for manufacturing the assembly box steel pipe according to the present invention, a schematic cross-sectional view of the second partial reinforcement pipe and the longitudinal cross-sectional view of the completed assembly box steel pipe using the third partial reinforcement pipe.
8 is a cross-sectional view (a) and a longitudinal cross-sectional view (b) of the junction of the CFT column and the cheolgolbo completed using the assembly box steel pipe of Figure 5 (a).

이하 첨부한 도면 및 바람직한 실시예에 따라 본 발명을 상세히 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings and preferred embodiments.

도 2는 특허 제0684931호 따른 조립박스강관을 도시하는데, 보는 바와 같이 특허 제0684931호는 종방향의 단위부재 복수개를 횡방향으로 연결 조립하여 폐쇄형의 박스강관으로 완성하는데 특징이 있다. 특히 철판을 절곡하여 양단부를 단부절곡부로 형성시킨 단위부재 복수개를 단부절곡부끼리 맞대어 강관 외부에서 용접접합하기 때문에 단부절곡부가 강관 내부로 돌출되는 형태의 박스강관으로 완성된다. 이러한 박스강관은 강관 내부로 돌출된 단부절곡부가 좌굴에 유리하게 대응하는 것은 물론 강관 내부에 콘크리트가 충전될 때 콘크리트의 구속력 증대에도 기여하므로 CFT구조의 기둥부재로 유리하게 적용할 수 있다. 본 발명은 이와 같은 조립박스강관의 제작방법을 제안하는데, 특히 내부 다이어프램을 설치하면서 조립박스강관을 제작하는 방법을 제안한다. 철골보와의 접합부를 고려하여 철골보에서 조립박스강관으로 응력전달을 원활히 하기 위해 조립박스강관 제작과정에서 내부 다이어프램을 설치한 것이다. FIG. 2 shows an assembly box steel pipe according to Patent No. 0684931. As shown, Patent No. 0684931 has a characteristic of completing a closed box steel pipe by assembling a plurality of longitudinal unit members in a lateral direction. In particular, a plurality of unit members formed by bending the steel plate to form both ends as end bent portions are welded from the outside of the steel pipe by joining the end bent portions to form a box steel pipe in which the end bent portion protrudes into the steel pipe. This box steel pipe can be advantageously applied to the column member of the CFT structure because the end bent portion protruding into the steel pipe advantageously corresponds to the buckling, and also contributes to the increase of the binding force of the concrete when the concrete is filled in the steel pipe. The present invention proposes a method of manufacturing the assembled box steel pipe, in particular, a method of manufacturing the assembled box steel pipe while installing the inner diaphragm. The internal diaphragm was installed during the manufacturing process of the assembly box steel pipe in order to facilitate the stress transfer from the cheolgolbo to the assembly box steel pipe in consideration of the junction with the cheolgolbo.

본 발명에 따른 조립박스강관의 제작방법은, 철판을 절곡하여 종방향의 단위부재를 복수개 제작하되 L자형으로 절곡된 본체부(110a)와 본체부(110a)의 양단에서 내향하여 더 절곡된 단부절곡부(110b)를 구비하는 형태로 제1단위부재(110)를 제작하는 제1단계; 제1단위부재(110)에 보강플레이트(120)를 접합하여 부분보강강관(100a, 100b)을 제작하는 제2단계; 제2단계와 동시에 또는 순차적으로 부분보강강관(100a, 100b) 복수개를 상호 맞대어 용접 접합함으로써 폐쇄형 조립박스강관으로 완성하는 제3단계;로 이루어진다. 제2단계에서 내부 다이어프램으로 역할하는 보강플레이트(120)를 용접접합 설치한 후에 제3단계에서 조립박스강관으로 폐쇄하기 때문에 내부 다이어프램의 용접 설치과정은 폐쇄단면이 형성되기 전에 개방된 상태에서 간편하게 진행할 수 있다. 특히 본 발명은 내부 다이어프램으로 역할하는 보강플레이트(120)가 사다리꼴 형태로 마련되어 완성된 조립박스강관의 모서리에 배치되기 때문에 완성된 조립박스강관은 자연스럽게 가운데가 개방된 구조가 되어 콘크리트(C) 충전에 유리한 형태가 된다. 본 발명은 제2단계에서 제작되는 부분보강강관(100a, 100b)의 구체적인 형태에 따라 2가지의 실시예로 구분된다.
In the manufacturing method of the assembly box steel pipe according to the present invention, while bending the iron plate to produce a plurality of unit members in the longitudinal direction, the ends bent further inward from both ends of the body portion 110a and the body portion (110a) bent in an L-shape A first step of manufacturing the first unit member 110 in the form having a bent portion (110b); A second step of fabricating partial reinforcement pipes 100a and 100b by bonding the reinforcing plate 120 to the first unit member 110; And a third step of completing the closed assembly box steel pipe by welding a plurality of partial reinforcement pipes 100a and 100b to each other at the same time or sequentially with the second step. The welding installation process of the internal diaphragm can be easily performed in the open state before the closed section is formed because the second step is closed by the assembly box steel pipe after the welded installation of the reinforcing plate 120 serving as the internal diaphragm in the second step. Can be. In particular, the present invention is because the reinforcing plate 120, which serves as an internal diaphragm is arranged in the shape of a trapezoidal shape is placed in the corner of the completed assembly box steel pipe, the finished assembly box steel pipe naturally becomes an open structure in the center (C) filling It becomes an advantageous form. The present invention is divided into two embodiments according to the specific form of the partial reinforcement pipe (100a, 100b) is produced in the second step.

도 3과 도 4는 본 발명에 따른 조립박스강관 제작방법에 대한 제1실시예로서, 각각 제1부분보강강관의 개요도와 조립도이다. 제1부분보강강관(100a)은 도 3에서와 같이 제1단위부재(110) 내부에 보강플레이트(120)가 용접 접합되는 형태로 제작된다. 보강플레이트(120)는 철골보(SB)와의 접합부를 고려하여 철골보(SB)의 플랜지 위치에 대응하게 설치된다(도 8(b) 참조). 보강플레이트(120)는 사다리꼴 형태의 플랜지를 구비하는 부재로 마련하기만 하면 되며, 도 3(b)에서는 본 발명에서 보강플레이트(120)로 바람직하게 제안하는 형태로 평플레이트, L형플레이트, T형플레이트를 확인할 수 있다. 다만 완성된 조립박스강관 내부에 콘크리트가 충전되면 보강플레이트(120)가 콘크리트에 구속되기 때문에, 콘크리트와의 구속력을 고려하면 보강플레이트로는 L형플레이트나 T형플레이트가 더욱 유리하다. 제1부분보강강관(100a)이 완성되면 도 4와 같이 제1부분보강강관(100a) 4개를 단부절곡부(110b)끼리 맞대어 용접접합하는 것으로 폐쇄 단면의 조립박스강관을 완성한다.3 and 4 is a first embodiment of the assembly box steel pipe manufacturing method according to the present invention, a schematic view and an assembly view of the first partial reinforcement pipe, respectively. As shown in FIG. 3, the first partial reinforcing pipe 100a is manufactured in a form in which the reinforcing plate 120 is welded to the inside of the first unit member 110. The reinforcing plate 120 is installed to correspond to the flange position of the cheolgolbo (SB) in consideration of the junction with the cheolgolbo (SB) (see Fig. 8 (b)). The reinforcing plate 120 only needs to be provided as a member having a trapezoidal flange, and in FIG. 3 (b), the flat plate, the L-shaped plate, and the T are preferably in the form proposed by the reinforcing plate 120 in the present invention. You can check the mold plate. However, since the reinforcing plate 120 is confined to the concrete when the concrete is filled in the completed assembly box steel pipe, L-type plate or T-type plate is more advantageous as a reinforcing plate in consideration of the binding force with the concrete. When the first partial reinforcement pipe 100a is completed, as shown in FIG. 4, the four first partial reinforcement pipes 100a are welded to each other by bending the end bent portions 110b to complete the assembly box steel pipe of the closed section.

도 5는 도 3의 제1부분보강강관(100a)을 이용하여 완성한 다양한 형태의 조립박스강관에 대한 종단면도이다. 도 5(a)는 도 4와 같이 제1부분보강강관(100a) 4개로 완성한 조립박스강관의 외측면에 외부보강판(150)을 더 접합 설치한 예가 된다. 여기서 외부보강판(150)은 보강플레이트(120)가 설치된 위치에 대응한 위치에서 제1부분보강강관(100a) 상호 간의 맞댄이음부에 덧대어 용접접합하면 된다(도 8 참조).5 is a longitudinal cross-sectional view of the assembly box steel pipe of various forms completed using the first partial reinforcing steel pipe (100a) of FIG. 5 (a) is an example in which the outer reinforcing plate 150 is further bonded and installed on the outer surface of the assembly box steel pipe completed with four first partial reinforcing pipes 100 a as shown in FIG. 4. In this case, the external reinforcing plate 150 may be welded to the butt joints between the first partial reinforcing pipes 100a at positions corresponding to the positions where the reinforcing plates 120 are installed (see FIG. 8).

도 5(b)와 도 5(c)는 제1부분보강강관(100a) 4개와 제2단위부재(130)로 완성한 조립박스강관의 예로서, 제2단위부재(130)로 조립박스강관의 단면크기를 확장시킨 예가 된다. 제2단위부재(130)는 ㅡ자형의 본체부(130a)와 본체부(130a)의 양단에서 내향하여 더 절곡된 단부절곡부(130b)를 구비하도록 마련되며, 제1부분보강강관(100a) 사이에 설치된다. 제2단위부재(130)도 단부절곡부(130b)를 구비하기 때문에 제1부분보강강관(100a)과 단부절곡부(110b, 130b)끼리 상호 맞대어 용접 접합할 수 있다. 도 5(b)는 제1부분보강강관(100a) 4개와 제2단위부재(130) 2개로 조립박스강관을 완성하고 있고, 도 5(c)는 제1부분보강강관(100a) 4개와 제2단위부재(130) 4개로 조립박스강관을 완성하고 있다. 제2단위부재(130)의 추가 설치로 단면크기가 확장되면 내부 다이어프램도 추가 보강할 필요가 있는데, 본 발명에서는 연결플레이트(140)로 마주보는 제2단위부재(130) 상호 간을 연결하면서 용접접합하고 있다. 여기서 연결플레이트(140)는 제3단계에서 조립박스강관으로 완전히 폐쇄되기 전에 설치하면 된다.5 (b) and 5 (c) are examples of the assembled box steel pipe completed with four first partial reinforcement pipes (100a) and the second unit member 130, of the assembled box steel pipe with the second unit member (130) This is an example of expanding the cross-sectional size. The second unit member 130 is provided to have an end portion bent portion (130b) bent further inward from both ends of the body portion (130a) of the --shaped body portion 130a, the first partial reinforcement pipe (100a) It is installed between. Since the second unit member 130 also includes an end bent portion 130b, the first partial reinforcement pipe 100a and the end bent portions 110b and 130b may be welded to each other. Figure 5 (b) completes the assembly box steel pipe with four first partial reinforcement pipe (100a) and two second unit member 130, Figure 5 (c) is the first partial reinforcement pipe (100a) and the first The assembly box steel pipe is completed with four two unit members (130). When the cross-sectional size is expanded by additional installation of the second unit member 130, it is necessary to further reinforce the internal diaphragm. In the present invention, the second unit member 130 facing each other with the connecting plate 140 is connected while welding. Is joining. Here, the connection plate 140 may be installed before being completely closed by the assembly box steel pipe in the third step.

도 5(d)는 제1부분보강강관(100a) 4개와 T형 조립부재(100d)로 완성한 조립박스강관의 예로서, T형 조립부재(100c)로 조립박스강관의 단면크기를 확장시킨 예가 된다. T형 조립부재(100c)는 2개의 제1단위부재(110) 상호 간을 본체부(110a)끼리 등지게 배치하여 단부절곡부(110b)끼리 접합함으로써 T자형으로 완성한 것인데, 제1부분보강강관(100a) 사이에 설치된다. T형 조립부재(100c)도 제1부분보강강관(100a)과 마찬가지로 제1단위부재(110)로 제작한 것이기 때문에 제1부분보강강관(100a)과 단부절곡부(110b)끼리 상호 맞대어 용접 접합할 수 있다. 도 5(d)는 T형 조립부재(100c)의 제1단위부재(110)를 제1부분보강강관(100a)의 제1단위부재(110)보다 작은 크기로 마련하여 서로 마주보는 T형 조립부재(100c) 사이를 열린 구간으로 완성하고 있다. T형 조립부재(100d)로 단면크기를 확장시킨 경우에도 연결플레이트(140)를 더 접합 설치하여 보강한다.
Figure 5 (d) is an example of an assembly box steel pipe completed with four first partial reinforcement pipe (100a) and the T-shaped assembly member (100d), an example of extending the cross-sectional size of the assembly box steel pipe with a T-shaped assembly member (100c) do. T-shaped assembly member (100c) is to complete the T-shaped by arranging the two first unit member (110) mutually equal to the body portion (110a) between the end bent portion (110b), the first partial reinforcement pipe It is provided between 100a. Since the T-shaped assembly member 100c is made of the first unit member 110 similarly to the first partial reinforcement pipe 100a, the first partial reinforcement pipe 100a and the end bent portion 110b are welded to each other. can do. FIG. 5 (d) shows that the first unit member 110 of the T-shaped assembly member 100c is smaller than the first unit member 110 of the first partial reinforcing pipe 100a to face each other. The section 100c is completed in an open section. Even when the cross-sectional size is expanded by the T-shaped assembly member 100d, the connection plate 140 is further bonded and reinforced.

도 6과 도 7은 본 발명에 따른 조립박스강관 제작방법에 대한 제2실시예로서, 도 6은 제2부분보강강관(100b)의 개요도이고, 도 7은 도 6의 제2부분보강강관(100b)으로 완성한 조립박스강관의 종단면도이다. 제2부분보강강관(100b)은 도 6에서와 같이 3개의 제1단위부재(110) 상호 간을 단부절곡부(110b)끼리 맞대어 접합되는 한편, 3개의 제1단위부재(110)에 의해 형성되는 공간 내부에 서로 이웃하지 아니한 2개의 제1단위부재(110)의 본체부 상호 간을 연결하도록 보강플레이트(120)가 용접접합되는 형태로 제작된다. 도 6의 제2부분보강강관(100c)은 4개를 서로 맞대어 접합함으로써 도 7과 같은 조립박스강관으로 완성된다. 도 7에서는 완성된 조립박스강관의 외측면에 외부보강판(150)을 더 접합 설치하고 있다.
6 and 7 is a second embodiment of the method for manufacturing the assembly box steel pipe according to the present invention, Figure 6 is a schematic view of the second partial reinforcement pipe (100b), Figure 7 is a second partial reinforcement pipe of Figure 6 ( This is a longitudinal sectional view of the assembly box steel pipe completed in 100b). As shown in FIG. 6, the second partial reinforcement pipe 100b is joined to each other by bending the end portions 110b between the three first unit members 110, and is formed by the three first unit members 110. The reinforcing plate 120 is manufactured in a form in which the reinforcing plates 120 are welded to each other to connect the main body parts of the two first unit members 110 that are not adjacent to each other in the space. The second partial reinforcing pipe 100c of FIG. 6 is completed by assembling box steel pipe as shown in FIG. 7 by joining four to each other. In Figure 7, the outer reinforcing plate 150 is further bonded to the outer surface of the completed assembly box steel pipe.

도 8은 도 5(a)의 조립박스강관을 이용하여 완성한 CFT기둥과 철골보(SB)의 접합부의 횡단면도(a)와 종단면도(b)이다. 본 발명에 따라 제작 완성된 조립박스강관은 그 내부에 보강플레이트(120)에 의한 다이어프램이 설치된 상태이고 그 내부에 콘크리트(C)가 충전되어 콘크리트충전강관기둥으로 완성되기 때문에, 철골보(SB)와 안정적인 접합부를 구성한다. 특히 도 8에서는 조립박스강관의 외측면에 외부보강판(150)을 더 접합 설치한 상태에서 철골보(SB)와 접합부를 구성하고 있는데, 이 경우 외부보강판(150)은 철골보(SB)가 접합될 때에는 철골보의 단부 보강에 기여하고, 철골보(SB)가 접합되지 아니할 때에는 조립박스강관의 인장응력 보강에 기여한다.
8 is a cross-sectional view (a) and a longitudinal cross-sectional view (b) of the junction of the CFT column and the cheolgolbo (SB) completed using the assembly box steel pipe of Figure 5 (a). The fabricated box steel pipe manufactured according to the present invention is a state in which the diaphragm is installed by the reinforcing plate 120 and the concrete (C) is filled therein, thus completing the concrete-filled steel pipe column, and the cheolgolbo (SB) and Construct a stable joint. In particular, in Figure 8, the outer reinforcing plate 150 on the outer side of the assembly box steel pipe is further configured to form a joint with the cheolgolbo (SB), in this case, the external reinforcing plate 150 is joined to the cheolgolbo (SB) If the steel beams are to contribute to the end reinforcement, when the steel beams (SB) is not bonded contributes to the tensile stress of the assembly box steel pipe.

이상에서 본 발명은 구체적인 실시예를 참조하여 상세히 설명되었으나, 실시예는 본 발명을 예시하기 위한 것일 뿐이므로, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 치환, 부가 및 변형된 실시 형태들 역시 아래에 첨부한 특허청구범위에 의하여 정하여지는 본 발명의 보호범위에 속한다고 할 것이다.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the present invention is not limited to the above-described exemplary embodiments, and various modifications, additions and substitutions may be made without departing from the scope of the present invention. And the scope of the present invention is defined by the appended claims.

100a, 100b: 부분보강강관
100c: T형 조립부재
110, 130: 단위부재
110a, 130a: 본체부
110b, 130b: 단부절곡부
120: 보강플레이트
140: 연결플레이트
150: 외부보강판
SB: 철골보
C: 콘크리트100a, 100b: partially reinforced steel pipe
100c: T-shaped assembly member
110, 130: unit member
110a, 130a: main body
110b, 130b: end bent portion
120: reinforcing plate
140: connecting plate
150: external reinforcing plate
SB: Cheolgolbo
C: Concrete

Claims (6)

종방향의 단위부재 복수개를 횡방향으로 연결 조립하여 박스강관으로 제작하는 방법으로서,
철판을 절곡하여 종방향의 단위부재를 복수개 제작하되, L자형으로 절곡된 본체부(110a)와 본체부(110a)의 양단에서 내향하여 더 절곡된 단부절곡부(110b)를 구비하는 형태로 제1단위부재(110)를 제작하는 제1단계;
상기 제1단위부재 내부에서 절곡된 본체부(110a)의 2면을 횡방향으로 연결하도록 사다리꼴 형태의 플랜지를 구비하는 보강플레이트(120)를 용접 접합함으로써, 제1부분보강강관(100a)으로 제작하는 제2단계;
상기 제2단계와 동시에 또는 순차적으로, 상기 제1부분보강강관(100a) 4개를 단부절곡부(110b)끼리 상호 맞대어 용접 접합함으로써, 내부의 네 모서리에 보강플레이트(120)가 접합된 폐쇄형 조립박스강관으로 완성하는 제3단계;
로 이루어져 상기 보강플레이트(120)가 내부 다이어프램으로 설치되는 것을 특징으로 하는 CFT기둥용 내부 다이어프램 설치형 조립박스강관의 제작방법.As a method of manufacturing a box steel pipe by assembling a plurality of longitudinal unit members in the transverse direction,
The steel sheet is bent to produce a plurality of unit members in the longitudinal direction, and has a main body portion 110a bent in an L shape and an end bent portion 110b further bent inward from both ends of the body portion 110a. A first step of manufacturing the one unit member 110;
The first partial reinforcing pipe 100a is manufactured by welding-bonding a reinforcing plate 120 having a trapezoidal flange to connect two surfaces of the main body part 110a bent in the first unit member in a transverse direction. A second step of doing;
Simultaneously or sequentially with the second step, four first partial reinforcement pipes 100a are welded to each other by bending the end bent portions 110b to each other, so that the reinforcing plates 120 are joined to four inner corners. A third step of completing the assembly box steel pipe;
Method for producing an inner diaphragm-mounted assembly box steel pipe for a CFT pillar, characterized in that the reinforcement plate 120 is installed as an inner diaphragm. 제1항에서,
상기 제1단계는, ㅡ자형의 본체부(130a)와 본체부(130a)의 양단에서 내향하여 더 절곡된 단부절곡부(130b)를 구비하는 형태의 제2단위부재(130)를 제작하는 과정을 더 포함하면서 실시하고,
상기 제3단계는, 제1부분보강강관(100a) 사이에 상기 제2단위부재(130)를 더 배치하여 단부절곡부(110b ,130b)끼리 상호 맞대어 용접 접합하면서 실시하되, 서로 마주보는 제2단위부재(130) 상호 간을 연결하는 연결플레이트(140)를 더 용접 접합하면서 실시하는 것을 특징으로 하는 CFT기둥용 내부 다이어프램 설치형 조립박스강관의 제작방법.In claim 1,
The first step is a process of manufacturing a second unit member 130 having a ㅡ -shaped body portion 130a and the end bent portion 130b further bent inwardly at both ends of the body portion 130a. We carry out while including more,
The third step may be performed by further arranging the second unit member 130 between the first partial reinforcing pipes 100a to weld the end bent portions 110b and 130b to each other, but to face each other. Method for producing an inner diaphragm-mounted assembly box steel pipe for a CFT pillar, characterized in that the unit member 130 is carried out by further welding and joining the connection plate 140 connecting each other. 제1항에서,
상기 제2단계는, 2개의 제1단위부재(110) 상호 간을 본체부(110a)끼리 등지어 단부절곡부(110b)끼리 상호 맞대게 배치한 상태에서 용접 접합함으로써 T형 조립부재(100c)로 제작하는 과정을 더 포함하면서 실시하고,
상기 제3단계는, 제1부분보강강관(100a) 사이에 상기 T형 조립부재(100c)를 더 배치하여 단부절곡부(110b)끼리 상호 맞대어 용접 접합하면서 실시하되, T형 조립부재(100c) 상호 간을 연결하도록 연결플레이트(140)를 더 용접 접합하면서 실시하는 것을 특징으로 하는 CFT기둥용 내부 다이어프램 설치형 조립박스강관의 제작방법.In claim 1,
In the second step, the T-shaped assembly member 100c is welded and joined in a state in which the two first unit members 110 are arranged to face each other such that the end bent portions 110b are opposed to each other. While including the process of making more,
In the third step, the T-shaped assembly members 100c are further disposed between the first partial reinforcing pipes 100a, and the end bent portions 110b are welded to each other, but the T-shaped assembly members 100c are joined together. Method of manufacturing an inner diaphragm-mounted assembly box steel pipe for a CFT pillar, characterized in that the connection plate 140 is carried out by further welding and bonding to connect each other. 종방향의 단위부재 복수개를 횡방향으로 연결 조립하여 박스강관으로 제작하는 방법으로서,
철판을 절곡하여 종방향의 단위부재를 복수개 제작하되, L자형으로 절곡된 본체부(110a)와 본체부(110a)의 양단에서 내향하여 더 절곡된 단부절곡부(110b)를 구비하는 형태로 제1단위부재(110)를 제작하는 제1단계;
3개의 제1단위부재(110) 상호 간을 단부절곡부(110b)끼리 맞대어 접합하는 한편, 3개의 제1단위부재(110)에 의해 형성되는 공간 내부에서 서로 이웃하지 아니한 2개의 제1단위부재의 본체부(110a) 상호 간을 횡방향으로 연결하도록 사다리꼴 형태의 플랜지를 구비하는 보강플레이트(120)를 용접 접합함으로써, 제2부분보강강관(100b)으로 제작하는 제2단계;
상기 제2단계와 동시에 또는 순차적으로, 제2부분보강강관(100b) 4개를 단부절곡부(110b)끼리 상호 맞대어 용접 접합함으로써, 내부의 네 모서리에 보강플레이트(120)가 접합된 폐쇄형 조립박스강관으로 완성하는 제3단계;
로 이루어져 상기 보강플레이트(120)가 내부 다이어프램으로 설치되는 것을 특징으로 하는 CFT기둥용 내부 다이어프램 설치형 조립박스강관의 제작방법.As a method of manufacturing a box steel pipe by assembling a plurality of longitudinal unit members in the transverse direction,
The steel sheet is bent to produce a plurality of unit members in the longitudinal direction, and has a main body portion 110a bent in an L shape and an end bent portion 110b further bent inward from both ends of the body portion 110a. A first step of manufacturing the one unit member 110;
The two first unit members which are not joined to each other in the space formed by the three first unit members 110 while the three first unit members 110 are joined to each other by the end bent portions 110b. A second step of manufacturing the second reinforcing steel pipe (100b) by welding-bonding a reinforcing plate (120) having a flange of a trapezoidal shape so as to connect the main body portions (110a) to each other in a lateral direction;
Simultaneously or sequentially with the second step, four second partial reinforcement pipes (100b) are welded to each other by bending the end bent portions (110b) to each other, so that the reinforcing plate 120 is joined to the four inner corners of the closed assembly. A third step of completing the box steel pipe;
Method for producing an inner diaphragm-mounted assembly box steel pipe for a CFT pillar, characterized in that the reinforcement plate 120 is installed as an inner diaphragm. 제1항 내지 제4항 중 어느 한 항에서,
상기 제3단계 후에,
완성된 폐쇄형 조립박스강관의 외측면에 외부보강판(150)을 용접접합하여 설치하되, 보강플레이트(120)가 설치된 위치에 대응하여 설치하는 제4단계;
가 추가되는 것을 특징으로 하는 CFT기둥용 내부 다이어프램 설치형 조립박스강관의 제작방법.5. The method according to any one of claims 1 to 4,
After the third step,
A fourth step of installing the outer reinforcing plate 150 by welding to the outer side of the completed closed assembly box steel pipe, and installing the reinforcing plate 120 corresponding to the installed position;
Method of manufacturing an inner diaphragm-mounted assembly box steel pipe for a CFT pillar, characterized in that the addition. 제1항 내지 제4항 중 어느 한 항에서,
상기 제2단계는, 보강플레이트(120)로 평플레이트, L형플레이트, T형플레이트 중에서 선택하여 실시하는 것을 특징으로 하는 CFT기둥용 내부 다이어프램 설치형 조립박스강관의 제작방법.5. The method according to any one of claims 1 to 4,
The second step, the method of manufacturing the inner diaphragm-mounted assembly box steel pipe for a CFT pillar, characterized in that the reinforcing plate 120 is selected from the flat plate, L-shaped plate, T-shaped plate.
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KR20180087701A (en) 2017-01-25 2018-08-02 포엠 주식회사 Concrete Filled steel Tube of Aseismic Reinforcement and Method of Aseismic Reinforcement for Existing Building Structure using the Same
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KR20220149983A (en) 2021-05-03 2022-11-10 (주)이지파트너 Joint structure between improved CFT column and prefabricated beam with concrete form
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