KR100555244B1 - The bridge construction method of having used i beam for structure reinforcement and this to which rigidity increased - Google Patents

The bridge construction method of having used i beam for structure reinforcement and this to which rigidity increased Download PDF

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KR100555244B1
KR100555244B1 KR1020050001806A KR20050001806A KR100555244B1 KR 100555244 B1 KR100555244 B1 KR 100555244B1 KR 1020050001806 A KR1020050001806 A KR 1020050001806A KR 20050001806 A KR20050001806 A KR 20050001806A KR 100555244 B1 KR100555244 B1 KR 100555244B1
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flange
reinforcement
view
showing
reinforcing
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KR1020050001806A
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Korean (ko)
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노윤근
박근화
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노윤근
박근화
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/30—Metal

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Abstract

본 발명은 I빔의 상ㆍ하부플랜지 또는 상부플랜지나 하부플랜지의 내측부분에 L형강 또는 강판을 용접 또는 볼트 결합시켜 I빔의 플랜지 두께를 두껍게 하여 I빔의 구조성능을 압축이나 인장에 강하게 한 강성이 증대된 구조 보강용 I빔 및 이의 제작방법을 제공하는데 그 목적이 있다.The present invention welds or bolts an L-shaped steel or a steel plate to the upper and lower flanges of the I beam or the inner portion of the upper flange or the lower flange to thicken the flange thickness of the I beam, thereby increasing the structural performance of the I beam to compression or tension. An object of the present invention is to provide an I-beam for structural reinforcement with increased rigidity and a method of manufacturing the same.

상기한 목적을 달성하기 위한 본 발명에 따른 구조 보강용 I빔은 상ㆍ하부플랜지와 웨브로 구성되는 I빔에 있어서, 상기 I빔의 상부플랜지, 하부플랜지 또는 상ㆍ하부플랜지 내측에 소정의 형상으로 이루어진 보강판이 용접 또는 볼트 결합으로 부착되어, I빔의 강성이 보강됨을 특징으로 한다.Structural reinforcement I-beam according to the present invention for achieving the above object is a predetermined shape inside the upper flange, the lower flange or the upper and lower flange of the I-beam in the I-beam consisting of the upper and lower flanges and the web. Reinforcement plate made of a welded or bolted attachment, characterized in that the rigidity of the I-beam is reinforced.

또한, 상기한 목적을 달성하기 위한 본 발명에 따른 구조 보강용 I빔 제작방법은 상ㆍ하부플랜지와 웨브로 구성되는 I빔의 상부플랜지, 하부플랜지 또는 상ㆍ하부플랜지 내측에 소정의 형상으로 이루어진 보강판을 용접 또는 볼트 결합으로 부착함을 특징으로 한다.In addition, the I-beam manufacturing method for structural reinforcement according to the present invention for achieving the above object is made of a predetermined shape inside the upper flange, lower flange or upper and lower flange of the I-beam consisting of the upper and lower flanges and the web. Reinforcing plate is characterized in that the attachment by welding or bolted.

I빔, 보조I빔, 보강판I beam, auxiliary I beam, reinforcement plate

Description

강성이 증대된 구조 보강용 Ｉ빔 및 이의 제작방법{The bridge construction method of having used I beam for structure reinforcement and this to which rigidity increased} The bridge construction method of having used I beam for structure reinforcement and this to which rigidity increased}             

도 1은 상ㆍ하부플랜지의 내측부분에 강성이 증대된 구조 보강용 I빔을 도시한 사시도,1 is a perspective view showing an I beam for structural reinforcement with increased rigidity on an inner portion of an upper and lower flange;

도 2는 상부플랜지의 내측부분에 강성이 증대된 구조 보강용 I빔을 도시한 사시도,2 is a perspective view showing an I beam for structural reinforcement having increased rigidity in an inner portion of an upper flange;

도 3은 하부플랜지의 내측부분에 강성이 증대된 구조 보강용 I빔을 도시한 사시도,3 is a perspective view showing an I beam for structural reinforcement having increased rigidity in an inner portion of a lower flange;

도 4(a)는 정ㆍ부모멘트부 상ㆍ하부플랜지 모두를 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 4 (a) is a side view showing a state installed in the piers and alternating after reinforcing both the upper and lower flanges of the positive and secondary moments,

도 4(b)는 정ㆍ부모멘트부 구간의 하부플랜지 모두와 부모멘트부 상부플랜지를 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 4 (b) is a side view showing a state installed in the piers and alternating after reinforcing both the lower flange and the upper portion of the parent moment portion of the positive and minor moment portion section,

도 4(c)는 부모멘트부 상부플랜지 보강과 정모멘트부 하부플랜지 부분을 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 4 (c) is a side view showing a state installed in the piers and alternating after reinforcing the parent flange portion upper flange and the constant moment portion lower flange,

도 4(d)는 정ㆍ부모멘트부 상부플랜지만 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 4 (d) is a side view showing a state installed in the pier and alternating after reinforcing only the upper and secondary moment upper flange,

도 4(e)는 정ㆍ부모멘트부의 하부플랜지만 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 4 (e) is a side view showing a state installed in the pier and alternating after reinforcing only the lower flange of the positive and minor moment,

도 4(f) 부모멘트 구간의 상부플랜지만 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 4 (f) is a side view showing a state installed in the pier and alternating after reinforcing only the upper flange of the parent section section,

도 4(g)는 정모멘트 구간의 하부플랜지만 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 4 (g) is a side view showing a state installed in the pier and alternating after reinforcing only the lower flange of the constant moment section,

도 5는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 상ㆍ하부플랜지의 내측부분에 보강판을 설치하고, 에폭시를 충전한 상태를 도시한 단면도,5 is a cross-sectional view showing a state in which a reinforcing plate is installed on the inner portion of the upper and lower flanges of the I-beam for structural reinforcement with increased rigidity according to the present invention and filled with epoxy;

도 6a는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 부등변 보강판을 도시한 단면도,Figure 6a is a cross-sectional view showing an trapezoid reinforcement plate of the I beam for structural reinforcement with increased rigidity according to the present invention,

도 6b는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 등변 보강판을 도시한 단면도,Figure 6b is a cross-sectional view showing an equilateral reinforcement plate of the I beam for structural reinforcement with increased rigidity according to the present invention,

도 6c는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 T형 보강판을 도시한 단면도, Figure 6c is a cross-sectional view showing a T-shaped reinforcement plate of the I beam for structural reinforcement with increased rigidity according to the present invention,

도 6d는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 강판을 도시한 단면도, Figure 6d is a cross-sectional view showing a steel plate of the structural reinforcement I-beam with increased rigidity according to the present invention,

도 7a는 보강판을 상향으로 볼록하게 켐버 가공한 상태를 도시한 측면도1,Figure 7a is a side view showing a state that the camber process convex upward convex plate 1,

도 7b는 보강판을 상향으로 볼록하게 켐버 가공한 상태를 도시한 측면도2,Figure 7b is a side view showing a state that the camber process convex upward convex plate 2,

도 7c는 보강판을 하향으로 오목하게 켐버 가공한 상태를 도시한 측면도1,Figure 7c is a side view showing a state where the camber processing concave downward to the reinforcing plate 1,

도 7d는 보강판을 하향으로 오목하게 켐버 가공한 상태를 도시한 측면도2,Figure 7d is a side view showing a state that the camber processing concave downward to the reinforcing plate 2,

도 8a는 본 발명에 따른 강성이 증대된 I빔의 정ㆍ부모멘트부에 보강판을 설치한 상태를 도시한 측면도,8A is a side view showing a state in which a reinforcing plate is installed in the positive and minor moment portions of an I beam having increased rigidity according to the present invention;

도 8b는 본 발명에 따른 강성이 증대된 I빔의 정모멘트부에 보강판을 상향으로 볼록하게 켐버 가공하여 설치한 상태를 도시한 측면도,8B is a side view illustrating a state in which a reinforcing plate is convexly installed upwardly in a constant moment portion of an I beam having increased rigidity according to the present invention;

도 8c는 본 발명에 따른 강성이 증대된 I빔의 부모멘트부에 보강판을 하향으로 오목하게 켐버가공하여 설치한 상태를 도시한 측면도,8c is a side view showing a state in which a reinforcing plate is recessed downwardly in a parent portion of an I-beam having an increased rigidity according to the present invention by installing a camber process;

도 9a는 정ㆍ부모멘트부 상ㆍ하부플랜지 모두에 켐버 가공한 보강판으로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 9a is a side view showing a state installed in the piers and alternating after reinforcement with a chamfered reinforcement plate on both the upper and the lower moment portion, the lower flange;

도 9b는 정ㆍ부모멘트부 구간의 하부플랜지 모두와 부모멘트부 상부플랜지를 켐버 가공한 보강판으로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 9b is a side view showing a state installed in the piers and alternating after reinforcing both the lower flange and the upper portion of the upper portion of the parent moment portion of the upper flange with a chamfered reinforcement plate;

도 9c는 정ㆍ부모멘트부 하부플랜지와 부모멘트부 상부플랜지만 켐버 가공한 보강판으로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 9c is a side view showing a state installed in the piers and shifts after the reinforcement plate chamfered reinforcement only the lower flange of the positive and secondary moment portion and the upper flange of the parent portion;

도 10은 본 발명에 따른 강성이 증대된 I빔의 상부플랜지의 내측부분과 보조I빔의 하부플랜지를 보강판으로 보강한 후 볼트로 연결하여 겹보를 형성한 상태를 도시한 단면도,10 is a cross-sectional view showing a state in which a double beam is formed by reinforcing the inner portion of the upper flange and the lower flange of the auxiliary I beam of the I-beam with increased stiffness according to the present invention with a reinforcing plate and then connecting them with bolts;

도 11a는 빔의 전구간에 겹보로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도,Figure 11a is a side view showing a state installed in the piers and alternating after reinforcement in the overlap between all the beams,

도 11b는 빔의 내측 지점부만 겹보로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도.Figure 11b is a side view showing a state installed in the pier and alternating after reinforcing only the inner point of the beam with a double beam.

-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing

10 : I빔 10a : 보조I빔10: I beam 10a: auxiliary I beam

12 : 상부플랜지 12a : 상부플랜지12: upper flange 12a: upper flange

14 : 하부플랜지 14a : 하부플랜지14: lower flange 14a: lower flange

16 : 웨브 16a : 웨브16: web 16a: web

20 : 보강판 20a : 보강판20: reinforcement plate 20a: reinforcement plate

22 : 캠버 가공한 보강판 24 : 에폭시주입구22: camber reinforced plate 24: epoxy inlet

26 : 공기배출구 30 : 에폭시26: air outlet 30: epoxy

M : 구조 보강용 I빔 M: I beam for structural reinforcement

본 발명은 강성이 증대된 구조 보강용 I빔 및 이의 제작방법에 관한 것으로, 특히 일반 I빔의 상ㆍ하부플랜지의 내측부분에 보강판을 부착시켜 I빔의 강도를 구조적으로 향상시킨 강성이 증대된 구조 보강용 I빔 및 이의 제작방법에 관한 것이다.The present invention relates to an I beam for structural reinforcement with increased rigidity and a method of manufacturing the same. In particular, a rigidity is structurally improved by attaching a reinforcing plate to an inner portion of upper and lower flanges of a general I beam. The present invention relates to an I beam for structural reinforcement and a method of manufacturing the same.

일반적으로 I빔을 구조적으로 성능을 향상시키기 위해서는 I빔의 측면에 PS강재를 부착한 후, 상기 PS강재에 의한 프리스트레싱이나 하중재하에 의한 프리플렉션(preflextion)으로 구조 강성을 향상시키는 방법이 있으나 제작과정이 복잡하 고, 정밀시공이 수반되어야 하는 단점이 있다.In general, in order to structurally improve the performance of the I-beam, after attaching the PS steel to the side of the I-beam, there is a method of improving the structural rigidity by prestressing by the PS steel or preflexion by the load. The process is complicated, and there is a disadvantage that precision construction must be accompanied.

이에, 본 발명은 상기한 바와 같은 제문제점을 해결하기 위해 안출된 것으로써, I빔의 상ㆍ하부플랜지 또는 상부플랜지나 하부플랜지의 내측부분에 L형강 또는 강판을 용접 또는 볼트 결합시켜 I빔의 플랜지 두께를 두껍게 하여 I빔의 구조성능을 압축이나 인장에 강하게 한 구조 보강용 I빔 및 이의 제작방법을 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the problems described above, by welding or bolting the L-shaped steel or steel plate to the upper and lower flanges or the inner portion of the upper or lower flange of the I-beam of the I-beam It is an object of the present invention to provide a structural reinforcing I-beam and a method of manufacturing the same, in which the thickness of the flange is increased to make the structural performance of the I-beam strong in compression or tension.

또한, 강성이 다르거나 같은 2개의 I빔을 상하로 연결하여 제작하되, 양단부 및 부모멘트부반 상하로 하거나 또는 양단부 및 정ㆍ부모멘트부 모든 구간을 상하로 제작한 후, 상기 I빔의 상ㆍ하부플랜지에 L형강 또는 강판을 용접 또는 볼트 결합시켜 I빔의 플랜지 두께를 두껍게 하여 I빔의 구조성능을 압축이나 인장에 강하게 한 구조 보강용 I빔 및 이의 제작방법을 제공하는데 그 목적이 있다. In addition, two I beams of different stiffness or the same are produced by connecting them up and down, and both ends and the parent part half up and down, or both ends and the positive and minor moments are all made up and down. It is an object of the present invention to provide a structural reinforcing I-beam and a method of manufacturing the same, in which a flange thickness of the I-beam is made thick by welding or bolting an L-shaped steel or a steel plate to a lower flange, thereby increasing the structural performance of the I-beam.

상기한 목적을 달성하기 위한 본 발명에 따른 구조 보강용 I빔은 상ㆍ하부플랜지와 웨브로 구성되는 I빔에 있어서, 상기 I빔의 상부플랜지, 하부플랜지 또는 상ㆍ하부플랜지 내측에 소정의 형상으로 이루어진 보강판이 용접 또는 볼트 결합으로 부착되어, I빔의 강성이 보강됨을 특징으로 한다.Structural reinforcement I-beam according to the present invention for achieving the above object is a predetermined shape inside the upper flange, the lower flange or the upper and lower flange of the I-beam in the I-beam consisting of the upper and lower flanges and the web. Reinforcement plate made of a welded or bolted attachment, characterized in that the rigidity of the I-beam is reinforced.

또한, 상기한 목적을 달성하기 위한 본 발명에 따른 구조 보강용 I빔 제작방법은 상ㆍ하부플랜지와 웨브로 구성되는 I빔의 상부플랜지, 하부플랜지 또는 상ㆍ하부플랜지 내측에 소정의 형상으로 이루어진 보강판을 용접 또는 볼트 결합으로 부착함을 특징으로 한다.In addition, the I-beam manufacturing method for structural reinforcement according to the present invention for achieving the above object is made of a predetermined shape inside the upper flange, lower flange or upper and lower flange of the I-beam consisting of the upper and lower flanges and the web. Reinforcing plate is characterized in that the attachment by welding or bolted.

이하, 본 발명을 첨부한 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 1은 상ㆍ하부플랜지의 내측부분에 강성이 증대된 구조 보강용 I빔을 도시한 사시도이며, 도 2는 상부플랜지의 내측부분에 강성이 증대된 구조 보강용 I빔을 도시한 사시도이며, 도 3은 하부플랜지의 내측부분에 강성이 증대된 구조 보강용 I빔을 도시한 사시도이며, 도 4(a)는 정ㆍ부모멘트부 상ㆍ하부플랜지 모두를 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 4(b)는 정ㆍ부모멘트부 구간의 하부플랜지 모두와 부모멘트부 상부플랜지를 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 4(c)는 부모멘트부 상부플랜지 보강과 정모멘트부 하부플랜지 부분을 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 4(d)는 정ㆍ부모멘트부 상부플랜지만 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 4(e)는 정ㆍ부모멘트부의 하부플랜지만 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 4(f) 부모멘트 구간의 상부플랜지만 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 4(g)는 정모멘트 구간의 하부플랜지만 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이다.1 is a perspective view showing an I-beam for structural reinforcement with increased rigidity in the inner portion of the upper and lower flanges, Figure 2 is a perspective view showing an I-beam for structural reinforcement with increased rigidity in the inner portion of the upper flange, 3 is a perspective view showing an I beam for structural reinforcement having increased rigidity in the inner portion of the lower flange, Figure 4 (a) is a state installed in the piers and alternating after reinforcing both the upper and lower flanges of the positive and secondary moment portion Figure 4 (b) is a side view showing a state installed in the piers and alternating after reinforcing both the lower flange and the upper portion of the parent moment portion of the positive and secondary moment portion section, Figure 4 (c) After the reinforcement of the upper flange of the parent part portion and the lower flange portion of the positive moment portion is a side view showing the state installed in the piers and shifts, Figure 4 (d) is a reinforcement only in the upper flange of the positive and secondary moment portion, Side view showing the installed state Figure 4 (e) is a side view showing the state installed in the pier and alternating after strengthening only the lower flange of the positive and secondary moments, Figure 4 (f) is installed in the pier and alternating after reinforcing only the upper flange of the parent section Figure 4 is a side view showing a state, Figure 4 (g) is a side view showing a state installed in the piers and the shift after reinforcing only the lower flange of the constant moment section.

이들 도면에 도시된 바와 같이, 본 발명에 따른 구조 보강용 I빔(M)은 상ㆍ하부플랜지(12, 14)와 웨브(16)로 구성되는 I빔(10)과; 상기 I빔(10)의 상부플랜지(12), 하부플랜지(14) 또는 상ㆍ하부플랜지(12, 14) 내측에 용접 또는 볼트 결합되며, 소정의 형상으로 이루어진 보강판(20)으로 구성된다.As shown in these figures, the structural reinforcing I-beam M according to the present invention includes an I-beam 10 composed of upper and lower flanges 12 and 14 and a web 16; The I-beam 10 is welded or bolted to the inside of the upper flange 12, the lower flange 14 or the upper and lower flanges 12, 14, and consists of a reinforcement plate 20 having a predetermined shape.

즉, 본 발명에 따른 구조 보강용 I빔(M)은 I빔(10)과 보강판(20)이 유기적으로 결합되어 이루어진 구조이다.That is, the I beam M for structural reinforcement according to the present invention has a structure in which the I beam 10 and the reinforcement plate 20 are organically combined.

여기서, 상기 I빔(10)은 강괴를 가열하여 소정의 I형 단면형상으로 압연한 강재나 강판으로 I형상으로 제작한 빔으로 교량 등의 토목 구조물에 많이 사용된다.Here, the I beam 10 is a steel or steel sheet rolled in a predetermined I-shaped cross-section by heating the ingot, and is made of I-shaped beam, which is frequently used in civil structures such as bridges.

상기한 바와 같은 구성으로 이루어진 본 발명에 따른 구조 보강용 I빔(M) 제작은 상ㆍ하부플랜지(12, 14)와 웨브(16)로 구성되는 I빔(10)의 상부플랜지(12) 내측에 소정의 형상으로 이루어진 보강판(20)을 용접 또는 볼트 결합으로 부착하여 제작한다.Fabrication of the I-beam (M) for structural reinforcement according to the present invention having the configuration as described above is the inside of the upper flange 12 of the I-beam 10 consisting of upper and lower flanges (12, 14) and the web (16) It is produced by attaching a reinforcement plate 20 having a predetermined shape to the welding or bolted to.

도 5는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 상ㆍ하부플랜지의 내측부분에 보강판을 설치하고, 에폭시를 충전한 상태를 도시한 단면도이다.5 is a cross-sectional view showing a state in which a reinforcing plate is installed on an inner portion of upper and lower flanges of an I beam for structural reinforcement having increased rigidity according to the present invention and filled with epoxy.

이 도면에 도시된 바와 같이, 상기 보강판(20)에는 소정의 직경을 갖는 에폭시주입구(24)와 공기배출구(26)를 필요에 따라 천공 형성할 수도 있음을 밝혀둔다.As shown in this figure, the reinforcing plate 20, it is noted that the epoxy inlet 24 and the air outlet 26 having a predetermined diameter may be formed as perforated as necessary.

이와 같은 보강판(20)은 I빔(10)과의 결합 후, 그 결합부위를 에폭시주입구(24)를 통해 에폭시(30)를 주입시켜 긴밀하게 접착시켜 I빔(10)과 보강판(20) 사이가 들뜨지 않도록 하기 위함이다.Such a reinforcing plate 20 is bonded to the I-beam 10, and then the bonding portion is intimately bonded by injecting epoxy 30 through the epoxy inlet 24 to the I-beam 10 and the reinforcing plate 20 ) So that it does not float.

상기한 바와 같은 구성으로 이루어진 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 제작은 상ㆍ하부플랜지(12, 14)와 웨브(16)로 구성되는 I빔(10)의 하부플랜지(14) 외측에 상기 I빔(10)에 비해 높이가 낮으며 상ㆍ하부플랜지(12a, 14a)와 웨브(16a)로 구성되는 보조I빔(10a)을 용접 또는 볼트 결합하며, 상기 I빔(10) 의 상부플랜지(12)와 보조I빔(10a)의 하부플랜지(14, 14a) 내측에 에폭시주입구(24)와 공기배출구(26)가 천공 형성된 보강판(20, 20a)을 용접 또는 볼트로 부착하며, 상기 에폭시주입구(24)를 통해 에폭시(30)를 주입함과 동시에 공기배출구(26)를 통해 확인하면서 I빔(10)과 보강판(20) 및 보조I빔(10a)과 보강판(20a) 사이를 에폭시(30)로 긴밀하게 밀착시켜 제작한다.The fabrication of the I-beam for structural reinforcement with increased rigidity according to the present invention having the above-described configuration includes the lower flange 14 of the I-beam 10 composed of the upper and lower flanges 12 and 14 and the web 16. Welding or bolting an auxiliary I beam 10a having a lower height than the I beam 10 and consisting of upper and lower flanges 12a and 14a and a web 16a to the outside. Welding or bolting the reinforcing plates 20 and 20a formed with the epoxy inlet 24 and the air outlet 26 perforated inside the upper flange 12 of the upper flange 12 and the lower flanges 14 and 14a of the auxiliary I beam 10a. While injecting the epoxy 30 through the epoxy inlet 24 and confirming through the air outlet 26, the I beam 10 and the reinforcing plate 20 and the auxiliary I beam 10a and the reinforcing plate It is produced by closely bonding between the 20a with the epoxy 30.

도 6a는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 부등변 보강판을 도시한 단면도이며, 도 6b는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 등변 보강판을 도시한 단면도이며, 도 6c는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 T형 보강판을 도시한 단면도이며, 도 6d는 본 발명에 따른 강성이 증대된 구조 보강용 I빔의 강판을 도시한 단면도이다.Figure 6a is a cross-sectional view showing an isosceles reinforcement plate of the structural reinforcement I beam with increased rigidity according to the present invention, Figure 6b is a cross-sectional view showing an isosceles reinforcement plate of the structural reinforcement I beam with increased rigidity according to the present invention. 6C is a cross-sectional view showing a T-shaped reinforcing plate of the structural reinforcing I beam according to the present invention, and FIG. 6D is a steel plate of the structural reinforcing I beam according to the present invention. It is a cross section.

이들 도면에 도시된 바와 같이, 상기 보강판(20)은 강괴를 가열하여 소정의 L형강 또는 강판의 단면형상으로 압연한 강재로서, 등변 L형강, 부등변 L형강, T형강, 강판 중 어느 하나의 형상으로 이루어진 것을 선택하여 사용한다.As shown in these drawings, the reinforcing plate 20 is a steel material which is heated ingot and rolled into a predetermined L-shaped steel or a cross-sectional shape of a steel sheet, and has any one of an equilateral L-shaped steel, an isosceles-shaped L-shaped steel, a T-shaped steel, and a steel sheet. Select and use what consists of shape.

즉, 상기한 보강판(20)을 L형강 또는 강판의 단면형상으로 I빔(10)의 상부플랜지(12), 하부플랜지(14) 및 상ㆍ하부플랜지(12, 14) 내측에 용접이나 볼트결합으로 부착시켜 I빔(10)의 플랜지(12, 14) 두께를 두껍게 보강하여 I빔(10)의 구조성능을 압축이나 인장에 강하도록 하기 위함이다.That is, the reinforcing plate 20 is welded or bolted inside the upper flange 12, the lower flange 14, and the upper and lower flanges 12 and 14 of the I beam 10 in the cross-sectional shape of the L-shaped steel or steel sheet. This is to reinforce the thickness of the flanges 12 and 14 of the I beam 10 by attaching them in a combination so that the structural performance of the I beam 10 is strong against compression or tension.

도 8a는 본 발명에 따른 강성이 증대된 I빔의 정ㆍ부모멘트부에 보강판을 설치한 상태를 도시한 측면도이며, 도 8b는 본 발명에 따른 강성이 증대된 I빔의 정모멘트부에 보강판을 상향으로 볼록하게 켐버 가공하여 설치한 상태를 도시한 측면 도이며, 도 8c는 본 발명에 따른 강성이 증대된 I빔의 부모멘트부에 보강판을 하향으로 오목하게 켐버가공하여 설치한 상태를 도시한 측면도이며, 도 9a는 정ㆍ부모멘트부 상ㆍ하부플랜지 모두에 켐버 가공한 보강판으로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 9b는 정ㆍ부모멘트부 구간의 하부플랜지 모두와 부모멘트부 상부플랜지를 켐버 가공한 보강판으로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 9c는 정ㆍ부모멘트부 하부플랜지와 부모멘트부 상부플랜지만 켐버 가공한 보강판으로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이다.8A is a side view illustrating a state in which a reinforcing plate is installed in the positive and negative moments of the I beam having increased rigidity according to the present invention, and FIG. 8B is a positive moment of the I beam having increased rigidity according to the present invention. 8 is a side view illustrating a state in which the reinforcement plate is installed by convexly upwardly convex processing, and FIG. 8C is a view in which the reinforcement plate is concave downwardly installed in a parent cemented portion of the I beam having increased rigidity according to the present invention. Figure 9a is a side view showing a state, Figure 9a is a side view showing a state installed in the piers and the alternating after reinforced with a chamfered reinforcement plate on both the upper and lower flanges of the positive and secondary moments, Figure 9b Side view showing the state where the lower flange of the section and the upper portion of the parent portion is installed on the piers and shifts after reinforcement with a camber-treated reinforcement plate. Chem Then reinforced with a reinforcing plate processed is a side view showing a state that the angle of intersection and alternate.

이들 도면에 도시된 바와 같이, 상기 보강판(20)은 필요에 따라 사전에 보강판(20)을 상향으로 볼록하게 또는 하향으로 오목하게 프리스트레싱을 부여하여 소정의 높이로 캠버(22)를 형성시켜서, 보강판(20)이 부착된 I빔(10)에 정ㆍ부모멘트부에 재하되는 하중의 방향에 저항하도록 한다.As shown in these figures, the reinforcing plate 20 is provided with prestressing in advance to convex or concave downward in order to form the camber 22 at a predetermined height in advance. The I beam 10 to which the reinforcing plate 20 is attached is resisted in the direction of the load on the positive and minor moments.

즉, 상기 보강판(20, 20a)은 L형강 또는 강판으로 이루어지되, 사전에 상향 또는 하향으로 프리스트레싱을 부여하여 소정의 높이로 캠버(22)를 형성시켜 구조물의 정모멘트부에 해당되는 I빔(10)의 상ㆍ하부플랜지(12) 내측부분에 보강판(20, 20a)을 볼록형태로 부착하고, 부모멘트부에 해당되는 I빔(10)의 상ㆍ하부플랜지(14) 내측부분에 보강판(20, 20a)을 오목형태로 부착하여, 구조물의 정ㆍ부모멘트부에 재하되는 하중의 방향에 저항하도록 제작한다.That is, the reinforcing plate (20, 20a) is made of L-shaped steel or steel sheet, I pre-stressing up or down in advance to form a camber 22 to a predetermined height by the pre-stressing I beam corresponding to the positive moment portion of the structure Reinforcing plates 20 and 20a are attached to the upper and lower flanges 12 inside the convex shape of the upper and lower flanges 12, and to the inner and upper flanges 14 of the I beam 10 corresponding to the parent cement portions. The reinforcing plates 20, 20a are attached in a concave shape, and are manufactured so as to resist the direction of load on the positive and minor moments of the structure.

도 10은 본 발명에 따른 강성이 증대된 I빔의 상부플랜지의 내측부분과 보조I빔의 하부플랜지를 보강판으로 보강한 후 볼트로 연결하여 겹보를 형성한 상태를 도시한 단면도이며, 도 11a는 빔의 전구간에 겹보로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이며, 도 11b는 빔의 내측 지점부만 겹보로 보강한 후 교각 및 교대에 설치된 상태를 도시한 측면도이다.10 is a cross-sectional view illustrating a state in which an inner portion of an upper flange of an I beam having increased rigidity and a lower flange of an auxiliary I beam are reinforced with a reinforcing plate and then connected by bolts to form a double beam according to the present invention, and FIG. 11A. Is a side view showing a state installed in the piers and alternating after the reinforcement of the beam between all beams, Figure 11b is a side view showing a state installed in the piers and alternating after reinforcing only the inner point of the beam with a double beam.

이들 도면에 도시된 바와 같이, I빔(10)의 하부플랜지(14) 외측에 별도의 보강판(20a)이 설치된 보조I빔(10a)이 용접 또는 볼트 결합시켜, 하부플랜지(14)의 상하로 I빔(10)과 보조I빔(10a)이 연결된 겹보형태로 이루어진다.As shown in these figures, the auxiliary I-beam 10a provided with a separate reinforcing plate 20a outside the lower flange 14 of the I-beam 10 is welded or bolted to the upper and lower portions of the lower flange 14. The furnace I beam 10 and the auxiliary I beam 10a are formed in a double beam shape.

즉, 상기 보조I빔(10a)은 상기 I빔(10)에 비해 높이가 낮을 뿐 기타 상ㆍ하부플랜지(12a, 14a)와 웨브(16a)로 이루어진 점에서는 I빔(10)과 동일함을 밝혀둔다.That is, the auxiliary I beam 10a is the same as the I beam 10 in that the height of the auxiliary I beam 10 is lower than that of the I beam 10 but is composed of the other upper and lower flanges 12a and 14a and the web 16a. Reveal.

여기서, 상기 보조I빔(10a)도 상술한 바와 같이 I빔(10)의 내측에 보강판(20)이 부착되는 것처럼, 상기 보조I빔(10a)의 하부플랜지(14a) 내측에 용접 또는 볼트 결합되며, 소정의 단면형상으로 이루어진 보강판(20a)이 부착된다.Here, the auxiliary I-beam 10a is welded or bolted inside the lower flange 14a of the auxiliary I-beam 10a, as the reinforcing plate 20 is attached to the inside of the I-beam 10 as described above. The reinforcing plate 20a having a predetermined cross-sectional shape is attached thereto.

이와 같이 강성이 서로 다르거나 동일한 2개의 I빔(10, 10a) 즉 I빔(10과 보조I빔(10a)을 상하로 연결한 겹보형태로 구조 보강용 I빔(M)을 형성하되, 상기 구조 보강용 I빔(M)내에 보강판(20, 20a)을 용접 또는 볼트결합으로 부착시켜 강성을 증대시킬 수 있다.As described above, two I beams 10 and 10a having different or identical stiffnesses, that is, an I beam M for structural reinforcement are formed in a double beam shape in which the I beams 10 and the auxiliary I beams 10a are connected up and down. The rigidity can be increased by attaching the reinforcing plates 20 and 20a to the I beam M for structural reinforcement by welding or bolting.

이 때, 상기한 구조 보강용 I빔(M)을 구조물의 양단부 및 부모멘트부만 겹보형태로 하거나 또는 양단부 및 정ㆍ부모멘트 모든 구간에 걸쳐 겹보형태로 형성할 수도 있음을 밝혀둔다.At this time, it is to be noted that the above-described structural reinforcing I beam M may be formed in the form of a double beam only at both ends and the parent part of the structure or in the form of a double beam over all sections of the both ends and the positive and negative moments.

이 경우 양단부 및 부모멘트부만 겹보로 할 경우 양단부는 일반 I빔으로 겹 보로 할 수도 있음을 밝혀둔다.In this case, if only the both ends and the parent-ment portion is to be overlapped, it is noted that both ends may be overlapped with a general I beam.

특히, 상기 보강판(20, 20a)을 I빔(10)과 보조I빔(10a)에 볼트 또는 용접으로 부착하되, 교량의 정모멘트부, 부모멘트부로 구분 제작하여 I빔(10)의 상부플랜지(12, 12a)와 보조I빔(10a)의 하부플랜지(14, 14a)에 보강판(20, 20a)을 용접 또는 볼트 결합하여 제작한다. In particular, the reinforcing plate (20, 20a) is attached to the I beam 10 and the auxiliary I beam (10a) by a bolt or welding, the bridge is produced by separating the regular moment portion, the parent portion portion of the upper portion of the I beam 10 The reinforcing plates 20 and 20a are welded or bolted to the flanges 12 and 12a and the lower flanges 14 and 14a of the auxiliary I beam 10a.

이상에서 설명한 바와 같이, 본 발명에 따른 강성이 증대된 구조 보강용 I빔 및 이의 제작방법은 I빔의 상ㆍ하부플랜지 또는 상부플랜지나 하부플랜지 내측부분에 L형강 또는 강판으로 이루어진 보강판을 용접 또는 볼트 결합시켜 I빔의 플랜지 두께를 두껍게 하여 I빔의 구조성능을 향상시켜 압축이나 인장에 강한 이점이 있다. As described above, the I-beam for structural reinforcement with increased stiffness according to the present invention and a method of manufacturing the same are welded reinforcement plates made of L-shaped steel or steel plate to the upper and lower flanges or the upper and lower flanges of the I beam. Alternatively, the flange thickness of the I-beams is increased by bolting to improve the structural performance of the I-beams, and thus there is a strong advantage in compression or tension.

Claims (10)

삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 상ㆍ하부플랜지(12, 14)와 웨브(16)로 구성되는 I빔(10)의 상부플랜지(12), 하부플랜지(14) 또는 상ㆍ하부플랜지(12, 14) 내측에 소정의 형상으로 이루어진 보강판(20)을 용접 또는 볼트 결합으로 부착하여 제작하는 강성이 증대된 구조 보강용 I빔 제작방법에 있어서,In the predetermined shape inside the upper flange 12, the lower flange 14, or the upper and lower flanges 12, 14 of the I-beam 10 composed of the upper and lower flanges 12, 14 and the web 16. In the method of manufacturing an I-beam for structural reinforcement having increased rigidity by attaching the reinforcing plate 20 made by welding or bolting, 상기 보강판(20, 20a)은 L형강 또는 강판으로 이루어지되, 사전에 상향 또는 하향으로 프리스트레싱을 부여하여 소정의 높이로 캠버(22)를 형성하여 구조물의 정모멘트부에는 I빔(10)의 하부플랜지 내측부분에 보강판(20, 20a)을 볼록형태로 부착하고, 부모멘트부에는 I빔(10)의 상부플랜지 내측과 보조I빔(10a)의 하부플랜지(12a) 내측부분에 보강판(20, 20a)을 오목형태로 부착하여, 구조물의 정ㆍ부모멘트부에 재하되는 하중의 방향에 저항하도록 제작함을 특징으로 하는 구조 보강용 I빔 제작방법. The reinforcing plates 20 and 20a may be made of L-shaped steel or steel sheet, and the camber 22 is formed at a predetermined height by giving prestressing upward or downward in advance so that the positive moment of the structure may include the I beam 10. Reinforcement plates 20 and 20a are attached to the inner side of the lower flange in a convex shape, and the reinforcement plate is attached to the inner side of the upper flange of the I beam 10 and the inner side of the lower flange 12a of the auxiliary I beam 10a to the parent portion. (20, 20a) is attached in a concave shape and fabricated so as to resist the direction of load on the positive and minor moments of the structure. 삭제delete
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