KR100836679B1 - I-beam method of fabrication for structure prestress was introduced - Google Patents

I-beam method of fabrication for structure prestress was introduced Download PDF

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KR100836679B1
KR100836679B1 KR1020080022839A KR20080022839A KR100836679B1 KR 100836679 B1 KR100836679 B1 KR 100836679B1 KR 1020080022839 A KR1020080022839 A KR 1020080022839A KR 20080022839 A KR20080022839 A KR 20080022839A KR 100836679 B1 KR100836679 B1 KR 100836679B1
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South Korea
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beam segment
welding
strength steel
segment
height
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KR1020080022839A
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Korean (ko)
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노윤근
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노윤근
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/10—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal prestressed
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

An I-beam manufacturing method for a prestressed structure is provided to reduce I-beam segment manufacturing time by introducing a free-flexion load, prestressing the I-beam segments, and welding the I-beam segments at a height adjustable composite welding setting board. An I-beam(B) manufacturing method for a prestressed structure comprises the steps of; forming a member connecting part of I-beam segments(10); attaching a high strength steel plate(18) to an upper or lower flange temporarily; forming the high strength steel plate at member attaching part forming parts(20) of the I-beam segments; welding inner and outer parts of the bonded part of the high tension bolts temperately; removing free-flexion load loaded on the I-beam segments; placing the I-beam segments on a composite height adjustable welded setting board(26) and welding four sides of the I-beam segments and the high strength steel plate; and removing the high tension bolts. The setting board has U-shaped steel brackets(30) on an upper flange of a horizontal I beam(10a) and is assembled at the upper flange of the horizontal I beam and at the U-shaped steel bracket by bolts(32) and nuts(34).

Description

프리스트레스가 도입된 구조용 아이빔 제작방법{I-beam method of fabrication for structure prestress was introduced}I-beam method of fabrication for structure prestress was introduced}

본 발명은 프리스트레스가 도입된 구조용 I빔 제작방법에 관한 것이다.The present invention relates to a method for manufacturing a structural I beam in which prestress is introduced.

일반적으로 I빔을 이용하여 건축물 골조나 주차장 골조, 기타 구조용 골조를 제작함에 있어서, 기존의 압연강재 I빔이나 공장제작 I빔을 단순가공하여 사용하고 있는 실정이다.In general, in the fabrication of building frame, parking lot frame, and other structural frame using I beam, the existing rolled steel I beam or factory manufactured I beam is simply used.

여기서, 상기 압연강재 I빔이나 공장제작 I빔의 경간장을 넓히려면 I빔의 형고가 높은 것을 사용해야 하며, I빔의 형고가 낮으면 경간장을 넓힐 수가 없어 기둥이 많아지고 기둥이 많아지면 I빔 골조의 활용성이 떨어지고, 설치공사비가 증가하는 문제점이 있다.Here, in order to widen the span of the rolled steel I beam or the factory-manufactured I beam, the beam height of the I beam should be used. If the beam height is low, the beam length cannot be widened. There is a problem that the utility of the fall, the installation cost increases.

이에, 상기한 바와 같은 제문제점을 해결하기 위해 최근에는 압연강재 I빔이나 공장제작 I빔에 고강도 강판을 덧대어 프리스트레스를 가하여 강성을 높인 I빔의 사용으로 기둥 사이의 경간장을 넓히는 방법이 사용되고 있다. Therefore, in order to solve the problems described above, a method of widening the span between pillars by using a high-strength steel plate and prestressing to increase the rigidity by applying a pre-stressed steel sheet to a rolled steel I beam or a factory-made I beam has been used. .

이와 같은 프리스트레스를 가하여 강성을 높인 I빔과 고강도 강판이 프리플랙션하중이 재하된 상태에서 고장력 볼트 또는 용접으로 합성 부착되는 관계로 용 접 후, 완전합성을 위한 용접열 냉각시간의 소요로 장시간 프리플랙션하중을 재하한 상태로 있어야 하며 단시간 내에 I빔의 대량 제작에는 많은 수의 제작대가 소요되어 초기투자비 증대로 비경제적인 요소가 있다.Since I beam and high strength steel plate with high stiffness applied by such prestress are bonded by high tension bolt or welding under the condition of pre-fraction load, it is free for long time due to the welding heat cooling time for complete synthesis after welding. The traction load must be loaded and a large number of production stages are required for mass production of I beams in a short time, which is an uneconomical factor due to increased initial investment.

이에, 본 발명은 상기한 바와 같은 제문제점을 해결하기 위해 안출된 것으로서, 일반적인 제작대에서 프리플랙션하중을 도입하여 I빔 세그먼트에 프리스트레스를 도입하고, I빔 세그먼트와 고강도 강판과의 합성용접은 별도의 높이조절이 가능한 합성용접 거치대에서 다수의 I빔 세그먼트를 용접만 하므로, I빔 세그먼트의 제작효율을 증대시킬 수 있도록 한 프리스트레스가 도입된 구조용 I빔 제작방법을 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the problems described above, by introducing a pre-fraction load in a general fabrication table to introduce a pre-stress to the I-beam segment, the composite welding of the I-beam segment and the high strength steel sheet It is an object of the present invention to provide a structural I-beam fabrication method in which prestress is introduced to increase the fabrication efficiency of the I-beam segment, because only a plurality of I-beam segments are welded in a synthetic welding cradle having a separate height adjustment.

상기한 목적을 달성하기 위한 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작방법은 I빔 세그먼트를 캠버 제작 후 양단부 I빔 세그먼트 부재연결부를 천공하는 단계; I빔 세그먼트의 상하부 플랜지 또는 하부플랜지에 고강도 강판을 가부착후 다지점으로 프리플랙션하중을 재하하는 단계; 다지점 프리플랙션하중 재하후 I빔 세그먼트와 고강도 강판간 양단부로 밀림조정이 완료된 후, I빔 세그먼트 양단부에 기천공된 부재접합부 천공부에 맞추어 고강도 강판을 천공하는 단계; I빔 세그먼트와 고강도 강판을 고장력 볼트로 완전체결하고, 볼트접합부 내외부분을 일정간격으로 가용접하는 단계; I빔 세그먼트에 재하된 프리플랙션하중을 제거하는 단계; I빔 세그먼트를 높이조절이 가능한 합성용접 거치대에 다수 개 거치하고, I빔 세그먼트와 고강도 강판 접합면을 사변용접하는 단계; I빔 세그먼트와 고강도 강판의 용접부위의 용접열이 냉각된 후 I빔 세그먼트 양단부에 체결된 고장력 볼트를 해체하는 단계로 이루어짐을 특징으로 한다.According to an aspect of the present invention, there is provided a method for fabricating a structural I-beam in which a prestress is introduced, the method comprising: drilling the I-beam segment member connecting portions at both ends after fabricating the I-beam segment; Loading the pre-fraction load to multiple points after temporarily attaching the high strength steel sheet to the upper and lower flanges or lower flanges of the I beam segment; Drilling of the high strength steel sheet in accordance with the member joint perforations perforated at both ends of the I beam segment after the adjustment of both ends between the I-beam segment and the high-strength steel sheet is completed after the multi-point prefraction load is loaded; Completely tightening the I beam segment and the high strength steel plate with high tension bolts, and welding the inner and outer portions of the bolted joint at predetermined intervals; Removing the prefraction load loaded on the I beam segment; Mounting a plurality of I beam segments on a height adjustable synthetic welding holder, and quadrature welding the I beam segments and the high strength steel plate joint surface; After the heat of welding of the welded portion of the I-beam segment and the high-strength steel sheet is cooled, it is characterized in that the step of dismantling the high tension bolt fastened to both ends of the I-beam segment.

이상에서 설명한 바와 같이, 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작방법은 제작대에서는 프리플랙션하중을 도입하여 I빔 세그먼트에 프리스트레스를 도입하고, I빔 세그먼트와 고강도 강판과의 합성용접은 별도의 높이조절이 가능한 합성용접 거치대에서 다수의 I빔 세그먼트를 편리한 자세로 용접만 하므로, I빔 세그먼트의 제작효율을 증대시킬 수 있으며, 또한 제작에 투입되는 인력과 장비 및 시간을 절약하고 분업화하여 보다 저렴하고 효율이 증대된 구조용 I빔을 대량으로 제작할 수 있는 장점이 있다. As described above, the structural I-beam manufacturing method in which the prestress is introduced according to the present invention introduces pre-stress into the I-beam segment by introducing a pre-fractional load in the fabrication table, and the synthetic welding of the I-beam segment and the high-strength steel sheet The composite welding cradle with separate height can be welded in a convenient posture, so that the I beam segment can be manufactured more efficiently. In addition, it saves manpower, equipment and time, and puts labor into production. There is an advantage that can be produced in a large amount of cheaper and more efficient structural I beam.

도 1a 내지 1h는 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작과정을 도시한 공정도이다.1A to 1H are process diagrams illustrating a process for fabricating a structural I-beam into which prestress is introduced according to the present invention.

이들 도면에 도시된 바와 같이, 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작방법은 I빔 세그먼트(10)를 캠버 제작 후, 양단부 I빔 세그먼트(10) 부재연결부(12)를 천공하는 단계(Ⅰ); As shown in these drawings, the pre-stressed structural I-beam manufacturing method according to the present invention, after fabricating the I-beam segment 10, the step of drilling the member connecting portion 12 of the I-beam segment 10 at both ends ( I);

I빔 세그먼트(10)의 상ㆍ하부플랜지(14, 16) 또는 하부플랜지(16)에 고강도 강판(18)을 가부착 후, 다지점으로 프리플랙션하중(P)을 재하하는 단계(Ⅱ); After attaching the high strength steel plate 18 to the upper and lower flanges 14 and 16 or the lower flange 16 of the I beam segment 10, and loading the pre-fraction load P to multiple points (II). ;

다지점 프리플랙션하중(P) 재하 후, I빔 세그먼트(10)와 고강도 강판(18)간 양단부로 밀림조정이 완료된 후, I빔 세그먼트(10) 양단부에 기천공된 I빔 세그먼트 부재접합부 천공부(20)에 맞추어 고강도 강판(18)을 천공하는 단계(Ⅲ); After the multi-point pre-fraction load (P) is loaded, the I-beam segment member joining fabric fabricated in both ends of the I-beam segment 10 is completed after the push adjustment is completed at both ends between the I-beam segment 10 and the high-strength steel sheet 18. Perforating the high strength steel plate 18 in accordance with the study 20 (III);

I빔 세그먼트(10)와 고강도 강판(18)을 고장력 볼트(22)로 완전 체결하고, 볼트접합부 내외부분을 일정간격으로 가용접(24)하는 단계(Ⅳ); Completely tightening the I beam segment 10 and the high strength steel plate 18 with the high tension bolts 22, and temporarily welding the inner and outer portions of the bolted joint 24 at regular intervals (IV);

I빔 세그먼트(10)에 재하된 프리플랙션하중(P)을 제거하는 단계(Ⅴ); Removing the pre-fraction load P loaded on the I-beam segment 10 (V);

I빔 세그먼트(10)를 높이조절이 가능한 합성용접 거치대(26)에 다수 개 거치하고, I빔 세그먼트(10)와 고강도 강판(18) 접합면을 사변용접(28)하는 단계(Ⅵ); Mounting a plurality of I beam segments 10 on a synthetic welding holder 26 which can be adjusted in height, and quadrature welding 28 the I beam segment 10 and the high strength steel plate 18 to a bonding surface (VI);

I빔 세그먼트(10)와 고강도 강판(18)의 용접부위의 용접열이 냉각된 후 I빔 세그먼트(10) 양단부에 체결된 고장력 볼트(22)를 해체하는 단계(Ⅶ)로 이루어진다.After the welding heat of the welded portion of the I beam segment 10 and the high strength steel plate 18 is cooled, the high tension bolt 22 fastened to both ends of the I beam segment 10 is removed.

여기서, 상기 높이조절이 가능한 합성용접 거치대(26)는 도 2a 및 도 2b에 도시된 바와 같이, 가로방향 I빔(10a) 상부플랜지(14)에 U자형 강재브라켓(30)을 일정간격으로 가로방향으로 다수 개 설치하고, 볼트(32)와 너트(34)로 가로방향 I빔(10a) 상부플랜지(14)와 U자형 강재브라켓(30) 하면에 높이조절이 가능한 유간이 확보되도록 조립한다.Here, the height adjustable synthetic welding cradle 26 is, as shown in Figures 2a and 2b, the horizontal I-beam (10a) the upper flange 14 of the U-shaped steel bracket 30 horizontally at a predetermined interval It is installed in a plurality of directions, and the bolt 32 and the nut 34 is assembled so as to secure a clearance adjustable height on the lower surface of the upper flange 14 and the U-shaped steel bracket (30) in the horizontal I beam (10a).

또한, 상기 높이조절이 가능한 합성용접 거치대(26)에서 I빔 세그먼트(10)의 거치용접은 도 2a 및 도 2b에 도시된 바와 같이, 가로방향으로 놓인 한 조의 높이조절이 가능한 합성용접 거치대(26)에 I빔 세그먼트(10)의 중앙부를 위치시키고 양단부가 자중에 의해 처지도록 거치하거나, 또는 가로방향으로 놓인 두 조의 높이조 절이 가능한 합성용접 거치대(26)에 I빔 세그먼트(10)의 각 양단부를 위치시켜 중앙부가 자중에 의해 처지도록 하여 완전 사변용접(28) 한다.In addition, the mounting welding of the I-beam segment 10 in the height-adjustable synthetic welding cradle 26 is a composite welding cradle 26 capable of adjusting the height of a set of horizontally placed as shown in Figures 2a and 2b. Each end of the I beam segment 10 in a synthetic welding cradle 26 which is positioned at the center of the I beam segment 10 and is mounted so that both ends are sag by its own weight, or in which two sets of height adjustments are placed horizontally. Place the center so that the center sag due to its own weight.

그리고 상기 높이조절이 가능한 합성용접 거치대(26)의 U자형 강재브라켓(30)의 오목부분에 I빔 세그먼트(10)의 하부플랜지(16)를 삽입 거치하여 완전 사변용접(28) 한다.The lower flange 16 of the I beam segment 10 is inserted into the concave portion of the U-shaped steel bracket 30 of the synthetic welding holder 26 of which height is adjustable, thereby completely quadrangular welding 28.

즉, 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작방법은 I빔 세그먼트(10)와 고강도 강판(18)을 가부착한 후, 프리플랙션하중(P)을 가한 후 양단부에 I빔 세그먼트(10) 부재접합부 천공부(20)에 고장력 볼트(22)를 삽입 체결하고, 중앙부는 일정간격으로 가용접(24) 하여 프리플랙션하중(P) 제거 후에도 I빔 세그먼트(10)와 고강도 강판(18) 사이에 도입된 프리스트레스의 손실을 최소화하고, 제작장 바닥에 높이 조절이 가능한 합성용접 거치대(26)를 I빔 세그먼트(10)의 중앙부 또는 양단부 (프리플랙션하중(P)을 상방향으로 재하 후, I빔 세그먼트(10)를 턴오버 한 경우)에 설치하여, 그 위에 프리스트레스가 도입된 I빔 세그먼트(10)를 다수 개 거치하고, I빔 세그먼트(10)와 고강도 강판(18)을 완전 사변용접(28) 하여 제작한다.That is, according to the present invention, the method of manufacturing a structural I-beam in which the prestress is introduced, attaches the I-beam segment 10 and the high-strength steel sheet 18, and then applies the pre-fraction load P to the both ends of the I-beam segment 10. ) I-beam segment 10 and high-strength steel plate 18 after high tension bolt 22 is inserted and fastened to the member joining hole 20, and the center part is welded 24 at a predetermined interval after removal of pre-fractional load P. ), To minimize the loss of prestress introduced between the two, and to adjust the height to the floor of the shop floor to the center or both ends of the I-beam segment 10 (pre-fraction load (P) upward) After that, the I beam segment 10 is turned on), and a plurality of I beam segments 10 into which prestress is introduced are mounted thereon, and the I beam segment 10 and the high strength steel plate 18 are completely completed. It is produced by quadrilateral welding (28).

한편, 상기 고강도 강판(18)의 천공은 도 3에 도시된 바와 같이, I빔 세그먼트(10)와 가부착전에 I빔 세그먼트(10)에 기천공된 I빔 세그먼트 부재접합부 천공부(20) 보다 미리 종방향으로 장천공(36)하여 가부착 후, 프리플랙션 하중재하시 I빔 세그먼트(10)와 고강도 강판(18)의 밀림을 흡수토록 한다.On the other hand, the perforation of the high-strength steel sheet 18, as shown in Figure 3, than the I-beam segment member junction portion perforated portion 20 drilled in the I-beam segment 10 before the temporary attachment to the I-beam segment 10 Longitudinal perforation 36 in the longitudinal direction in advance is applied, and the advancement of the I-beam segment 10 and the high strength steel plate 18 is absorbed at the time of pre-fraction load.

이하, 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작방법을 단계별 로 나누어 상세히 설명한다.Hereinafter, the method of manufacturing a structural I beam introduced prestress according to the present invention will be described in detail.

Ι단계는 도 1a에 도시된 바와 같이, I빔 세그먼트(10) 캠버 제작 후, 양단부에 I빔 세그먼트(10) 부재접합부(12)를 천공한다.In step I, as shown in FIG. 1A, after fabricating the I-beam segment 10 camber, the I-beam segment 10 member bonding part 12 is drilled at both ends.

Ⅱ단계는 도 1b에 도시된 바와 같이, I빔 세그먼트(10)의 상ㆍ하부플랜지(14, 16) 또는 하부플랜지(16)에 고강도 강판(18) 가부착한 후, 다지점 프리플랙션하중(P)을 재하한다.In step II, as shown in FIG. 1B, the high strength steel plate 18 is attached to the upper and lower flanges 14 and 16 or the lower flange 16 of the I-beam segment 10, and then the multi-point pre-fraction load ( Load P).

Ⅲ단계는 도 1c에 도시된 바와 같이, 프리플랙션하중(P) 재하 후, 고강도 강판(18)과 I빔 세그먼트(10) 간 밀림조정을 완료한다. 양단부 I빔 세그먼트(10) 부재접합부 천공부(20)에 맞추어 고강도 강판(18)을 천공한다.In step III, after the pre-fraction load P is loaded, the adjustment between the high strength steel plate 18 and the I beam segment 10 is completed. The high-strength steel plate 18 is drilled in accordance with the both ends of the I beam segment 10 and the member-joining part punching part 20.

Ⅳ단계는 도 1d에 도시된 바와 같이, I빔 세그먼트(10)와 고강도 강판(18)을 고장력 볼트(22)에 의해 접합한다. 고장력 볼트(22) 접합 후, 이외 부분은 일정간격으로 가용접(24) 한다.In step IV, the I beam segment 10 and the high strength steel plate 18 are joined by a high tension bolt 22, as shown in FIG. After joining the high tension bolt 22, the remaining part is welded 24 at regular intervals.

Ⅴ단계는 도 1e에 도시된 바와 같이, 프리플랙션하중(P)을 제거한다.Step V removes the pre-fraction load P, as shown in FIG. 1E.

Ⅵ단계는 도 1g에 도시된 바와 같이, I빔 세그먼트(10)를 높이조절이 가능한 합성용접 거치대(26)에 거치하되, I빔 세그먼트(10) 중앙부에 거치고임을 하거나, I빔 세그먼트(10) 양단부에 거치고임을 한다. I빔 세그먼트(10)와 고강도 강판(18)을 완전히 사변용접(28) 한다.In step VI, the I beam segment 10 is mounted on the synthetic welding cradle 26 with height adjustment, and the I beam segment 10 is placed in the center of the I beam segment 10, or the I beam segment 10 is mounted. Mount it at both ends. The I beam segment 10 and the high strength steel sheet 18 are completely quadrilateral welded 28.

Ⅶ단계는 도 1h에 도시된 바와 같이, I빔 세그먼트(10)와 고강도 강판(18)의 고장력 볼트(22) 접합부 고장력 볼트(22) 해체한다. 프리스트레스가 도입된 I빔(B)의 제작을 완료한다.Step 해 disassembles the high tension bolt 22 junction high tension bolt 22 of the I beam segment 10 and the high strength steel plate 18, as shown in FIG. 1H. The production of the I-beam B into which prestress is introduced is completed.

한편, 도 2a는 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작중 높이조절이 가능한 합성용접 거치대를 I빔 세그먼트 중앙부에 설치하는 상태를 도시한 예시도이며, 도 2b는 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작중 높이조절이 가능한 합성용접 거치대를 I빔 세그먼트 양단부에 설치하는 상태를 도시한 예시도이다.On the other hand, Figure 2a is an exemplary view showing a state in which a height adjustable synthetic welding cradle is installed in the center of the I-beam segment during fabrication of the pre-stressed structural I beam according to the present invention, Figure 2b is a prestress according to the present invention It is an exemplary view showing a state where the synthetic welding cradle capable of height adjustment during the introduction of the structural I-beam introduced is installed on both ends of the I-beam segment.

이들 도면에 도시된 바와 같이, 상기 높이조절이 가능한 합성용접 거치대(26)는 I빔 세그먼트(10) 상부플랜지(14) 위에 U자형 강재브라켓(30)을 가로방향으로 등간격으로 배치하고, 상기 U자형 강재브라켓(30)과 I빔 세그먼트(10) 상부플랜지(14)를 볼트(32)와 너트(34)로 유간을 두고 체결하고, 상기 U자형 강재브라켓(30) 위에 프리스트레스가 도입된 I빔 세그먼트(10)를 거치하여, I빔 세그먼트(10)의 자중에 의해 I빔 세그먼트(10)와 상ㆍ하부플랜지(14, 16)에 부착된 고강도 강판(18)이 들뜨지 않도록 높이 조절에 의해 들뜸을 보정한 후 용접 시공한다.As shown in these figures, the height adjustable synthetic welding cradle 26 is disposed on the U-shaped steel bracket 30 on the upper flange 14 of the I beam segment 10 at equal intervals in the horizontal direction, and The U-shaped steel bracket 30 and the I-beam segment 10 upper flange 14 are fastened with a bolt 32 and a nut 34 with a gap, and prestress is introduced on the U-shaped steel bracket 30. By adjusting the height through the beam segment 10, the high-strength steel sheet 18 attached to the I beam segment 10 and the upper and lower flanges 14 and 16 is not lifted by the weight of the I beam segment 10. After the lifting is corrected, weld it.

특히, 상기 높이조절이 가능한 합성용접 거치대(26)는 I빔 세그먼트(10)의 중앙에 설치하는 경우(도 2a 참조)와 양단부에 설치하는 경우(도 2b 참조)로 구분하여 선택적으로 시공할 수도 있음을 밝혀둔다.In particular, the height-adjustable synthetic welding cradle 26 may be selectively installed in the case of installing in the center of the I beam segment 10 (see Fig. 2a) and in the case installed on both ends (see Fig. 2b). Let's find out.

또한, 도 3은 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작중 고강도 강판을 장천공하는 상태를 도시한 예시도이다. 3 is an exemplary view showing a state in which the high strength steel sheet is perforated during fabrication of the structural I beam in which the prestress is introduced according to the present invention.

이 도면에 도시된 바와 같이, 고강도 강판(18)의 천공은 I빔 세그먼트(10)와 가부착전에 I빔 세그먼트(10)에 기천공된 I빔 세그먼트 부재접합부 천공부(20) 보 다 미리 종방향으로 장천공(36)하여 가부착 후, 프리플랙션 하중재하시 I빔 세그먼트(10)와 고강도 강판(18)의 밀림을 흡수토록 한다.As shown in this figure, the perforation of the high strength steel sheet 18 is preliminarily terminated than the I beam segment member junction portion perforation portion 20 drilled into the I beam segment 10 prior to temporary attachment to the I beam segment 10. After the temporary puncture 36 in the direction, the temporary attachment, so as to absorb the jungle of the I-beam segment 10 and the high-strength steel plate 18 during the pre-fraction load.

도 1a 내지 1h는 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작과정을 도시한 공정도,1a to 1h is a process diagram showing a pre-stressed structural I-beam manufacturing process according to the present invention,

도 2a는 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작중 높이조절이 가능한 합성용접 거치대를 I빔 세그먼트 중앙부에 설치하는 상태를 도시한 예시도,Figure 2a is an exemplary view showing a state in which the height adjustment of the synthetic welding cradle is adjustable in the center of the I-beam segment during the production of the pre-stressed structural I-beam introduced,

도 2b는 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작중 높이조절이 가능한 합성용접 거치대를 I빔 세그먼트 양단부에 설치하는 상태를 도시한 예시도.Figure 2b is an exemplary view showing a state in which the height-adjustable synthetic welding cradle is installed on both ends of the I-beam segment during the production of the pre-stressed structural I-beam introduced.

도 3은 본 발명에 따른 프리스트레스가 도입된 구조용 I빔 제작중 고강도 강판을 장천공하는 상태를 도시한 예시도. Figure 3 is an exemplary view showing a state in which the high-strength steel sheet during the fabrication of the structural I beam introduced prestress according to the present invention.

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

10: I빔 세그먼트 10a: I빔10: I beam segment 10a: I beam

12: I빔 세그먼트 부재연결부 14: 상부플랜지12: I beam segment member connection portion 14: upper flange

16: 하부플랜지 18: 고강도 강판16: lower flange 18: high strength steel sheet

20: I빔 세그먼트 부재접합부 천공부 22: 고장력 볼트20: I beam segment member joining portion punched portion 22: high tension bolt

24: 가용접 26: 합성용접 거치대24: Available welding 26: Synthetic welding holder

28: 사변용접 30: U자형 강재브라켓28: Quadrilateral welding 30: U-shaped steel bracket

32: 볼트 34: 너트32: Bolt 34: Nut

36: 장천공36: perforation

B: 프리스테스가 도입된 구조용 I빔B: Structural I Beam with Prestress

Claims (5)

I빔 세그먼트(10)를 캠버 제작 후 양단부 I빔 세그먼트(10) 부재연결부(12)를 천공하는 단계(Ⅰ);Drilling the I-beam segment 10 member connecting portion 12 at both ends after fabricating the I-beam segment 10 (I); I빔 세그먼트(10)의 상ㆍ하부 플랜지(14, 16) 또는 하부플랜지(16)에 On the upper and lower flanges 14 and 16 or the lower flange 16 of the I beam segment 10. 고강도 강판(18)을 가부착 후, 다지점으로 프리플랙션하중(P)을 재하하는 단계(Ⅱ);After attaching the high strength steel sheet 18, loading the pre-fraction load P to multiple points (II); 다지점 프리플랙션하중(P) 재하후 I빔 세그먼트(10)와 고강도 강판(18)간 양단부로 밀림조정이 완료된 후, I빔 세그먼트(10) 양단부에 기천공된 I빔 세그먼트(10) 부재접합부 천공부(20)에 맞추어 고강도 강판(18)을 천공하는 단계(Ⅲ);I-beam segment 10 member perforated at both ends of the I-beam segment 10 after the push adjustment is completed at both ends between the I-beam segment 10 and the high-strength steel plate 18 after the multi-point pre-fraction load P is loaded. Perforating the high strength steel sheet 18 in accordance with the junction puncturing portion 20 (III); I빔 세그먼트(10)와 고강도 강판(18)을 고장력 볼트(22)로 완전체결하고, 고장력 볼트(22) 접합부 내외부분을 일정간격으로 가용접(24)하는 단계(Ⅳ);(I) the I beam segment 10 and the high strength steel plate 18 are completely fastened with the high tension bolt 22, and the temporary welding 24 is carried out at the predetermined intervals inside and outside the high tension bolt 22 junction part (IV); I빔 세그먼트(10)에 재하된 프리플랙션하중(P)을 제거하는 단계(Ⅴ);Removing the pre-fraction load P loaded on the I-beam segment 10 (V); I빔 세그먼트(10)를 높이조절이 가능한 합성용접 거치대(26)에 다수 개 거치하고, I빔 세그먼트(10)와 고강도 강판(18) 접합면을 사변용접(28)하는 단계(Ⅵ);Mounting a plurality of I beam segments 10 on a synthetic welding holder 26 which can be adjusted in height, and quadrature welding 28 the I beam segment 10 and the high strength steel plate 18 to a bonding surface (VI); I빔 세그먼트(10)와 고강도 강판(18)의 용접부위의 용접열이 냉각된 후 I빔 세그먼트(10) 양단부에 체결된 고장력 볼트(22)를 해체하는 단계(Ⅶ)로 이루어짐을 특징으로 하는 프리스트레스가 도입된 구조용 I빔 제작방법.Characterized in that the step of dismantling the high tension bolts 22 fastened to both ends of the I beam segment 10 after the welding heat of the I beam segment 10 and the high strength steel plate 18 is cooled. Structural I-beam manufacturing method in which prestress is introduced. 제 1항에 있어서,The method of claim 1, 상기 높이조절이 가능한 합성용접 거치대(26)는 가로방향 I빔(10a) 상부플랜지(14)에 U자형 강재브라켓(30)을 일정간격으로 가로방향으로 다수개 설치하고, 볼트(32)와 너트(34)로 가로방향 I빔(10a) 상부플랜지(14)와 U자형 강재브라켓(30) 하면에 높이조절이 가능한 유간이 확보되도록 조립함을 특징으로 하는 프리스트레스가 도입된 구조용 I빔 제작방법.The height-adjustable synthetic welding cradle 26 is provided with a plurality of U-shaped steel bracket 30 in the horizontal direction at regular intervals in the horizontal flange I beam 10a upper flange 14, bolts 32 and nuts Prefabricated I-beam fabrication method, characterized in that the assembly to ensure the clearance between the horizontal I beam (10a) upper flange (14) and the U-shaped steel bracket (30) to ensure a clearance adjustable height. 제 1항 또는 제 2항에 있어서,The method according to claim 1 or 2, 상기 높이조절이 가능한 합성용접 거치대(26)에서 I빔 세그먼트(10)의 거치용접은 가로방향으로 놓인 한 조의 높이조절이 가능한 합성용접 거치대(26)에 I빔 세그먼트(10)의 중앙부를 위치시키고 양단부가 자중에 의해 처지도록 거치하거나, 또는 가로방향으로 놓인 두 조의 높이조절이 가능한 합성용접 거치대(26)에 I빔 세그먼트(10)의 각 양단부를 위치시켜 중앙부가 자중에 의해 처지도록 하여 완전 사변용접(28)함을 특징으로 하는 프리스트레스가 도입된 구조용 I빔 제작방법.In the height-adjustable synthetic welding holder 26, the mounting welding of the I-beam segment 10 is located at the center of the I-beam segment 10 in the composite welding holder 26 which is capable of adjusting the height of a set of horizontal beams. Both ends of the I beam segment 10 are placed on the synthetic welding holder 26 which can be mounted on both ends to sag by its own weight, or two sets of horizontally adjustable heights, so that the center part sags due to its own weight. A pre-stressed structural I-beam manufacturing method characterized by welding (28). 제 2항에 있어서,The method of claim 2, 상기 높이조절이 가능한 합성용접 거치대(26)의 U자형 강재브라켓(30)의 오목부분에 I빔 세그먼트(10)의 하부플랜지(16)를 삽입 거치하여 완전 사변용접(28)함을 특징으로 하는 프리스트레스가 도입된 구조용 I빔 제작방법.It characterized in that the complete quadrangle welding 28 by inserting the lower flange 16 of the I-beam segment 10 into the concave portion of the U-shaped steel bracket 30 of the height adjustable synthetic welding holder 26. Structural I-beam manufacturing method in which prestress is introduced. 제 1항에 있어서,The method of claim 1, 상기 고강도 강판(18)의 천공은 I빔 세그먼트(10)와 가부착전에 I빔 세그먼트(10)에 기천공된 I빔 세그먼트 부재접합부 천공부(20) 보다 미리 종방향으로 장천공(36)하여 가부착 후, 프리플랙션 하중재하시 I빔 세그먼트(10)와 고강도 강판(18)의 밀림을 흡수함을 특징으로 하는 프리스트레스가 도입된 구조용 I빔 제작방법.The high-strength steel sheet 18 is drilled in the longitudinal direction 36 in advance in the longitudinal direction than the I-beam segment 10 and the I-beam segment member-joining portion 20 drilled in the I-beam segment 10 before temporary attachment. A pre-stressed structural I-beam fabrication method characterized by absorbing the sliding of the I-beam segment (10) and the high-strength steel sheet (18) at the time of prefraction load.
KR1020080022839A 2008-03-12 2008-03-12 I-beam method of fabrication for structure prestress was introduced KR100836679B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2714984C1 (en) * 2019-05-20 2020-02-21 Федеральное государственное бюджетное образовательное учреждение высшего образования Иркутский государственный университет путей сообщения (ФГБОУ ВО ИрГУПС) Method of manufacturing for longitudinal beams of a cargo railway platform frame

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920012687A (en) * 1990-12-05 1992-07-27 장석윤 Method of manufacturing prestressed composite beam
KR100687607B1 (en) 2006-08-29 2007-02-27 우경건설 주식회사 Camber introduction equipment and camber introduction method for i-beam and it introduced i-beam camber compensation method beyond camber designing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920012687A (en) * 1990-12-05 1992-07-27 장석윤 Method of manufacturing prestressed composite beam
KR100687607B1 (en) 2006-08-29 2007-02-27 우경건설 주식회사 Camber introduction equipment and camber introduction method for i-beam and it introduced i-beam camber compensation method beyond camber designing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2714984C1 (en) * 2019-05-20 2020-02-21 Федеральное государственное бюджетное образовательное учреждение высшего образования Иркутский государственный университет путей сообщения (ФГБОУ ВО ИрГУПС) Method of manufacturing for longitudinal beams of a cargo railway platform frame

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