KR970059431A - Prestressed Continuous Composite Structure Construction and Construction Method - Google Patents
Prestressed Continuous Composite Structure Construction and Construction Method Download PDFInfo
- Publication number
- KR970059431A KR970059431A KR1019960000469A KR19960000469A KR970059431A KR 970059431 A KR970059431 A KR 970059431A KR 1019960000469 A KR1019960000469 A KR 1019960000469A KR 19960000469 A KR19960000469 A KR 19960000469A KR 970059431 A KR970059431 A KR 970059431A
- Authority
- KR
- South Korea
- Prior art keywords
- prestressed
- continuous
- composite
- section
- composite beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000002131 composite material Substances 0.000 title claims abstract description 57
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract 9
- 238000004519 manufacturing process Methods 0.000 claims abstract 9
- 238000005266 casting Methods 0.000 claims abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims 2
- 238000009749 continuous casting Methods 0.000 claims 1
- 239000011178 precast concrete Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract 2
- 210000001015 abdomen Anatomy 0.000 abstract 1
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 abstract 1
- 230000007849 functional defect Effects 0.000 abstract 1
- 230000005021 gait Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 230000007847 structural defect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000011513 prestressed concrete Substances 0.000 description 1
Classifications
-
- 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
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
-
- 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
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
본 발명은 지금까지 건설되어온 단경간 프리스트레스트 합성보 구조물이 시공에서 불가피하게 설치되어온 팽창조인트(Expansion Joint)를 제거하고 연속보화 함으로써 팽창조인트로 인한 구조상 및 기능상의 결함을 극복하고 보를 장대화할 수 있으며 아울러 재료를 대폭 절감할 수 있는 새로운 방식의 프리스트레스트 합성보의 제작 및 프리스트레스트 합성보 구조물의 시공방법에 관한 것이다. 또한 본 발명은 프리스트레스트 합성보의 길이를 장대화할 경우에 발생되는 운반 및 취급상으 어려움을 개선하기 위하여 합성보를 분할제작할 수 있으며, 분활된 세그멘트를 조립하여 완성된 연속보구조에서의 외측경간용 및 내측경간용의 프리스트레스트합성보를 지점상에서 연속적으로 일체화시키는 시공법에 관한 것이다. 이러한 목적을 달성하기 위해서는 연속보구조물에서의 사하중 및 활하중에 의한 내측지점부이 부모멘트로 인해 상부플랜지에 발생되는 인장응력에 대응되는 압축응력의 도입(Prestressing)방법이 강구되어져야 한다. 선 발명된 프리스트레스트 연속합성보 구조물의 시공방법은 지점의 상승 및 하강 그리고, 제작과정에서의 고정단 처리문제등 까다로운 공정없이 일체화시킴에 있다. 그러나, 본 발명에서의 목표를 달성하기 위한 핵심적 기술은 제작과정에서 고정단 설치에 의한 문제점을 해결하고 단경간으로 분리 제작된 연속보용 프리스트레스트 합성보간의 연결부를 지점부의 상승 및 하강의 까다로운 공정없이 일체화시킴에 있다. 따라서, 기존의 프리스트레스트 합성보구조물에서 발생되는 팽창조인트의 문제점들을 완전히 제거하고, 피로파괴 강도 및 내진성이 높고 처짐에 유리한 시공방법이 제공된다. 본 발명의 또다른 목적은 단경간으로 분리 제작된 프리스트레스트 합성보를 연속처리함으로써 자중 및 활하중에 의한 경간 내부의 최대휨모멘트를 기존의 단순보형 프리스트레스트 합성보의 경우보다 현저히 감소시킴으로써, 자중감소의 효과 및 취급에 유리한 분할제작공법의 도입으로 경간장을 더욱 장대화하여 경제적이고 안전한 단면을 갖는 새로운 프리스트레스트 연속합성보 구조물의 시공법을 제공함에 있다. 본 발명에 의한 지점상승 제작시 및 고정단설치의 공정없는 프리스트레스트 연속합성보구조의 제작 및 시공은 다시 세부적으로 3가지의 각각 기능 및 시공상의 특성이 다른 방법으로 구분될 수 있는데, 그 하나는 프리스트레스트 합성보를 제작 설치한 후 정모멘트구간의 상판(Slab)및 복부를 전체적으로 현장타설콘크리트로 그리고 부모멘트구간의 상판은 압축응력이 도입된 프리캐스트로 처리하는 시공법과 두번째는 정모멘트 구간의 상판은 부분적으로 현장타설콘크리트로 또는 공장생산된 프리캐스트로, 그리고 부모멘트구간의 상판은 압축응력이 도입(Prestreessing)된 프리캐스트로 처리하는 시공법. 그리고 세번째로는 상판전체를 공장생산하여 현장에서 간편히 조립함으로써 고품질의 구조물을 단기간내에 완성할 수 있는 공법을 제공한다.The present invention can overcome the structural and functional defects due to the expansion joints by eliminating the expansion joint which is inevitably installed in the construction and continuously tremendously by the single span prestressed composite structure constructed so far, The present invention also relates to a new method of producing a prestressed composite beam and a method of constructing a prestressed composite beam structure capable of drastically reducing material. Further, in order to improve the difficulty of conveying and handling occurring when the length of the prestressed composite beam is changed, the composite beams can be dividedly manufactured, and the divided segments can be assembled, And a prestressed composite beam for inter-sideways interconnection is continuously integrated on a point. In order to achieve this purpose, a prestressing method corresponding to the tensile stress generated in the upper flange due to the inner branch buoyant moment caused by dead load and live load in the continuous beam structure should be adopted. The construction method of the continuous invented composite prestressed composite structure is to integrate without any complicated processes such as rising and falling of points and problems of fixed end processing in the manufacturing process. However, a key technique for achieving the object of the present invention is to solve the problem caused by the installation of the fixed end in the manufacturing process and to integrate the connection part between the continuous gait prestressing composite bones separated and produced in a short span without any complicated process of ascending and descending of the fulcrum It is in Sikkim. Accordingly, it is possible to completely eliminate the problems of the expansion joint generated in the existing prestressed composite building structure, and to provide a construction method which is high in fatigue breaking strength, high vibration resistance, and deflection. It is a further object of the present invention to provide a method and apparatus for continuously reducing the maximum bending moment in the span due to its own weight and live load by significantly reducing the pre- And to provide a new prestressed continuous composite structure having an economic and safe cross section by introducing a split manufacturing method which is advantageous for handling. The fabrication and construction of the prestressed continuous composite beam structure at the point elevation manufacturing stage and the fixed stage installation according to the present invention can be further divided into three different functions and construction characteristics in different ways, After constructing and installing the restrained composite beams, the slab and the abdomen of the section of the upper section of the section are put into the concrete as a whole, and the upper section of the section of the upper section is treated with the pre-casting with the compressive stress. The construction method is performed by pre-casting with partially stressed concrete or with factory-produced pre-casting, and pre-stressed prestressed tops of the parent section. And thirdly, it provides a method to complete the high-quality structure in a short period of time by factory-making the whole roof and assembling it easily in the field.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 본 발명에 의한 프리스트레스 연속합성보 구조의 외측경간용 강재보 및 3가지의 각기 기능 및 시공사의 특성이 다른 프리스트레스트 합성보의 형상도,FIG. 1 is a view showing a shape of a prestressed continuous composite beam structure according to the present invention, a shape of a prestressed composite beam having different characteristics of the outer span steel beam,
제2도는 본 발명에 의한 프리스트레스트 연속합성보 구조의 외측경간용보에서 정모멘트구간에 대한 압축응력의 도입(Prestressing)공정에 관한 원리도,FIG. 2 is a principle view of a prestressing process for a longitudinal section in the outer span section of the continuous prestressed composite beam structure according to the present invention; FIG.
제3도는 본 발명에 의한 프리스트레스트 연속합성보 구조의 외측경간용보에서 부모멘트 구간에 대한 압축응력의 도입공정에 관한 원리도,FIG. 3 is a principle diagram of a process for introducing a compressive stress to a section of the moment in the outer span of the prestress continuous composite beam structure according to the present invention;
제4도는 본 발명에 의한 프리스트레스트 연속합성보 구조의 내측경간용 강재보 및 3가지의 각기 기능 및 시공상의 특성이 다른 프리스트레스트 합성보의 형상도,FIG. 4 is a view showing the shape of a steel beam for internal side sill according to the present invention and a prestressed composite beam having different functions and construction characteristics,
제5도는 본 발명에 의한 프리스트레스트 연속합성보 구조의 내측경간용에서 정모멘트 구간의 압축응력의 도입(Prestressing)공정에 관한 원리도,FIG. 5 is a principle diagram for a prestressing process of the compression stress in the inner and outer diametric sections of the prestress continuous composite structure according to the present invention; FIG.
제6도는 본 발명에 의한 프리스트레스트 연속합성보 구조의 내측경간용보에서 부모멘트 구간의 압축응력의 도입(Prestressing)공정에 관한 원리도,FIG. 6 is a principle diagram for a prestressing process of a compression stress in a section of the inner diameter of a continuous prestressed composite beam structure according to the present invention; FIG.
제7도는 본 발명에 의한 프리스트레스트 연속합성보 구조에서 정모멘트구간의 상판은 완전히 현장타설콘크리트에 의해, 그리고 부모멘트구간의 상판은 압축응력이 도입된 프리캐스트에 의해 완성시키는 경우에서 외측경간용 프리스트레스트 합성보와 내측경간용 프리스트레스트 합성보의 연결조립 및 완성된 입체도,7 is a perspective view of a prestressed continuous composite beam structure according to the present invention. FIG. 7 is a perspective view of a prestressed continuous prestressed concrete structure according to the present invention. The combined assembly of the left and right sidewall prestressed composite beams,
제8도는 본 발명에 의한 프리스트레스트 연속합성보 구조에서 정모멘트구간의 상판은 부분적 현장타설콘크리트 또는 프리캐스트에 의해. 그리고 부모멘트구간의 상판은 압축응력이 도입된 프리캐스트에 의해 완성시키는 경우의 외측경간용 프리스트레스트 합성보와 내측경간용 프리스트레스트 합성보의 연결조립 및 완성된 입체도,FIG. 8 is a top view of a continuous prestressed composite beam structure according to the present invention; FIG. In addition, the upper plate of the momentum section is connected and assembled between the outer-span prestress composite beam and the inner-span inter-prestricted composite beam in the case of completing the pre-
제9도는 본 발명에 의한 프리스트레스트 연속합성보구조에서 프리캐스트 상판으로 완전 조립하여 완성시키는 경우의 외측경간용 프리스트레스트 합성보와 내측경간용 프리스트레스트 합성보의 연결조립 입체도.FIG. 9 is a perspective view of a connection assembly of an outer sheath prestressing composite beam and a inner sheath prestressing composite beam in a case where a precast upper plate is fully assembled and completed in a continuous prestressed composite beam structure according to the present invention.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960000469A KR0169212B1 (en) | 1996-01-12 | 1996-01-12 | Method of manufacturing and constructing the prestressed composite beam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960000469A KR0169212B1 (en) | 1996-01-12 | 1996-01-12 | Method of manufacturing and constructing the prestressed composite beam |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970059431A true KR970059431A (en) | 1997-08-12 |
KR0169212B1 KR0169212B1 (en) | 1999-02-18 |
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KR1019960000469A Expired - Fee Related KR0169212B1 (en) | 1996-01-12 | 1996-01-12 | Method of manufacturing and constructing the prestressed composite beam |
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KR (1) | KR0169212B1 (en) |
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1996
- 1996-01-12 KR KR1019960000469A patent/KR0169212B1/en not_active Expired - Fee Related
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KR0169212B1 (en) | 1999-02-18 |
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