KR20020028562A - The Joint for Continuity of Double Tee Slab-beams - Google Patents
The Joint for Continuity of Double Tee Slab-beams Download PDFInfo
- Publication number
- KR20020028562A KR20020028562A KR1020000059622A KR20000059622A KR20020028562A KR 20020028562 A KR20020028562 A KR 20020028562A KR 1020000059622 A KR1020000059622 A KR 1020000059622A KR 20000059622 A KR20000059622 A KR 20000059622A KR 20020028562 A KR20020028562 A KR 20020028562A
- Authority
- KR
- South Korea
- Prior art keywords
- slab
- flange
- type
- double tee
- continuity
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
본 발명의 더블티 슬래브의 연속화는 가장 많이 활용되고 있는 슬래브 PC 재료중 하나인 더블티 슬래브(5)와 보 연결부(8)의 연속화에 관한 것이다. 보다 구체적으로, 본 발명의 더블티 슬래브-보 연결부의 연속화는 먼저 직사각형보(9)에 개량된 더블티 슬래브(5)의 양 단부(7)를 얹고 그 위에 토핑콘크리트(10)를 타설하는 단계로 이루어진다. 개량된 더블티 슬래브(5)는 PC빔(9')에 지지되는 플랜지(6)의 양 단부의 두께를 중간부의 두께보다 두껍게 하고, 웨브(7)의 전체 길이를 상기 플랜지(6)의 양 단부에서 'ㄱ' 형상의 댑(8)을 형성시키는 것을 특징으로 하는 것으로, 이를 이용하여 PC빔(9') 양단에 개량된 더블티 슬래브(5)를 배열하고 토핑콘크리트(10)를 타설함으로써 슬래브를 연속화시키는 방법에 관한 것이다.The continuity of the double tee slab of the present invention relates to the continuity of the double tee slab 5 and the beam connection 8 which is one of the most utilized slab PC materials. More specifically, the continuity of the double tee slab-beam connection of the present invention is a step of first placing both ends 7 of the improved double tee slab 5 on the rectangular beam 9 and placing the topping concrete 10 thereon. Is made of. The improved double tee slab 5 makes the thickness of both ends of the flange 6 supported by the PC beam 9 'thicker than the thickness of the middle part, and the overall length of the web 7 is determined by the amount of the flange 6. It characterized in that to form a 'b' shaped adapter (8) at the end, by using the arrangement of the improved double tee slab (5) on both ends of the PC beam (9 ') and pouring the topping concrete (10) A method of sequencing a slab is provided.
종래의 T형 PC슬래브(1)는 도1A에서 도시된 바와 같이 두께가 일정한 직사각형판 형상의 플랜지(2)와 상기 플랜지 하부 면에 직각으로 형성되며, 상기 플랜지(2)와 동일한 길이의 웨브(3)로 구성된다. PC빔(9)에 설치될 수 있도록 상기 웨브(3)의 양 단부의 하단부에 'ㄱ' 자 형상으로 파여진 댑(4)이 형성된다. 도2B에서 도시된 바와 같이 상기 종래의 댑(4)이 형성된 T형 PC슬래브(1)는 댑(4)을 형성시키기 위해 웨브(3)의 깊이를 줄인 'H1' 만큼 층고를 감축시키는 효과는 있지만, PC빔(9)에 종래의 T형 PC슬래브(1)는 통상 단순지지되기 때문에 상기 종래의 T형 PC슬래브(1)의 중앙에 최대 정모멘트가 발생하여 전체적으로 두께가 두꺼운 T형 PC슬래브를 제작해야 하며, 댑(4)의 깊이(H2)/보의 전체 길이의 비가 큰 경우에는 웨브(3)의 복부 전단균열에 의해 T형 PC슬래브의 웨브(3)의 내부에 형성된 강선의 조기 정착파괴를 유발 할 수 있고, 결과적으로 처짐, 진동 및 균열에 대한 부재의 사용성 측면에서도 불리하다는 문제점이 있다. 특히 종래의 T형 PC슬래브를 이용하여 보-슬래브를 연속화 할 경우 별도의 거푸집이 필요하며, 토핑 콘크리트를 타설할 경우 유효면적이 줄어들어 자중 감소에는 효과적이나 일체화에 문제가 있고, 접합부 균열이 많이 발생하게 된다.The conventional T-type PC slab 1 is formed at right angles to the flange 2 of the rectangular plate shape having a constant thickness as shown in FIG. 1A and the lower surface of the flange, and has a web of the same length as the flange 2 ( 3) consists of. The adapter 4 is formed in the lower end of the both ends of the web 3 to be installed in the PC beam (9) digging in the 'b' shape. As shown in FIG. 2B, the conventional T-type PC slab 1 in which the dip 4 is formed has an effect of reducing the height by 'H1', in which the depth of the web 3 is reduced to form the dip 4. However, since the conventional T-type PC slab 1 is usually simply supported by the PC beam 9, the maximum static moment is generated in the center of the conventional T-type PC slab 1, so that the overall thickness of the T-type PC slab is thick. If the ratio of the depth (H2) / total length of the beam (4) is large, the premature of the steel wire formed inside the web (3) of the T-type PC slab by the abdominal shear crack of the web (3) There is a problem that can cause the anchorage failure, and consequently also disadvantages in terms of usability of the member against sagging, vibration and cracking. In particular, when the beam-slab is continuous by using the conventional T-type PC slab, a separate formwork is required.When topping concrete is poured, the effective area is reduced, so it is effective to reduce the weight, but there is a problem in the integration, and there are many joint cracks. Done.
또한 종래의 T형 PC슬래브(1)의 댑(4)에 전단력에 의한 응력집중이 가해져 T형 PC슬래브의 구조적인 안정이 상기 댑(4) 부위의 전단강도에 의해 지배되기 때문에 많은 주철근, u형 스트럽, 보조철근 및 보강판이 댑 부위의 전단강도를 높이기 위해 배근되어야 한다는 문제점이 있다.In addition, since stress concentration is applied to the adapter 4 of the conventional T-type PC slab 1 by the shear force, and structural stability of the T-type PC slab is governed by the shear strength of the area of the adapter 4, u There is a problem in that the mold stirrup, auxiliary reinforcing bar and reinforcing plate should be reinforced to increase shear strength of the adapter portion.
본 발명의 목적은 웨브에 별도의 댑을 형성시키지 않으면서 T형 PC슬래브의 양 단부의 플랜지 깊이(H2')를 종래의 T형 PC슬래브의 댑의 깊이(H2)보다 크게 함으로서 상기 플랜지의 전체 단면이 외부하중에 의한 전단력을 지탱할 수 있도록 하고, 나아가 전단강도를 개선할 수 있는 T형 PC슬래브 및 이를 이용하여 직사각형 PC 빔(1)과 토핑콘크리트(10)로 일체화시켜 삼성댑의 연속화방법을 제공하는 것이다.An object of the present invention is to increase the flange depth (H2 ') at both ends of a T-type PC slab by making the flange depth (H2') of both ends of the T-type PC slab larger than the depth (H2) of the adapter of a conventional T-type PC slab without forming a separate adapter in the web. The sequential method of Samsung adapter by integrating the rectangular PC beam (1) and the topping concrete (10) by using the T-type PC slab, which enables the cross section to support the shear force due to external load, and further improves the shear strength. To provide.
도1A는 종래의 T형 PC 슬래브의 사시도이다.1A is a perspective view of a conventional T-type PC slab.
도1B는 종래의 T형 PC 슬래브의 댑과 PC 빔과의 접합부의 입면도이다.Fig. 1B is an elevational view of the junction of the adapter and PC beam of a conventional T-type PC slab.
도2B는 본 발명의 T형 PC 슬래브의 댑과 PC 빔과의 접합부의 입면도이다.Fig. 2B is an elevational view of the junction of the adapter and PC beam of the T-type PC slab of the present invention.
도3A는 종래의 T형 PC 슬래브의 연속화에 대한 입면도이다.Fig. 3A is an elevation view of the sequencing of a conventional T-type PC slab.
도3B는 본 발명의 보-슬래브 연속화에 대한 입면도이다.Figure 3B is an elevation view for beam-slab continuation of the present invention.
도3C는 본 발명의 보-슬래브 연속화의 구성도이다.3C is a schematic diagram of beam-slab continuity of the present invention.
<도면의 부호에 대한 간단한 설명><Short description of the symbols in the drawings>
1: 종래의 T형 PC 슬래브1: Conventional T-type PC Slab
2: 종래의 T형 PC 슬래브의 플랜지2: flange of conventional T-type PC slab
3: 종래의 T형 PC 슬래브의 웨브3: Web of conventional T-type PC slab
4: 종래의 T형 PC 슬래브의 댑4: adapter of conventional T-type PC slab
5: 본 발명이 T형 PC 슬래브5: the present invention is T-type PC slab
6: 본 발명의 T형 PC 슬래브의 플랜지6: flange of T-type PC slab of the present invention
7: 본 발명의 T형 PC 슬래브의 웨브7: Web of T-type PC slab of the present invention
8: 본 발명의 T형 PC 슬래브의 댑8: Adapter of T-type PC slab of the present invention
9: 종래의 역티9: conventional reverse tea
9': 직사각형 빔9 ': rectangular beam
10: 토핑콘크리트10: topping concrete
도면에 따라 본 발명을 설명한다.The present invention will be described with reference to the drawings.
기존 더블티 슬래브(1)는 일반적으로 역티형보(9)에 단순 지지되어 연결된다. 그 후 슬래브 상부에 구조의 일체성과 연속성을 위하여 그리고 다이아프램 작용을 위하여 토핑콘크리트(10)를 타설할 수 있으나, 토핑콘크리트(10)의 두께가 연속보의 두께로 그대로 적용되므로 기존 더블티 슬래브(5)는 토핑콘크리트(10)를 타설하고 철근망을 삽입하여도 단순보로 해석하여야 한다.The existing double tee slab 1 is generally simply supported on the inverted tee beam 9 and connected. Thereafter, the topping concrete 10 may be poured on the upper part of the slab for the integrity and continuity of the structure, and for the diaphragm action, but the thickness of the topping concrete 10 is applied as the thickness of the continuous beam so that the existing double tee slab ( 5) should be interpreted as a simple beam even if the topping concrete 10 is poured and the reinforcing bar is inserted.
본 발명의 개량 더블티 슬래브(5)와 직사각형보 연결부(8)는 양단의 개량 더블티 슬래브(5)와 직사각형보(9')로 구성되며 그 위에 철근 배근과 함께 토핑콘크리트(10)가 타설된다. 도3C는 웨브가 두 개인 개량 더블티와 직사각형보의 일체화된 구체예의 입면도를 나타낸 것으로서 이를 기준으로 본 발명의 삼성댑의 연속화를 설명한다.The improved double tee slab 5 and the rectangular beam connecting portion 8 of the present invention are composed of the improved double tee slab 5 and the rectangular beam 9 'at both ends, and the topping concrete 10 is placed thereon with reinforcement on it. do. 3C shows an elevation view of an integrated embodiment of an improved double tee and rectangular beam having two webs, illustrating the sequencing of the Samsung adapter of the present invention based on this.
모멘트 연속화는 지점 위에 길이방향의 철근을 배근함으로써 일반적으로 구할 수 있다. 더블티에 대한 연속화로 인한 스팬 용량의 증가는 단부에서 전단력의 증가를 가져오므로 주어진 동일한 하중 하에서 전단력의 증가를 초래하므로 적용된 적재하중이 매우 크거나, 적용된 스팬용량의 증가가 클 경우에 중요한 관심사가 된다. 전단내력의 증가를 위해서는 단부에서의 전단내력을 증가시키기 위하여 다양한 방법을 고려하여야 한다. 더블티의 전단내력 증가는 삼성댑으로 니브의 두께를 증가시키고 토핑콘크리트 두께를 증가함으로써 이룰 수 있다.Moment continuity can generally be obtained by placing longitudinal rebar over the point. An increase in span capacity due to sequencing for double tees results in an increase in shear force at the end, which leads to an increase in shear force under a given load, which is of significant concern when the applied load is very large or the increase in applied span capacity is large. do. In order to increase the shear strength, various methods should be considered to increase the shear strength at the ends. The increase in shear strength of the double tee can be achieved by increasing the thickness of the nib and the thickness of the topping concrete with the Samsung adapter.
본 발명의 개량 더블티 슬래브-보 연속화는 종래의 더블티 슬래브에 비해 보중앙 정모멘트의 감소로 적용하중에 대한 설계 스팬을 증가시킬 수 있고, 슬래브의 처짐을 감소시킬 수 있으며 종래의 더블티 공법의 문제점인 더블티와 역티사이의 연결부 균열을 감소시킬 수 있다. 나아가 더블티 니브면이 그대로 시공에 적용되는 이점이 있으므로 시공시 추가적인 거푸집을 필요로 하지 않으며, 역티보다 생산, 운송, 시공이 쉬우며 경제적이다. 균열, 처짐 및 진동에 대한 부재의 사용성을 개선할 수 있고 더블티의 연속화로 인한 스핀 용량의 증가는 단부에서 전단력의 증가를 가져오므로 주어진 동일한 하중 하에서 전단력의 증가는 니브의 두께를 증가시키고 토핑콘크리트 두께를 증가함으로서 개선할 수 있기 때문에 효율적이고 경제적인 단면을 가진 T형 PC 슬래브와 보의 연속화를 제공한다.The improved double tee slab-beam sequencing of the present invention can increase the design span for applied loads by reducing the beam center static moment compared to the conventional double tee slab, reduce the deflection of the slab, and the conventional double tee method It is possible to reduce the connection crack between the double tee and the reverse tee. Furthermore, since the double tee nib surface has the advantage of being applied to the construction as it is, it does not require additional formwork when constructing, and is easier and more economical to produce, transport, and construct than reverse tees. Increasing the shear capacity at the end can increase the usability of the member against cracks, deflections and vibrations, and the increase in spin capacity due to the continuity of the double tees increases the shear force under the same load, increasing the thickness of the nib and topping It can be improved by increasing the thickness of the concrete, thus providing the continuity of the T-type PC slab and beam with an efficient and economical cross section.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000059622A KR20020028562A (en) | 2000-10-10 | 2000-10-10 | The Joint for Continuity of Double Tee Slab-beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000059622A KR20020028562A (en) | 2000-10-10 | 2000-10-10 | The Joint for Continuity of Double Tee Slab-beams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20020028562A true KR20020028562A (en) | 2002-04-17 |
Family
ID=19692849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020000059622A KR20020028562A (en) | 2000-10-10 | 2000-10-10 | The Joint for Continuity of Double Tee Slab-beams |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20020028562A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030063962A (en) * | 2002-01-24 | 2003-07-31 | 유승룡 | Improved T-shape PC Slab and Method for Constructing Structure Using the Same |
| KR20030063963A (en) * | 2002-01-24 | 2003-07-31 | 유승룡 | Improved T-shape PC Slab and witch include the Service ducts at the end and method for Constructing Structure Using the Same |
| KR20030094951A (en) * | 2002-06-10 | 2003-12-18 | 유승룡 | Connection of Modified Wide-flange Steel Beam and Precast Concrete Slab and Method for Constructing Structure Using the Same |
| KR101032104B1 (en) * | 2011-03-14 | 2011-05-02 | 현대산업개발 주식회사 | Double tee slab, parking concrete framework of building using the double-tee slabs and methode there of |
| CN111926675A (en) * | 2020-07-29 | 2020-11-13 | 长江勘测规划设计研究有限责任公司 | Bridge deck continuous structure for reducing arrangement of bridge deck expansion joints and construction method thereof |
-
2000
- 2000-10-10 KR KR1020000059622A patent/KR20020028562A/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030063962A (en) * | 2002-01-24 | 2003-07-31 | 유승룡 | Improved T-shape PC Slab and Method for Constructing Structure Using the Same |
| KR20030063963A (en) * | 2002-01-24 | 2003-07-31 | 유승룡 | Improved T-shape PC Slab and witch include the Service ducts at the end and method for Constructing Structure Using the Same |
| KR20030094951A (en) * | 2002-06-10 | 2003-12-18 | 유승룡 | Connection of Modified Wide-flange Steel Beam and Precast Concrete Slab and Method for Constructing Structure Using the Same |
| KR101032104B1 (en) * | 2011-03-14 | 2011-05-02 | 현대산업개발 주식회사 | Double tee slab, parking concrete framework of building using the double-tee slabs and methode there of |
| CN111926675A (en) * | 2020-07-29 | 2020-11-13 | 长江勘测规划设计研究有限责任公司 | Bridge deck continuous structure for reducing arrangement of bridge deck expansion joints and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101022853B1 (en) | Composite girder for constructing bridge | |
| KR101991930B1 (en) | Rahman bridge and construction method thereof | |
| KR101934874B1 (en) | Deck plate comprised of ultra high strength fiber reinforced concrete and construction method using thereof | |
| KR102597084B1 (en) | Steel Ccomposite Rahmen Bridge Structure and its Construction Method | |
| US20030093961A1 (en) | Composite structural member with longitudinal structural haunch | |
| KR100554408B1 (en) | Composite Girder for Bridge and Construction Method | |
| KR100340115B1 (en) | T-shape PC slab dap end and method for constructing structure using the same | |
| KR20020028562A (en) | The Joint for Continuity of Double Tee Slab-beams | |
| KR20080111686A (en) | Bridge using phc girder and slab-phc complex girder | |
| KR100989313B1 (en) | Bridge structure by composition slab with reinforced tensile strength | |
| KR100462966B1 (en) | Prestressed Concrete U-Girder of compositive girder bridge | |
| CN216338993U (en) | Longitudinal joint for steel-UHPC (ultra high performance concrete) assembled pi-shaped combination beam | |
| KR102325276B1 (en) | Half Precast Concrete continuous slab and construction method of the same | |
| KR100767145B1 (en) | Construction method of prestressed concrete temporary bridge that can be assembled and dismantled using lateral steel wire | |
| KR102327700B1 (en) | Girder structure and construction method for continuity of supporting portion of girder using the same | |
| KR102244268B1 (en) | Composite girder with concrete girders at both ends and manufacturing method there of for civil structure | |
| KR20070081812A (en) | Hpc | |
| JP3931635B2 (en) | Composite box girder and its construction method | |
| JP2002275833A (en) | Continuing method of simple beam of existing bridge and continuous beam structure | |
| KR102563620B1 (en) | Half Precast Concrete continuous slab and construction method of the same | |
| CN212358589U (en) | Prefabricated post and use its prefabricated post connection structure | |
| KR100356766B1 (en) | Corbel Structure Having Hook Type Reinforced Steel, and Contructuring Method thereof | |
| KR102301622B1 (en) | Composite rahmen bridge, construction method thereof and steel girder for composite rahmen bridge | |
| KR102463636B1 (en) | External Reinforcement Structure of Head Cutting PC Pile | |
| JP2003064621A (en) | Hanging floor slab bridge and reinforcing method of hanging floor slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application | ||
| E601 | Decision to refuse application |