WO2015009124A1 - 흙막이 가시설 공사의 버팀보 연결구조 - Google Patents

흙막이 가시설 공사의 버팀보 연결구조 Download PDF

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Publication number
WO2015009124A1
WO2015009124A1 PCT/KR2014/006596 KR2014006596W WO2015009124A1 WO 2015009124 A1 WO2015009124 A1 WO 2015009124A1 KR 2014006596 W KR2014006596 W KR 2014006596W WO 2015009124 A1 WO2015009124 A1 WO 2015009124A1
Authority
WO
WIPO (PCT)
Prior art keywords
support frame
steel wire
construction
temporary
brace
Prior art date
Application number
PCT/KR2014/006596
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
한만엽
Original Assignee
㈜써포텍
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ㈜써포텍 filed Critical ㈜써포텍
Priority to CN201480041067.8A priority Critical patent/CN105431593A/zh
Priority to JP2016527945A priority patent/JP2016528406A/ja
Publication of WO2015009124A1 publication Critical patent/WO2015009124A1/ko

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E02D17/083—Shoring struts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits
    • E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/16—Shapes
    • E02D2200/1628—Shapes rectangular
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2220/00—Temporary installations or constructions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0046—Production methods using prestressing techniques
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0026—Metals
    • E02D2300/0029—Steel; Iron
    • E02D2300/0034—Steel; Iron in wire form
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/40—Miscellaneous comprising stabilising elements

Definitions

  • the present invention relates to a bracing connection structure of the earthenware temporary construction, and more particularly, in order to offset the horizontal load applied to the strip, the connecting members are tensioned with a PS steel wire that applies a load opposite to the horizontal load. It relates to a retaining structure of temporary wall construction to prevent unnecessary horizontal loads from being applied to the building.
  • the construction method in the case of digging in order to make a basement of an existing subway construction or a building, first drills a hole along the planned plane to the design depth, and installs a vertical pile.
  • the excavation is partially carried out, and the mold beam and the perforated plate are installed.
  • the subsequent construction is carried out by repeating the excavation work and the installation of the brace according to the excavation.
  • the tightly arranged braces are very important obstacles to the transportation of construction materials, carrying heavy equipment and construction work in the shelter, and when the structure is installed in the future, there is a huge obstacle to form work or reinforcement work. Inevitably, since the formation of a large number of holes in the structure cannot be avoided, serious problems arise in the waterproofing of the finished underground structure.
  • This method inserts steel wires or rods by drilling inclined holes into the back ground of the pile, and sets the ends of the inserted steel rods by mechanical methods or by chemical methods such as epoxy and cement grouting. To fix the steel file.
  • the temporary facility constructed in this way is a method that has the advantage of improving the difficulty of the construction by securing sufficient internal space.
  • Republic of Korea Patent No. 10-0698878 name of the invention: the wire-type connection structure of the steel pipe brace, registration date: 3007.03.16), two steel pipe braces that are installed inclined on both sides of the belt so as to distribute the force applied to the belt And, a double steel pipe brace positioned at a predetermined distance apart from the inside of the two side strips, and the connection body connected between the two steel pipe braces and the double steel pipe braces to be connected to the two steel pipe braces and the double steel pipe braces, and the It is characterized in that it comprises a base plate which is respectively bonded to the two steel pipe braces and double steel pipe braces and is in contact with the connecting body and fastened to the connecting body.
  • the wire-type connection structure of the steel pipe brace according to the related art is characterized in that the load of the double steel pipe brace is distributed to the steel pipe brace, a vertical component applied in the double steel pipe brace. Is a vertical component and horizontal component acting on the weft wedge provided at the site where the steel pipe support and the strip are combined.
  • an object of the present invention is to tension the connecting members with a PS steel wire to apply a load opposite to the horizontal load to cancel the horizontal load applied to the belt length It is to provide a supporting structure for the temporary wall construction to prevent unnecessary horizontal loads from being applied to the wall.
  • eccentric beams are installed between the connecting members to remove the horizontal force applied from the braces by using the tension of the PS steel wire, and press the bands to the inner wall to make the temporary masonry construction more stable. It is to provide a connection structure.
  • the support structure of the earthwork temporary construction according to the present invention is disposed across the walls of the earthquake facing each other, and the support beam connected to the band of the earthen wall, and one side is connected to the band. Is connected, the other side is characterized in that it comprises a sloping beam that is installed to open in both sides at the longitudinal end of the brace, and PS (Prestressed) steel wire connecting the sloping beam.
  • the inclined beam characterized in that it comprises a connecting member is installed on the belt, one side is connected to the connection member and the other side is extended frame connected to the brace.
  • the connecting member the horizontal coupling portion which is installed in the transverse direction in the belt; and the inclined connection to the horizontal coupling portion, extending perpendicular to the extension frame, the outer surface in the longitudinal direction of the extension frame
  • a first support frame supporting one end portion and a second support frame inclinedly connected to the horizontal coupling portion and extending to form a straight line with the extension frame, and supporting a longitudinal inner surface of the first support frame; It is characterized by including.
  • the PS steel wire is characterized in that for connecting the inner surface of the first support frame or the outer surface of the second support frame with each other.
  • the PS steel wire is connected to both ends of the PS steel wire so as to be connected in parallel to the connecting member, characterized in that it comprises a fixing connection member is installed on both ends of the PS steel wire.
  • the fixing connection member is characterized in that it has an inclined surface corresponding to the inclination angle of the first support frame or the second support frame.
  • the fixing connection member the horizontal portion and is formed perpendicular to one end of the horizontal portion, characterized in that it comprises a vertical portion formed with the installation hole is installed the PS steel wire.
  • the vertical portion may have a width wider than that of the first support frame or the second support frame to prevent the PS steel wire from being interfered by the first support frame or the second support frame.
  • the PS steel wire is characterized in that it further comprises an eccentric beam protruding to the band between the connecting members to be applied to the inner wall side.
  • the PS steel is characterized in that it is installed through the inner surface and the outer surface of the first support frame.
  • the PS steel is characterized in that it is installed through the inner and outer surfaces of the first support frame and the second support frame.
  • the PS steel wire is characterized in that each is fixed to the outer end of the horizontal coupling portion via a fixing unit.
  • the PS steel wire is applied with a load opposite to the horizontal load to tension the connecting members to apply unnecessary horizontal load to the band.
  • FIG. 1 is a plan view schematically showing a temporary earthquake construction to which the brace connection structure of the earthwork temporary construction according to the present invention is applied.
  • FIG. 2 to 3 is a plan view showing a state in which the PS steel wire is installed in the connecting member according to the present invention.
  • Figure 4 is a perspective view showing a state of the fixing connection member for installing the PS steel wire in accordance with the present invention the connection member.
  • FIG. 5 is a plan view showing an eccentric beam is installed on the band between the connecting members according to the present invention.
  • 6 to 8 are exemplary views showing the appearance of installing the PS steel wire when the eccentric beam is installed in the strip according to the present invention.
  • 9 to 10 is a side view showing the PS steel wire installed through the support frame according to the present invention.
  • FIG 11 is a front view showing a state that the PS steel wire according to the present invention is connected to the support frame via a fixing plate.
  • FIG. 12 is a plan view of the wire-shaped connection structure of the steel pipe support according to the prior art.
  • the reinforcement 100, the inclined beam 300, the connecting member 310, PS steel wire 400 is to be described later, the reinforcement 100, Slope beam 300 is made of an H beam (beam).
  • Figure 1 is a plan view schematically showing the construction of the temporary earthquake is applied to the support structure of the earthquake tent construction according to a preferred embodiment of the present invention.
  • the structure is constructed with a wall of mud walls on the inner wall of the excavated site having a rectangular planar structure, the belt 30 is installed in the transverse direction inside the wall of mud wall.
  • a brace 100 is installed to cross the long sides of the rectangular walls excavated at right angles to support the earth pressure transmitted from the inner wall.
  • a pair of inclined beams 300 are provided at both ends of the brace 100 in the longitudinal direction to support the belt 30 and the connection structure in an inclined state at both sides so as to have a substantially triangular shape.
  • the strip 30 may use a single strip or double strip according to the size of the excavated rotor, the strip 30 may be installed with the IPS member and PS steel wire to correspond to the moment of earth pressure.
  • the brace 100 may be provided with a jack (not shown) for applying a load to both ends of the brace 100 in the longitudinal center portion so that the earth pressure transmitted from the inner wall is supported.
  • FIG. 2 to 3 is a plan view showing a state in which the PS steel wire is installed in the connecting member according to the present invention.
  • connection block 10 has a substantially isosceles triangle.
  • connection block 10 two surfaces having the same slope in different directions among the three surfaces of the connection block 10 are connected to the other end of the inclined beam 300, and the other one surface is the buttress beam 100. Is connected to.
  • the inclined beam 300 is opened with the same inclination in different directions with respect to the brace 100.
  • the inclined beam 300 is composed of a connecting member 310 installed in the belt 30, and an extension frame 320 connected to the connecting member 310, as shown in Figure 2 to FIG. do.
  • connection member 310 one side end of the inclined beam 300 that is open to both sides is connected to the band through the connection member 310, respectively, such a connection member 310, PS steel wire 400 is installed to connect the connection member 310 Forces to pull between each other, that is, tension is generated.
  • the tension generated between the connecting members 310 by the PS steel wire 400 serves to cancel the horizontal component acting on both sides in accordance with the load applied to the inner wall in the brace 100.
  • the load applied from both ends of the brace 100 to the connecting member 310 is a vertical component acting on the inner wall side and a horizontal component acting on the outside of the connecting member 310. exist.
  • the reason why the vertical component and the horizontal component are generated as described above is because the inclined beam 300 is inclined at a predetermined angle to the brace 100.
  • the connecting member 310 is a horizontal coupling portion 311 connected to the band 30, and the first support frame 312 and the second inclined in the opposite direction to the horizontal coupling portion 311 and the second
  • the combined shape of the support frame 313 is generally triangular.
  • the first support frame 312 is formed to extend perpendicular to the extension frame 320 so that the outer surface in the longitudinal direction supports the other end of the extension frame 320, the second support frame 313 is an inclined beam Extended to form a line with the 300 to support the inner surface of the first support frame 312.
  • the load applied from the brace 100 by the second support frame 313 forming a straight line with the inclined beam 300 may be applied to the connection member 310.
  • the PS steel wire 400 is installed on the inner side of the first support frame 312, as shown in Figure 2, or installed on the outer side of the second support frame 313 as shown in FIG. Can be.
  • the length of the PS steel wire 400 is the same as being installed on the outer side of the second support frame 313 than the inner side of the first support frame 312 has a greater tension.
  • the PS steel wire 400 is installed in the first support frame 312 or the second support frame 313 It is preferable to install in a parallel state. Accordingly, it is preferable that separate fixing connection members 500 are provided at both ends of the PS steel wire 400 installed on the inner surface of the first support frame 312 or the outer surface of the second support frame 313. .
  • the fixing connecting member 500 has an inner side surface of the first supporting frame 312 or an outer side surface of the second supporting frame 313 tilted. It has an inclined surface 510 corresponding to the angle of inversion.
  • the inclined surface 510 as described above is installed on the inner surface of the first support frame 312 and the outer surface of the second support frame 313 so that the PS steel wire 400 is installed in parallel with the connection member 310. Allow you to maintain tension.
  • the fixing connection member 500 is provided with a horizontal portion 501 and a vertical portion 502 formed perpendicular to one end of the horizontal portion 501.
  • the horizontal portion 501 is formed extending in the same direction as the direction in which the tension force of the PS steel wire 400 acts
  • the vertical portion 502 is formed with an installation hole 520 in which the PS steel wire 400 is fixed and installed do.
  • the width of 501 may be adjusted.
  • the width of the vertical portion 502 is made wider than the first support frame 312 or the second support frame 313 and the position of the installation hole 520 to adjust the PS steel wire 400 and the first support Interference with the frame 312 or the second support frame 313 may be prevented.
  • FIG. 5 is a plan view showing an eccentric beam 600 installed on the belt 30 between the connection members 310 described above. As shown in FIG. 5, between the connection members 310 is shown. When the eccentric beam 600 is installed in the strip, the tension force of the PS steel wire 400 acts on the inner wall side.
  • the eccentric beam 600 is installed in the strip 30, protruding toward the brace 100 is formed to press the strip 30 in the same principle as the bow demonstration, the press strip 30 is to pressurize the inner wall to earth pressure Support.
  • both ends of the PS steel wire 400 are anchored connection members shown in FIG. 4. It may be fixed using the (500). However, as shown in FIGS. 6 to 8, the fixing member 700 may be fixed to various places through the connection member 310.
  • both ends of the PS steel wire 400 are fixed to an inner side surface of the first support frame 312, or as shown in FIG. 7, both ends of the PS steel wire 400 are second to each other. It may be fixed to the outer surface of the support frame 313.
  • first support frame 312 or the second support frame 313 may be installed through the flange (flange) (F) portion.
  • the PS steel wire 400 is fixed by using a separate fixing plate 710 on the outside of the flange (F) of the support frame (313).
  • a separate fixing plate 710 on the outside of the flange (F) of the support frame (313).
  • the PS steel wire 400 may be fixed, or two L-shaped steels may be bolted to each other on a web (W) portion of the first support frame 312 or the second support frame 313.
  • both ends of the PS steel wire 400 may be fixed to the outer end of the horizontal coupling portion 311.
  • the end of the PS steel wire 400 is provided with a fixing device 700 to play the same role as the above-described fixing connection member 500 is fixed to the outer end of the horizontal coupling portion 311, the fixing device 700 It will be good to cover the cap 701 to the outside of the) to protect the coupling portion.
PCT/KR2014/006596 2013-07-19 2014-07-21 흙막이 가시설 공사의 버팀보 연결구조 WO2015009124A1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480041067.8A CN105431593A (zh) 2013-07-19 2014-07-21 挡土墙临时设施施工的撑杆连接结构
JP2016527945A JP2016528406A (ja) 2013-07-19 2014-07-21 土留め仮施設工事の切梁連結構造

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0085430 2013-07-19
KR1020130085430A KR20150010419A (ko) 2013-07-19 2013-07-19 흙막이 가시설 공사의 버팀보 연결구조

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WO2015009124A1 true WO2015009124A1 (ko) 2015-01-22

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JP (1) JP2016528406A (ja)
KR (1) KR20150010419A (ja)
CN (1) CN105431593A (ja)
WO (1) WO2015009124A1 (ja)

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Publication number Priority date Publication date Assignee Title
CN107675712A (zh) * 2017-09-05 2018-02-09 广州宏途设备工程有限公司 一种工具式大跨度钢管支撑结构
US10711423B2 (en) 2017-11-22 2020-07-14 Dongtong Geotechnical Science and Technology Inc. Structural steel inner support system in foundation pit
CN111424676A (zh) * 2020-03-31 2020-07-17 中国一冶集团有限公司 一种主体框架梁换撑结构及施工方法

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KR101708825B1 (ko) 2016-07-08 2017-03-08 안성근 가변형 흙막이 벽체 지지모듈
KR102070298B1 (ko) * 2017-11-30 2020-01-28 건국대학교 산학협력단 토류판용 지지클램프 및 h파일-지지클램프 조립체
CN115217116B (zh) * 2022-07-22 2023-12-15 江苏索普工程科技有限公司 一种组合式型钢支撑护件及其使用方法

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US10711423B2 (en) 2017-11-22 2020-07-14 Dongtong Geotechnical Science and Technology Inc. Structural steel inner support system in foundation pit
CN111424676A (zh) * 2020-03-31 2020-07-17 中国一冶集团有限公司 一种主体框架梁换撑结构及施工方法
CN111424676B (zh) * 2020-03-31 2022-05-10 中国一冶集团有限公司 一种主体框架梁换撑结构及施工方法

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JP2016528406A (ja) 2016-09-15
CN105431593A (zh) 2016-03-23
KR20150010419A (ko) 2015-01-28

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