US20140332659A1 - Wedging system for transmitting loads from a formwork to the land - Google Patents

Wedging system for transmitting loads from a formwork to the land Download PDF

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Publication number
US20140332659A1
US20140332659A1 US14/368,529 US201214368529A US2014332659A1 US 20140332659 A1 US20140332659 A1 US 20140332659A1 US 201214368529 A US201214368529 A US 201214368529A US 2014332659 A1 US2014332659 A1 US 2014332659A1
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US
United States
Prior art keywords
transmitting
bar
base
loads
lower area
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.)
Abandoned
Application number
US14/368,529
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English (en)
Inventor
Enrique Tichell Fortea
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rubrica Ingenieria y Arquitectura SL
Original Assignee
Rubrica Ingenieria y Arquitectura SL
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 Rubrica Ingenieria y Arquitectura SL filed Critical Rubrica Ingenieria y Arquitectura SL
Assigned to RUBRICA INGENIERIA Y ARQUITECTURA, S.L. reassignment RUBRICA INGENIERIA Y ARQUITECTURA, S.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TICHELL FORTEA, ENRIQUE
Publication of US20140332659A1 publication Critical patent/US20140332659A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/001—Corner fastening or connecting means for forming or stiffening elements
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
    • E04G17/0655—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
    • E04G2017/0609—

Definitions

  • the present invention relates to a wedging system for the base of a formwork.
  • the wedging system is in charge of transmitting the loads generated during the concreting of a lining of bored tunnels or galleries to the base of a concreted section.
  • the invention is applicable to the formwork of bored tunnels within the field of civil works, especially in the field of the execution of tunnels or galleries.
  • Different phases are executed during the construction of a tunnel, which are well differentiated and are executed according to an order, such that certain phases are executed after certain others, the subsequent phases being supported by the works that were carried out before.
  • the order of execution of the different phases is followed in a precise manner during the execution of the tunnel in order for the construction to be carried out safely and on time.
  • the first phase of the construction is the bench excavation of the section of the tunnel, with the execution of the lower part of the section (the inverted arch), in the first place, and then, in the second phase, the execution of the laterals (side walls) and the upper part (arch) of the section, which are executed together.
  • a formwork in charge of maintaining the shape of the section of the tunnel is used in order to execute the arch and the side walls, which, during the concreting of this section, must withstand the loads generated by the weight of the liquid concrete and transmit them to a part of the first phase having the capacity to withstand said loads.
  • the object of the invention is to propose a simple element that is easy to handle and place and that carries out point supports for the transmission of loads, this is why it can be adapted to irregularities of the earth or the footing where the loads are transmitted in said transmission.
  • the invention consists of a wedging system for transmitting loads from formwork to the land, which rests on point supports and can be adapted to irregularities of the earth wherein it rests in order to modify the crown height of the formwork.
  • the element of the wedging system for transmitting loads in formwork to the surrounding earth comprises, in the transmission of vertical loads, a supporting member, a threaded bar for transmitting vertical load, a nut, and a base.
  • the base in turn comprises a plate with a perforation, and a change of section in the lower area.
  • the bar for transmitting vertical load is secured to the supporting member, the supporting member being affixed to a side wall of the formwork.
  • the relative movement between the base and the supporting member is prevented by means of the insertion of the bar for transmitting vertical load into the perforation in the plate of the base and by screwing the nut into the upper end of the bar for transmitting vertical load, thereby achieving the transmission of the loads generated in the formwork to the land.
  • the lower area of the base changes its shape section, thereby having two different sections according to two embodiments of the object of the invention.
  • the wedging system comprises two bars for transmitting horizontal load, parallel to each other, the lower area of the base itself with a circular section, two clamps, a perforated bar and at least two nuts for each bar for transmitting horizontal load.
  • the perforated bar is embedded in the base of the concrete section and a clamp is placed on the lower area of the base, clamping it from the outside, while the other clamp is placed on the perforated bar, the two clamps being joined by means of the bars for transmitting horizontal load and the nuts inserted into the ends of each bar for transmitting horizontal load.
  • the wedging system comprises a bar for transmitting horizontal load, a lower area of the base with a hollow square section inside with an indentation for the passage of the bar, a baseplate, a capped nut, a perforated bar with a through-hole, and a nut.
  • the lower area of the base in this second embodiment and as mentioned above, has a hollow square section and there is an indentation of said section in two of its walls, through which the bar for transmitting horizontal load goes through.
  • the bar for transmitting horizontal load is inserted into the through-hole of the perforated bar and in the indentation of the lower area of the base.
  • the baseplate is placed on the lower area of the base and the capped nut on the baseplate, such that the relative position of the lower area of the base is fixed with respect to the perforated bar by means of the insertion of a nut into the end of the bar for transmitting horizontal load corresponding to the perforated bar and by inserting the capped nut into the baseplate on the other side of the bar for transmitting horizontal load.
  • the wedging system for transmitting loads in formwork to the surrounding earth comprises a wedge wherein the lower area of the base rests, said wedge being fastened to the footing of the concrete section, such that it transmits the horizontal loads to the footing.
  • the wedge of the wedging system for transmitting loads in formwork to the surrounding earth comprises two symmetrical pieces facing each other with a common face, said common face presenting a supporting area of the lower area of the base and a threaded bar, with a nut screwed into each end.
  • the geometry of the wedge is adapted until it enters into contact with the lower area of the base.
  • a special piece is used in the outer part of the curve, which constitutes a third embodiment of the invention composed of two perforated bars, two metal profiles facing each other and secured to each other making up a beam, two clamps, two bars for transmitting horizontal load and two nuts; the two perforated bars, which have been embedded in the footing of the concrete section, are affixed to the beam formed by the two metal profiles; the beam incorporates, in one end, two clamps.
  • One of the clamps slides through a segment of the beam and the other is joined to the first through the bars for transmitting horizontal load, limiting the relative movement between both clamps by means of nuts placed in the bars for transmitting horizontal load; the lower area of the base is inserted between said clamps, which in this embodiment has a circular section.
  • FIG. 1 is a perspective view of a concrete section of a tunnel with a first embodiment of the wedging system object of the invention, located at the site of use.
  • FIG. 2 is a perspective view of the wedging system of FIG. 1 .
  • FIG. 3 is a frontal view of the wedging system according to a first embodiment.
  • FIG. 4 is a perspective exploded view of the wedging system of FIG. 1 .
  • FIG. 5 is a perspective view of a second embodiment of the wedging system object of the invention.
  • FIG. 6 is a perspective exploded view of the wedging system of FIG. 5 .
  • FIG. 7 is a perspective view of the wedging system in the embodiment used for the transmission of horizontal loads in the outer part of the tunnel in curved sections.
  • FIG. 8 shows an exploded view of the third embodiment of the wedging system object of the invention.
  • FIG. 9 shows a lateral view of the embodiment of FIG. 8 .
  • the invention discloses a system placed at the base of the formwork of the lining of a tunnel executed under the bored tunnel procedure, which transmits the loads generated during the concreting of the second phase of the section of the tunnel to the first phase, which is already executed in the bored construction procedure.
  • the object of the invention comprises a telescopic base ( 1 ) in charge of the transmission of vertical loads to the footing ( 8 ), and, together with at least one bar for transmitting horizontal load ( 5 ) and one perforated bar ( 6 ), of the transmission of horizontal loads to the same footing ( 8 ).
  • the formwork of the second phase of the tunnel is formed by a series of ribs, joined at the inside, and at the outside by a smooth surface whereupon the concreting takes place.
  • the object of the invention has three alternative embodiments used for the construction of straight tunnel segments, and a fourth additional embodiment, compatible with the first two, used for the execution of curved tunnel segments.
  • the transmission of loads is carried out through point supports, in individual pieces, and in the embodiment used for the execution of curved segments, the support for the transmission of loads is carried out in two points.
  • each individual piece has one supporting member ( 3 ) through which inside a base ( 1 ) with a square section moves, and which section varies in the lower area ( 1 ′) of the base ( 1 ).
  • the lower area ( 1 ′) of the base ( 1 ) is the area of the base ( 1 ) wherein the support in the land or in the footing ( 8 ) of the concrete section takes place, and therefore, the one that transmits the vertical loads to said land or footing ( 8 ).
  • the supporting member ( 3 ) incorporates a bar for transmitting vertical load ( 2 ) affixed to the supporting member ( 3 ).
  • the bar for transmitting vertical load ( 2 ) is threaded at least in its upper part.
  • the base ( 1 ) has a plate ( 9 ) with a perforation ( 10 ) in its upper part.
  • the bar for transmitting vertical load ( 2 ) affixed to the supporting member ( 3 ) is inserted into the perforation ( 10 ) of the plate ( 9 ), and a nut ( 11 ) is inserted into the threaded area of the aforementioned bar for transmitting vertical load ( 2 ), which prevents the movement of the base ( 1 ) with respect to the supporting member ( 3 ).
  • the invention is affixed to the ribs of the formwork of the side wall ( 7 ), either by means of screws ( 17 ) incorporated in the supporting member ( 3 ), or by means of a welded joint. Said joint limits the movement of the base ( 1 ) with respect to the supporting member ( 3 ), the vertical loads received by the supporting member ( 3 ) are transmitted to the base ( 1 ) through the bar for transmitting vertical load ( 2 ) and the base ( 1 ) transmits them to the concrete footing ( 8 ) of the section of the tunnel.
  • the invention has three different embodiments for transmitting horizontal loads, even though the operation is very similar in the three embodiments.
  • an element for transmitting the horizontal load generated in the formwork of the side wall ( 7 ) of the tunnel is placed (two variations of the element transmitting the horizontal load generate two embodiments of the invention, which are exposed below).
  • Said load is transmitted to a perforated bar ( 6 ), which has been previously embedded in the concrete footing ( 8 ) of the section of the tunnel.
  • the horizontal load is transmitted through two bars for transmitting horizontal load ( 5 ) placed in parallel on the two sides of the lower area of the base ( 1 ′), which in this embodiment has a circular section.
  • a clamp ( 4 ) is placed, which joins the two bars for transmitting horizontal load ( 5 ) and rests on the part of the base ( 1 ) with a circular section ( 1 ′), and at the other end of the bars for transmitting horizontal load ( 5 ), another clamp ( 4 ) is placed, which rests on the perforated bar ( 6 ) embedded in the concrete footing ( 8 ).
  • each bar for transmitting horizontal load ( 5 ) two nuts ( 12 ) are inserted into the outside of the clamps ( 4 ), on per end, such that the clamps affix the base ( 1 ) and the perforated bar ( 6 ), and, through the bars for transmitting horizontal load ( 5 ), the horizontal load generated in the side wall ( 7 ) of the tunnel is transmitted to the perforated bar ( 6 ) located in the concrete footing ( 8 ) of the section of the tunnel.
  • the horizontal load is transmitted through a single bar for transmitting horizontal load ( 5 ) passing through the centre of the lower area ( 1 ′) of the base ( 1 ′) through an indentation ( 15 ) and through the perforated bar ( 6 ), there being a through-hole ( 16 ) in the aforementioned perforated bar ( 6 ).
  • the lower area of the base ( 1 ′) in this embodiment has a hollow square section.
  • a nut ( 11 ) is inserted Into one end of the bar for transmitting horizontal load ( 5 ), specifically in the end corresponding to the perforated bar ( 6 ), said nut ( 11 ) rests on the perforated bar ( 6 ), and into the other end, which corresponds to the base ( 1 ), a baseplate ( 13 ) and a capped nut ( 14 ) are inserted, such that the baseplate ( 13 ) rests on the aforementioned base ( 1 ).
  • the curved shape of the capped nut ( 14 ) and of its place in the cavity of the plate ( 13 ) allows small misalignments between the bar for transmitting horizontal load ( 5 ) and the perpendicular of the baseplate ( 13 ).
  • the first embodiment also allows misalignments due to the round section of the lower area of the base ( 1 ′), the perforated bar ( 6 ), and the clamps ( 4 ).
  • FIGS. 8 and 9 a third embodiment of the invention has been developed (shown in FIGS. 8 and 9 ).
  • the horizontal load is transmitted by means of the support of the lower area of the base ( 1 ′) on a wedge ( 21 ), said wedge ( 21 ) resting on the inner wall ( 20 ) of the section of the tunnel.
  • the wedge ( 21 ) is formed by two symmetrical pieces ( 22 ) facing each other by a common face, which in turn presents a supporting area ( 23 ) of the lower area of the base ( 1 ′).
  • a threaded bar ( 24 ) passes through the inside of the two symmetrical pieces ( 22 ) with a nut ( 25 ) being screwed into each end, thereby adapting the geometry of the wedge ( 21 ) until it enters into contact with the lower area of the base ( 1 ′).
  • FIG. 7 For the execution of curved segments, there is a fourth embodiment (shown in FIG. 7 ), which is placed in the outer side of the curve to be executed.
  • the invention is formed by two perforated bars ( 6 ), joined to each other by means of two metal profiles ( 18 ).
  • the two metal profiles ( 18 ) face each other and are affixed to each other by forming a hollow beam ( 19 ).
  • a first sliding clamp ( 4 ) in one end of the beam ( 19 ) formed by the metal profiles ( 18 ) there is a first sliding clamp ( 4 ) in a segment between the metal profiles ( 18 ).
  • first clamp ( 4 ) Facing the first clamp ( 4 ) there is a second clamp ( 4 ), joined to the first through two bars for transmitting horizontal load ( 5 ), the relative movement between the clamps ( 4 ) being limited by means of two nuts ( 12 ) placed in the end of the bars for transmitting horizontal load ( 5 ).
  • the lower area ( 1 ′) of the base ( 1 ) is inserted between the two clamps ( 4 ), which in this embodiment has a circular section.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
US14/368,529 2011-12-29 2012-10-29 Wedging system for transmitting loads from a formwork to the land Abandoned US20140332659A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES201132129A ES2416832B1 (es) 2011-12-29 2011-12-29 Sistema de calce para transmitir las cargas de un encofrado al terreno.
ESP201132129 2011-12-29
PCT/ES2012/070756 WO2013098444A1 (fr) 2011-12-29 2012-10-29 Système de cale pour transférer les charges d'un coffrage au terrain

Publications (1)

Publication Number Publication Date
US20140332659A1 true US20140332659A1 (en) 2014-11-13

Family

ID=48696383

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/368,529 Abandoned US20140332659A1 (en) 2011-12-29 2012-10-29 Wedging system for transmitting loads from a formwork to the land

Country Status (6)

Country Link
US (1) US20140332659A1 (fr)
EP (1) EP2799664B1 (fr)
CO (1) CO6980650A2 (fr)
ES (1) ES2416832B1 (fr)
MX (1) MX2014007856A (fr)
WO (1) WO2013098444A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9909300B2 (en) 2016-03-16 2018-03-06 Toyota Motor Engineering & Manufacturing North America, Inc. Truss clamp assemblies
US10745907B1 (en) * 2017-06-21 2020-08-18 Timothy William Canby Rolling block restraint connector for external restraint moment connections
US11078661B2 (en) 2019-10-04 2021-08-03 Timothy William Canby Rolling block restraint connector having an improved linkage assembly
CN115467510A (zh) * 2022-08-24 2022-12-13 江苏华邦建设有限公司 剪力墙支模系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6193442B1 (en) * 1999-03-16 2001-02-27 Donald R. May Method and device for raising and supporting a building foundation
US6655875B1 (en) * 2002-08-29 2003-12-02 Glenn Pignato Pier adjusting mechanism and method for facilitating the adjusting and leveling of a pier platform
US20120004659A1 (en) * 2010-07-01 2012-01-05 Extraortho, Inc. Multi-Locking External Fixation Clamp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997853A (en) * 1958-07-14 1961-08-29 Maxwell F Kemper Apparatus for driving tunnels
FR1502024A (fr) * 1966-10-04 1967-11-18 Perfectionnements aux coffrages autoporteurs démontables pour construction de galeries en béton
GB1487138A (en) * 1976-02-24 1977-09-28 Kenny P Construction of steel re-inforced concrete columns
SU812929A1 (ru) * 1978-01-06 1981-03-15 Специальное Конструкторско-Технологическоебюро "Главтоннельметростроя" Опалубка передвижна
US4450666A (en) * 1982-08-26 1984-05-29 Clayburn Refractories, Inc. Econo bricking ring
FR2691204A1 (fr) * 1992-05-13 1993-11-19 Al Cant Coffrages Dispositif de coffrage pour la réalisation d'une paroi en béton notamment d'un tunnel.
US6629681B1 (en) * 2000-02-18 2003-10-07 Metal Forms Corporation Flexible form assembly
HRP20050537A2 (en) * 2005-06-13 2007-03-31 Planinc Robert System for placing preformed secondary lining for tunnels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6193442B1 (en) * 1999-03-16 2001-02-27 Donald R. May Method and device for raising and supporting a building foundation
US6655875B1 (en) * 2002-08-29 2003-12-02 Glenn Pignato Pier adjusting mechanism and method for facilitating the adjusting and leveling of a pier platform
US20120004659A1 (en) * 2010-07-01 2012-01-05 Extraortho, Inc. Multi-Locking External Fixation Clamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9909300B2 (en) 2016-03-16 2018-03-06 Toyota Motor Engineering & Manufacturing North America, Inc. Truss clamp assemblies
US10745907B1 (en) * 2017-06-21 2020-08-18 Timothy William Canby Rolling block restraint connector for external restraint moment connections
US11078661B2 (en) 2019-10-04 2021-08-03 Timothy William Canby Rolling block restraint connector having an improved linkage assembly
CN115467510A (zh) * 2022-08-24 2022-12-13 江苏华邦建设有限公司 剪力墙支模系统

Also Published As

Publication number Publication date
EP2799664B1 (fr) 2017-06-14
ES2416832A1 (es) 2013-08-02
MX2014007856A (es) 2015-08-10
EP2799664A1 (fr) 2014-11-05
EP2799664A4 (fr) 2016-07-20
ES2416832B1 (es) 2014-06-03
WO2013098444A1 (fr) 2013-07-04
CO6980650A2 (es) 2014-06-27

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AS Assignment

Owner name: RUBRICA INGENIERIA Y ARQUITECTURA, S.L., SPAIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TICHELL FORTEA, ENRIQUE;REEL/FRAME:033410/0649

Effective date: 20140722

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION