EP0785317A1 - Method for dimensioning reinforcement elements for reinforced concrete beams - Google Patents

Method for dimensioning reinforcement elements for reinforced concrete beams Download PDF

Info

Publication number
EP0785317A1
EP0785317A1 EP96904103A EP96904103A EP0785317A1 EP 0785317 A1 EP0785317 A1 EP 0785317A1 EP 96904103 A EP96904103 A EP 96904103A EP 96904103 A EP96904103 A EP 96904103A EP 0785317 A1 EP0785317 A1 EP 0785317A1
Authority
EP
European Patent Office
Prior art keywords
reinforcements
bars
reinforcement
reinforced concrete
sub
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.)
Withdrawn
Application number
EP96904103A
Other languages
German (de)
English (en)
French (fr)
Inventor
Isabel Merino Garay Olatz
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.)
Individual
Original Assignee
Individual
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
Priority claimed from ES9500414A external-priority patent/ES2124117B1/es
Priority claimed from ES9600182A external-priority patent/ES2124161B1/es
Application filed by Individual filed Critical Individual
Publication of EP0785317A1 publication Critical patent/EP0785317A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E04C5/0609—Closed cages composed of two or more coacting cage parts, e.g. transversally hinged or nested parts

Definitions

  • the reinforcement for reinforced concrete beams has been calculated in terms of width, height, length and the number and diameter of upper bars, which are generally the same length as the beam, and by the number and diameter of the bottom lengthwise bars, some of which may be the same length as the beam, and others, the so-called strengthening bars, which may be shorter.
  • a beam also has stirrups, defined by their width and height, the number of vertical sections, the diameter of the bars with which they are made, and their spacing.
  • Both the diameter and the number of vertical sections and the spacing between stirrups may alter along the beam: in general, diameters are greater and the numbers of vertical sections largest, with the shortest spacing, close to the beam end rather than in the centre.
  • standard reinforcement for a reinforced concrete beam may have several top lengthwise bars, several bottom lengthwise bars of the same length as the so-called strengthening bars, and the stirrups, which may be of several vertical sections of variable width, height and spacing.
  • the bar diameter may be any of those in the usual range for construction though, normally, the upper bars are between 6 and 12 mm and the lower bars between 8 and 25 mm, while the stirrups are between 6 and 12 mm.
  • Beam reinforcement is dimensioned to meet the conditions imposed by the design calculation also taking account of the construction of its component elements.
  • the design of the stirrups whether in manual equipment or automatic programmable machines, means that the upper and lower horizontal sections of the transversal reinforcements must have the same diameter and spacing as the vertical sections when, for calculation purposes, they can be of a smaller diameter and significantly more spaced than the vertical sections.
  • the technology familiar until now is thus rendered obsolete, given the novelty of this invention described below.
  • Nothing similar has been known until now and it involves major savings of materials and the possible prefabrication of reinforcement, with great space saving. Therefore, in this method, we propose dimensioning of the vertical and transversal reinforcement and of the upper and lower horizontal sections independently, to provide a significant saving in the materials used to manufacture reinforcements.
  • the main elements of the reinforcement for reinforced concrete beams and pillars based on the foregoing dimensioning procedure are: a sub-reinforcement known as the grill, and the upper and lower horizontal bars of the transversal reinforcement.
  • the reinforcement is designed as a set of sub-reinforcements each comprising a top and bottom bar welded together or attached by any other means by a number of vertical sections.
  • these sub-reinforcements are linked by the top and bottom horizontal sections of the transversal reinforcement, which is generally of a smaller diameter than the vertical sections of the grills, and more spaced in the case of reinforcement for reinforced concrete beams.
  • the reinforcement is completed with the bottom bars, some of which are as long as the beam and others which are shorter than the beam: these are the so-called strengthening bars. See figures 1 and 2 for a better understanding of the foregoing.
  • the concrete beam reinforcement comprises the grills 1-1'-1R, 2-2'-2R, and 3-3'-3R which have a top bar and a bottom bar and several vertical sections joined by the upper horizontal bars Hs and lower horizontal bars Hi, along with two bottom bars the same length as the beam, nos. 4 and 5, and a bottom strengthening bar -6- of length l.
  • the vertical sections of the transversal reinforcement are made independent of the horizontal sections, and the diameter and spacing of the vertical sections can be combined to optimize the use of the materials. Moreover, because the horizontal bars Hs and Hi are independent of the vertical sections, they can be of a smaller diameter and more separated, with the resulting saving of materials.
  • Sub-reinforcement is the link between a top and bottom lengthwise bar by means of several vertical transversal bars (see Figs. 3 or 4 by way of illustration, without limitation).
  • a grill of height H and Length L can be used to form beams of any width.
  • the diameters of the top and bottom bars of the grill and the transversal bars vary only slightly for beams of Length L, meaning that the grills can be prefabricated, taking up very little space.
  • the upper and lower horizontal bars of the transversal section are the other necessary elements for the construction of the beams; their length normally varies by 5 cm steps, as the width of the beams and pillars and the usualy diameters are 6 and 8 mm. They can thus be made in high-performance automatic straightener-cutter machinery and stored in very limited space.
  • This invention proposes the concept of constructing the reinforcement for reinforced concrete beams and pillars using pre-fabricated elements stored in a small space and making it possible to combine them to form all types of reinforcement for reinforced concrete beams and pillars quickly and economically.
  • These basic components are as follows: the sub-reinforcement known as the grill, and the top and bottom bars of the transversal reinforcement.
  • the transversal bars are placed over rather than between the lengthwise top and bottom bars and are welded together or joined by any other means.
  • This modification facilitates automatic production of the sub-reinforcement or grill.
  • a further improvement to this variant consists of the replacement when convenient for the calculation or production of the top and bottom transversal reinforcement by the sub-reinforcement or grill defined in figures 7 and 8, making it possible to construct the reinforcement for reinforced concrete beams and pillars as indicated in figures 5 and 6, by a combination of sub-reinforcement (grills) 1-1'-1R, 2-2'-2R, and 3-3'-3R placed in the vertical position, with other sub-reinforcement (grills) 4-4'-Hs -5-5'-Hi placed horizontally and welded together or joined by any other means.
  • the reinforcement is completed with the long free bottom bars 6 and 8 and the short free bar 7 (see figures 5 and 6).
  • grills in figures 9 and 10 Another variant of the sub-reinforcement known as grills in figures 9 and 10 is differentiated from the grills described above in that the transversal bars are joined to the longitudinal bars by welding or by any other means, and all or some of them are bent over the longitudinal bars to form a hook.
  • This modification provides greater strength to the connection of the transversal bars, with the lengthwise components of the sub-reinforcement (bars) where and when necessary to the calculation: the strength of the welding is added to that of the hook in its anchoring in the concrete.
  • a reinforced concrete beam reinforcement is drawn (figures 13 and 14) combining the sub-reinforcement described according to figures 9 and 10, in the vertical position 1-1'-1R, 2-2'-2R, and 3-3'-3R, with the sub-reinforcement described according to figures 7 and 8 placed horizontally at the bottom 4-4'-Hi and with the free horizontal bars in the top horizontal position Hs.
  • the reinforcement is completed, by way of example and without limitation, with the bottom lengthwise bars 5 and 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)
EP96904103A 1995-03-02 1996-03-01 Method for dimensioning reinforcement elements for reinforced concrete beams Withdrawn EP0785317A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
ES9500414 1995-03-02
ES9500414A ES2124117B1 (es) 1995-03-02 1995-03-02 Metodo de dimensionamiento de armaduras para vigas de hormigon armado.
ES9500637A ES2124122B1 (es) 1995-03-02 1995-03-30 Mejoras introducidas en la patente principal numero 9500414: del metodo de dimensionamiento de armaduras para vigas de hormigon armado.
ES9500637 1995-03-30
ES9600182A ES2124161B1 (es) 1995-03-02 1996-01-26 Mejoras introducidas en la patente principal num. 9500414, y del primer certificado de adicion num. 9500637, sobre: metodo de dimensionado de armaduras para vigas de hormigon armado.
ES9600182 1996-01-26
PCT/ES1996/000044 WO1996027062A1 (es) 1995-03-02 1996-03-01 Metodo de dimensionamiento de armaduras para vigas de hormigon armado

Publications (1)

Publication Number Publication Date
EP0785317A1 true EP0785317A1 (en) 1997-07-23

Family

ID=27240525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96904103A Withdrawn EP0785317A1 (en) 1995-03-02 1996-03-01 Method for dimensioning reinforcement elements for reinforced concrete beams

Country Status (8)

Country Link
EP (1) EP0785317A1 (pt)
JP (1) JPH09512602A (pt)
CN (1) CN1121540C (pt)
AU (1) AU4832396A (pt)
BR (1) BR9606236A (pt)
MX (1) MX9605275A (pt)
PL (1) PL317066A1 (pt)
WO (1) WO1996027062A1 (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770228A2 (en) * 2005-09-28 2007-04-04 Megaray, S.L. Rebar reinforcement for reinforced concrete beams
CN102021600A (zh) * 2010-12-21 2011-04-20 北京化工大学 一种利用氧阴极无隔膜电解生产碘酸钾的方法及装置
DE102018131066A1 (de) * 2018-12-05 2020-06-10 Max Bögl Modul AG Bewehrung, Betonelement, Modulverbindung, Modulblock sowie Gebäude

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296773C2 (de) * 1965-03-03 1973-08-23 Badische Stahlwerke Schubsicherungsbuegel fuer Stahlbetonbauteile
DE2015952A1 (de) * 1970-04-03 1971-10-21 Doganoff, Dr.-Ing. IHa, 8000 München Vorgefertigte Bewehrung für Bauteile aus Stahlbeton
BE766864R (fr) * 1970-05-12 1971-10-01 Oroschakoff Georgi Armatures pour constructions et beton
DE2255137C3 (de) * 1972-11-10 1975-12-04 Rehm, Gallus, Prof. Dr.-Ing., 8000 Muenchen Vorgefertigte Schubbewehrung für Stahlbeton- und Spannbetonbalken
EP0517107A1 (en) * 1991-06-06 1992-12-09 Hayashi Seiko Co., Ltd. Ferroconcrete constructing frame

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9627062A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770228A2 (en) * 2005-09-28 2007-04-04 Megaray, S.L. Rebar reinforcement for reinforced concrete beams
EP1770228A3 (en) * 2005-09-28 2009-01-21 Megaray, S.L. Rebar reinforcement for reinforced concrete beams
CN102021600A (zh) * 2010-12-21 2011-04-20 北京化工大学 一种利用氧阴极无隔膜电解生产碘酸钾的方法及装置
DE102018131066A1 (de) * 2018-12-05 2020-06-10 Max Bögl Modul AG Bewehrung, Betonelement, Modulverbindung, Modulblock sowie Gebäude

Also Published As

Publication number Publication date
MX9605275A (es) 1997-12-31
CN1150462A (zh) 1997-05-21
JPH09512602A (ja) 1997-12-16
PL317066A1 (en) 1997-03-03
CN1121540C (zh) 2003-09-17
AU4832396A (en) 1996-09-18
WO1996027062A1 (es) 1996-09-06
BR9606236A (pt) 1997-09-23

Similar Documents

Publication Publication Date Title
US3885369A (en) Structural element
CA2156453A1 (en) Method of Reinforcing Wood Beams and Wood Beams Made Therefrom
US5682717A (en) Prefabricated support elements and method for implementing monolithic nodes
EP0785317A1 (en) Method for dimensioning reinforcement elements for reinforced concrete beams
US4128980A (en) Reinforced concrete construction
CN108343176A (zh) 预制装配式混合剪力墙结构
JPH042725B2 (pt)
DE3479825D1 (en) Reinforcing cage for the space reinforcement of concrete structures
WO2006118528A1 (en) Method for production of a floor structure of steel and concrete
CN111691548A (zh) 预制构件的上下层连接结构和方法
US4982549A (en) Method for end to end coupling prefabricated elements of reinforced concrete
CN207633187U (zh) 一种基于超高性能混凝土连接的整体化空心板桥梁结构
CN215484082U (zh) 成型钢筋骨架及应用其的楼板、无梁楼盖和桩基承台
FR2416986A1 (fr) Cage d'armatures pour poutre en beton arme et procede pour la fabrication de cette cage
DE19815100A1 (de) Verfahren zur Herstellung einer Deckenkonstruktion sowie modulares Gewölbesystem zur Durchführung des Verfahrens
NO172505B (no) Gitterbjelke
US6216412B1 (en) Method for the reinforcement of reinforced concrete and reinforcement for use thereof
DE19710564A1 (de) Verfahren zur Herstellung des Tragwerks eines vorgefertigten, transportablen Mauerteils
CN112942679B (zh) 一种可实现标准化的预制混凝土框架梁及其施工方法
CN213014714U (zh) 预制构件的上下层连接结构
CN211735793U (zh) 叠合柱与楼板的连接节点
CN214833467U (zh) 半钢骨梁组件
CN106760115A (zh) 一种轻质装配式组合楼板及其施工方法
SU1709043A1 (ru) Стена
JPS645137B2 (pt)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961202

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE DK ES FR GB GR IE IT NL PT SE

17Q First examination report despatched

Effective date: 19990909

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010731