EP1469135B1 - Spiralförmiger Bewehrungsbügel und Betonsbewehrungsmethode dazu - Google Patents

Spiralförmiger Bewehrungsbügel und Betonsbewehrungsmethode dazu Download PDF

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Publication number
EP1469135B1
EP1469135B1 EP04425256A EP04425256A EP1469135B1 EP 1469135 B1 EP1469135 B1 EP 1469135B1 EP 04425256 A EP04425256 A EP 04425256A EP 04425256 A EP04425256 A EP 04425256A EP 1469135 B1 EP1469135 B1 EP 1469135B1
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EP
European Patent Office
Prior art keywords
stirrup
reinforcement
structures
tracts
oblique
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EP04425256A
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English (en)
French (fr)
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EP1469135A1 (de
Inventor
Anton Massimo Galluccio
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Priority to PL04425256T priority Critical patent/PL1469135T3/pl
Publication of EP1469135A1 publication Critical patent/EP1469135A1/de
Priority to US11/175,321 priority patent/US20050257482A1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
    • B21F27/122—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires
    • 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
    • E04C5/0618—Closed cages with spiral- or coil-shaped stirrup rod

Definitions

  • the invention relates to the broken-spiral stirrup and to the method with which the reinforcement of concrete structures is implemented and, in particular, the reinforcement of columns and beams.
  • the reinforcement of concrete columns and beams is implemented by a plurality of longitudinal members - arranged on the sides of a rectangle and among which the ones at the corner are called stirrup supports - and by a plurality of stirrups, implementing the cross reinforcement, each one constituted by a steel bar bent according to a closed line, with the ends bent like a hook at the same angle of the implemented rectangular figure.
  • stirrups are distributed along the length of the longitudinal members and they are fastened thereto with bindings, implemented with steel annealed wire, so that during the concrete casting they do not translate onto the longitudinal members themselves.
  • stirrups are usually distributed at a distance variable from 6 to 30 cm and on one hand they have the function of keeping in position the longitudinal members and of preventing the deformations and yieldings thereof if stressed, on the other hand they contribute to the resistance to the shear cross stresses.
  • 5-meter-long beam or column may require, for example, from 30 to 40 stirrups, therefore more than 120 bindings.
  • stirrups require the use of a bending-shearing machine, usually they are implemented in the workshop and then transported in bundles to the site wherein the building with concrete columns and beams to be reinforced is under construction.
  • stirrups tend to tangle, therefore, in order to reduce such drawback, they are bound in packs, then they are transported to the site and, at last, they are loosened and unravelled to be combined with the longitudinal reinforcement members, arranged onto appropriate stands and marked with chalk in order to show the places wherein said stirrups are to be positioned and joined to the members themselves.
  • the so-obtained reinforcement spiral is cut off to required lengths, then it is lengthened, with great efforts, until reaching the required pitch between one winding and the other.
  • a spiral reinforcement structure which is constituted by a wire, or metal bar, bent to form a number of consecutive windings with a distance "D" one from the other, each one with three sides substantially perpendicular to the longitudinal direction of the structure and lying on the same plane.
  • the fourth side originating the pitch, is arranged in oblique direction and it constitutes a limited tract of the spiral. It is always placed on the same side of the spiral reinforcement structure (as exemplified in figure 3 ).
  • Such structure is provided to be combined directly in the workshop with the irons or reinforcement longitudinal members thereto it is fastened with welding spots so as to obtain a finished structure, ready to be transported to the site wherein it will be inserted in the form.
  • the objects of the present invention are to implement a structure and to find a method for the stirrup of the reinforcements for concrete columns and beams, so as to make easier on one hand the stirrup formation in the workshop, the storage and transportation thereof from the workshop to the site, on the other hand the quick and precise combination of the stirrup and the irons or the reinforcement longitudinal members in the site itself.
  • Still an additional object is to implement a stirrup structure which simplifies in the site the binding procedures therewith it is joined to the irons or to the reinforcement longitudinal members, that is which allows to reduce considerably the number of bindings of said reinforcement longitudinal members and, at the same time, which guarantees the stability of the stirrup position on said reinforcement longitudinal members, according to what is stated in the design.
  • an additional object is to implement a stirrup structure which in the site could be inserted in the form in the state with which it comes from the workshop, which could be then brought to the working configuration and which in such state could be stabilized to said reinforcement longitudinal members, without changes or however intermediate interventions.
  • stirrup structure playing the stirrup function, hereinafter called stirrup structure, and by a method with which one or more of said structures are joined to the reinforcement longitudinal members, according to the enclosed claims.
  • the stirrup structure extending according to its longitudinal axis, consists of a structure made of an iron bar for reinforced concrete or other materials or sections for bar and/or roll, hereinafter for sake of brevity called metallic bar, constituted by a sequence of tracts substantially perpendicular and substantially oblique with respect to said longitudinal axis and forming spiral configurations with polygonal projection onto a plane substantially perpendicular to said longitudinal axis, with said oblique tracts tilted two by two in directions different between them to implement the spiral pitch and positioned at faced surfaces.
  • said stirrup structure in a preferred embodiment solution wherein said stirrup structure has rectangular or squared projection onto a plane substantially perpendicular to said longitudinal axis A, said stirrup structure is constituted by a continuous sequence of tracts alternatively directed in the directions substantially perpendicular and substantially oblique with respect to said longitudinal axis A, originating the broken-spiral configuration.
  • said stirrup structure ends at least at one end with a plane rectangular winding, the whole preferably to be implemented in the workshop.
  • the method consists in positioning also in the site on a resting base, or in the form, one or more stirrup structures aligned between them, positioning inside thereof the reinforcement longitudinal members, marking at least one of them so as to point out the beginning and ending points of each stirrup structure, then joining the beginning and ending windings of each stirrup structure to said reinforcement longitudinal members, in the marked points, by binding, welding or other equivalent method.
  • the method usually provides the compaction of the stirrup structure to the minimum volume, its stabilization with binding-anchoring means, the handling and positioning on the resting base or in the form of the stirrup structure(s) in a state compacted to the minimum volume, then their releasing from the anchoring means to allow them to stretch elastically and, also by virtue of the shape memory, to assume the state with which they will be joined to the reinforcement longitudinal members.
  • the invention consists of a stirrup structure 1 with extension according its longitudinal axis A, implemented with a metallic bar and constituted by a sequence of tracts substantially perpendicular 3 and substantially oblique 2 with respect to said longitudinal axis A and forming winding configurations with polygonal projection onto a plane substantially perpendicular to said longitudinal axis A, with said oblique tracts 2 tilted two by two in directions different between them to implement the spiral pitch, as well as positioned at faced surfaces.
  • Said oblique tracts 2 have a tilting angle and a length so as to make the distance between the projections on the axis of the stirrup structure 1 the same at the beginning and at the end of each oblique tract 2, equal substantially to half the stirrup pitch, as exemplified in figure 6 .
  • the subject stirrup structure 1 usually ends, at least one of its ends, with a plane polygonal winding 4 almost orthogonal to the longitudinal axis A according thereto it develops.
  • Said plane windings 4 only aim at making easier the positioning and anchoring of the stirrup structure 1 on the reinforcement longitudinal members 6, as it will be explained later.
  • the structure portion comprised within said plane windings 4 is a continuous alternance of tracts 3, substantially perpendicular to the axis A according thereto the same structure develops, and oblique tracts 2, which allow the stirrup structure to develop lengthwise.
  • the tracts 3, directed in the direction almost perpendicular to the direction of the axis A of the structure 1 itself, are the ones which support the shear stresses, whereas the oblique tracts 2 have a tilting angle and a length so as to make the distance between the projections onto the axis of the stirrup structure 1 of the beginning and of the end of each oblique tract 2 equal to half the stirrup pitch.
  • the number of oblique tracts 2 is apt to provide a whole length so as to cover the tract of reinforcement structure 8 to be implemented, with a pre-established length.
  • the pitch D is constant.
  • stirrup pitch D instead, is not constant, with oblique tracts 2 with different lengths, so as to approach the arrangement of the substantially perpendicular tracts 3 to the longitudinal axis A, equal to the one provided in the theoretical calculation of the concrete structure reinforcement to be implemented.
  • the subject broken-spiral stirrup structure 1 comprises a plurality of plane polygonal windings 4 substantially orthogonal to said longitudinal axis A, alternated by portions of broken-spiral stirrup structures which usually will be the only parts fastened with ties to the reinforcement longitudinal members 6.
  • the subject stirrup structure 1 is usually implemented in the workshop and it is produced in order to be utilized in the site, wherein it will be combined with said reinforcement longitudinal members 6.
  • said stirrup structure 1, from the production until the utilization, is kept in the compacted state, therefore it comprises anchoring means 7 apt to keep it in such state.
  • stirrup structure 1 with an axial length of 5 metres, implemented with an iron bar with a diameter of 10 mm and wherein the stirrup pitch D is equal to 20 cm, in the compacted state occupies a length of about 30-35 cm, with a reduction of the occupied volume of about 15 times.
  • stirrup structure 1 requires a method for its implementation and a method for its assembling with the reinforcement longitudinal members 6.
  • the method for its implementation comprises the bending of a metallic bar so as to obtain a stirrup structure 1 with extension according to said longitudinal axis A which comprises a sequence of tracts substantially perpendicular 3 and tracts substantially oblique 2 with respect to said longitudinal axis A, forming winding configurations, with polygonal projection onto a plane substantially perpendicular to said longitudinal axis A.
  • Said bending comprises plastic deformations of the tracts constituting said winding configurations so that said oblique tracts arrange tilted in directions different between them and on faced surfaces.
  • the method then comprises the compaction of the stirrup structure 1 until the state wherein said winding configurations are mutually adjacent, that is in mutually in contact or however very near positions.
  • the method for assembling the stirrup structure 1 to the reinforcement longitudinal members 6, with the purpose of implementing the reinforcement structure 8, usually provides the use of a plurality of stirrup structures 1, so that, independently from the length of the reinforced concrete structure to be implemented, each one results easy to handle, with a weight not higher than 20-30 kg.
  • Such structures 1 in the compacted state are arranged aligned between them above an assembly plane or, in particular directly inside a form, since as pointed out in the figures 7, 8 and 9 , the change in length of the stirrup structure 1 during the passage from the extended state to the compacted state is limited, not higher than the thickness of the concrete layer outer of the reinforcement longitudinal members 6 in the concrete structure to be implemented.
  • the step of loosening the stirrup structure 1 from the anchoring means 7 can be performed outside or directly inside the receiving structure and in the particular in the form.
  • the subject invention thus, provides that the reinforcement structures 8 be implemented in the site, the stirrup structures 1 be implemented in the workshop and be handled in the compacted state and, in the site, said stirrup structures 1 in the compacted state be positioned onto the assembly plane or in the form, that the anchoring means 7 be removed and each of said stirrup structures 1 be thus released in axial direction in order to assume the extended state, with the pitch equal to the one provided in the design. Once reached the extended state, said stirrup structures are stabilized in such state to the reinforcement longitudinal members 6.
  • stirrup structures 1 Dependently upon the reinforcement structure 8 to be implemented, thus depending upon the role played by the stirrup structure 1 within the whole reinforcement structure 8, the stirrup structures 1, if more than one, are consecutive between them and they are anchored to the reinforcement longitudinal members 6 immediately one after the other, or the ones consecutive between them are anchored to the reinforcement longitudinal members 6 at distances between them substantially equal to the stirrup pitch. Said stirrup structures 1, arranged consecutive between them, can have the same stirrup pitch D or even different stirrup pitches. In case in the production of reinforced concrete structures three or more stirrup structures 1 are used, the central one or ones are usually provided with a stirrup pitch higher than the one of the side stirrup structures 1, thus implementing what provided in the common designs of reinforced concrete structures.
  • the subject invention is particularly advantageous since it is constituted by a metal bar, whereon the substantially perpendicular tracts 3 and the oblique tracts 2 are alternatively produced, upon the tilting and length thereof the distance between the adjacent perpendicular tracts 3, and thus the stirrup pitch D which can be finely adjusted, depends.
  • stirrup structure 1 in order to be positioned, requests minimum means keeping it in the coupling state.
  • stirrup structure 1 is positioned on the assembly plane or in the form in the compacted state, then it is released from the anchoring means 7 to be brought to the state wherein it is joined to the reinforcement longitudinal members 6 thereto it is sufficient be fastened only towards its ends, since the broken spiral, once established its beginning and its end, cannot avoid arranging according to its pitch established during the bending step of its oblique sides, thus considerably reducing the number of bindings, apart from guaranteeing the mutual correct position of the substantially perpendicular tracts 3 of said stirrup structure 1 destined to react to the shear stresses which arise in the structure under construction.
  • stirrup structure 1 could even undergo changes and regulations, without altering its constructive and functional logic, as defined by the following claims.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Claims (21)

  1. Bewehrungsbügel in Form einer gebrochenen Spirale für die Bewehrung von Betonbauteilen, mit einer Bewehrungsbügelstruktur (1) mit Erstreckung entsprechend ihrer Längsachse (A), ausgeführt durch einen metallischen Stab, gebildet durch eine Folge von Abschnitten, die im wesentlichen senkrecht (3) und im wesentlichen schräg (2) bezüglich der Längsachse (A) verlaufen und Windungskonfigurationen mit polygonaler Projektion auf eine Ebene im wesentlichen senkrecht zur Längsachse (A) bilden, dadurch gekennzeichnet, daß die schrägen Abschnitte (2) jeweils zu zweien in unterschiedlichen Richtungen zwischen einander schräg gestellt sind, um die Spiralsteigung zu bilden, und daß sie an einander zugekehrten Flächen positioniert sind.
  2. Bewehrungsbügel nach Anspruch 1, dadurch gekennzeichnet, daß die schrägen Abschnitte (2) einen solchen Neigungswinkel und eine solche Länge haben, daß der Abstand zwischen den Projektionen auf die Achse der Bewehrungsbügelstruktur (1) selbst am Beginn und am Ende jedes schrägen Abschnittes (2) im wesentlichen der halben Bewehrungsbügelsteigung entspricht.
  3. Bewehrungsbügel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bewehrungsbügelstruktur (1) wie eine gebrochene Spirale geformt ist, die zumindest an einem Ende eine ebene polygonale Windung (4) aufweist, die im wesentlichen orthogonal zur Längsachse (A) ist, der entsprechend sich die Bewehrungsbügelstruktur (1) selbst entwickelt.
  4. Bewehrungsbügel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie eine Anzahl von schrägen Abschnitten (2) aufweist, die befähigt sind, eine ganze Länge zu bilden, um einen Abschnitt der Bewehrungsbügelstruktur (8) abzudecken, der mit einer vorbestimmten Länge auszuführen ist.
  5. Bewehrungsbügel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie keine konstante Steigung und schräge Abschnitte (2) unterschiedlicher Längen aufweist.
  6. Bewehrungsbügel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie eine Vielzahl von ebenen polygonalen Windungen (4) aufweist, die im wesentlichen orthogonal zur Längsachse (A) sind und mit Abschnitten der gebrochenen Spiralbewehrungsbügelstruktur abwechseln.
  7. Bewehrungsbügel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie Verschlußmittel (7) aufweist, um die Bewehrungsbügelstruktur in einem kompaktierten Zustand zu halten.
  8. Verfahren zum Ausführen einer gebrochenen Spiralbügelbewehrung gemäß einem der vorhergehenden Ansprüche, umfassend das Biegen eines metallischen Stabes, um eine Bewehrungsbügelstruktur (1) mit Erstreckung entsprechend ihrer Längsachse (A) zu erhalten, die eine Folge von Abschnitten (3) im wesentlichen senkrecht und von Abschnitten (2) im wesentlichen schräg bezüglich der Längsachse (A) aufweist, welche windungskonfigurationen mit polygonaler Projektion auf eine Ebene im wesentlichen senkrecht zur Längsachse (A) bilden, dadurch gekennzeichnet, daß das Biegen plastische Deformationen der Abschnitte umfaßt, welche Windungskonfigurationen bilden, so daß die schrägen Abschnitte sich jeweils zu zweit in unterschiedlichen Richtungen zwischen einander und auf einander zugekehrten Flächen schräg stellen.
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß sie das Kompaktieren der Bewehrungsbügelstruktur (1) umfaßt, bis der Zustand erreicht ist, in welchem die Windungskonfigurationen zu einander benachbart sind.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß es das Verschließen der Bewehrungsbügelstruktur (1) in der kompaktierten Konfiguration umfaßt, die mit den Verschlußmitteln (7) ausgeführt wird.
  11. Verfahren zum Zusammenbau einer Bewehrungsbügelstruktur (8), dadurch gekennzeichnet, daß es die Schritte des Einführens von Bewehrungslängselementen (6) in eine oder mehrere Bewehrungsbügelstrukturen (1) gemäß einem oder mehreren der Ansprüche 1-7 im kompaktierten Zustand und die Schritte des Lösens der kompaktierten Struktur(en) (1) mit nachfolgender Wiedererlangung der gestreckten Konfiguration derselben infolge des elastischen Effektes und des Gestaltgedächtnisses umfaßt.
  12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß der Schritt des Lösens der Bewehrungsbügelstruktur (1) von den Verschlußmitteln (7) außerhalb oder direkt innerhalb der aufnehmenden Struktur, insbesondere in der Form erfolgt.
  13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, daß die Bewehrungsbügelstrukturen (8) an der Baustelle ausgeführt werden, wobei die Bewehrungsbügelstrukturen (1) in der Werkstatt ausgebildet und im kompaktierten Zustand gehandhabt werden, und wobei an der Baustelle die Bewehrungsbügelstrukturen (1) im kompaktierten Zustand auf der Zusammenbauebene oder in der Form positioniert werden, die Verschlußmittel (7) entfernt werden, und jede Bewehrungsbügelstruktur (1) in axialer Richtung freigegeben wird, um den gestreckten Zustand anzunehmen, wobei die Steigung (D) gleich der im Entwurf vorgesehenen entspricht, sodann die Bewehrungsbügelstrukturen (1) in diesem Zustand an den Bewehrungslängselementen (6) stabilisiert werden.
  14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß es die Anordnung einer Vielzahl von Bewehrungsbügelstrukturen (1) zwischen einander ausgerichtet umfaßt, das Markieren der Endpunkte jeder Bewehrungsbügelstruktur (1) auf zumindest einem der Bewehrungslängselemente (6), das Positionieren der Bewehrungslängselemente (6) innerhalb der Bewehrungsbügelstruktur (1) sowie zumindest einen Schritt des Bindens der Längselemente (6) an den Anfang und das Ende jeder Bewehrungsbügelstruktur (1), wobei die Bindungen an den Markierungen ausgeführt werden, die an zumindest einem der Bewehrungslängselemente (6) ersichtlich sind.
  15. Verfahren nach Anspruch 13 und 14, dadurch gekennzeichnet, daß die Bewehrungslängselemente (6) und die Bewehrungsbügelstruktur (1) durch Verbinder (5) nur an den Enden der Bewehrungsbügelstrukturen (1) selbst verbunden werden.
  16. Verfahren nach Anspruch 13, 14 und 15, dadurch gekennzeichnet, daß die Bewehrungsbügelstrukturen (1) aufeinanderfolgend zwischen einander an den Bewehrungslängselementen (6) unmittelbar hintereinander verankert werden.
  17. Verfahren nach Anspruch 13, 14 und 15, dadurch gekennzeichnet, daß die Bewehrungsbügelstrukturen (1) aufeinanderfolgend zwischen einander an den Bewehrungslängselementen (6) in einem Abstand zwischen einander im wesentlichen gleich der Bewehrungsbügelsteigung (D) verankert werden.
  18. Verfahren nach Anspruch 13 bis 17, dadurch gekennzeichnet, daß die Bewehrungsbügelstrukturen (1) aufeinanderfolgend zwischen einander die gleiche Bewehrungsbügelsteigung (D) haben.
  19. Verfahren nach einem der Ansprüche 13 bis 17, dadurch gekennzeichnet, daß die Bewehrungsbügelstruktur (8) mit Bewehrungsbügelstrukturen (1) ausgeführt wird, die unterschiedliche Bewehrungsbügelsteigungen haben.
  20. Verfahren nach einem der Ansprüche 13 bis 17, dadurch gekennzeichnet, daß in der Produktion der Bewehrungsbügelstrukturen (8) drei oder mehr Bewehrungsbügelstrukturen (1) verwendet werden, mit der zentralen oder jenen mit einer Bewehrungsbügelsteigung größer als die Seitenbewehrungsbügelstrukturen (1).
  21. Bauelement, hergestellt mit der Bewehrungsbügelstruktur (1) nach den Ansprüchen 1 bis 7, erhalten mit einer Bewehrungsbügelstruktur (8) gemäß den Ansprüchen 8 bis 20.
EP04425256A 2003-04-14 2004-04-07 Spiralförmiger Bewehrungsbügel und Betonsbewehrungsmethode dazu Expired - Lifetime EP1469135B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL04425256T PL1469135T3 (pl) 2003-04-14 2004-04-07 Strzemię w kształcie łamanej spirali i sposób wykonania zbrojenia konstrukcji betonowych
US11/175,321 US20050257482A1 (en) 2003-04-14 2005-07-07 Broken-spiral stirrup and method for implementing the reinforcement of concrete structures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2003AR000018A ITAR20030018A1 (it) 2003-04-14 2003-04-14 Staffatura ad elica spezzata e metodo per la realizzazione della armatura di strutture in calcestruzzo
ITAR20030018 2003-04-14

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EP1469135A1 EP1469135A1 (de) 2004-10-20
EP1469135B1 true EP1469135B1 (de) 2010-06-02

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EP (1) EP1469135B1 (de)
AT (1) ATE470029T1 (de)
DE (1) DE602004027438D1 (de)
DK (1) DK1469135T3 (de)
ES (1) ES2347048T3 (de)
IT (1) ITAR20030018A1 (de)
PL (1) PL1469135T3 (de)

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TWI711749B (zh) * 2019-08-05 2020-12-01 戴雲發 建築物鋼筋立體結構及其製作方法

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JP2016108846A (ja) * 2014-12-08 2016-06-20 鹿島建設株式会社 配筋作業支援システム、配筋作業支援方法及び配筋作業支援プログラム
US11661718B2 (en) * 2018-07-25 2023-05-30 Terracon Consultants, Inc. Concrete pier foundation with lateral shear reinforcing loops and methods of constructing the same
CN114932180B (zh) * 2022-03-29 2023-05-23 中国五冶集团有限公司 一种定位灌注桩钢筋笼螺旋箍筋间距的辅助工具

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CH602215A5 (de) * 1976-02-26 1978-07-31 Saw Spannbetonwerk Ag Zweignie
GB1564816A (en) * 1976-12-07 1980-04-16 Neturen Co Ltd Reinforced concrete
FI69179C (fi) 1984-01-24 1985-12-10 Rakennusvalmiste Oy Foerfarande foer tillverkning av spiralarmeringar och av dessabestaoende kombinerad spiralmeringsanordning
GR1002860B (el) * 1997-01-03 1998-02-12 Αντισεισμικοι σπειροειδεις συνδετηρες δομικων εργων

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2530074C1 (ru) * 2013-03-27 2014-10-10 Открытое акционерное общество "Научно-исследовательский центр "Строительство", ОАО "НИЦ "Строительство" Арматурный каркас и способ его изготовления
TWI711749B (zh) * 2019-08-05 2020-12-01 戴雲發 建築物鋼筋立體結構及其製作方法

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EP1469135A1 (de) 2004-10-20
ATE470029T1 (de) 2010-06-15
ITAR20030018A1 (it) 2003-07-14
DK1469135T3 (da) 2010-10-04
DE602004027438D1 (de) 2010-07-15
ES2347048T3 (es) 2010-10-25
PL1469135T3 (pl) 2010-10-29

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