EP0016007B1 - Satz von einachsig tragenden, mattenartigen Bewehrungselementen - Google Patents

Satz von einachsig tragenden, mattenartigen Bewehrungselementen Download PDF

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Publication number
EP0016007B1
EP0016007B1 EP79900573A EP79900573A EP0016007B1 EP 0016007 B1 EP0016007 B1 EP 0016007B1 EP 79900573 A EP79900573 A EP 79900573A EP 79900573 A EP79900573 A EP 79900573A EP 0016007 B1 EP0016007 B1 EP 0016007B1
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EP
European Patent Office
Prior art keywords
reinforcement
reinforcing
elements
longitudinal reinforcement
reinforcing element
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Expired
Application number
EP79900573A
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German (de)
English (en)
French (fr)
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EP0016007A1 (de
Inventor
Franz Bucher
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0016007A1 publication Critical patent/EP0016007A1/de
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Classifications

    • 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
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats

Definitions

  • the invention relates to a set of uniaxial load-bearing, mat-like reinforcement elements of the same width for reinforced concrete slabs or the like, with an increasing tensile strength of the longitudinal reinforcement from reinforcement element to reinforcement element of the set.
  • Reinforcement meshes are manufactured in a large number of different types, which differ from each other in the distance between the longitudinal bars, the cross bars, the cross-sectional sizes, etc., but which have standardized lengths and widths. Such mats are usually produced in lengths of 6 m, while other lengths are also obtained by overlapping. Cuts require waste that can no longer be used, custom-made products, which of course are more expensive to order with longer delivery times, and the overlap of two mats requires careful laying and laying control. In practice, the dimensions of the reinforcement are treated as individual construction contracts. After determining the load, the engineer calculates each individual component and draws formwork and bending plans.
  • any required steel cross-sectional area required can be implemented in a wide range without loss, since the steel cross-section based on the meter width changes constantly between two limit values in relation to the different area that an element covers taking its distance from the neighboring element into account.
  • an element also covers areas of different sizes, so that the reinforcement can be adapted to the intended widths of a component significantly better than was previously the case.
  • the bar diameters in adjacent sets are selected such that the longitudinal bars have the same cross-sectional area within each set, but increasing cross-sectional areas from set to set. This ensures that elements with the same reference cross-sectional area but different numbers of rods result in different sets. For a specific related steel cross-sectional area, there are therefore always at least two elements that are different with regard to their rod spacing.
  • Reinforcement meshes of the same length and width are also combined into sets according to DE-AS 1 178192, the cross-sectional area of the longitudinal reinforcement increasing from reinforcement mesh to reinforcement mesh according to certain criteria.
  • This set of reinforcement meshes was also created in order to achieve simple adaptation of the reinforcement to increasing payloads with as few different meshes as possible.
  • AT-PS 314 162 describes a staggered surface reinforcement consisting of two overlapping reinforcement mats, each of which is shorter than the span of the reinforced concrete part to be manufactured.
  • the reinforcement meshes can be of the same or different lengths, have the same or different bar cross-sections, and form standardized parts of a modular system.
  • This area reinforcement is based on the knowledge that the steel cross-section is influenced 80% by the span and 20% by the loads and the plate thickness. This is an effort to cope with different spans and different load cases with as few different standardized mat types, and the overlap leads to a reduced number of different mat types. However, the laying itself is not made easier, but must be carried out and checked with particular care.
  • the object of the invention is now to create a set of mat-like reinforcement elements to create elements of the type mentioned at the outset, by means of which a further reduction in the types of reinforcement elements for everyday buildings, predominantly dedicated to residential purposes, called simplifying everyday construction, can be achieved, which enables simple counting without calculation and ultimately does not require any cuts.
  • the object is now achieved in that the length of the reinforcement elements of the set increases from reinforcement element to reinforcement element, and that the longitudinal reinforcement of each reinforcement element, which is preferably adapted to the moment, is designed for an essentially constant, approximately evenly distributed load per unit area that is common in everyday construction .
  • the length of the reinforcement elements increases from reinforcement element to reinforcement element in each case by approximately twice the minimum support length.
  • the invention is based on the following considerations: In the area of reinforced concrete application, a distinction can be made between the everyday buildings defined above and the so-called civil engineering, which deals with special construction tasks.
  • a set of prefabricated beams, which are used together with packing elements for the manufacture of prefabricated ceilings, can already be found in AT-PS 3 05 567 - a prefabricated beam is assigned to each span range. However, these are all reinforced equally, so that the tensile strength decreases with increasing length. Only the combination with fillers in different widths and heights enables the reinforcement elements to be used in the desired manner even with larger spans. In the case of reinforcements for on-site concreting to be laid on the construction site, this type of simplification is not possible without special laying instructions and laying checks, since a co-determining element corresponding to the filler is missing.
  • each mat-like reinforcement element according to the invention is matched to the clear width and is therefore designed differently for each reinforcement element of the set, the number of types to be produced is considerably reduced compared to conventional reinforcement elements, with the elimination of the calculation of those which are separate and others for the case Combinations of conventional reinforcement elements, the difficult installation and the necessary control result in significant time and cost savings.
  • the counting of the number of pieces for the installation width and the lining up of the reinforcement elements according to the invention is necessary.
  • the mat-like reinforcement elements can have, for example, between 2 and 6 m length differences of 20 cm and between 6 and 8 m length differences of 25 cm for clear widths.
  • the longitudinal reinforcement of a reinforcement element consists of reinforcement bars with the same cross-section. It is now provided according to the invention that the longitudinal reinforcement of the reinforcement elements of the set consists, in a manner known per se, of reinforcement bars with a cross section increasing from reinforcement element to reinforcement element.
  • An embodiment of the set according to the invention which reduces the transport weight and the steel requirement provides that the longitudinal reinforcement of a reinforcement element consists of reinforcement bars with the same steel quality and the longitudinal reinforcement of the reinforcement elements of the set consists of reinforcement bars with steel quality increasing from reinforcement element to reinforcement element, so that the cross section of the bars in all reinforcement elements can remain the same.
  • the reinforcement elements of the set can have a width for plate-shaped components, which one by the distance between two Ribs of a reinforced concrete rib ceiling corresponds to a certain unit of width (between 50 and 90 cm).
  • the table below shows reinforcement elements according to the invention from the set for clear widths between 2.00 m and 6.00 m.
  • the load on a reinforced concrete component made with reinforcement elements according to the invention can even be varied, although the design was carried out exclusively according to the tensile force resulting from a constant load capacity.
  • the load can be increased without reinforcement of the longitudinal reinforcement by increasing the ceiling thickness, whereby for the usual ceiling thicknesses in the table an increase of 2 cm means an increase of the load by 500 N / m 2 .
  • the limited usability in the table for slab thicknesses of 14, 16 and 18 cm does not depend on the reinforcement elements according to the invention but only on the slab thickness itself.
  • the tension wide, dependent tensile force can be used for successive areas of clear widths, these reinforcement elements of uniform width exceeding the support lengths, the number of which can be counted down to the laying width and can be laid by unskilled forces without further calculation and special laying regulations.
  • the number of reinforcement elements in the set corresponds to the clear width areas that occur in everyday construction, so that storage is limited to the lengths mentioned, cuts and losses of reinforcement steel as well as the production of special sizes and the complex overlapping of reinforcement elements are avoided.
  • the reinforcement element of this embodiment is composed of a flat mat part and a mat part which is integrated into this and has a beam-like shape, transverse reinforcement bars 3 being bent in a bow-like manner in the beam-like mat part.
  • the longitudinal reinforcement 8 is preferably adapted to the course of the moment.
  • each reinforcement element 1 is assigned to a span 6 and protrudes about this by twice the minimum support length 4.
  • This longitudinal reinforcement 8 of each reinforcement element of the series is designed for approximately the same uniformly distributed load, the length 7 of the reinforcement elements 1 in each case about twice the minimum support length 4 increases.
  • the reinforcement elements 1 for spans 6 between 2 and 6 m are graduated by 20 cm, between 6 and 8 m by 25 cm.
  • the gradations by twice the minimum support length 4 can be clearly seen from FIG. 2, in which all reinforcement elements 1 are shown lying on one side, aligned on a support.
  • the increasing tensile strength of the longitudinal reinforcement 8 within the set can be achieved, for example, by longitudinal reinforcement bars 2, the cross-section of which increases from reinforcement element to reinforcement element and / or whose steel quality increases.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP79900573A 1978-06-19 1980-01-29 Satz von einachsig tragenden, mattenartigen Bewehrungselementen Expired EP0016007B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT442978A AT355273B (de) 1978-06-19 1978-06-19 Reihe von einachsig tragenden bewehrungsge- bilden
AT4429/78 1978-06-19

Publications (2)

Publication Number Publication Date
EP0016007A1 EP0016007A1 (de) 1980-10-01
EP0016007B1 true EP0016007B1 (de) 1982-06-02

Family

ID=3563909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79900573A Expired EP0016007B1 (de) 1978-06-19 1980-01-29 Satz von einachsig tragenden, mattenartigen Bewehrungselementen

Country Status (12)

Country Link
EP (1) EP0016007B1 (ja)
JP (1) JPS55500712A (ja)
AT (1) AT355273B (ja)
BE (1) BE877036A (ja)
CH (1) CH647291A5 (ja)
DD (1) DD144431A5 (ja)
DE (2) DE2962993D1 (ja)
HU (1) HU180433B (ja)
IT (1) IT1121431B (ja)
MX (1) MX148393A (ja)
NL (1) NL7904716A (ja)
WO (1) WO1980000089A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003113A1 (en) * 1982-03-02 1983-09-15 Franz Bucher Reinforcement elements

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1178192B (de) * 1955-07-30 1964-09-17 Willi Neumann Dr Bewehrungsmattenreihe mit zunehmendem Nutzquerschnitt
AT305567B (de) * 1965-09-24 1973-03-12 Karl Leitl Dipl Ing Satz von vorgefertigten Trägern für die Herstellung von Fertigteildecken

Also Published As

Publication number Publication date
JPS55500712A (ja) 1980-10-02
CH647291A5 (de) 1985-01-15
WO1980000089A1 (en) 1980-01-24
DE2962993D1 (en) 1982-07-22
MX148393A (es) 1983-04-18
IT1121431B (it) 1986-04-02
AT355273B (de) 1980-02-25
BE877036A (nl) 1979-10-15
DE7936810U1 (de) 1980-07-03
HU180433B (en) 1983-03-28
IT7923632A0 (it) 1979-06-15
DD144431A5 (de) 1980-10-15
EP0016007A1 (de) 1980-10-01
ATA442978A (de) 1979-07-15
NL7904716A (nl) 1979-12-21

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