EP0333827A1 - Verfahren zur herstellung von trägern mit durchbrochenem einfachen oder mehrfachen steg, sowie träger mit durchbrochenem steg - Google Patents
Verfahren zur herstellung von trägern mit durchbrochenem einfachen oder mehrfachen steg, sowie träger mit durchbrochenem stegInfo
- Publication number
- EP0333827A1 EP0333827A1 EP88908742A EP88908742A EP0333827A1 EP 0333827 A1 EP0333827 A1 EP 0333827A1 EP 88908742 A EP88908742 A EP 88908742A EP 88908742 A EP88908742 A EP 88908742A EP 0333827 A1 EP0333827 A1 EP 0333827A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- carrier
- sections
- halves
- load
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
- E04C3/083—Honeycomb girders; Girders with apertured solid web
- E04C3/086—Honeycomb girders; Girders with apertured solid web of the castellated type
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/38—Arched girders or portal frames
- E04C3/40—Arched girders or portal frames of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
- E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
- E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
Definitions
- the invention relates to a method for producing carriers with an open single or multiple web from a starting material with a full web, and to a thus produced carrier with an open web.
- the beams were initially made from a solid material with a parallel belt, corresponding to the maximum load.
- the girders were dimensioned for the place exposed to the greatest load, they were oversized along most of the girder and therefore extremely heavy and material-intensive.
- the aim of the invention was to eliminate the above-mentioned shortcomings and to develop a method for the production of beams with a broken web, with the aid of which, starting from a material with a full web, a beam without waste can be produced, which can be broken through has a division corresponding to the load and a suitable size.
- the invention relates to a method for the production of beams with a single or multiple perforated web made from a full web as a starting material.
- the essence of the invention is by the carrier along its length - keeping an eye on the expected static load - into sections, or if only a characteristic static load is to be expected, the entire girder is regarded as a single section, after which the web cut the line (s) in two halves, with respect to the point in the center line perpendicular to the line length, in a rotationally symmetrical manner, along a line composed of straight lines or arcs with a variable period, which results in openings with a dimension corresponding to the load after which the one half thus obtained is rotated by 180 ° about the center line, the carrier half openings are fastened to form one another and, if there are several sections, the sections provided with openings produced in this way are fastened to one another.
- Period of the breakthroughs, size of the holes and shape of the holes, and of course resulting therefrom, the cutting line are determined taking into account the arrangement of the beam and the local loads.
- the procedure is expediently carried out by doing both sections of the pairs in the same way, along a line composed of straight lines and / or arcs with a variable period - the through ⁇ result in breaks with a dimension corresponding to the load - cut in two, and the resulting sections 1 ⁇ 2 halves ⁇ resulting in closed openings and attached to each other.
- load-bearing support structures can be designed in wide scales. In this way we can produce beams with constant and variable heights, curved, straight beams and those with a broken format.
- FIG. 1 shows the side view of the starting material used for the carrier to be produced, with the cutting line
- FIG. 2 shows the side view of the carrier made from the starting material according to FIG. 1 or from the web
- FIG. 3 shows the side view of the carrier made from the starting material according to FIG. 1 with an enlarged web
- FIGS. 4 to 6 show the same way as the embodiments according to FIG 1 to 3
- 7 to 12 show the side views of the girder sections manufactured taking into account various static loads
- FIG. 13 shows the basic structure of an evenly loaded girder supported on one end and articulated at the other end and supported on two supports
- FIG. 14 shows the image of the support according to FIG. 13
- FIG. 15 shows the side view of the web of the support
- FIG. 16 made the side view using the inventive method, clamped at one end and articulated at the other end designed, two-pillar carrier.
- H constant, variable height of the girder with cavity k the center line perpendicular to the longitudinal axis of the girder section o fulcrum (origo) x longitudinal axis of the beam section s axis of symmetry.
- FIG. 1 shows a girder section with a straight axis and full web, the girder of which is cut in two along a line 3, which is composed of straight lines and is rotationally symmetrical compared to the center of rotation of the girder section, and with variable period, and in the sense of our exemplary embodiment, the upper part the center line k is rotated.
- the halves 2 are fastened or welded to one another.
- a carrier with the web of height H or with an enlarged web comes about from the carrier with full web of height h.
- insert elements 5 are fastened or welded between the web halves 2.
- the web of the carrier is already fastened in the initial state, i.e. it is designed monolithically with the carrying straps ⁇ 1.
- a carrier is now manufactured from an arcuate starting material, the procedure is as shown in FIG. 4; here, too, the web of the girder is cut in a rotationally symmetrical manner with respect to the point of rotation o which is on the center line k of the line, depending on the load to be expected. After the cutting has taken place, the upper half of the beam is rotated by 180 ° around the center line k, after which the beam halves are fastened or welded to one another. (Fig. 5) Of course, the web height can also be increased in the case of an arc-shaped support by inserting the insert elements 5, or weld elements. (Fig. 6)
- FIG. 7 shows a version of the carriers produced by the method according to the invention, in which the change (alternative arrangement) of the hollow and full parts on the carrier section has a gradual and changing character on a small scale.
- the alternative arrangement of the hollow and the full parts has a gradual and changing character on a small scale.
- the alternative arrangement of the hollow and the full parts takes place in several large stages.
- hollow and full parts are arranged in leaps and bounds, changing in one step.
- the change of the full and the hollow parts has a gradual, small-scale character, and a longer full part is present in the middle of the field.
- Such a design can be advantageous in the case of articulated supports mounted on two supports, which are loaded in the center of the field with a single concentrated force.
- this carrier section In the carrier section according to FIG. 12, hollow and full parts are gradually changed, longer full parts are arranged in the middle of the field and in the vicinity of the supports.
- this carrier section consists of two parts, here are two, in two center lines k points o available. Such a design is advantageously used for supports clamped on both ends and supported on two supports if the center of the field is loaded with a single concentrated load.
- FIG. 13 shows a carrier which is clamped at one end and is articulated at the other end and is evenly loaded.
- FIG. 14 illustrates the moment image of the beam, taking into account that the beam - taking into account the characteristic static load - is divided into sections.
- the carrier is divided into sections a, b and c. Subdivision into sections is not described in detail here since it does not affect the essence of the invention. Accordingly, the web of the carrier with the center of rotation o on the center lines k 9 and k.0 is rotationally symmetrical, along the line according to FIG. 15 cut in two. In this exemplary embodiment, only the upper half of the web is cut according to the routes which - after they have passed the
- the web of the two sections is branched in the same way, but of course according to the load, along a line with openings of variable dimensions and with a variable period. cut, after which the route halves thus obtained are paired so that the closed breakthroughs come about.
- the carriers can be produced without waste, and in such a way that the distances in both directions are the same length in relation to the center line.
- the method according to the invention can be implemented quite advantageously through the use of optically controlled cutting torches with several cutting heads, plasma cutters, etc.
- the hollow girders can be produced much more economically than the previously used hollow girders with the same period without any particular additional work.
- material savings of around 10 to 33% can be achieved.
- the method according to the invention can of course not only be used for single-walled beams, but also for multi-walled beams, including U-beams, equally with arbitrarily complex beams with a closed profile, even with a tubular or elliptical cross-section, in In this case, the side parts of the tube or another curved cross section are to be regarded as a web.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Prostheses (AREA)
- Metal Rolling (AREA)
- Manufacture Of Iron (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88908742T ATE71168T1 (de) | 1987-10-12 | 1988-10-06 | Verfahren zur herstellung von traegern mit durchbrochenem einfachen oder mehrfachen steg, sowie traeger mit durchbrochenem steg. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU458487 | 1987-10-12 | ||
HU874584A HU206400B (en) | 1987-10-12 | 1987-10-12 | Method for producing holed beams of single or multiple webs and beam of holed web |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0333827A1 true EP0333827A1 (de) | 1989-09-27 |
EP0333827B1 EP0333827B1 (de) | 1992-01-02 |
Family
ID=10968374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88908742A Expired - Lifetime EP0333827B1 (de) | 1987-10-12 | 1988-10-06 | Verfahren zur herstellung von trägern mit durchbrochenem einfachen oder mehrfachen steg, sowie träger mit durchbrochenem steg |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0333827B1 (de) |
AT (1) | ATE71168T1 (de) |
AU (1) | AU2533588A (de) |
DE (1) | DE3867462D1 (de) |
HU (1) | HU206400B (de) |
WO (1) | WO1989003464A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0002989D0 (en) * | 2000-02-10 | 2000-03-29 | Atlas Ward Structures Limited | Cellular beam |
CN105544860A (zh) * | 2015-12-22 | 2016-05-04 | 中国一冶集团有限公司 | 正六边形蜂窝梁制作方法 |
PL237607B1 (pl) * | 2018-01-03 | 2021-05-04 | Labocha Slawomir | Profil zamknięty ażurowy na słupy trakcyjne |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1709326A1 (de) * | 1959-05-13 | 1972-11-09 | Franz Litzka | Wabentraeger |
DE1484305A1 (de) * | 1959-05-13 | 1969-01-23 | Franz Litzka | Wabentraeger mit zusaetzlichen Versteifungsmitteln |
DE2119731A1 (de) * | 1970-05-06 | 1971-12-09 | MEM Mezögazdasagi Tervezö Vallalat (AGROTERV), Budapest; Mezögep, Mezögazdasagi Gepgyarto es Szolgaltato Vallalat, Szolnok; (Ungarn) | Träger mit durchgebrochenem Steg, sowie Verfahren zur Herstellung desselben |
FR2132531A1 (en) * | 1971-04-07 | 1972-11-24 | Connac Gabriel | Lattice web beams - forming by punching and shearing the web of a solid beam, to give a new beam of increased height |
-
1987
- 1987-10-12 HU HU874584A patent/HU206400B/hu active IP Right Revival
-
1988
- 1988-10-06 EP EP88908742A patent/EP0333827B1/de not_active Expired - Lifetime
- 1988-10-06 DE DE8888908742T patent/DE3867462D1/de not_active Expired - Lifetime
- 1988-10-06 AU AU25335/88A patent/AU2533588A/en not_active Abandoned
- 1988-10-06 WO PCT/HU1988/000065 patent/WO1989003464A1/de active IP Right Grant
- 1988-10-06 AT AT88908742T patent/ATE71168T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8903464A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3867462D1 (de) | 1992-02-13 |
HUT51698A (en) | 1990-05-28 |
ATE71168T1 (de) | 1992-01-15 |
EP0333827B1 (de) | 1992-01-02 |
HU206400B (en) | 1992-10-28 |
AU2533588A (en) | 1989-05-02 |
WO1989003464A1 (en) | 1989-04-20 |
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