DE294906C - - Google Patents
Info
- Publication number
- DE294906C DE294906C DENDAT294906D DE294906DA DE294906C DE 294906 C DE294906 C DE 294906C DE NDAT294906 D DENDAT294906 D DE NDAT294906D DE 294906D A DE294906D A DE 294906DA DE 294906 C DE294906 C DE 294906C
- Authority
- DE
- Germany
- Prior art keywords
- wire
- tubular
- concrete bodies
- metal
- individual
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 1
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
- E04C5/06—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/08—Rigid pipes of concrete, cement, or asbestos cement, with or without reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Description
KAISERLICHESIMPERIAL
S.;S .;
PATENTAMT.PATENT OFFICE.
Die als Einlage für rohrförmigc Betonkörper dienenden Metallgerippe, die aus Längsstäben mit entsprechendem Querverband bestehen, sucht man in bekannter Weise dadurch zu verstärken, daß man über das fertige rohrförmige Gitterwerk hinweg eine Drahtschraubc wickelt und mit demselben durch Bindedraht verknüpft.The metal framework, which is used as an insert for tubular concrete bodies, consists of longitudinal bars exist with a corresponding cross connection, one looks for it in a known manner reinforce that one wire screw c over the finished tubular latticework wraps and tied to the same by binding wire.
Die mit solchen Metallgerippen ausgestatteten Betonkörper, wie Rohre, Masten u. dgl., weisen aber eine zu große Elastizität auf. Es gilt deshalb, diese zu vermindern, was gemäß der Erfindung in folgender Weise geschieht.The concrete bodies equipped with such metal frames, such as pipes, masts, etc., but have too great an elasticity. It is therefore important to reduce this, which is appropriate of the invention is done in the following manner.
Die äußerlich auf das Metallgerippe aufgewickelte Drahtschraube wirkt wie eine Spiralfeder, nämlich bei Zug- und Druckbeanspruchung in der Richtung ihrer Achse, weil ihre einzelnen Windungen nur in der Längsrichtung des Drahtes zusammenhängen, während eine Verbindung in der Querrichtung des Drahtes gänzlich fehlt. Die Folge davon ist, daß sich die einzelnen losen Windungen in der Zugzone voneinander entfernen, während sie sich in der Druckzone einander nähern.The wire screw, which is externally wound onto the metal frame, acts like a spiral spring, namely in the case of tensile and compressive stress in the direction of their axis, because their individual Coils are only related in the longitudinal direction of the wire while making a connection completely absent in the transverse direction of the wire. The consequence of this is that the individual loose turns in the tension zone away from each other as they approach each other in the print zone.
Eine einzige Drahtwickelung hat also an sich nur geringen Halt und kann demnach auch nur wenig zur Versteifung des Werkstückes beitragen.A single wire winding therefore has little hold and can therefore also contribute little to the stiffening of the workpiece.
Dieser Mangel wird nun gemäß der Erfindung dadurch beseitigt, daß eine zweite, der ersten Drahtwickelung entgegengesetzt gerichtete Schraubenwickelung über das in Rohrform geschlossene Gitter gebracht wird.This deficiency is now eliminated according to the invention in that a second, the first wire winding oppositely directed helical winding over the tubular closed grid is brought.
Die Kreuzungspunkte beider Spiralen werden dann miteinander und zugleich mit dem darunter befindlichen Rohrgitter durch Bindedraht verknüpft.The points of intersection of both spirals are then with each other and at the same time with the The tubular grids underneath are linked by binding wire.
Hierdurch sind die Abstände der einzelnen Windungen bei beiden Schraubengängen festgelegt, da beide jetzt miteinander ebenfalls ein unverrückbares viereckiges Maschenwerk bilden.This defines the distances between the individual turns for both screw threads, since both now also form an immovable square mesh with each other.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE294906C true DE294906C (en) |
Family
ID=549430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT294906D Active DE294906C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE294906C (en) |
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0
- DE DENDAT294906D patent/DE294906C/de active Active
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