DE803674C - Reinforced concrete support member - Google Patents
Reinforced concrete support memberInfo
- Publication number
- DE803674C DE803674C DENDAT803674D DE803674DA DE803674C DE 803674 C DE803674 C DE 803674C DE NDAT803674 D DENDAT803674 D DE NDAT803674D DE 803674D A DE803674D A DE 803674DA DE 803674 C DE803674 C DE 803674C
- Authority
- DE
- Germany
- Prior art keywords
- support member
- reinforced concrete
- connecting elements
- concrete support
- section
- 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.)
- Expired
Links
- 239000011150 reinforced concrete Substances 0.000 title claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 4
- 238000009415 formwork Methods 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000295 complement Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
- E04B5/261—Monolithic filling members
- E04B5/265—Monolithic filling members with one or more hollow cores
-
- 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
- E04C5/065—Light-weight girders, e.g. with precast parts
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Description
Die Tragfähigkeit von auf Biegung beanspruchten Stahlbetonkonstruktionen beruht auf den sich gegenseitig ergänzenden Eigenschaften der Werkstoffe Beton und Stahl, wobei der Beton die Druckkräfte und der Stahl die Zugkraft übernehmen.The load-bearing capacity of reinforced concrete structures subject to bending is based on the Mutually complementary properties of the materials concrete and steel, whereby the concrete has the compressive forces and the steel takes over the pulling force.
Nach dem heutigen Stand der Technik können bei derartigen Verbundkonstruktionen zwei Arten gemäß ihrer Ausführungsweise unterschieden werden. According to the current state of the art, such composite structures can be of two types can be distinguished according to their design.
ίο i. Ausführung an Ort und Stelle zwischen Schalung, die als monolythische Bauweise bezeichnet werden kann, weil eine Vielzahl von einzelnen Konstruktionselementen zu einem statisch einheitlich zusammenwirkenden Traggebilde vereinigt wird.ίο i. Execution in place between Formwork, which can be called monolithic construction, because a large number of individual Structural elements combined into a statically uniformly cooperating supporting structure will.
2. Fertigteilkonstruktionen, die aus einzelnen, für sich biegungssteifen, fabrikmäßig hergestellten Traggliedern bestehen, die an der Baustelle mehr oder minder lose aneinandergereiht werden.2. Prefabricated constructions, which are manufactured from individual, individually rigid, factory-made There are support members that are more or less loosely strung together at the construction site.
Beiden Konstruktionen haften erhebliche Nachteile an, die u. a. bei der Ausführung an Ort und Stelle in der Verschalung und dem erheblichen Verbrauch an Verschalung bestehen und bei der Fertigteilkonstruktion in den hohen Transportkosten. Both constructions have considerable disadvantages, including: when executing on site and Place in the formwork and the considerable consumption of formwork and exist in the Precast construction in high transportation costs.
Die Erfindung trägt dem dadurch Rechnung, daß ein Tragglied aus Stahlbeton mittig bewehrt und vorgespannt ist. Dieses Tragglied stellt also die Zugzone des aus ihm zu erstellenden Trägers dar und weist sich in die Druckzone des aus ihm zu erstellenden Trägers erstreckende Verbindungselemente auf. Zweckmäßig wird hierfür ein sich über die Länge des Traggliedes erstreckendes Metallband verwendet. Das Tragglied besitzt rechteckigen Querschnitt, in dessen eine Breitseite die Verbindungselemente einmünden.The invention takes this into account in that a support member made of reinforced concrete is reinforced in the middle and is biased. This support member thus represents the tension zone of the beam to be created from it and has connecting elements extending into the pressure zone of the carrier to be created from it on. For this purpose, one extending over the length of the support member is expedient Metal band used. The support member has a rectangular cross-section, one broad side of which the connecting elements open.
Die Zeichnung zeigt Ausführungsformen des Gegenstandes der Erfindung, und zwar
Fig. ι ein Tragglied im Schnitt,The drawing shows embodiments of the subject matter of the invention, namely
Fig. Ι a support member in section,
Fig. 2 ein Tragglied im Aufriß,Fig. 2 is a support member in elevation,
Fig. 3 eine Decke im Querschnitt,
Fig. 4 einen Schnitt durch einen Träger.
Gemäß der Ausführungsform der Fig. 1 und 2 besteht das Tragglied aus einem Stahlbetonbalken 1
rechteckigen Querschnitts, der mittig angeordnete, vorgespannte Bewehrungen 2 aufweist. Wesentlich
ist, daß die vorgespannten Bewehrungen 2 mittig im Körper 1 untergebracht sind, denn nur in diesem
Falle ist das Tragglied in der Lage, die Funktionen der üblichen Zugbewehrung aus Metallstäben
zu übernehmen. In das Tragglied 1 ist ein mit Durchlochungen versehener Metallstreifen 3
eingebettet, der sich, wie aus Fig. 3 ersichtlich, in die Zugzone des aus dem Tragglied 1 zu erstellenden
Bettes erstreckt. Der Metallstreifen 3 schafft damit die erforderliche Verbindung zwischen Zugzone
und Druckzone. Die Höhe des Traggliedes 1 gegenüber dem daraus zu erstellenden Träger ist
so, daß es sich nicht über die Nullinie hinaus erstreckt. Das Tragglied besitzt zunächst nur eine
begrenzte Tragfähigkeit. Es muß bis zum Erhärten des an Ort und Stelle eingebrachten Betons
in die Druckzone unterstützt werden.3 shows a ceiling in cross section,
4 shows a section through a carrier.
According to the embodiment of FIGS. 1 and 2, the support member consists of a reinforced concrete beam 1 of rectangular cross-section, which has prestressed reinforcements 2 arranged in the middle. It is essential that the prestressed reinforcements 2 are accommodated in the center of the body 1, because only in this case is the support member able to take on the functions of the usual tensile reinforcement made of metal rods. A metal strip 3 provided with perforations is embedded in the support member 1 and, as can be seen from FIG. 3, extends into the tension zone of the bed to be created from the support member 1. The metal strip 3 thus creates the necessary connection between the tension zone and the pressure zone. The height of the support member 1 in relation to the carrier to be created therefrom is such that it does not extend beyond the zero line. The support member initially has only a limited load-bearing capacity. It must be supported in the pressure zone until the concrete placed in place has hardened.
Aus Fig. 3 ist ersichtlich, daß die Tragglieder 1 in Verbindung mit den Hohlsteinen 4 die Verschalung für den Gesamtträger 5 darstellen, der sich demnach aus dem Tragglied 1, nämlich der Zugzone, und der Druckzone 5 zusammensetzt.From Fig. 3 it can be seen that the support members 1 in connection with the hollow stones 4 form the casing represent for the overall support 5, which is therefore made up of the support member 1, namely the Tensile zone, and the pressure zone 5 composed.
Fig. 4 stellt den Schnitt durch einen Träger rechteckigen Querschnitts dar, bei dem die Zugbewehrung durch das mittig vorgespannte Glied 1 gebildet ist. Als seitliche Schalung für den an Ort und Stelle einzubringenden Beton sind beidseits Betonplatten 6 oder Ziegel hochkant in Mörtel verlegt. Der Zwischenraum 7, die Druckzone, ist ausbetoniert. Fig. 4 shows the section through a beam of rectangular cross-section, in which the tensile reinforcement is formed by the centrally pretensioned member 1. As side formwork for on-site and the concrete to be poured in, concrete slabs 6 or bricks are laid upright in mortar on both sides. The space 7, the pressure zone, is concreted.
Das serienmäßig in hierfür geeigneten Fertigungsstätten hergestellte Glied 1 ist leicht zu transportieren und leicht zu verlegen. Es kann ebenso rasch verlegt werden, wie die sonst erforderliche Verschalung. Schalungsverschnitt liegt nicht vor, da das Glied 1 selbst die Verschalung bildet. Der Stahlverbrauch ist außerordentlich gering; die Anwendungsmöglichkeit ist sehr groß. Das Glied läßt sich nicht nur zur Herstellung von massiven Deckenplatten verwenden, sondern auch, wie gezeigt, zur Herstellung von Hohlsteindecken.The link 1, which is produced in series in suitable manufacturing facilities, is easy to transport and easy to relocate. It can be laid just as quickly as the one otherwise required Cladding. There is no formwork scrap, since the link 1 itself forms the formwork. Of the Steel consumption is extremely low; the application possibilities are very large. The Member can not only be used for the production of solid ceiling tiles, but also, as shown, for the production of hollow stone ceilings.
Claims (4)
Publications (1)
Publication Number | Publication Date |
---|---|
DE803674C true DE803674C (en) | 1951-02-08 |
Family
ID=578032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT803674D Expired DE803674C (en) | Reinforced concrete support member |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE803674C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1089346B (en) * | 1957-02-19 | 1960-09-22 | Beteiligungs & Patentverw Gmbh | Compound shaft extension |
DE1229270B (en) * | 1962-05-30 | 1966-11-24 | Harald Richter Dr Ing | Reinforced concrete rib ceiling |
FR2138347A1 (en) * | 1971-05-24 | 1973-01-05 | Roque Raymond |
-
0
- DE DENDAT803674D patent/DE803674C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1089346B (en) * | 1957-02-19 | 1960-09-22 | Beteiligungs & Patentverw Gmbh | Compound shaft extension |
DE1229270B (en) * | 1962-05-30 | 1966-11-24 | Harald Richter Dr Ing | Reinforced concrete rib ceiling |
FR2138347A1 (en) * | 1971-05-24 | 1973-01-05 | Roque Raymond |
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