DE1825643U - MULTI-PANEL MADE OF SEVERAL ALTERNATING LAYERS GLUED TOGETHER WITH PLYWOOD LAYERS. - Google Patents

MULTI-PANEL MADE OF SEVERAL ALTERNATING LAYERS GLUED TOGETHER WITH PLYWOOD LAYERS.

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Publication number
DE1825643U
DE1825643U DE1960P0017460 DEP0017460U DE1825643U DE 1825643 U DE1825643 U DE 1825643U DE 1960P0017460 DE1960P0017460 DE 1960P0017460 DE P0017460 U DEP0017460 U DE P0017460U DE 1825643 U DE1825643 U DE 1825643U
Authority
DE
Germany
Prior art keywords
layers
plywood
glued together
panel made
several alternating
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
Application number
DE1960P0017460
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILHELM POPPENSIEKER FA
Original Assignee
WILHELM POPPENSIEKER FA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WILHELM POPPENSIEKER FA filed Critical WILHELM POPPENSIEKER FA
Priority to DE1960P0017460 priority Critical patent/DE1825643U/en
Publication of DE1825643U publication Critical patent/DE1825643U/en
Expired legal-status Critical Current

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  • Veneer Processing And Manufacture Of Plywood (AREA)

Description

"Stegplatte aus mehreren abwechselnd mit Sperrholzschichten zusammengeleimten Schichten" Beschreibung."Multi-wall sheet made of several alternating layers of plywood glued together Layers "description.

Es sind bereits Holzträger zur Verwendung in Stegbauweise bekannt, die aus zwei oder mehreren Lagen Weichholz durch Leimung miteinander verbunden sind. There are already known wooden beams for use in web construction, which are made of two or more layers of softwood that are glued together.

Die Tragefähigkeit eines solchen Bauelements kann nur durch eine Absperrung erreicht werden, und zu diesem Zweck wurde die Faserrichtung wenigstens einer der Weichholzlagen zu jener der übrigen Lagen unter einem Winkel angeordnet. Hierbei schwindet jedoch die Höhe der Biegetragfähigkeit mit wachsendem Winkel zwischen diesen Faserrichtungen. The carrying capacity of such a component can only be achieved by a Barrier can be achieved, and for this purpose the grain direction was at least one of the softwood layers arranged at an angle to that of the other layers. Here, however, the height of the bending capacity decreases with increasing angle between these fiber directions.

Andererseits sind bereits auch Stegträger nicht mehr neu, die ganz aus Buchensperrholz bestehen. Die Werte der zulässigen Spannungen für diese Bauelemente liegen verhältnismäßig hoch. Jedoch sind derartige Elemente anderen Ausführungsformen gegenüber nicht preisgünstig. On the other hand, I-joists are no longer new either, they are completely consist of beech plywood. The values of the allowable voltages for these components are relatively high. However, such elements are other embodiments not cheap compared to.

Der Neuerung liegt die klare Erkenntnis dieser Verhältnisse und die Aufgabe zu Grunde, ein Konstruktionselement zu schaffen, das unter Beibehaltung der Vorteile der bekannten Träger deren Nachteile vermeidet. The innovation lies in the clear knowledge of these relationships and the The basic task is to create a construction element that while maintaining the advantages of the known carrier avoids their disadvantages.

Gemäß der Neuerung ist dies in idealer weise dadurch möglich geworden, daß man Sperrholzplatten aus einem Hartholz, holz, zweckmäßig Buche, mit Schichten aus hochkantstehenden Brettern verleimt, die aus einem eichholz, vorzugsweise Fichte, bestehen. According to the innovation, this has ideally become possible by that one plywood sheets from a hardwood, wood, suitably beech, glued with layers of edgewise boards made of oak, preferably Spruce, consist.

Es ist zwar bereits vorgeschlagen worden, die Stege von Trägern durch Leimung aus mehreren Schichten zu bilden, wobei Sperrholzplatten mit hochkantstehenden Brettern abwechseln. Jedoch war man stets der Auffassung gewesen, hierbei müßten sämtliche Platten aus gleichartigem Holz, also entweder nur aus Hartholz oder aber nur aus Weichholz bestehen. Although it has already been proposed to carry the webs through Form glue from several layers, with plywood sheets standing on edge Alternate boards. However, one had always been of the opinion that this should be done all panels made of the same type of wood, either only made of hardwood or else consist only of softwood.

Man war nämlich der Auffassung, eine durch Leimung hergestellte starre Verbindung von vieichholz-mit Hartholzlagen vmrde bei klimatischen Beanspruchungen infolge der Verschiedenartigkeit des Materials und der dadurch bedingten Unterschiedlichkeit der Ausdehnungen und des Schwindens Nebenspannungen in den Leimfugen ergeben, die deren teilweise Zerstörung hervorrufen müßten.It was believed that a rigid one produced by gluing Connection of vieichholz with hardwood layers vmrde with climatic stresses as a result of the diversity of the material and the resulting diversity the expansion and shrinkage result in secondary stresses in the glue joints, which their partial destruction would have to cause.

Erst systematische Untersuchungen bei einer amtlichen Materialprüfungsanstalt haben die überraschende Erkenntnis ergeben, daß die seitherige Fachmeinung irrig war, und daß jene befürchteten Nachteile nicht eintreten. First systematic examinations at an official material testing institute have made the surprising finding that the expert opinion since then is erroneous and that those feared disadvantages do not occur.

Das neue Bauelement läßt sich in kurzzeitiger und einfacher Vorbereitungs-und Herstellungsarbeit erzeugen und ist deshalb trotz der Verwendung der an sich teuren Buchensperrholzlagen preisgünstig und konkurrenzfähig. Bei hoher Biegetragefähigkeit weist es eine gute Absperrung zur Erreichung einer hohen Scherbeanspruchung auf. The new component can be quickly and easily prepared and Produce manufacturing labor and is therefore expensive in spite of the use of the per se Beech plywood layers inexpensive and competitive. With high flexural strength it has a good barrier to achieve a high shear stress.

An Hand der Zeichnung ist die Neuerung beispielsweise erläutert. The innovation is explained using the drawing, for example.

Fig. 1 zeigt im Querschnitt eine aus drei Lagen zusammengeleimte Stegplatte. Die beiden äußeren Lagen a, b sind aus hochkantstehenden Brettern aus einem Weichholz, z. B. Fig. 1 shows in cross section a glued together from three layers Multiwall sheet. The two outer layers a, b are made of upright boards a softwood, e.g. B.

Fichte, gebildet, deren Faser in Richtung der Stegachse verläuft. läuft. Die mittlere Lage c besteht aus einem Hartzholzfurnier, z. B. aus Buche.Spruce, the fibers of which run in the direction of the web axis. runs. The middle layer c consists of a hardwood veneer, e.g. B. made of beech.

Die Fig. 2 und 3 lassen jeweils im Querschnitt erkennen, daß eine solche Stegplatte in hervorragender Weise geeignet ist, durch Ansetzen entsprechender Elemente d Träger üblichen Querschnitts und Profils zu erzeugen. Schutzanspruch Stegplatte aus mehreren abwechselnd mit Sperrholzschich- ten zusammengeleimten Schichten aus hochkantstehenden Brettern, 2 and 3 each show in cross section that such a web plate is excellently suited to produce the usual cross-section and profile by attaching appropriate elements to the carrier. Claim to protection Multi-skin sheet made of several alternating layers of plywood ten layers of upright boards glued together,

Claims (1)

deren Längskanten parallel zur Stegrichtung liegen, zur Herstellung tragender Bauteile, z. B. von Trägern, dadurch gekennzeichnet, daß die Sperrholzplatten (c) aus einem Hartholz, zweckmäßig Buche, und die Bretter (a, b) aus einem Weichholz, vorzugsweise Fichte, bestehen.the longitudinal edges of which are parallel to the web direction, for production load-bearing components, e.g. B. of beams, characterized in that the plywood panels (c) from a hardwood, suitably beech, and the boards (a, b) from a softwood, preferably spruce.
DE1960P0017460 1960-11-22 1960-11-22 MULTI-PANEL MADE OF SEVERAL ALTERNATING LAYERS GLUED TOGETHER WITH PLYWOOD LAYERS. Expired DE1825643U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1960P0017460 DE1825643U (en) 1960-11-22 1960-11-22 MULTI-PANEL MADE OF SEVERAL ALTERNATING LAYERS GLUED TOGETHER WITH PLYWOOD LAYERS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1960P0017460 DE1825643U (en) 1960-11-22 1960-11-22 MULTI-PANEL MADE OF SEVERAL ALTERNATING LAYERS GLUED TOGETHER WITH PLYWOOD LAYERS.

Publications (1)

Publication Number Publication Date
DE1825643U true DE1825643U (en) 1961-01-26

Family

ID=32976373

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1960P0017460 Expired DE1825643U (en) 1960-11-22 1960-11-22 MULTI-PANEL MADE OF SEVERAL ALTERNATING LAYERS GLUED TOGETHER WITH PLYWOOD LAYERS.

Country Status (1)

Country Link
DE (1) DE1825643U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079761A1 (en) * 1981-11-18 1983-05-25 Metsaliiton Teollisuus Oy A sturdy I-girder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079761A1 (en) * 1981-11-18 1983-05-25 Metsaliiton Teollisuus Oy A sturdy I-girder

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