DE590754C - Welded beam - Google Patents

Welded beam

Info

Publication number
DE590754C
DE590754C DEV28416D DEV0028416D DE590754C DE 590754 C DE590754 C DE 590754C DE V28416 D DEV28416 D DE V28416D DE V0028416 D DEV0028416 D DE V0028416D DE 590754 C DE590754 C DE 590754C
Authority
DE
Germany
Prior art keywords
standing plate
welded
rivets
bolts
standing
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
DEV28416D
Other languages
German (de)
Inventor
Dipl-Ing Konrad Schmidt
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.)
Vereinigte Stahlwerke AG
Original Assignee
Vereinigte Stahlwerke AG
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 Vereinigte Stahlwerke AG filed Critical Vereinigte Stahlwerke AG
Priority to DEV28416D priority Critical patent/DE590754C/en
Application granted granted Critical
Publication of DE590754C publication Critical patent/DE590754C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408Joists; 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
    • E04C2003/0413Joists; 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408Joists; 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
    • E04C2003/0413Joists; 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
    • E04C2003/0417Joists; 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 demountable
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426Joists; 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
    • E04C2003/0434Joists; 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443Joists; 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
    • E04C2003/0452H- or I-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)

Description

Geschweißter Träger Die Erfindung bezieht sich auf geschweißte Träger, die aus einem Stehblech oder mehreren Stehblechen und- Gurten mit zwei oder mehr an den Rändern zusammengeschweißten Platten bestehen.Welded beam The invention relates to welded beams, those consisting of a standing sheet or several standing sheets and straps with two or more consist of plates welded together at the edges.

Die bekannteste Bauart dieser geschweißten Träger ist in Abb. i -der Zeichnung veranschaulicht, in der mit i das Stehblech, mit z die Platten und mit 3 die Schweißnähte bezeichnet sind. Bei -dieser Ausführungsform besteht die Gefahr, daß bei Druckbeanspruchung des Trägers die einzelnen Platten. oder Lamellen sich an den unverschweiß.ten Stellen bald voneinander abheben und ausknicken.The best known type of welded beam is shown in Fig. I -der Drawing illustrates in which with i the standing sheet, with z the plates and with 3 the welds are designated. In this embodiment there is a risk of that when the carrier is under pressure, the individual plates. or lamellar soon lift off from one another and buckle at the unwelded points.

Die zur Zeit -auf diesem Gebiet bestehenden Vorschriften schreiben vor, die Platten durch Schlitzschweißung miteinander zu verbinden, sofern das Verhältnis b (Plattenbreite) : b (Plattendicke) größer als 30 ist. Schlitze haben jedoch den Nachteil, daß sie eine verhältnismäßig große Schwächung des Materials mit sich bringen. Auch wenn die Schlitze vollständig mit Schweißgut ausgefüllt sind, trifft dies zu, so daß, nach den gültigen Vorschriften die Schlitzbreite sowohl im Zug- als auch im Druckgurt -vom Querschnitt anzuziehen ist, gleichviel ob der ganze Schlitz mit Schweißgut ausgefüllt ist oder nicht.The current regulations in this field stipulate that the plates should be connected to one another by slot welding, provided that the ratio b (plate width): b (plate thickness) is greater than 30 . However, slots have the disadvantage that they entail a relatively large weakening of the material. Even if the slots are completely filled with weld metal, this is the case, so that, according to the applicable regulations, the width of the slot in both the tension and compression chord must be tightened from the cross-section, regardless of whether the entire slot is filled with weld metal or not.

Um das Ausknicken der Lamellen zu vermeiden, ist man bereits dazu übergegangen, eine Unterteilung der Lamellen in der Mitte vorzunehmen, wie aus Abb. z ersichtlich ist. Abgesehen davon aber, daß dabei eine verhältnismäßig große Anzahl von Schweißnähten erforderlich ist, wird bei dieser Bauart der Gurtquerschnitt an der wichtigsten Stelle, nämlich am Anschluß des Steges, stark vermindert, was aus Festigkeitsgründen nachteilig ist.In order to prevent the slats from buckling, you are already there moved on to subdivide the lamellas in the middle, as shown in Fig. z can be seen. Apart from that, however, a relatively large number of weld seams is required, the belt cross-section is increased with this type of construction the most important point, namely at the connection of the bridge, greatly diminishes what is made of Strength reasons is disadvantageous.

Die Erfindung besteht nun darin, daß die Gurtplatten des geschweißten Trägers durch sie durchdringende, etwa in der Stehblechebene angeordnete Schraubenbolzen, Niete o. dgl. zusammengehalten sind, deren am Stehblech anliegende Ansätze an diesem seitlich angeschlossen sind. Auf diese Weise ist eine unmittelbare Verbindung der außenliegenden Lamellen mit dem Steg bzw. mit dem Stehblech geschaffen. Die bei Druckbeanspruchungen auftretendem. Kräfte senkrecht zur Längsachse der Lamellen werden bei der neuen Bauart von den Bolzen o. dgl. aufgenommen und unmittelbar auf das Stehblech übertragen, ohne daß die Schweißnähte, welche die einzelnen Lamellen verbinden, dadurch beansprucht werden. Ein Abheben der äußeren Lamellen von den darunterliegenden ist nicht mehr möglich, weil dies von den Bolzen o. dgl. verhindert wird.The invention consists in the fact that the belt plates of the welded Carrier through screw bolts that penetrate them and are arranged approximately in the plane of the standing plate, The rivets or the like are held together, the approaches of which lie against the standing plate on this are connected laterally. In this way an immediate connection is the created external slats with the web or with the standing plate. The at Pressure loads occurring. Forces perpendicular to the longitudinal axis of the lamellas Are in the new design of the bolts o. The like. And immediately on the standing plate transferred without the weld seams, which the individual slats connect, be stressed thereby. A lifting of the outer slats from the below it is no longer possible because this is prevented by the bolts or the like will.

Der mit der Erfindung erzielte Fortschritt ist im wesentlichen darin zu erblicken, daß die bei Beanspruchungen der verschiedensten Art 'in den Trägern auftretenden Kräfte in günstiger Weise aufgenommen werden, derart, daß die zahlreichen Schweißnähte in den Gurten zur Aufnahme dieser Kräfte nicht mit herangezogen werden -und daß eine nennenswerte Schwächung des Querschnittes der Platten nicht eintritt.The advance made by the invention is essentially therein to see that under stresses of the most varied kinds' in the girders occurring forces are absorbed in a favorable manner, so, that the numerous weld seams in the belts to absorb these forces are not are also used -and that a noticeable weakening of the cross-section the plates does not enter.

Die Verbindung der Schraubenbolzen", Niete o. dgl. mit dem Stehblech erfolgt zweckmäßig durch Schweißen.The connection of the screw bolts ", rivets o. The like. With the standing plate is expediently carried out by welding.

Um den Zusammenhalt der einzelnen Lamellen möglichst innig zu gestalten, können erfindungsgemäß die Bolzen, Niete o. dgl. an sich bekannte keilförmige oder konische Verdickungen mit schrägen Anzugsflächen besitzen, die in, entsprechende Ausnehmungen der Gurtplatten eingreifen.In order to make the cohesion of the individual slats as intimate as possible, According to the invention, the bolts, rivets or the like. Wedge-shaped or known per se have conical thickenings with inclined tightening surfaces in, corresponding Engage recesses in the belt plates.

Die am Stehblech anliegenden Ansätze der Bolzen, Niete o. dgl. liegen entweder einseitig an diesem an oder umfassen es gabelförmig, was den Vorteil hat, daß der Steg eine Führung erhält, welche die Montage und die Schweißarbeit erleichtert.The approaches of the bolts, rivets or the like lying on the standing plate are either on one side of this or embrace it in a fork shape, which has the advantage of that the web receives a guide that facilitates assembly and welding.

Die Abb. 3 bis 6 zeigen im Querschnitt bzw. in Seitenansicht einige Ausführungsbeispiele der Erfindung.Figs. 3 to 6 show some in cross-section and in side view Embodiments of the invention.

In den zusammengehörigen Abb.3 und ¢ werden die Lamellen-- mittels Versenkschrauben q. zusammengehalten. Die Ansätze 5 der letzteren umgreifen beiderseits das Stehblech i und geben ihm damit eine Führung. Die Verbindung der Schrauben q. mit dem Stehblech i erfolgt durch Verschweißung 6. Außerdem ist das Stehblech i unmittelbar mit der untersten Lamelle durch Schweißung 7 verbunden. Gemäß der Abb. 5 können statt der Schrauben Versenkniete 8 verwendet werden.In the related Fig. 3 and ¢ the lamellas are - by means of Countersunk screws q. held together. The approaches 5 of the latter encompass both sides the standing plate i and thus give it a guide. The connection of the screws q. with the standing sheet i is carried out by welding 6. In addition, the standing sheet i directly connected to the lowest lamella by welding 7. According to fig. 5 countersunk rivets 8 can be used instead of the screws.

Eine besonders einfache Ausführungsform zeigt die Abb.6, bei der als Verbindungselemente Rundeisen 9 verwendet werde, die sich einseitig gegen das Stehblech i legen.A particularly simple embodiment is shown in Fig.6, in which as Fastening elements round iron 9 are used, which are on one side against the standing plate i lay.

Claims (3)

PATENTANSPRÜCHE: i. Geschweißter Träger, der aus einem Stehblech oder aus mehreren Stehblechen und Gurten mit zwei oder mehr an den Rändern zusammengeschweißten Platten besteht, dadurch gekennzeichnet, daß die Gurtplatten durch sie durchdringende, etwa in der Stehblechebene angeordnete Schraubenbolzen, Niete o. dgl. zusammengehalten sind, deren am Stehblech anliegende Ansätze (5) an diesem seitlich angeschlossen sind. PATENT CLAIMS: i. Welded beam made from a standing plate or from several standing sheets and belts with two or more welded together at the edges Plates, characterized in that the belt plates penetrate through them, Screw bolts, rivets or the like arranged approximately in the plane of the standing plate are held together are whose attachments (5) resting on the standing plate are connected to this on the side are. 2. Geschweißter Träger nach Anspruch i, dadurch gekennzeichnet, daß die am Stehblech anliegenden Ansätze der Bolzen, Niete o. dgl. gabelförmig ausgebildet sind und das Stehblech beiderseits umgreifen. 2. Welded carrier according to claim i, characterized in that the am Studs of the bolts, rivets or the like resting against the standing plate are fork-shaped and grip the standing plate on both sides. 3. Geschweißter Träger nach den Ansprüchen i und 2, dadurch gekennzeichnet, daß zwecks Zusammenpressung der Gurtplatten die Bolzen, Niete o. dgl. keilförmige oder konische Verdickungen mit schrägen Anzugsflächen besitzen, die in entsprechende Ausnehmungen der Gurtplatten eingreifen.3. Welded beam according to the claims i and 2, characterized in that for the purpose of compressing the belt plates Bolts, rivets or the like. Wedge-shaped or conical thickenings with inclined tightening surfaces have which engage in corresponding recesses in the belt plates.
DEV28416D 1932-07-03 1932-07-03 Welded beam Expired DE590754C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV28416D DE590754C (en) 1932-07-03 1932-07-03 Welded beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV28416D DE590754C (en) 1932-07-03 1932-07-03 Welded beam

Publications (1)

Publication Number Publication Date
DE590754C true DE590754C (en) 1934-01-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012883A (en) * 1974-07-10 1977-03-22 Ludwig Muller Device for securing a beam to sheet piling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012883A (en) * 1974-07-10 1977-03-22 Ludwig Muller Device for securing a beam to sheet piling

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