DE1534434C

DE1534434C - Dismountable structure of a bridge or the like

Info

Publication number: DE1534434C
Authority: DE
Inventors: Hugo Dipl Ing 4140 Rhein hausen Sedlacek
Original assignee: Fried Krupp GmbH, 4300 Essen
Publication date: 1971-07-15

Description

1 21 2

Die Erfindung betrifft ein zerlegbares Tragwerk fache Steckmittel erforderlich sind und hierfür nurThe invention relates to a collapsible structure times plug-in means are required and only for this

einer Brücke od. dgl. mit zwei Hauptträgern, mit wenig Zeit benötigt wird.a bridge od. The like. With two main girders, with little time is needed.

biege- und torsionssteifen Querträgern, welche auf Weitere Merkmale der Erfindung sind GegenstandFlexural and torsionally stiff cross members, which are based on Further features of the invention are the subject

Vorsprüngen der beiden Hauptträgeruntergurte auf- der Unteransprüche.Projections of the two main girder lower chords on the subclaims.

liegen, und mit auf den Querträgern gelagerten Fahr- 5 In der Zeichnung sind Ausführungsbeispiele derlie, and with mounted on the cross members vehicle 5 In the drawing are exemplary embodiments of the

bahnplatten. Erfindung dargestellt, und zwar zeigtrailway slabs. Invention shown, namely shows

Bei einem bekannten Tragwerk (deutsche Aus- Fig. 1 eine zerlegbare Trogbrücke in Seiten-In a known structure (German Aus Fig. 1 a dismountable trough bridge in side

legeschrift 1090 699) sind die Querträger in die Stoß- ansieht,legend 1090 699) the cross members are in the butt joint,

fugen zwischen den Hauptträgerstücken eingesetzt F ί g. 2 die zugehörige Drauf sieht,joints inserted between the main girder pieces F ί g. 2 the associated top sees,

und durch die Kupplungsglieder, durch welche die io Fig. 3 einen Querschnitt durch diese Brücke, undand by the coupling members through which the io Fig. 3 shows a cross section through this bridge, and

Hauptträgerstücke miteinander verbunden sind, mit zwar im linken Teil mit einwandiger und im rechtenMain support pieces are connected to one another, although in the left part with single-walled and in the right

den Hauptträgerstücken verbunden. Bei dieser Bau- Teil mit zweiwandiger Ausführung,connected to the main support pieces. In this construction part with two-walled design,

art können die Querträger nur in ziemlich großen Fig. 4 einen Querträger in Seitenansicht,art, the cross members can only be seen in a fairly large Fig. 4 a cross member in side view,

Abständen voneinander, die gleich der Länge der F i g. 5 die zugehörige Drauf sieht,Distances from each other equal to the length of the F i g. 5 the associated top sees

Hauptträgerstücke oder — unter Voraussetzung 15 Fig. 6 den Schnitt in der Ebene VI-VI in Fig. 4,Main support pieces or - assuming 15 Fig. 6 the section in the plane VI-VI in Fig. 4,

einer Sonderkonstruktion der Hauptträgerstücke — F i g. 7 den Schnitt in der Ebene VII-VII ina special construction of the main girder pieces - F i g. 7 shows the section in the plane VII-VII in

gleich der halben Länge der Hauptträgerstücke Fig. 4,equal to half the length of the main support pieces Fig. 4,

sind, angeordnet werden. Außerdem müssen die Fig. 8 einen Querschnitt durch zwei Querträgerare to be arranged. In addition, Fig. 8 must have a cross section through two cross members

Querträger so lang ausgeführt sein, daß sie bei- mit einer Seitenansicht einer Fahrbahnplatte,Cross members be made so long that they - with a side view of a deck slab,

derseits durch Zwischenräume an den Stoßfugen 20 F i g. 9 einen lotrechten Längsschnitt durch einenon the other hand through gaps at the butt joints 20 F i g. 9 a vertical longitudinal section through a

der Hauptträgerstücke hindurchgesteckt werden Teil der Fahrbahnplatte,the main girder pieces are pushed through to form part of the deck slab,

können. Fig. 10 einen der Fig. 9 entsprechenden Schnittbe able. FIG. 10 shows a section corresponding to FIG. 9

Auch bei dem zerlegbaren Tragwerk der söge- mit einem Befestigungsmittel,Even with the demountable supporting structure of the so-called with a fastening means,

nannten D-Brücke (Zeitschrift »Der Stahlbau«, 1964, Fig. 11 einen Querschnitt durch eine zerlegbarecalled D-Bridge (magazine "Der Stahlbau", 1964, Fig. 11 a cross section through a collapsible

Seiten 117 bis 119), das aus zwei Hauptträgern und 25 Deckbrücke,Pages 117 to 119), which consists of two main girders and 25 deck bridges,

Querträgern besteht, welche die Hauptträger biege- Fig. 12 den Schnitt in der Ebene ΧΠ-ΧΙΙ inCross beams, which bend the main beams. Fig. 12 the section in the plane ΧΠ-ΧΙΙ in

steif miteinander verbinden und Auflager für Fahr- Fig. 11 in einem größeren Maßstab undrigidly connect together and supports for driving Fig. 11 on a larger scale and

bahnplatten bilden, sind die Querträger beiderseits F i g. 13 einen Querschnitt durch einen Teil einerForm track plates, the cross members on both sides are F i g. 13 shows a cross section through part of a

durch die als Fachwerke ausgebildeten Hauptträger zerlegbaren Brücke mit besonders niedrigen Haupt-due to the main girder, which is designed as a truss, which can be dismantled with particularly low main girders

hindurchgesteckt, so daß sie eine entsprechende 30 trägem.inserted through it, so that it is a corresponding 30 sluggish.

Länge haben müssen. Außerdem sind die Querträger Die Brücke nach Fig. 1 bis 3 hat zwei Fachwerk-Must have length. In addition, the cross beams are The bridge according to Fig. 1 to 3 has two truss

als I-Träger ausgebildet, und für die Auflagerung ist hauptträger 1, die aus untereinander gleichen Haupt-designed as an I-beam, and for the support is main girder 1, which consists of the same main

nur wenig Raum vorhanden, da die Querträger zwi- trägerstücken H zusammengesetzt und an ihrenonly little space is available, since the crossbeams are interposed between the carrier pieces H and attached to their

sehen zwei Diagonalstäben gelagert sind, zwischen Enden mit angesetzten Pfosten 3 auf den Wider-see two diagonal bars are mounted, between ends with attached posts 3 on the counter

denen sie mit waagerechten Scheiben biegesteif ein- 35 lagern abgestützt sind. Die Untergurte und Obergurtewhich they are supported with horizontal disks in a rigid manner. The lower chords and upper chords

gebunden sind. 37 der Hauptträger 1 sind aus unter sich gleichenare bound. 37 of the main girders 1 are made up of the same

Eine nur dem lichten Abstand der beiden Fach- und daher austauschbaren Gurtstücken zusammen-A strap that is only the clear distance between the two compartment and therefore interchangeable strap pieces

werkhauptträger entsprechende Länge haben die gesetzt. Diese bestehen aus Blechkästen von recht-the main girders have the corresponding length. These consist of sheet metal boxes from right

Querträger einer anderen bekannten zerlegbaren eckigem Querschnitt. Das in den Untergurten untenCross member of another known collapsible angular cross-section. That in the lower straps below

Brücke (Zeitschrift »Die Bautechnik«, 1944, S. 44). 40 und in den Obergurten oben liegende AbschlußblechBrücke (magazine "Die Bautechnik", 1944, p. 44). 40 and the top plate in the upper chords

Bei dieser Brücke sind die Querträger auf Vor- jedes Blechkastens ragt, wie F i g. 3 zeigt, beiderseitsIn this bridge, the cross members are protruding on the front of each sheet metal box, as shown in FIG. 3 shows both sides

Sprüngen der Hauptträgeruntergurte gelagert und mit über die Seitenwände 39 vor, so daß Vorsprünge 11Jumps of the main girder lower chords stored and with over the side walls 39, so that projections 11

den Untergurten durch Anschlußbleche, Winkelstähle gebildet werden. An den Enden weist jedes Gurt-the lower chords are formed by connecting plates, angle steels. At the ends of each belt

und Paßschrauben biegesteif verbunden. Dieser An- stück mehrschnittige Scharnierhälften 41 in gleicherand fitting screws rigidly connected. This piece of multi-section hinge halves 41 in the same

Schluß ist baulich aufwendig und erfordert eine lange 45 Anordnung auf, so daß je zwei Gurtstücke mit be-The end is structurally complex and requires a long 45 arrangement, so that each two pieces of strap with

Montagezeit. liebigen Enden in zueinander fluchtender Lage mitAssembly time. dear ends in mutually aligned position with

Der Erfindung liegt die Aufgabe zugrunde, ein gegenseitig zwischeneinander greifenden Scharnierzerlegbares Tragwerk dieser Art so zu gestalten, daß hälften 41 aneinandergesetzt werden können. Mit die lösbare biegesteife Verbindung zwischen den Bolzen, welche durch Bohrungen in die zwischen-Querträgern und den Hauptträgern baulich einfacher 50 einander greifenden Scharnierhälften von aneinander und schneller herzustellen ist. anschließenden Gurtstücken gesteckt werden, könnenThe invention is based on the object of providing a hinge that can be dismantled mutually between one another To make this type of structure so that halves 41 can be put together. With the releasable, rigid connection between the bolts, which are inserted through holes in the intermediate cross members and the main girders structurally simpler 50 interlocking hinge halves of one another and is faster to manufacture. subsequent strap pieces can be inserted

Das wird erfindungsgemäß dadurch erreicht, daß diese miteinander verbunden werden. Durch das die Querträger als Hohlkästen mit sich nach oben scharnierartige Aneinanderschließen der Gurtstücke verjüngendem trapezförmigem Profil und beiderseits in den Ober- und Untergurten werden die Hauptauskragendem oberem Abschlußblech sowie mit 55 trägerstücke H starr miteinander verbunden. Die beiderseitigen Stirnblechen ausgebildet sind, welche Scharnierhälften 41 dienen auch zum Anschluß der beiderseits über die geneigten Seitenwände des Hohl- an den Enden der Brücke befindlichen Hauptträgerkastens vorstehen und in den überstehenden Teilen stücke an den Pfosten 3. Jedes Hauptträgerstück hat mit Bohrungen für Steckbolzen versehen sind, die in drei Paar sich kreuzender Diagonalstäbe 43 und 44. den Hauptträgeruntergurten quer zur Tragwerks- 60 Diese greifen mit ihren Enden zwischen die Seitenlängsachse verschiebbar sind, und daß sich an den wände 39 der Gurtstücke und sind an diesen durch Ecken des unteren Abschlußblechs jedes Querträgers Bolzen befestigt. Je zwei Diagonalstäbe 43 und 44 Flansche befinden, die auf den Vorsprüngen der sind an den Kreuzungsstellen fest miteinander ver-Hauptträgeruntergurte aufliegen und mit Zapfen ver- bunden.This is achieved according to the invention in that these are connected to one another. The main cantilevered upper end plate and 55 girder pieces H are rigidly connected to each other by the transverse girders as hollow boxes with the chord pieces tapering trapezoidal profile on both sides in the upper and lower chords. The end plates on both sides are formed, which hinge halves 41 also serve to connect the main support box located on both sides of the inclined side walls of the hollow at the ends of the bridge and protrude in the protruding parts on the post 3. Each main support piece has holes for socket pins , which are in three pairs of crossing diagonal bars 43 and 44. the main girder lower chords transversely to the supporting structure 60 These grip with their ends between the side longitudinal axis are displaceable, and that on the walls 39 of the chord pieces and are on these through corners of the lower end plate of each cross member Bolt fastened. There are two diagonal rods 43 and 44 each flanges which rest firmly on the projections of the main girder lower chords at the crossing points and are connected with pegs.

sehen sind, die in Bohrungen der Vorsprünge ein- 65 Die beiden Fachwerkhauptträger 1 sind durchcan be seen, which are in the bores of the projections 65 The two truss main girders 1 are through

greifen. Querträger 100 rahmenartig miteinander verbunden,grasp. Cross member 100 connected to one another like a frame,

Das Tragwerk nach der Erfindung hat den Vorteil, so daß ein Trog gemäß Fig. 3 entsteht. Von denThe structure according to the invention has the advantage that a trough according to FIG. 3 is created. Of the

daß zum Verbinden der Querträger nur wenige, ein- Querträgern ist jeweils einer mittig zu einer Stoßfuge jthat to connect the crossbeams only a few, a crossbeam is each one in the middle of a butt joint j

Claims

3 43 4

arranged between two main support pieces H , and adjoining deck slabs 111 are through

in between there are two further cross members, horizontal pegs connected to each other, which are shown in

100 equidistant from each other. Bores 117 (FIG. 8) of the respectively adjacent

Each cross member 100 consists, as shown in FIG. 4 to 7 plate engage.

show, from a box girder of trapezoidal, 5 The carriageway slabs 111 transmit the occurring upwardly tapering cross-section. The punctiform traffic loads from each lower end plate 101 protrudes on both sides over the random point towards the bearing surfaces on the inclined side walls 102 and has cross members 100 on each cross member.

End of the cross member at the corners two flanges To provide elastic support for the panels

103 on, with which the crossbars on the previous to achieve the crossbars, these are on the

Cracks 11 of the main girder lower chords 37 supported upper end plates 105 with a rubber layer

is. At the bottom of the flanges are 118 (FIG. 7).

protruding socket pins 104, which are in the bores of the As FIGS. 3 and 4 show, the

jump 11 intervene. The upper end plate 105 of the cross members 100 lying track plates 111

the cross member also protrudes on both sides over the 15 bordered on both sides by Schrammbrden, which from

inclined end walls 102 before. It is the length of a main beam H on both of its pieces

Ends with end plates 105 α welded, on which are assembled.

the end faces of the side walls 102 bear. Figs. 11 and 12 illustrate that with

Front plates are along an edge 106, which also provide cover bridges to the parts described.

is above half the height of the cross member, according to 20 can be provided in which the roadway is above

the center of the cross member angled so that Hegt. The cross-section of a bridge like him

shows between the end plates 105 α and the flanges Fig. 11, results essentially from the fact that

103 niches are formed, in which the upper that the cross-section after the left skins of

The ends of the socket pins 104 protrude. This F i g. 3 is rotated by 180 °. The road slabs

Niches are stiffened by webs 107. 25 _s m ind however comparable above the transverse carrier 100

In the parts of the tray that protrude on both sides. They do not lie directly on the cross beams closing plates 105 α are located on above the edges 100, but on subcarriers 140th This 106 bores 108, in which bolts 13, which have in the, as F i g. 12 shows, a trapezoidal transverse main girder pieces cut transversely to the longitudinal direction of the bridge and lie with horizontally bevelled slidably guided, protrude. As a result, the edges 141 on the projections 11 of the main one prevent the cross members 100 from lifting up from the carrier upper straps 37, so that they lift the projections 11 off the load. transferred to this. The location of the sub-carriers

In addition, the cross members 100 with the 140 on the main beam upper straps 37 is through

Main support pieces connected by plates 109 , secured by locking pins, not shown. The driving

on the one hand on the upper cover plate 105 and 35 track plates 111 are on the intermediate carriers

on the other hand on a lying at the same height 140 in the same way as on the

The sheet metal of the main girder lower chord 37 and cross girders 100 of a trough bridge according to FIG. 3.

grip with pin 110 in holes in these sheets. F i g. 13 shows that bridges with low

The socket pins 104, the bolts 13 and the main girders essentially consist of the same structural

Pins 110 arranged on the plates 109 are 40 parts like the trough bridge according to FIG. 1 to 3 to-

the cross members 100 can be put together with the main girder lower chords. Here are the

37 connected in such a way that the main girder upper chord and main girder lower chord 37 in

Acting tensile and compressive forces as well as moments of small height on top of one another by means of buckles 145

are transferred, so a frame-like, rigid interconnected, the z. B. from simple

There are connections between the cross members 100 and the 45 metal sheets, which instead of the diagonal bars 43

Main beams is made. and 44 are attached to the end walls. the

As FIG. 8 shows, there are two cross members 100 each do not need the entire length of the buckles

a roadway plate 111 . To go through to each pair of main main girders, but it can

Supporting pieces H thus belong, as FIG. 2 shows, to three sheet metal pieces being arranged in gaps. Such

Roadway slabs 111. It is a hollow 50 bridge has the advantage that it is low in weight

plates, which, as Fig. 9 shows, has between two thin ones and the upper chord pieces can be easily opened by hand.

Plates 112 and 113 have an infill 114 , can be set, so only proportionally

so that cavities of triangular cross-section are required little time for assembly,
forms that extend over the entire length of the plate

extend. This is made of extruded aluminum claims _55:
parts welded together. To attach the 1st dismountable structure of a bridge or the like. Slabs 111 on the cross beams 100 are used with two main beams, with bending and torsion per se known eccentric bolts 115, which according to stiff cross beams, which on projections of FIG. 10 by a thickened part 116 of the lower two main girder lower chords rest, and with plate 113 and through bores in the upper decking plate 105 of the cross girder 100 supported by the upper 60 on the cross girder, characterized in that the cross members are inserted. The upper part of each eccentric bolt carrier (100) as a hollow box with upward 115 protrudes into an upwardly open space, tapering trapezoidal profile and both of which is formed by an upper end plate (105) which protrudes into the hollow plate. You can therefore from above 65 as well as with end plates (105 d) on both sides by means of a socket wrench the eccentric pin 115 are formed, which rotate on both sides over the inclined so that this protrudes the track slab 111 against th side walls (102) of the hollow box a lifting off the cross member 100 secures. The and in the protruding parts with holes

(108) are provided for socket pins, which are in the main girder lower chords (37) transversely to the longitudinal axis of the supporting structure are displaceable, and that there are flanges (103) at the corners of the lower end plate (101) of each cross member (100), which rest on the projections (11) of the main girder lower chords (37) and are provided with pegs are that engage in holes in the projections.

2. Structure according to claim 1, characterized in that the lower parts of the end plates (105 ä) are angled towards the center of the cross member (100) and in the niches formed by them and the lower end plate (101) over the flanges (103 ) protrude upwardly protruding parts of the pin designed as a socket pin (104).

3. Structure according to claim 2, characterized in that the crossbeams (100) with the main beams are also connected by plates (109), each on the upper end plate (105) of each cross member (100) on the one hand and on a sheet of the same height Main support lower belt (37) rest on the other hand, and that the sheets and plates through each other in bores engaging pins (110) are connected.

4. Dismountable structure of a deck bridge, characterized in that it consists of the main girders, the cross members (100) and the carriageway slabs (111) of a supporting structure according to one of claims 1 to 3 assembled in the manner is that the cross members (100) with their flanges (103) on the underside of projections (11) of the main girder upper chords (37) and the deck slabs (111) on intermediate girders (140) are attached, which rest on the top of the main support straps (37).

For this purpose 2 sheets of drawings