DE2036924B

DE2036924B - Device for supporting a bridge superstructure on abutments and intermediate supports while it is being pushed in

Info

Publication number: DE2036924B
Authority: DE
Inventors: Auf Nichtnennung Antrag
Original assignee: Compagnie Industrielle de Travaux, Paris

Description

der Unterseite des Überbauabschnittsthe underside of the superstructure section

26 angeordnet, deren Höhe ein wenig kleiner als die rung nrn aer großen Reibungsbeiwms26 arranged, the height of which is a little smaller than the size of the large friction coefficient

kleinste Höhe der Gleitbahn 22 ist, Die Stütze 2 kommt, wird« » ■ » _wewntij_Bb größer ist trägt außerdem vor und hinter den Blöcken 25 und an seiner "3Jr? _{rt a} ^B _{n der} mit Ausnehmungen 26 hydraulische Pressen 31, die in besonderen Aus- als ^r Reibungsp^m* , _nen Gleitplatte 40 gegennehmungen vertikal angeordnet und je auf einer 5 oder Vertiefungen ν » _{sjch vorwärtsbewe}.The smallest height of the slide 22 is, the support 2 comes, becomes «» ■ » _if ij _B b is larger also carries in front of and behind the blocks 25 and at its" 3Jr? _{rt a} ^B _{n the} with recesses 26 hydraulic presses 31, the in special training as ^ r Reibungsp ^m *, _NEN slide plate 40 gegennehmungen arranged vertically and depending on a 5 or depressions ν _{"sjch vorwärtsbewe.}

P₃*.«*,_W,.«,e » „ N«,p_ren .*■*» gSi^S _{to D}„_stellu„_{B (ter} Ein Überbauabschnitt, z. B. der Kostenträger- Der Stutzgeitiv°Φ ^r _{R und betei},_{igt sich ZUIieh}. abschnitt 8 der Brücke, ist auf der Gleitbahn 22 mit Fi g..3 ^De^^eils'"' 7__{hm von} Stützkräften ,um Ab- P ₃ *. "*, _W ,.", E "" N ", p _ren . * ■ *" gSi ^ S _{to D} " _stellu " _{B (ter} A superstructure section, e.g. the cost bearer- Der Stutzgeitiv ° Φ ^r _{and R BETEI,} _{to ZUIieh IGT.} portion 8 of the bridge is on the track 22 with Fi g..3 ^De ^ ^Eils' '' 7_ _{hm of} support forces to waste

voneinander unabhängigen β^ΙζρΙβίΐ^φβΓη 35, 36, ια —" ^A "^{n Her} uoeraww ..independent β ^ ΙζρΙβίΐ ^ φβΓη 35, 36, ια - " ^A " ^{n Her} uoeraww ..

37 und 38 abgestützt. Jeder Stützgleitkörper, beispielsweise der Stützgleitkörper 35, besteht aus einer
mit Einlagen versehenen oder bewehrten dicken
Platte 39 eines Materials aus der Gruppe der Elastomere, die an ihrer Unterseite mit einer ihrerseits an 15 r>wt ta stent wiru ei "«" »- ihrer Unterseite mit Ausnehmungen oder Vertiefun- auf dem Ott«/" => > _inzwj_SCben ger. verseheneu Gleitplatte 40 aus Tetrafluoräthylen ""^A ^{im TTmlauf an Meue ucs} verbunden ist. Die Pfeilhöhe der nach oben gebogenen Gleitbahn 22 ist größer als das höchste Zusammendrückmaß des elastisch nachgiebigen Mate- 20
rials des Stützgleitkörpers. Man kann infolgedessen Vorrichtung wb^' ,TnH^ohne" Totzeiten erfolgen, die Stützgleitkörper 35, 36, 37 und 38 leicht zwi- ^ ^SEu toVoÄChubs ist nicht durch den sehen den Überbauabschnitt 8 und die Gleitbahn 22 Die 5 ^v'Uifhoresse begrenzt, der sehr lang auseinfuhren. So wird der Stützgieitkörper 35, der zu- ^H»?.^^S£X^«rii nicht durch cue nächst auf den Block 25 gesetzt wird, mit der Hand 25 gefuhrt werden kann,^ _enbauen der hinter- oder durch eine mechanische Vorrichtung bis iu Zwischenzeiten tür aas z, _{bschnitte unter}. seinem Anstoßen an den Stützgleitkörper 36 vor- einander hergestellten geschoben. Sowie der Stützgleitkörper 35 in Beruh- brachen werden.37 and 38 supported. Each support sliding body, for example the support sliding body 35, consists of one
reinforced or reinforced thicknesses
Plate 39 of a material from the group of elastomers, which on its underside with a turn of 15 r> wt ta stent Wiru ei """" - their underside with recesses or depressions on the Ott "/"=>> _inzw j _SC Ben ger. providedeu sliding plate 40 made of tetrafluoroethylene "" ^A ^{is connected to Meue ucs in the course of the run} . The arrow height of the upwardly curved slide 22 is greater than the maximum compression of the resilient material 20
rials of the support sliding body. As a result, device wb ^ ', TnH ^ without dead times, the support sliding bodies 35, 36, 37 and 38 easily between ^ ^ SEu toVoÄChubs is not limited by the see the superstructure section 8 and the slideway 22 The 5 ^ v'Uifhoresse the very long auseinfuhren. So?. Stützgieitkörper of 35, the ^to-H "^^ S £ X ^" rii is not next by cue is set to the block 25, can be guided by hand 25 ^ _enbauen behind - or by means of a mechanical device until in the meantime door aas z, _{sections are pushed under} its abutment on the supporting sliding body 36. As well as the supporting sliding body 35 is broken.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Parts contain, their longitudinal profile can also be

. Claim: somewhat asymmetrical to the vertical central axis of the

Be support; for example, a long

From the device to 'support a bridging ramp to introduce the Stüteliberbau on abutments and intermediate connection 5 sliding bodies and a significantly steeper ramp during the. Insertion, consisting of at least the drainage side of the support sliding body, on the best of a slide and a vertical release them from the engagement,
The invention has the advantage that the vertically underside sliding surface in contact with the compressible, elastically flexible supporting slideway and its upper supporting surface with io sliding bodies without lifting the superstructure can be exchanged with a higher coefficient of friction in contact with the and thus no under - The superstructure is standing, which means that the feed movement must be broken.
The invention is continuously explained by way of example on the basis of an embodiment in the direction of the feed movement, which is generally illustrated in the drawing, which is auctioned off and then declined again. It shows

Has cylindrical surface, the straight Mantelluiien Fig. 1 is a schematic representation of the vertical to the direction of advance of the superstructure sliding a bridge superstructure that lies on the and that the support device is supported by a device designed in accordance with the claim reren is between the slide (22) and the superstructure,

supporting sliding bodies (35 to 38) are added, so Fig. 2 shows the connection on a larger scale

successive superstructure sections to be pushed in and

F i g. 3 shows a schematic partial longitudinal section

the upper part of an intermediate support on which one

45 the superstructure supporting device according to the invention

The invention relates to a device for dispensing.

• Support a bridge superstructure on abutments and the die shown in FIG. 1 bridge shown has a counter-intermediate support during the pushing in, bearing piers 1 and intermediate supports 2, 3, 4 etc. The It consists of at least one slideway and a superstructure of the bridge consists of vertically one behind the other resilient support device, de- 30 ordered box girder sections 6 to 12, the Ren underside sliding surface in contact with one after the other and one behind the other on a finished sliding track and their upper-side support surface with hoist bed 13 are produced and prestressed. In hem coefficient of friction in contact with the over- Fig. 1 is a on the manufacturing bed construction stands. Box girder section 16. According to a known support device, every 35 push of the bridge superstructure is wiped back the slideway and the superstructure inserted, mutually arranged box girder sections in c'er connected to one another from a Schiit- manner provided with a rubber bearing, as shown in FIG. 2 shows. th existing support structure for the duration of two successive box girder sections of each feed step by friction with the are clamped together by ropes 14 d \ .ijrt that Superstructure connected. After each feed step 40, they have limited moments at the connection point the superstructure must be able to accommodate the size of the Schiit to move back.

at least raised to its starting position and, after a scaffold 17 is attached to the abutment pillar 1

this has happened. built back on the back, on which two hydraulic presses 18 with

benen sledge to be lowered so that he is connected for the large Huhweit, each on

next feed step is ready. At this front 45 the one and the other side of the superstructure are

direction thus arise during the advance. The piston rods of the presses 18 are each through one

larger dead times. The length of the feed step tie rod 20 with one on the box girder section

in the extreme case corresponds to the length of the slideway. Bracket 19 fastened in a tensile manner is connected.

The invention is based on the object of a How F i g. 3 shows, each device for

To create a device in which the mei? *. a 5 ° support of the bridge superstructure a slideway 22

A relatively large amount of time required, which consists of a thick base plate 23 made of concrete

raising and lowering of the superstructure is not required and a cover 24 made of stainless steel

Is high and consists of longer feed steps.

can be guided. The upper side of the base plate 23 and the cover The solution consists in the fact that the slideway the 55 kung 24 have the shape of a general cylindrical shape in the direction of the feed movement of the surface, the < ., Straight surface lines horizontally and steadily rising and falling again - has a cylindrical surface perpendicular to the direction of advance of the bridge overhang, the straight shell of which and thus also the superstructure sections run perpendicular to the direction of advance of the superstructure. The cross-section of the top of the sliding beds, and that the supporting device consists of several tracks in the axial longitudinal plane of the superstructure. In the exemplary embodiment, an arc of a circle with supporting sliding bodies is to be inserted between the sliding path and the superstructure. large radius, the center of which lies on the vertical axis of the support, which means that the slide 22, which fulfills the specified conditions, continuously increases in feed rate and the slide is to be understood, i.e. not just strips 65 falls again and is symmetrical to the vertical axis from the jacket of a circular cylinder or a keder support.

gets. So kann z. B. die Gleitbahn auch einen mitt* Vor und hinter der Gleitbahn 22, gesehen in Rich-gets. So z. B. the slide also has a middle in front of and behind the slide 22, seen in the direction

leren geradlinigen Teil zwischen zwei gekrümmten tung der Vorschubbewegung 27, sind Blöcke 25 undleren rectilinear part between two curved direction of the feed movement 27, are blocks 25 and