DD288951A7 - LONG-TERM AND QUICK-RELEASE FAST-MOUNTING BRACKET - Google Patents

Abstract

The bridge can be designed for temporary use in small, medium and large Stuetzweitenbereich. The aim of the invention is to provide a bridge that can be erected and demanbed shortly and with simple technical means. The main task is to create a structure that can be adapted to all local conditions. This should be possible for the small, medium and large Stuetzweitenbereich without dasz different Brueckensysteme or types must be maintained. According to the invention, the object is achieved in that the superstructure is formed from different individual segments by means of a combination, whereby 5 segment types and one ramp part are used which differ geometrically and constructively, but through the optional combination allow a universal adaptation to local conditions. In use multi-field structures are statically determined form by the head bolts are screwed dead on the upper flange of the socket pin connection. The mounting rollers also serve as a bridge bearing. Gradient changes to the terrain adjustment are possible within the structure. For this purpose, different thickness Druckstuecke be stored in the Obergurtstoesze between the segments. The segments can be prefabricated and are used wherever short-term obstacles to the creation of traffic routes have to be bridged. Main application area may be Havariefaelle. Fig. 1

Description

For this 3-page drawings

Field of application of the invention

The field of application of the bridge relates to the temporary use of the collapsible bridge preferably as a road bridge in the small, medium and large span area for short-term and temporary restoration and new buildings.

Characteristic of known technical solutions

The known collapsible bridges are not applicable in the required variety. Thus, the required span areas can not be covered comprehensively enough and partly the Muterialelnsatz, the carrying capacity and the life do not meet the practical requirements.

The storage of bridge superstructures is too time-consuming and the elimination of the static Krag- and Durchlaufwirkungen for the condition of use can be achieved only with increased technological effort.

A change in the roadway slope is not possible within the bridge openings, whereby the adaptation of the road to the road connection is difficult.

Object of the invention

The aim of the invention is to provide a quick mounting bridge, with the small, medium and großo support width ranges in any gradations can be bridged from a fixed assortment of prefabricated individual segments. The connection of the individual segments should be made so that the assembly and disassembly can be performed in a quick and technically straightforward way v / ground. Furthermore, the gradient should be changeable within the bridge opening so that a smooth adaptation of the building to the local conditions is achieved.

Explanation of the essence of the invention

The task is to increase the range of application over the known solutions by combining possible oinos assortment of bridge segments and their connection to a superstructure, in which the gaps in the required span areas are closed. In this case, the construction times, in particular the storage and removal of the restraints compared to comparable solutions to reduce by special design measures. According to the invention, this object is achieved in that the bridge parts are optionally formed of normal segments, short segments, Mittenaufiagersegmentcn, Endauflagersegmenten and clamping segments with pressure bolts and tensioning cables according to local conditions, the Endauflagersegmente by half Auflagerverschieblichkeit longer than the normal segments and short segments to one third of Have length of the normal segments. The segments are structurally designed differently according to the geometric and functional requirements. The universal adaptation is achieved by combining the elements according to local conditions.

The normal segment is the preferred Segmont. His Längo is through the transport · and Assembly technology determined. The short segment is used exclusively for fine adjustment Within the bridge opening and therefore has only the fraction,

preferably 1/3 of the length of the normal segment

The center and end support segments have sufficiently long support areas that allow olno length loading capacity

and in combination with the arrangement of normal and short-sighted gulls, a complete grading of the spans is possible.

For the large spans range oin Spannsegmont is associated with pressure bar and tensioning cable. The tensioning silo will be on

the Endauflager- and / or Mittenauflagersegmonten releasably connected to the Üborbau and by Sprolzung dos

Druckfiegols excited. At the end support segments, ramp parts are fitted to the end support cage for adjustment between the bridge and the road

articulated connectable, which can be paired in pairs for the small spans area to an independent overburden gokoppolt.

The Steckbolzenvorblndungen located on the lower flange protrude for the purpose of better static effect up to the Bottom chord plane. The rollists are therefore arranged laterally offset. The mounting rollers remain to shorten the construction tent in the use of the bridge on ΟΊ and form in Combination with an additional bearing block the bridge lag. Immediately below the upper flange (= road) are arranged head bolts, which absorb the tensile forces Construction conditions cause. At the same time they are by loosening the bolts located above the supports for removing

static Durchlauf- and Kragwirkungen suitable. In addition, the length of the bolts for interposing is variously thicker

Dimension plungers that allow a gradient compensation. Ausführungsbelsplel The invention will be explained in more detail below on a AusführungsDoisplel. Fig. 1: selected examples of variant options Fig. 2: butt joint of two segments including roll station and log point 3: the section A-A. With the variant possibilities of the superstructure segments shown in excerpts in FIG. 1, the overhang length becomes

each to be bridged obstacle, by optionally normal segment o 1, short segments 2,

Mittenauflagersegmente 3, Endauflagersegmente 4 and, if necessary, clamping segments 5 with tensioning cable β and 7 ramp parts

to be ordered. The fine grading is at the support areas with the center support segments 3 and

End support segments 4 made. In addition, construction and dimension tolerances are compensated here. The ramp parts 7

serve for height compensation. They can also form an independent superstructure.

With the pressure bar 8 of the clamping segment 5, the tensioning cables 6 by spreading, preferably with hydraulic actuators,

curious; excited.

The mounting rollers 9 shown in Figure 2 are located laterally from the socket pin 10 and are in State of use of the bridge together with the bearing block 11 in function. The head bolts 12 are claimed in construction on train. The head bolts 12 located above the supports are in front Takeover of the service load to be de-energized. The length of the bolt is determined by the inside and outside of the Column area in different thickness bolted pressure pieces 13 determines.

Claims (5)

1. Variable length and dismountable quick assembly bridge for the small, medium and large span area, consisting, depending on local conditions, of Norrnalsegmenten (1), short segments (2), Mitaufauflagersegmenten (3), Endauflagersegmenten (4) and clamping segments (5) with pressure bolt (8) and tensioning cable (6), characterized in that the Endauflagersegmente (4) by half the Auflagerverschieblichkeit longer than the normal segments (1) and the short segments (2) to one third of the length of the normal segments (1). 2. Schnallmontagebrücke after item!, Characterized in that the socket pin connections (10) protrude below the lower flange level and that the roll bars are arranged laterally offset from these. 3. Quick-mounting bridge according to item 1 and 2, characterized in that a's bridge bearing mounting rollers (9) with additional bearing blocks (11) are jointly wound in a storage point. Λ Schnellmontaoebrücke according to items 1 to 3, characterized in that the arranged near the top flange rvopfbolzen (12) are screwed without tension after assembly and ensure the elimination of static Durchlauf · and Kragwirkungen. 5. Quick-mounting bridge according to item 1 to 4, characterized in that associated with the upper flange joints different thickness plungers (13) for gradient change. 6. rapid assembly bridge according to item 1 to 5, gekonnzeichnet characterized in that at the Endauflagersegmenten (4) ramp parts (7) can be hingedly connected.