What is the plate beam?
used mainly to support railways, the plate beam is recognizable using two or more board beams supporting the bridge deck. The beam board has a similar look to the more traditional I-Section. The difference between the two comes from the production process. While the traditional beam part is made of a single rolled piece of steel, the flange and the beam network rolling separately and welded together to form a section.
In terms of terminology, the beam network is a vertical part that connects two flanges or horizontal beam cuts. In some configurations, the load -beam bridge will contain rays from sections where the site is connected diagonally between the enemy parties of the flanges. Traditional bridges for supporting plates cover a short span between two abutments, usually passing on a road or watercourse. These different styles are known type of deck, half and more span. Styles of deck -type bridges and multiple spans have a similar design where board beams are expanded between supportAmi and the bridge deck is attached to the upper part of the beams. The bridge decks can be made of wood, steel or concrete.
On the multi -stage plate bridge is used medium pier steel, stone or concrete. This allows the bridge to spill over wider gaps than a single beam length could safely achieve. Stone and concrete are commonly used only for the construction of low -floor pier; Steel lattice working pier is used for higher apparatus due to lower weight of building material. Designs of support bridges of the type of deck and more span are commonly found by cross racing, where the support rays are pulled from the second with diagonal steel. This prevents the beams from the train under the weight of the train or other vertical load from the bridge.
half a passage plate is used when the lights under the bridge are limited and where the change in the bridge level could prove to be problematic. Using these criteria toThe railway is most commonly found by half the bridge style. The construction of the half -loading bridge of the plate differs from the styles type of deck and more spans in the fact that the bridge deck does not fit on top of the beams, but rather supported on the lower flanges of the beam. The result of this design is that the web and the upper flange of the support rays protrude vertically on both sides of the railway. The use of cross racing as support is not possible for this type of bridge, so the vertical reinforcement sections are often added to avoid strut.