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Bridges with small to medium spans are often built as reinforced concrete or prestressed concrete structures. Elaborate formwork and scaffolding structures are required to transfer the fresh concrete loads. Rolled …
P 226: Formwork girder made of rolled sections without support stiffeners Bridges with small to medium spans are often built as reinforced concrete or prestressed concrete structures. Elaborate formwork and scaffolding structures are required to transfer the fresh concrete loads. Rolled section beams are used as standard as the main load-bearing element. The current state of the art inevitably leads to the installation of support stiffeners in the rolled beams in accordance with the applicable regulations. For the steel girders, which are only economical in multiple use, different support points are required for each bridge structure to be formed.
The support stiffener construction must then be revised accordingly. This is associated with high production costs. There is therefore a great need for formwork girders without support stiffeners in shoring construction. This also applies to general steel construction, which must avoid the labour-intensive support stiffeners of rolled section beams. In the research project, a design method for rolled section beams without support stiffeners was developed on an experimental and theoretical basis. The load-bearing function of the traditional support stiffeners is taken over by the existing frame stiffness of the rolled section beams. For the special application as a scaffolding girder, the stiffening of the top chords is taken into account by the overlying timber formwork. The design method is prepared for practical application in the form of comprehensive load-bearing capacity tables. The handling of the tables is explained using an example. STUDIENGESELLSCHAFT STAHLANWENDUNG e.V.
Machine-translated title and description. The document itself is in German.
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Payment by card (Stripe) or invoice (DE, AT, CH). Download link by email: automatically after ordering by card, after order approval for invoice (valid for 30 days). Terms