Wind bracing
The wind bracing ( English wind bracing ) denotes bracing of trusses, the horizontally occurring wind forces ( wind pressure and suction forces record) is transmitted to bearing points and are derived there.
Wind bracing can be designed as a horizontal, inclined or vertical bracing of tension and compression bars or only as tension elements (e.g. crossing steel cables or tension bars made of round steel with turnbuckles - see also: Tension rod system ) to absorb the horizontal forces caused by the wind on the structure be. The combination as tension and compression bars is particularly necessary with changing wind loads. Horizontal wind associations can be found e.g. B. on the carriageway level of railway bridges ( bridge girders ) or hall ceilings. Vertical wind bracing is usually used on walls or upright girders, inclined wind bracing, for example, on the sides of a kink-resistant and flexurally rigid triangular girder (see also girders as a load-bearing component ).
Wind bracings usually form single, stable triangles and can be combined with other bracing bracings. The best-known form are crossing diagonals .
Wind bracing can be made of any suitable, dimensionally stable material (e.g. wood , steel , aluminum, etc.)
XI wind brace on the lowest floor at the Pearl River Tower in Guangzhou , People's Republic of China
External wind bracing as a static and design element in a hotel in Barcelona (casino)
See also
Web links
literature
- Heinrich Müller-Breslau , On the theory of the wind bracing of iron bridges , Berlin 1903, in: Session reports of the Royal Prussian Academy of Sciences. Phys.-math. Class
- Helmut Pfannmüller , on the training and calculation of iron compression belt wind bracing , dissertation RWTH Aachen, Noske, Borna-Leipzig 1931