ARC 121 Midterm: Svetz-Notes 1
6 Aug 2015
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Document Summary
Resonance: loads that have progressively increasing dynamic loads dangerous a force is in resonance with a structure when a force is rhythmically applied to a structure with the same period speed of wind grows with height // wind pressures increase as the square of the wind speed // therefore, wind effects on a building are compounded as its height increases. wind pressures act horizontally in tall buildings, up to 10% goes of structural weight goes into wind bracing // in a 20 30 storey building, the gravity structure is sufficient to resist the wind. wind measurements are conducted daily in all parts of the world // maps are plotted better to design buildings that are undamaged by a wind with 50 years chance of occurrence & allow minor damage with a 100 year wind design wind wind forces vary depending on wind speed, building height & building shape.
