Research Of Aerodynamic Force On The Tall Building

The results of wind forces acting on high buildings are the fatigue failure by vibrations, local failure under pressure and toppling failure etc. Wind forces are one of design loads on towering structures, high buildings and long-span bridges, sometimes even be decisive function.Wind pressure on the construction surface. Shearing force, bending moment and twisting moment come into being when wind acts on structures. There are extensive literatures on the subject to the study of wind pressure on the building and vibrations caused by winds currently. While files on the aerodynamic research are not systemic in the country. This text studied the mutually interference influences to the aerodynamic force of irregular shape base on analysis using wind force and wind pressure data of super high buildings model obtained by wind tunnel tests, and provided reference to designer and expurgator on building code.This article gives an account of character of wind, wind acted on building, calculation formulas, methods of force measure on building and high-frequency-force-balance technologies etc firstly. Then the reliability of the dynamic force musurement method is validated through integral of wind pressure data on the surfaces. Finally, the average value, root-mean-square value, maximum, minimum, spike factor of wind force, wind force moment are analyzed to studied the mutually interference influences to the base force of high buildings and group of buildings. And introduce the process that how to solve dynamical response through measure data in brief.