At present,in the theoretical design of crane in China,the method of avoiding wind-borne resonance is adopted for downwind load in non-working state,and measures are taken from the aspects of structural rigidity and structural form,so that the structural self-vibration frequency of the crane avoids the frequency of whirlpool falling off and prevents resonance.Aiming at the crane with more sensitive wind load,this paper simulates the typical case of inverted tower cranes in the construction of ordinary tower cranes at the construction site through self-made simple wind tunnel experiments,and analyzes the coupling resonance phenomenon of tower cranes caused by typhoons.The structural wind engineering of the tower crane is put forward to correctly deal with the characteristics of typhoon hazards,which provides a reference for the design of the tower crane and its attachment device and the design of the enhanced windproof platform.
维普
万方数据