Acta Mechanica Solida Sinica

, Volume 19, Issue 3, pp 248–254 | Cite as

A simplified calculating method of nonlinear frequency of cable net under mean wind load

Article

Abstract

The cable net supported glass curtain wallas the most advanced technique in dot point supported glass curtain wall, is widely used in China. Because of its large deflection and high nonlinearity under wind load, the dynamic performance of the cable net is greatly different from that of the conventional linear structures. The continuous membrane theory is used to construct the nonlinear vibration differential equation of the cable net, and the harmonic balance method is used to solve the analytic formula of the nonlinear frequency. In order to verify the accuracy of the above analytic formula, the results of the formula and the nonlinear FEM time-history method are compared and found to be in good agreement. Furthermore, the nonlinear vibration differential equation and the nonlinear frequency obtained in this paper are the basis for the wind-induced response analysis of a cable net under fluctuating wind load.

Key words

dot point supported glass curtain wall cable structure geometrically nonlinear nonlinear vibration frequency 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2006

Authors and Affiliations

  1. 1.Shen Zhen Graduate SchoolHarin Institute of TechnologyShen zhenChina
  2. 2.Space Structure Research CenterHarin Institute of TechnologyHarbinChina

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