Analysis on Dynamic Properties of Monolayer Cable Net for Point -supported Glass Facade
WU Li - li, WANG Yuan - qing, SHI Yong - jiu
DOI:10.11835/j.issn.1674-4764.2006.03.011
Received December 20, 2005,Revised December 20, 2005, Accepted , Available online July 01, 2015
Volume ,2006,Pages 39-
- Abstract
Monolayer cable net system for point - supported glass facade is a kind of flexible tension structures with relatively strong nonlinearity. Its stiffness greatly depends on the pretension in cables. Yet there are few literatures at present reported on its dynamic properties. The characteristic of modal analysis for flexible pre - stressed structures such as cable structures is expatiated herein. Corresponding program was developed to analyze two important factors such as pretension and geometric nonlinearity for dynamic behaviors of cable net herein. It is demonstrated that large errors are brought about by omitting nonlinearity. There exists apparent nonlinear relationship between vibration frequency and pretension in cables. The influence of pretension and geometric nonlinearity on the dynamic properties of cable net is in coordination with each other.