THE NONLINEAR DYNAMIC STABILITY OF ARCH STRUCTURES UNDER HARMONIC LOADING ACTION
The long-span arch structures have been widely used in civil engineering.As arch structures work mainly under axial pressure,the geometric nonlinearity has a great effect,which usually makes the supporting capacity of arch structures depended on its stability.Analyses have shown that arch structures have obvious response to dynamic loading.Single span arch structures,whose rise-span ratio could be 1/3,1/5 or 1/7,have been chosen to analysis the characteristics of the linear resonance response,during which the resonance region has been got.Then keep rising the extent of the dynamic loading,make the structures work under the main resonance frequencies,which are chose from the resonance region.By this means,the analysis of the nonlinear dynamic structural stability can get good results,which proves the method is effective and practical.
Long-span nonlinear dynamic stability resonance
Dongping Wu Yunli Chen
Wuhan University of Science and Technology 430060
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
928-933
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）