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Analytical Study of Horizontally Curved Hollow Tubular Flange Girders

Jun Dong

出版	Lehigh University, 2008
ISBN	11090413309781109041330
URL	http://books.google.com.hk/books?id=4fwotAEACAAJ&hl=&source=gbs_api

註釋

Then, FE models for curved hollow tubular flange girders (CHTFGs) are introduced. The models consider material inelasticity, second order effects, initial geometric imperfection, and residual stresses. A parametric study is performed on both individual girders and three-girder systems braced by cross frames to study the effects of web stiffeners, tube diaphragms, geometric imperfection, and residual stresses on the load capacity of CHTFGs. The results indicate that using a suitable arrangement of transverse web stiffeners and tube diaphragms effectively eliminates the influence of cross section distortion on the load capacity. The effects of initial geometric imperfection and residual stresses on the load capacity of CHTFGs are shown to be small.