Combined equivalent & multi-scale simulation method for 3-D seismic analysis of large-scale shield tunnel
作者： Weiwei Zhang , Xianlong Jin , Zhihao Yang
关键词: Seismic analysis 、 Bending 、 Seismic loading 、 Modal 、 Scale (ratio) 、 Magnitude (mathematics) 、 Structural engineering 、 Engineering 、 Shield 、 Orthotropic material
摘要: Purpose – The great magnitude differences between the integral tunnel and its structure details make it impossible to numerically model analyze global local seismic behavior of large-scale shield tunnels using a unified spatial scale, even with help supercomputers. paper aims present combined equivalent & multi-scale simulation method, by which tunnel's major mechanical properties under loads can be represented model, responses interested studied efficiently coupled model. Design/methodology/approach nominal orthotropic material constants are inversely determined fitting modal characteristics corresponding segmental lining critical sections selected comprehensive analyzing compression/extension bending in shaking multi...
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