Structural design and analysis of large-scale spiral ramp in Sanxingdui Museum of ancient Shu cultural relics
The spiral ramp in the atrium of Sanxingdui Museum of ancient Shu cultural relics adopts a steel box girder structure,with a maximum radius of 28.7m and a horizontal projection length of 118.5m.The selection of large-scale spiral ramp structural systems and the comparison process of boundary conditions were introduced.A multi-scale overall model was established using the general calculation software MIDAS Gen to consider the interaction between spiral ramp and main structure.Through static analysis and response spectrum analysis,the bearing capacity and deformation of spiral ramp under different loads were investigated.And the finite element software ANSYS was used to establish an analysis model for progressive collapse analysis.The analysis results show that the spiral ramp adopts the steel box girder structure with good overall stiffness.The stress and deformation of the spiral ramp under static load and earthquake meet the requirements of the code,and has good ability to progressive collapse.
Sanxingdui Museum of ancient Shu cultural relicslarge-scale spiral rampsteel box girderstructural selectionbearing designmulti-scale modelingprogressive collapse
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