Abstract：
As for the current structural design of open-cut subway stations in China, the simplified planar model is generally used to carry out structural analyses in accordance with the relevant specification requirements. Nevertheless, subway stations are spatial structures with changes in the longitudinal direction, and using the simplified plane design according to current specifications is bound to cause calculation deviations. This paper proposes that the reinforcement calculation shall be guided by the calculated equivalent bending moment of the spatial structure based on a comparative analysis of numerical simulation calculations by spatial models with different spans and corresponding planar models. If a simplified planar model is used for structural design, the results shall be discounted; especially for the perpendicular joints, the range of peak clipping shall be increased to ensure the cost effectiveness of the subway stations.
2015, Vol. 52 