| 摘要 |
PROBLEM TO BE SOLVED: To determine an appropriate reinforcement amount while reducing count of dynamic analysis in design for earthquake-proof of an underground structure.SOLUTION: A structure analysis system performing structure analysis in performing design for earthquake-proof of an underground structure comprises: dynamic analysis means performing FEM dynamic analysis in an initial condition using a first model unifying and modelling the underground structure and ground; simple analysis means analyzing simply; and analysis control means which makes the simple analysis means analyze one or a plurality of reinforcement points determined by the dynamic analysis means that they need reinforcement every reinforcement point of a predetermined unit using a model with a predetermined amount of members reinforced, determines a reinforcement amount for the FEM dynamic analysis of the reinforcement point based on the increase and decrease of the energy of the reinforcement point before and after the simple analysis, and makes the dynamic analysis means analyze using the first model reflecting all reinforcement amounts when the reinforcement amount of all reinforcement points is determined. |
