| Title |
Seismic Design of Vertical Shaft using Response Displacement Method |
| Keywords |
vertical shaft;seismic design;response displacement method;seismic base;response of surrounding soil;shape effect;수직구;내진설계;응답변위법;기반면;표층지반응답;형상효과 |
| Abstract |
For seismic design of a vertical shaft, three-dimensional Finite Element (FE) analyses were performed to evaluate the accurate response of a vertical shaft and to apply a Response Displacement Method (RDM). Special attention is given to the evaluation of seismic base and response displacement of surrounding soil, estimation of load and loading method. Based on the result, it was found that shear wave velocity of seismic base greater than 1500㎧ was appropriate for the seismic design. It was also found that double cosine method which evaluates a response displacement of surrounding soil was most appropriate to consider the characteristic of multi-layered soil. Finally, shape effect of the structure was considered to clarify the dynamic behavior of vertical shaft and it would be more economical vertical shaft design when a vertical shaft was analyzed by using RDM. |