Page - 1229 - in Book of Full Papers - Symposium Hydro Engineering

(a) (b) Fig. 6. Fragility curves considering IM as (a) Sv(T1,5%), and (b) Sd(T1,5%). Both pulse-like and non-pulse-like records. 6. CONCLUSIONS Pine Flat gravity dam was modeled along with its full reservoir as case study. The dam-reservoir coupled system was analyzed under some selected pulse-like and non-pulse-like records, and it was shown that earthquake characteristics other than pulse nature may govern the seismic responses. Also, it was concluded that the pulse nature would lead to more scattered response results. Investigating the seismic EDPs against Tp/T1 showed that as this ratio increases, approximately, lower response values were observed specifically for the damage dissipated energy which is a global measure of the imposed cracking damage. This trend was somewhat observed for the base local damage, but it was not so clear for the neck damage. Finally, the seismic vulnerability of the dam was assessed by building its seismic fragility curves separately under the pulse-like and the non-pulse-like earthquakes. REFERENCES [1] J.D. BRAY, A. RODRIGUEZ-MAREK. Characterization Of Forward- Directivity Ground Motions In The Near-Fault Region. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 24 (2004) 815-828. [2] M. SASANI, V.V. BERTERO. Importance Of Severe Pulse-Type Ground Motions In Performance-Based Engineering: Historical And Critical Review. 0 20 40 60 80 100 0 10 20 30 40 50 Sv(T1,5%), cm/sec pulse-like non-pulse-like 0 20 40 60 80 100 0 10 20 30 40 50 Sv(T1,5%), cm/sec pulse-like non-pulse-like 0 20 40 60 80 100 0 10 20 30 40 50 Sv(T1,5%), cm/sec pulse-like non-pulse-like 0 20 40 60 80 100 0 1 2 3 4 5 Sd(T1,5%), cm pulse-like non-pulse-like 0 20 40 60 80 100 0 1 2 3 4 5 Sd(T1,5%), cm pulse-like non-pulse-like 0 20 40 60 80 100 0 1 2 3 4 5 Sd(T1,5%), cm pulse-like non-pulse-like 1229