Seismic devices in_peru

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Seismic devices in_peru

  1. 1. L IA DE AD R IE NZ A GA " GO UL T N L VI CI FA C " SA N GE IN DA D L IS UN I V E R S I I ONA U C NA APPLICATIONS ON SEISMIC DEVICES IN PERU Omar Vilca Civil Engineer fic_fico@yahoo.es San Luis Gonzaga University, Peru 1. REPORT ON PISCO EARTHQUAKE 2. APPLICATIONS ON ENERGY DISSIPATION IN PERU 3. APPLICATIONS ON SEISMIC ISOLATION IN PERU 4. CONCLUDING REMARKS
  2. 2. 1. REPORT ON PISCO EARTHQUAKE Figure 1.1: Some buildings look well form outside , Pisco Earthquake (Omar Vilca)
  3. 3. Figure 1.2: Before , Pisco Earthquake (Omar Vilca) After , Pisco Earthquake (Omar Vilca)
  4. 4. Figure 1.3: Serious damage, very difficult to restore outside and inside, Pisco Earthquake (Omar Vilca)
  5. 5. Figure 1.4: The weak first story is serious damaged, Pisco Earthquake (Omar Vilca)
  6. 6. Figure 1.5: Effects of column failures at RC structure, Pisco Earthquake (Omar Vilca)
  7. 7. Figure 1.6: Serious damage, failure at many RC columns in a secondary school, Pisco Earthquake (Omar Vilca)
  8. 8. Figure 1.7: Serious damage, failure at many RC columns in a primary school, Pisco Earthquake (Omar Vilca)
  9. 9. Figure 1.8: Damaged Tapial house, Pisco Earthquake (Omar Vilca)
  10. 10. Figure 1.9: National University of Engineering and San Luis Gonzaga University work, Pisco Earthquake (Omar Vilca)
  11. 11. Figure 1.10: Liquefaction induced bearing capacity failure, Pisco Earthquake (Omar Vilca)
  12. 12. Figure 1.11: Liquefaction Pisco Earthquake (Omar Vilca)
  13. 13. Figure 1.12: Significant damaged to RC structures when they develop large ductility. Pisco Earthquake (Omar Vilca)
  14. 14. Figure 1.13: Non – Engineered construction in too many mansory buildings, Pisco Earthquake (Omar Vilca)
  15. 15. Figure 1.14: Structural Performance in different hospitals. Pisco Earthquake (Omar Vilca)
  16. 16. Before, Pisco Earthquake (Omar Vilca) After, Pisco Earthquake (Omar Vilca) Figure 1.15: If collapse can be prevented, what level of damage is acceptable?
  17. 17. Figure 1.16: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)
  18. 18. Figure 1.17: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)
  19. 19. Figure 1.18: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)
  20. 20. Figure 1.19: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)
  21. 21. Figure 1.20: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)
  22. 22. 2. Applications on Energy Dissipation in Peru Figure 2.1: Hysteretic behaviour of different energy dissipators (Dr. Luigi Di Sarno)
  23. 23. Figure 2.2: Retrofitting in several buildings Retrofitted by metals yielding existing 18-story building. (Disipa - Grupo PRISMA) Retrofitted by elastic viscosity existing 20-story building. (Disipa - Grupo PRISMA) Retrofitted by hydraulic devices existing 16-story building. (SEINTEC) Retrofitted by fluid viscosity existing 15-story building. (Disipa - Grupo PRISMA) Retrofitted by metals yielding existing 31-story building. (Disipa - Grupo PRISMA)
  24. 24. Figure 2.3 INTERNATIONAL AIRPORT (Dr. Genner Villarreal Castro)
  25. 25. Figure 2.4 Retrofitted by hydraulic devices (Dr. Genner Villareal Castro)
  26. 26. 3. Applications on seismic isolation in Peru Figure 3.1: Hysteretic behaviour of different isolation bearings (Dr. Luigi Di Sarno)
  27. 27. Figure 3.2: Seismic isolation in few buildings Vibration Control by High – damping rubber and sliding bearing 03-story building. (SIRVE S.A - above.) Vibration Control by High – damping rubber and sliding bearing 07-story building. (Disipa - Grupo PRISMA - left)
  28. 28. 4. Concluding Remarks 4.1 Pisco earthquake produced a lot of of damage in non – engineered buildings.However, many buildings had good structural behaviour. 4.2 Seismic dissipation and isolation are recently applied in Peruvian buildings to add damping. As a result, they will improve their seismic response. 4.3 The Peruvian Seismic Code does not considere anything about Energy Isolating and Dissipating Devices.

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