1. REPORT ON PISCO EARTHQUAKE
2. APPLICATIONS ON ENERGY DISSIPATION IN PERU
3. APPLICATIONS ON SEISMIC ISOLATION IN PERU
4. CONCLUDING REMARKS
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Omar Vilca
APPLICATIONS ON SEISMIC DEVICES IN PERU
Civil Engineer
San Luis Gonzaga University, Peru
Figure 1.1: Some buildings look well form outside , Pisco Earthquake (Omar Vilca)
1. REPORT ON PISCO EARTHQUAKE
Figure 1.3: Serious damage, very difficult to restore outside and inside,
Pisco Earthquake (Omar Vilca)
Figure 1.6: Serious damage, failure at many RC columns in a
secondary school, Pisco Earthquake (Omar Vilca)
Figure 1.7: Serious damage, failure at many RC columns in a
primary school, Pisco Earthquake (Omar Vilca)
Figure 1.9: National University
of Engineering and San Luis
Gonzaga University work, Pisco
Earthquake (Omar Vilca)
Figure 1.12: Significant damaged
to RC structures when they
develop large ductility.
Pisco Earthquake (Omar Vilca)
Figure 1.13: Non – Engineered
construction in too many mansory
buildings, Pisco Earthquake
(Omar Vilca)
Figure 1.15: If collapse can be prevented, what level of damage is acceptable?
Before, Pisco Earthquake (Omar Vilca) After, Pisco Earthquake (Omar Vilca)
2. Applications on Energy Dissipation in Peru
Figure 2.1: Hysteretic behaviour of different energy
dissipators (Dr. Luigi Di Sarno)
Retrofitted by metals yielding
existing 18-story building.
(Disipa - Grupo PRISMA)
Retrofitted by elastic viscosity
existing 20-story building.
(Disipa - Grupo PRISMA)
Retrofitted by fluid viscosity
existing 15-story building.
(Disipa - Grupo PRISMA)
Retrofitted by metals yielding
existing 31-story building.
(Disipa - Grupo PRISMA)
Retrofitted by hydraulic devices
existing 16-story building.
(SEINTEC)
Figure 2.2: Retrofitting in several buildings
3. Applications on seismic isolation in Peru
Figure 3.1: Hysteretic behaviour of different
isolation bearings (Dr. Luigi Di Sarno)
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)
Figure 3.2:
Seismic isolation
in few buildings
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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