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

fic_fico@yahoo.es

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

Before , Pisco Earthquake (Omar Vilca) After , Pisco Earthquake (Omar Vilca)

Figure 1.2:

Figure 1.3: Serious damage, very difficult to restore outside and inside,

Pisco Earthquake (Omar Vilca)

Figure 1.4:

The weak first story is serious

damaged, Pisco Earthquake

(Omar Vilca)

Figure 1.5: Effects of column failures at RC

structure, 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 1.8: Damaged Tapial

house, Pisco Earthquake

(Omar Vilca)

Figure 1.9: National University

of Engineering and San Luis

Gonzaga University work, Pisco

Earthquake (Omar Vilca)

Figure 1.10: Liquefaction -

induced bearing capacity failure,

Pisco Earthquake (Omar Vilca)

Figure 1.11: Liquefaction -

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 1.14: Structural Performance

in different hospitals.

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)

Figure 1.16: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)

Figure 1.17: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)

Figure 1.18: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)

Figure 1.19: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)

Figure 1.20: National Project (INDECI, INGEMMET, CESEL INGENIEROS, CONIDA)

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

Figure 2.3 INTERNATIONAL AIRPORT

(Dr. Genner Villarreal Castro)

Figure 2.4 Retrofitted

by hydraulic devices

(Dr. Genner Villareal

Castro)

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.