Catégories : Tous - forces - earthquakes - building - prevention

par Shahzad Maarij Il y a 1 année

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Physics of Earthquakes

The document encompasses the study and mitigation of earthquakes through architectural and engineering techniques. It delves into the physics behind seismic activity, highlighting the structure of the Earth, specifically the layers such as the continental crust, lithosphere, and asthenosphere.

Physics of Earthquakes

Causes

Physics of Earthquakes

Architecture/Prevention

Building Techniques
Reinforce the Building’s Structure

Moment-resisting frames

Diaphragms

Shear walls

Shield Buildings from Vibrations

Concrete rings

Counter Forces with Damping

Tuned dampers

Pendulum power

Vibrational Control Devices

Flexible Foundation

Base isolation

Earthquakes

Seismography
Energy Release and Momentum of Seismic Waves
Moment Movement Scale

Log scale (x10 shaking, x32 energy released)

Forces Involved (Planetary Scale Thermoconvection system)
“slab pull” gravity forces

More gravitational pull on denser/cooler mantle

“ridge push” gravity forces

Brittle Lithosphere cracking

High mass on a slope at a spreading ridge

Techtronic plates movement
Divergent/Convergent/Transform

Stress buildup from movement

Layers of the earth
Asthenosphere
Continental/Ocean crust
Lithosphere