Newton’s laws and the technology required to build buildings capable of withstanding earthquakes Flashcards
What is an earthquake?
An earthquake is a mechanism where there is shaking in the ground that could be from volcanic activity or the earth’s crust.
What is Newtons law?
Newton’s law:
Newton’s law of motion are three physical laws that describe an object and the forces acting on it, and the motion of the object in response to these forces.
Define newtons 1st and 2nd law of motion
1st law
An object at rest will remain at rest, and an object will remain in motion, unless it is acted on by an external force.
Newton’s Second Law:
The force acting on an object is equal to the mass of that object times its acceleratio
What is anti seismic technology ?
Anti seismic technology:
These systems involve supporting the lower levels or substructure of a building from the main upper levels (superstructure). One type of base -isolation system involves floating a building above its foundation on lead core rubber bearings
What are some benefits in earthquake resistant technologies?
Benefits:
* Can save lives
* Limits the pressure placed on rescue and healthcare works/systems after a quake
* Can protect cultural artefacts
* Can limit the cost of rebuilding after an earthquake (economic benefits)
* Funds injected into research for continual improvement and development can advance science, other technologies (spin-offs) and provide more jobs
* Technology can also decrease sway of buildings during high winds
What are some concerns of earthquake resistant technologies?
Concerns:
* Technology often not implemented into older existing buildings
* Can be expensive and not used in third world
* Not fail-safe: can prevent some damage but not all damage