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Earthquake Safe buildings
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Published on Nov 18, 2015
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1.
Earthquake Safe buildings
by Heline, Rachel, and Marion
Photo by
San José Library
2.
what buildings should have
foundations placed on level, firm ground
have a normal shaped foundation
no columns
use fiberglass and concrete
they are the most resistant
Photo by
Stuck in Customs
3.
Good Foundations
build on firm ground; structures fail on soft ground
another solution called base isolation
involves floating a building above foundations
on a system of bearings, springs, or padded cylinders
Ductility is a big part
Photo by
C J Wood
4.
Ductility
refers to the ability to undergo large deformations
brick and concrete have low ductility
buildings made of structural steel offer highest ductility
structural steel components that come in a variety of shapes
shapes like beams, angles and plates
Photo by
ykanazawa1999
5.
Lead Rubber Bearings
engineers often choose them
lead core makes bearing strong and stiff
rubber and steel bands make the bearing flexible
bearings attach to the building and foundations
they attach via steel plates
Photo by
TerryJohnston
6.
what causes buildings to fail
most buildings are designed to support their weight
building design typically focuses on vertical loading
usually too much lateral load that causes the most damage
Photo by
callocx
7.
what to do indoors
remain calm
if indoors-stay there
stay away from windows and unbolted furniture
go under a desk, table, or along interior wall
protect head, neck, and face
Photo by
PhillipC
8.
what to do outdoors
move to an open area
stay away from things like trees and buildings
drop to the ground
cover your head and neck
Photo by
angela7dreams
9.
Making Utilities Safer
flexible joints and pipes can be installed
can keep gas and water lines from breaking
automatic shut-off valves also shut off water and gas
Photo by
archangel 12
10.
what is in seismic-safe buildings
shear walls
tension ties
cross braces
dampers
base isolators and flexible pipes
Photo by
Michael J. Linden
11.
Shear Walls
transfers some of a quake's energy
transfers the energy from floors and roofs
transfers the energy to building's foundation
Photo by
Zach Dischner
12.
Tension Ties
firmly "tie" floors and ceilings of a building
tie them to the walls
absorb and scatter earthquake energy
reduce damage
Photo by
overthinkingme
13.
Cross Braces
placed between stories
used to stiffen a building's frame
also used to absorb energy
Photo by
Telstar Logistics
14.
Dampers
work like the shock absorbers in a car
used to absorb some seismic energy waves
Photo by
jcgoble3
15.
Store Interior Design 1
shelves double bolted to the walls
have this so they don't collapse
tables attached/bolted to the floor
items on tables will have non-sliding mats underneath
hangers bolted/stuck to the walls
Photo by
Mr.Tea
16.
Store Interior Design 2
windows made of fiberglass
mirrors firmly attached to the wall
attached so they won't fall
cash register attached to the table
attached using non-stick mats
Photo by
Miikka Skaffari
17.
Store Interior Design 3
shoes kept in cabinets bolted to the wall
store bolted to foundation
bolted down water heater
child proof latches
velcro installed in corners in cabinents
Photo by
somegeekintn
Marion Boyd
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