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2012 EERI SDC - Team UTCN
Transcript of 2012 EERI SDC - Team UTCN
Cutting balsa sheets into strips
Adhesive CA - fluid and superfluid
"Making the simple complicated is commonplace, making the complicated simple, that's creativity." (Charles Mingus)
Cross sectional symmetry octagonal shape
Resistance and stiffness
Reduction of forces and deflections;
Performance based design at low cost;
Saving in cost of new construction and retrofit of existing buildings.
Predictions based on computation
Seismic response of the structure
with 5% damping using SAP2000
Earthquakes do not kill people, poorly designed structures do
Our damping devices
Testing friction dampers
Testing balsa structures
Test without seismic protection
appropriate structural conformation - control test
use of added mass and friction dampers
friction damper on all sides
Final solution - improved friction dampers and bracings
Provide supplemental damping and stiffness for added stability under seismic loads;
Not active during service loads - no possibility of failure due to fatigue before an earthquake;
Reliable and repeatable performance at low cost.
moment of inertia
Behind every succsessful business stands a great idea.
Mitigation of seismic effects through energy dissipation
10-20% reduction of response
Based upon observations and measured values on previous structures:
acceleration values are accurate
displacement values are approximate
density, elasticity modulus determined
modal time history analysis
changing the different parameters till we
meet the effective test results
Seismic Design Competition
10-13th April, Memphis, TN
Faculty of Civil Engineering
the proposed model withstands severe earthquakes
Nice sunset view from upper levels
Maximum rentable area for high revenue