DARE-FLYER-rev5.pdf
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The Main Concep t of the Proj ect www. ideas-dare.com Conventio nal seis mic design for soil – foundation–structure interact ion is still based on the “prudent” conservative approach inherited from static geotechnica l and structura l engineering: Exceedance of a number of thresholds that lead to the creation of failure mechanisms in the supporting soil or at the footing –soil interface must be avoided. This is accomplished by the use of “overstrength ” facto rs plus (explicit and implicit) factors of safety. However, a growing bod y of evidence suggests that soil–foundation inelastic and nonlinear response under seismic excitation is unavoidable, and at times even desirable. Our research helps break away with the very philo sophy of the conventional approach for seis mic loading and contributes in a decisive way towards a soil–foundation–structure design that can survive seismically while opera ting at the verge of failure. George Gazetas Project Highlights Conventional Design “DARE” Design “DARE” Application to Deep Foundations Cali bration of nonlinear spring-dashpo t elements Μ Rocking Frames 1-g experi ments of a Rehabilitated Building Centri fuge experime nts of a Concret e Bridge P ier θ . . . . Μ Right footing Left 80 60 40 20 0 0 0.1 0.2 Friday, 25 October [1:30 – 7:00 pm]: Introduction Research Tools: Experimental , Numerical Seismic Loading Beyond Design Levels: Uplifting and Slid ing of Rigid Bodies The Concept: “Inviting “ Uplifting and Failure The UC Davis Experime ntal and Theoretical Related Research “Rocking-Isolation” of Frames Venue: “Excelixi Training and Conference Center A mphithe ater”, El. Venizelou 154 , Kastri [map] “DARE” Team : G. Gazetas, I. A nastasopoulos, N . G erolymos, R. Kourkoulis, F. G elagoti , E. Garini, V. Drosos Saturday, 26 October [9:30 – 2:00 pm]: Rocking Isolation for Pil ed Founda tions Macroelements Foundations to undergo Tectonic Fault Dislocation Practical Conclusions of “DARE” FINAL WORKSHOP : Athens, 25-26 October 2013 DARE Soil –Foundation –Structure Systems Beyond Conventional Seismic “Failure” Thresholds : Application to New and Ex isting Structur es and Monuments Invited Speakers: B. Kutter (USA) , A. Pecker (FRANCE) , R. Paolucci (ITALY) K R K R stat θ M. Loli, G. Tasiopoulou, S. Giannakos, Th. Zafeirakos, A. Tsatsis E. Vintzilaiou, N. Makris, E. Sapountzakis, I. Psycharis
Transcript of DARE-FLYER-rev5.pdf
7/27/2019 DARE-FLYER-rev5.pdf
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The Main Concept of the Project
www. ideas-dare.com
Conventional seismic design for soil–
foundation–structure interaction is still
based on the “prudent” conservative
approach inherited from static
geotechnical and structural engineering:
Exceedance of a number of thresholds that
lead to the creation of failure mechanisms
in the supporting soil or at the footing–soil
interface must be avoided.
This is accomplished by the use of
“overstrength” factors plus (explicit and
implicit) factors of safety.
However, a growing body of evidence
suggests that soil–foundation inelastic and
nonlinear response under seismic
excitation is unavoidable, and at times
even desirable. Our research helps break
away with the very philosophy of the
conventional approach for seismic loading
and contributes in a decisive way towards asoil–foundation–structure design that can
survive seismically while operating at the
verge of failure.George Gazetas
P r o j e c t H i g h l i g h t s
Conventional Design “DARE” Design
“DARE” Application to Deep Foundations
Cali bration of nonlinear spring-dashpot
elements
Μ
Rocking Frames
1-g experi ments of a
Rehabilitated Building
Centri fuge experiments of a
Concret e Bridge Pier
θ
. . . .
Μ
Right footing
Left
80
60
40
20
00 0.1 0.2
Friday, 25 October [1:30 – 7:00 pm]: Introduction Research Tools: Experimental, Numerical Seismic Loading
Beyond Design Levels: Uplifting and Sliding of Rigid Bodies The Concept: “Inviting “ Uplifting and Failure
The UC Davis Experimental and Theoretical Related Research “Rocking-Isolation” of Frames
Venue: “Excelixi Training and Conference Center Amphitheater”, El. Venizelou 154, Kastri [map]
“DARE” Team : G. Gazetas, I. Anastasopoulos, N. Gerolymos, R. Kourkoulis, F. Gelagoti , E. Garini, V. Drosos
Saturday, 26 October [9:30 – 2:00 pm]: Rocking Isolation for Piled Foundations Macroelements Foundations to
undergo Tectonic Fault Dislocation Practical Conclusions of “DARE”
F I N A L W O RK S HO P : A t h e n s , 2 5 - 2 6 O c t o b e r 2 0 1 3
DARESoil –Foundation –Structure Systems Beyond
Conventional Seismic “Failure” Thresholds :
Application to New and Existing Structures and Monuments
Invited Speakers: B. Kutter (USA) , A. Pecker (FRANCE) , R. Paolucci (ITALY)
KR KR
stat
θ
M. Loli, G. Tasiopoulou, S. Giannakos, Th. Zafeirakos, A. Tsatsis
E. Vintzilaiou, N. Makris, E. Sapountzakis, I. Psycharis
