- Using seismic isolation and energy dissipation to create earthquake-resilient buildings.
- R.L. Mayes ; A.W.M. Brown ; Dario Pietra
- 2012 New Zealand Society of Earthquake Engineering Conference, Paper 093.
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Estimating earthquake-induced failure probability and downtime of critical facilities
- K. Porter ; K Ramer
- Book Title / Journal: Journal of Business Continuity and Emergency Planning
- Year: 2012 , Volume: Vol. 5 , Series:
- Earthquake engineering
- Description
- Fault trees have long been used to estimate failure
risk in earthquakes. One interesting application
is that one can assess and manage the
probability that two facilities — a primary and
backup — would be simultaneously rendered
inoperative in a single earthquake. Another is
that one can calculate the probabilistic time
required to restore a facility to functionality, and
the probability that, during any given planning
period, the facility would be rendered inoperative
for any specified duration. A large new peerreviewed
library of component damageability and
repair-time data for the first time enables fault
trees to be used to calculate the seismic risk of
operational failure and downtime for a wide variety
of buildings. With the new library, seismic risk
of both the failure probability and probabilistic
downtime can be assessed and managed, considering
the facility’s unique combination of structural
and non-structural components, their seismic
installation conditions, and the other systems on
which the facility relies. An example is offered of
real computer data centres operated by a
California utility. The fault trees were created and
tested in collaboration with utility operators, and
the failure probability and downtime results validated
in several ways.
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- Influence of stiffness variation on the performance of houses in earthquakes.
- Z. Liu ; G. Beattie
- 2012 New Zealand Society of Earthquake Engineering Conference, Paper 113.
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Application of performance based nonlinear seismic design and simulation static pushover analysis for seismic design of RC buildings
- A. Bhatti ; H. Varum
- Book Title / Journal: The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper
- Year: 2012 , Volume: , Series:
- Earthquake engineering
- Description
- Seismic retrofitting of already constructed buildings is one of the most effective methods of decreasing
the risk. However the seismic performance of the structure may not be improved by Strengthening
unless the professional engineer selects an appropriate modifying technique based on seismic
evaluation of the already constructed structures. In this paper nonlinear static pushover analysis has
been performed for the said building. The demand spectrum of ATC 40 procedure for this building
was compared with real site based demand spectra. The simulation has been compared with and
without strengthened structure. The plastic hinges of the building have been plotted for different safety
margins.
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- Understanding cladding damage: A numerical investigation into a Christchurch earthquake case study.
- A. Baird ; A. Palermo ; S. Pampanin
- 2012 New Zealand Society of Earthquake Engineering Conference, Paper 121.
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Displacement-based design of essential facilities
- G. Diaz ; A. Teran-Gilmore ; C. Reyes
- Book Title / Journal: The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper
- Year: 2012 , Volume: , Series:
- Earthquake engineering
- Description
- Although an importance factor of 1.5 may promote adequate performance of essential facilities built in firm soil;
the actual value of this factor corresponding to structures built in soft soil exhibits significant dependence with
respect to the dynamic characteristics of the structural system. Because of this, the current use given to the
importance factor may result in conservative or unsafe design of essential facilities built in soft soils. One way to
improve the seismic design of essential facilities is to formulate displacement-based approaches. Within this
context, a displacement-based methodology should aim at controlling simultaneously the level of structural and
non-structural damage by limiting the plastic rotation and inter-story drift demands in the structural system of the
essential facility.
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- Probabilistic seismic performance assessment of code-compliant multi-story RC buildings engineering structures.
- G. Toniolo ; S.-H. Jeong ; A.M. Mwafy ; A. S. Elnashai
- Engineering Structures, Vol. 34, pp. 527-537, 2012.
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Performance-based design of an essential hospital with supplemental viscous damping in a high seismic zone
- R. Love ; J. Newell ; M. Sinclair ; Y. Chen ; C. Poland
- Book Title / Journal: The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper
- Year: 2012 , Volume: , Series:
- Earthquake engineering
- Description
- Since 1973, California has mandated that “hospitals …which must be completely functional to perform
necessary services … after a disaster, shall be designed and constructed to resist, insofar as practical, the forces
generated by earthquakes…” With advances in performance-based design methodologies, nonlinear response
history analysis, and supplemental damping, engineers can better meet this legislated mandate.
This paper describes the analysis of a 94,000 sq. meter, high-rise urban hospital in California using steel moment
resisting frames with supplemental damping devices to control drift. Full-scale test results of Viscous Wall
Dampers and steel beam-column moment resisting connections are used to validate the Non-Linear Response
History analysis assumptions. The building seismic performance is evaluated using 10 strike-slip ground motion
records.
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- Case study on the impact of horizontal boundary elements design on seismic behavior of steel plate shear walls.
- R. Purba ; M. Bruneau
- ASCE Journal of Structural Engineering. 138 (5), pages 647-657.
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Behavior of self-centering steel plate shear walls and design considerations.
- D. Dowden ; R. Purba ; M. Bruneau
- ASCE Journal of Structural Engineering, 138 (1), pages 11-21.
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Experimental investigation of self-centering steel plate shear walls.
- D. Dowden ; P.J. Clayton ; T. Winkley ; J. Berman ; M. Bruneau ; L.M. Lowes
- ASCE/SEI Structures Congress, Chicago.
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Modeling of seismic wave motion in high-rise buildings
- R.R. Zhang ; R.S. Snieder ; L. Gargab ; A. Seibi
- Book Title / Journal: Probabilistic Engineering Mechanics,
- Year: 2011 , Volume: 26, , Series:
- Earthquake engineering
- Description
- This study examines one-dimensional wave propagation in a multi-story building with seismic excitation.
In particular, the building is modeled as a series of shear beams for columns/walls and lumped masses
for floors. Wave response at one location of the building is then derived to an impulsive motion such as
displacement and acceleration at another location in time and frequency domains, termed here as wave-based or generalized impulse and frequency response function (GIRF and GFRF), which is dependent upon
the building characteristics above the impulse location. Not only does this study illustrate features of GIRF
and GFRF in terms of building properties, it also shows broad-based applications of the modeling. Two
examples are presented with the use of the modeling. One is wave-based characterization of ten-story
Millikan Library in Pasadena, California with the recordings of Yorba Linda earthquake of September 3,
2002. The other is analysis for influence of stochastic floor-to-column mass ratio, story-height and seismic
input in seismic wave responses
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- Seismic design of composite steel deck and concrete-filled diaphragms: A guide for practicing engineers
- W.S. Easterling ; T.A. Sabol ; R. Sabelli
- Book Title / Journal: NIST GCR 11-917-10, National Institute of Standards and Technology - U.S. Department of Commerce
- Year: 2011 , Volume: , Series:
- Earthquake engineering
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- In-plane design loads for seismic assessment and retrofit of walls in unreinforced masonry buildings
- J.M. Ingham ; C.L. Knox ; A.W. Wilson ; K.J. Elwood
- Book Title / Journal: COMPDYN 2011 III ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
- Year: 2011 , Volume: , Series:
- Earthquake engineering
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- Experimental study on the seismic behavior of shell base connections in large storage tanks
- G. Cortés ; A. Nussbaumer
- Book Title / Journal: COMPDYN 2011 III ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
- Year: 2011 , Volume: , Series:
- Earthquake engineering
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