- Analysis of seismic shear design of twenty-story rc building with ductile wall system
- S. Jankovic ; J. Pejovic
- 2nd European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey
- Book Title / Journal:
- Year: 2014 , Volume: , Series:
- Earthquake engineering
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- Seismic design guidelines to mitigate upheaval buckling of small diameter pipes
- H. Shinkai ;
- 2nd European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey
- Book Title / Journal:
- Year: 2014 , Volume: , Series:
- Earthquake engineering
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- Scenario damage analysis of RC precast industrial structures in Tuscany, Italy
- R Nascimbene ; R. Pinho ; H. Crowley ; V. Silva ; C. Casotto
- 2nd European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey
- Book Title / Journal:
- Year: 2014 , Volume: , Series:
- Earthquake engineering
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- Seismic design of steel special concentrically braced frame systems: A guide for practicing engineers
- J.F. Hajjar ; C.W. Roeder ; R. Sabelli
- Book Title / Journal: NIST GCR 11-917-10, National Institute of Standards and Technology - U.S. Department of Commerce
- Year: 2013 , Volume: , Series:
- Earthquake engineering
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- A reconnaissance report on two Iran, Makran Earthquakes
- H. Mirzaei-Alavijeh ; E. Farzanegan ; F. Sinaiean ; M.. Mahdian ; M Daneshdust ; M.P.M. Shahvar ; H. Heydari ; A. Ansari ; M. Zare
- Book Title / Journal: The Earthquake Engineering Research Institute (EERI)
- Year: 2013 , Volume: , Series:
- Earthquake engineering ; Seismic effects
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- The Mw 6.6 Earthquake of April 20, 2013 in Lushan, China
- M. Lew ; Y. Xiao
- Book Title / Journal: EERI Report
- Year: 2013 , Volume: , Series:
- Earthquake engineering ; Seismic effects
- Keywords: Lushan ; China ; EERI
- Description
- This report is based on two accounts from EERI members. Marshall Lew, AMEC, Los Angeles,
CA, made a one-day visit on May 28th to Lushan County of Ya’an City in Sichuan Province in
southwestern China; Yu Xiao, urban planner, College Station, TX, paid a two-day visit to the
same area in early June. Because Lushan County was one of the 41 severely damaged areas
in the 2008 Wenchuan earthquake, the main goal of Xiao’s field visit was to determine whether
lessons from the previous quake are being used to guide emergency management, temporary shelter/housing, and recovery planning. After her visit, she received updates from contact
persons in China.
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- The November 7, 2012 M7.4 Guatemala Earthquake and its Implications for Disaster Reduction and Mitigation
-
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Earthquake engineering ; Seismic effects
- Keywords: Guatemala earthquake 2012 ; disaster reduction ; disaster mitigation
- Description
- During the first week of April 2013 a group of engineers from EERI and AGIES, along with consultants from the World Bank, visited some of the areas affected by the November 7, 2012 M7.4 earthquake. The main purpose of the visit was to collect information about the effects of the earthquake and to gain insight into current construction practices in the regions damaged. This
report is the first in a series of case studies being
developed by EERI on recovery and resilience in
developing countries. It was funded by a grant
agreement between EERI and the Global Facility for
Disaster Recovery and Reconstruction (GFDRR) at The World Bank. The field study conducted by AGIES, EERI, and the World Bank, is a best practice worthy of replication for understanding the causes of structural damage and improving building codes and standards accordingly.
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- Soft story risk reduction: lessons from the Berkeley data
- D. Bonowitz ; S. Rabinovici
- A Special Projects and Initiatives report to Earthquake Engineering Research Institute, EERI.
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Earthquake engineering
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- Seismic Response of Asymmetrical Infilled Concrete Frames
- T. Mahdi ; V. Bahreini
- Procedia Engineering, Vol. 54, pages 341-352
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Earthquake engineering
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- Evaluation of Infill Strut Properties Based on In-plane Cyclic Tests
- S. Hak ; P. Morandi ; M. Magenes
- Book Title / Journal: Građevinar
- Year: 2013 , Volume: 65 , Series:
- Earthquake engineering
- Keywords: masonry infill ; equivalent diagonal strut ; cyclic in-plane testing ; limit states
- Description
- In the nonlinear analysis of masonry infilled RC frame structures, simple strut models are often adopted to represent the masonry infill, particularly in the case of extensive parametric numerical studies. Therefore, a careful definition of the corresponding strut properties is of exceptional significance for achieving a realistic building response. A method for evaluation of masonry infill strut properties is proposed and applied in this paper, based on the interpretation of results obtained by cyclic in-plane testing of single-storey, single-bay bare and infilled RC frame specimens.
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- Experimental pull-out test program of wall-to-diaphragm adhesive connections and observations from 2010/2011 Canterbury earthquakes
- D. Dizhur ; J.M. Ingham ; J. Campbell ; A.E. Schultz
- 2013 NZSEE Conference, Wellington
- Book Title / Journal:
- Year: 2013 , Volume: , Series:
- Earthquake engineering
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- Nonstructural vulnerability functions for building categories
- K. Farokhnia
- Book Title / Journal: Ph.D. Thesis, Department of Civil, Environmental and Architectural Engineering University of Colorado
- Year: 2013 , Volume: , Series:
- Earthquake engineering
- Description
- There is a rich literature of seismic vulnerability information, only exceeded
by the vast need for more. Methods to derive new seismic vulnerability functions
can be categorized into three types. In generally decreasing order of credibility they
are empirical method, analytical method, and expert opinion. Particular
implementations often include elements of two or more of these categories. The empirical approach represents the best standard of seismic vulnerability.
In this method, historical loss data are grouped by asset type (e.g., stone masonry
buildings), data for a group are plotted on a graph with loss on the y-axis and
estimated excitation on the x-axis, and a regression analysis is performed to fit a
curve to the mean or median value, and quite often to the residual error. The second
approach, analysis by engineering principles, provides insight that empirical
methods do not, but can be costly and can lack the built-in validation of empirical
methods. The third approach, expert opinion, is the most efficient of the three,
requiring little analysis but offering little in the way of validation. The present
research addresses the second approach, or rather a subset of it: vulnerability of
non-structural building components. Non-structural components constitute the majority of the construction cost of
buildings, contributing around 60% (Whittaker and Soong, 2003). By non-structural
components, one means any component in a building that does not significantly 2
contribute to resisting lateral or vertical loads. Nonstructural components include:
terminal and package units, plumbing fixtures, lighting and branch wiring,
partitions, doors, window etc.
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- An analytical procedure for the derivation of state-dependent fragility curves for masonry buildings
- M. Rota ; A. Mouyiannou ; F. Graziotti ; G. Magenes ; A Penna
- Book Title / Journal: Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics 2013 (VEESD 2013), C. Adam, R. Heuer, W. Lenhardt & C. Schranz (Eds.), Vienna, Austria, Paper
- Year: 2013 , Volume: , Series:
- Earthquake engineering
- Description
- The seismic capacity of a structure is a function of the characteristics of the system and of its state,
which is mainly affected by previous damage and deterioration. The effect of repeated shocks (for example
during a seismic sequence or due to multiple events affecting an unrepaired building stock) on the seismic
vulnerability of masonry buildings is considered in this work by developing state-dependent fragility curves.
These curves only take into account cumulated seismic damage, neglecting possible ageing effects. An analytical
procedure for the derivation of fragility curves is proposed, which is based on nonlinear dynamic analyses with a
large set of unscaled natural records. To speed up computational time, analyses are carried out using an
equivalent single-degree-of-freedom system, properly calibrated to reproduce the cyclic dynamic response of the
selected building prototype.
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- A combined local damage index for seismic assessment of existing RC structures
- P.E. Mergos ; A.J. Kappos
- Book Title / Journal: Earthquake Engineering and Structural Dynamics,
- Year: 2013 , Volume: 42 , Series:
- Earthquake engineering
- Description
- A new local damage index for existing reinforced concrete (RC) structures is
introduced, wherein deterioration caused by all deformation mechanisms (flexure,
shear, anchorage slip) is treated separately for each mechanism. Moreover, the
additive character of damage arising from the three response mechanisms, as well as
the increase in degradation rate caused by their interaction, are fully taken into
consideration. The proposed local damage index is then applied, in conjunction with a
finite element model developed previously by the authors, to assess seismic damage
response of several RC column and frame test specimens with substandard detailing.
It is concluded that in all cases and independently from the prevailing mode of failure,
the new local damage index describes well the damage pattern of the analysed
specimens.
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- Simplified dynamic response analysis of high-rise buildings subjected to impulse-type vertical ground excitations including wave propagation effect
- Z. He ; H.Q. Zhang ; Y. Yang
- Book Title / Journal: The 15th World Conference on Earthquake Engineering, Lisbon, Portugal,
- Year: 2012 , Volume: , Series:
- Earthquake engineering
- Description
- This study aims at predicting the vertical macro-level responses of high-rise buildings excited by near-fault
impulse-type vertical component of earthquake waves by proposed simplified wave propagation method.
High-rise buildings are simplified as a continuous solid model with lumped masses and springs, having variable
mechanical parameters. The Fast Fourier Transform (FFT) filtering process is applied in the proposed wave
propagation analysis in which time delay is taken into account. In addition to the proposed wave propagation
method, conventional vibration differential equations and the wave propagation method which is based on
difference filter have also been established and analyzed. Comparisons of the computational results from the
three methods indicate that wave-propagation-based methods are more competent for predicting structural
responses of structures under impulse-type vertical component of earthquake waves which have larger amplitude
and shorter duration. It is also shown that less energy can be transferred into the upper part of structures due to
significant vertically irregularities in stiffness and mass along structural height. Some preliminary conceptual
design ideas from the study for designing high-rise buildings have been advised.
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