The Importance of Postearthquake Investigations

1986 ◽  
Vol 2 (3) ◽  
pp. 653-667
Author(s):  
Walter W. Hays
Keyword(s):  
Building Codes ◽  
Technical Knowledge ◽  
Earthquake Hazards ◽  
Seismic Safety ◽  
Earthquake Resistant Design ◽  
Earthquake Resistant ◽  
Reduction Program ◽  
Critical Facilities ◽  
Earthquake Prediction Research ◽  
San Fernando

Data and technical knowledge gained from postearthquake investigations of a dozen earthquakes since the 1964 Prince William Sound, Alaska, earthquake have significantly advanced the state-of-knowledge about earthquakes. These advances have motivated new and (or) improved programs, applications, and changes in public policy, including (1) the 1977 National Earthquake Hazards Reduction Program and its extensions, (2) earthquake prediction research, (3) deterministic and probabilistic hazards assessments, (4) design criteria for critical facilities, (5) earthquake-resistant design provisions of building codes, (6) seismic safety elements, (7) seismic microzoning, (8) lifeline engineering, and (9) seismic safety organizations. To date, the 1971 San Fernando, California, earthquake has triggered more rapid advances in knowledge and applications than any other earthquake.

Meeting the Challenges of Reducing Earthquake Losses: Engineering Accomplishments and Frontiers

1999 ◽  
Vol 15 (4) ◽  
pp. 813-823
Author(s):  
Daniel P. Abrams
Keyword(s):  
Earthquake Engineering ◽  
National Standards ◽  
Earthquake Hazards ◽  
Engineering Research ◽  
Earthquake Losses ◽  
Earthquake Resistant ◽  
Reduction Program ◽  
Earthquake Effects ◽  
National Networks ◽  
Work Done

Accomplishments in earthquake engineering under the National Earthquake Hazards Reduction Program (NEHRP) have been numerous since the inception of the federal program in 1977 and are noted herein with a series of examples of former and present work done by NSF, FEMA, NIST and their investigators. These examples illustrate the implementation of research and development towards reducing earthquake losses, and include projects done to (a) better understand response of constructed facilities to earthquakes, (b) develop improved national standards and practices for planning, design and construction of earthquake resistant facilities, (c) develop methods for assessment of vulnerability of existing facilities to earthquake effects, and (d) develop methods for strengthening or repair of vulnerable facilities. Future frontiers in earthquake engineering research are also discussed including cross-disciplinary approaches of newly established national earthquake engineering research centers that are directed at minimizing losses to communities and national networks.

scholarly journals Design and Analysis of Earthquake Resistant Building (Three Storeyed R.C.C. School Building) using STAAD.PRO

2021 ◽  
Vol 9 (VI) ◽  
pp. 2846-2850
Author(s):  
Ms. Sayali Ambatkar
Keyword(s):  
Earthquake Engineering ◽  
Structural Member ◽  
Natural Phenomenon ◽  
School Building ◽  
Land Area ◽  
Seismic Safety ◽  
Earthquake Resistant Design ◽  
Earthquake Resistant ◽  
Proper Design ◽  
Recent Earthquakes

The field of Earthquake Engineering has existed in our country for over 35 years now. Indian earthquake engineers have made significant contributions to the seismic safety of several important structures in the country. However, as the recent earthquakes have shown, the performance of normal structures during past Indian earthquakes has been less satisfactory. This is mainly due to the lack of awareness amongst most practising engineers of the special provisions that need to be followed in earthquake resistant design and thereafter in construction. In India, the multi-storied building is constructed due to high cost and scarcity of land. In order to utilize maximum land area, builders and architects generally proposed asymmetrical plan configuration. These asymmetrical plan buildings, which are constructed in seismic prone areas, are likely to be damaged during earthquake. Earthquake is a natural phenomenon which can be generate the most destructive forces on structure. Buildings should be made Safe for lives by proper design and detailing of structural member in order to have a ductile form of failure. The concept of earthquake resistant design is that the building should be designed to resist the forces, which arises due to Design Basic Earthquake, with only minor damages and the forces which arises due to Maximum Considered Earthquake, with some accepted structural damages but no collapse. This paper studies the Earthquake Resisting Building.

Evaluation of Damage Potential of Ground Motions during Great Earthquakes

2003 ◽  
Vol 19 (3) ◽  
pp. 713-730 ◽  
Author(s):  
Y. Sunasaka ◽  
K. Toki ◽  
A. S. Kiremidjian
Keyword(s):  
Ground Motions ◽  
Damage Index ◽  
Geological Structure ◽  
Large Area ◽  
Damage Potential ◽  
Seismic Safety ◽  
Great Earthquakes ◽  
Earthquake Resistant Design ◽  
Earthquake Resistant ◽  
Index Value

In order to select appropriate input ground motions for earthquake-resistant design or estimation of seismic safety of structures, their characteristics should be identified. In this paper, damage potential is defined as a spectrum of strength demand required to maintain a damage index less than or equal to a tolerable damage index value. The damage index proposed by Park and Ang (1985) and a bilinear model are used to calculate the strength demand spectrum. The damage index describes the state of the concrete structure from slight damage to severe damage or collapse. Studies of the damage potential of ground motions during the recent great earthquakes, including the 1995 Hyogoken-Nanbu earthquake in Japan and the 1999 Chi-Chi earthquake in Taiwan, show that damage potential may be greatly affected by the location of the fault, the geological structure of the site, and the fault rupture mechanism. Furthermore, an estimation of damage potential of ground motions over a large area, Kawasaki City in Japan, is described.

California at Risk: Where Do We Go from Here?

1992 ◽  
Vol 8 (1) ◽  
pp. 17-34
Author(s):  
L. Thomas Tobin ◽  
Fred Turner ◽  
James F. Goodfellow ◽  
Brian L. Stoner
Keyword(s):  
At Risk ◽  
Emergency Response ◽  
Earthquake Hazard ◽  
Earthquake Hazards ◽  
Seismic Safety ◽  
Hazard Reduction ◽  
Recovery Planning ◽  
Reduction Program ◽  
Year 2000 ◽  
Risk Reducing

In 1986, the state of California embarked on a comprehensive earthquake hazard reduction program described in California at Risk: Reducing Earthquake Hazards 1987-1992. This Program identifies hazard reduction efforts for existing development, emergency response, future development, recovery planning, education, and research. The goal is to reduce the state's earthquake hazards significantly by the year 2000. This paper reviews the development of the Program, the state's progress toward hazard reduction, seismic safety legislation and refinements in the Program's second five years.

Decentralized shared computers in the National Earthquake Hazards Reduction Program

1981 ◽  
Author(s):  
Peter L. Ward ◽  
James Herriot ◽  
William F. Jolitz
Keyword(s):  
Earthquake Hazards ◽  
Reduction Program
Sign in / Sign up

Export Citation Format

Share Document