Results 301 to 310 of about 186,164 (348)

SOAR Telescope seismic performance II: seismic mitigation

SPIE Proceedings, 2016
We describe design modifications to the SOAR telescope intended to reduce the impact of future major earthquakes, based on the facility’s experience during recent events, most notably the September 2015 Illapel earthquake. Specific modifications include a redesign of the encoder systems for both azimuth and elevation, seismic trigger for the emergency ...
Jonathan H. Elias, Freddy Muñoz, Michael Warner, Rossano Rivera, Manuel Martínez   +4 more
openaire   +1 more source

Seismic precast: seismic performance assessment of existing precast industrial buildings

2021
published
Furtado, André, Arêde, António, Rodrigues, Fernanda, Rodrigues, Hugo, Vitorino, Hugo, Varum, Humberto, Ostetto, Liana, Batalha, Nádia, Fernandes, Paulo, Sousa, Romain, Silva, Vítor   +10 more
openaire   +3 more sources

Well Performance Analysis Using 4D Seismic

71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009, 2009
In this paper a methodology is presented that may allow to detect an over-pressured region in the overburden which was induced from an injector well.
Michael Nickel, Lars Sonneland
openaire   +1 more source

Seismic Performance of Seismic-Isolated Building for Long-Period Ground Motion and Limited Performance of Seismic Isolator

Structures Congress 2008, 2008
earthquakes. The Special Investigation Committee on Response to Catastrophic Disasters Including the Anticipated Tokai Earthquake (chair: Hiroshi Akiyama) of the Architectural Institute of Japan (AIJ) has been carrying out research to prepare for the occurrence of these earthquakes.
Haruyuki Kitamura, Yasuo Takenaka, Kazuo Tamura   +2 more
openaire   +1 more source

Performance-Based Seismic Design

2012
An approach is presented to structural optimization for performance-based design in earthquake engineering. The objective is the minimization of the total cost, including repairing damage produced by future earthquakes, and satisfying minimum target reliabilities in three performance levels (operational, life safety, and collapse).
Oscar Möller, Marcelo Rubinstein, Fabián Savino, Ricardo O. Foschi   +3 more
openaire   +1 more source

Performance Based Seismic Engineering

2001
Performance based seismic engineering is the modern approach to earthquake resistant design. Rather than being based on prescriptive mostly empirical code formulations, performance based design is an attempt to predict buildings with predictable seismic performance.
Farzad Naeim, Hussain Bhatia, Roy M. Lobo   +2 more
openaire   +1 more source

Simplified seismic performance assessment and implications for seismic design

Earthquake Engineering and Engineering Vibration, 2014
The last decade or so has seen the development of refined performance-based earthquake engineering (PBEE) approaches that now provide a framework for estimation of a range of important decision variables, such as repair costs, repair time and number of casualties.
Timothy J. Sullivan, David P. Welch, Gian Michele Calvi   +2 more
openaire   +1 more source

Performance-based seismic design

2019
This chapter discusses seismic performance objectives and illustrates how limits on peak displacement and ductility demands constrain the properties of acceptable oscillators. Descriptions of the degree of damage to structural components, nonstructural components, and building contents at various shaking intensities have been articulated in greater ...
Mark Aschheim, Enrique Hernández, Dimitrios Vamvatsikos   +2 more
openaire   +1 more source

Seismic performance of riveted connections

Journal of Constructional Steel Research, 2002
Abstract The results of tests on seven full-scale T-stub riveted connections are described. The differences in connector behavior between modern bolts and older rivets are discussed, and the effect of encasement on the strength, stiffness, and ductility of older steel connections is highlighted.
G.P. Forcier, R.T. Leon, B.E. Severson, C.W. Roeder   +3 more
openaire   +1 more source

Seismic Performance of Timber Bridges

Transportation Research Record: Journal of the Transportation Research Board, 2000
Compared with the seismic performance of concrete and steel highway bridges, the seismic performance of timber bridges is not well understood. This is because, historically, little effort has been spent on documenting the seismic performance of timber bridges in past earthquakes or conducting research to develop an improved understanding of the ...
John B. Mander, Dion R. Allicock, Ian M. Friedland   +2 more
openaire   +1 more source