10-09-2010, 01:22 PM
..
20) -- Luco N, and Cornell CA. (2007). Structure-specific scalar intensity measures for
near-source and ordinary earthquake ground motions. Earthquake Spectra; 23(2):357–92.
This paper deals with several alternative ground-motion intensity measures (IMs) that are intended for use in assessing the seismic performance of a structure at a site susceptible to near-source and/or ordinary ground motions. The efficiency and sufficiency of each alternative IM, which are quantified via (i) nonlinear dynamic analyses of the structure under a suite of earthquake records and (ii) linear regression analysis, are demonstrated for the drift response of three different moderate- to long-period buildings subjected to suites of ordinary and of near-source earthquake records.
21) -- Luco, N. and Bazzuro, P. (2007). Does amplitude scaling of ground motion records result in biased nonlinear structural drift responses? Earthquake Engineering and Structural Dynamics; 36:1813–1835.
This article investigates whether scaling of records randomly selected from an Mw–R bin (or range) to a target fundamental-mode spectral acceleration (Sa) level introduces bias in the expected nonlinear structural drift response of both single-degree-of-freedom oscillators and one multi-degree-of-freedom building. The bias is quantified relative to unscaled records from the target Mw–R bin that are ‘naturally’ at the target Sa level. The results demonstrate that scaling can indeed introduce a bias that, for the most part, can be explained by differences between the elastic response spectra of the scaled versus unscaled records.
22) -- Baker, JW. (2007). Measuring Bias in Structural Response Caused by Ground Motion
Scaling, 8th Pacific Conference on Earthquake Engineering, December 5-7. Paper Number 056.
The paper proposes a method for detecting such scaling bias based on selecting a suite of ground motion records that have been scaled to all have the same intensity level (where here intensity is measured by spectral acceleration at the structure’s first-mode period). The structural responses associated with the records are plotted versus the records’ scale factors.
23) -- Baker, JW and Cornell, CA (2008). Vector-valued intensity measures for pulse-like near-fault ground motions, Engineering Structures 30: 1048–1057.
In this paper, an improved vector-valued measure of ground motion intensity is considered for structural response prediction, with attention also given to computing occurrence rates for this intensity measure using extensions of standard probabilistic seismic hazard analysis. It explains the possibility of accounting the near-fault effects when assessing the reliability of structures located at sites where pulse-like ground motions may occur.
24) -- Baker, JW and Cornell, CA (2008). Vector-Valued Intensity Measures Incorporating Spectral Shape for Prediction of Structural Response, Journal of Earthquake Engineering; 12(4): 534-554.
The article presents two methods for identifying effective periods and used to investigate intensity measures (IM) for example structures, and an improvement in the efficiency of structural response predictions is also shown. A method is presented for predicting the probability distribution of structural response using a vector IM while accounting for the effect of collapses. The ground motion parameter ε is also considered as part of a three-parameter vector.
.. To be continued
20) -- Luco N, and Cornell CA. (2007). Structure-specific scalar intensity measures for
near-source and ordinary earthquake ground motions. Earthquake Spectra; 23(2):357–92.
This paper deals with several alternative ground-motion intensity measures (IMs) that are intended for use in assessing the seismic performance of a structure at a site susceptible to near-source and/or ordinary ground motions. The efficiency and sufficiency of each alternative IM, which are quantified via (i) nonlinear dynamic analyses of the structure under a suite of earthquake records and (ii) linear regression analysis, are demonstrated for the drift response of three different moderate- to long-period buildings subjected to suites of ordinary and of near-source earthquake records.
21) -- Luco, N. and Bazzuro, P. (2007). Does amplitude scaling of ground motion records result in biased nonlinear structural drift responses? Earthquake Engineering and Structural Dynamics; 36:1813–1835.
This article investigates whether scaling of records randomly selected from an Mw–R bin (or range) to a target fundamental-mode spectral acceleration (Sa) level introduces bias in the expected nonlinear structural drift response of both single-degree-of-freedom oscillators and one multi-degree-of-freedom building. The bias is quantified relative to unscaled records from the target Mw–R bin that are ‘naturally’ at the target Sa level. The results demonstrate that scaling can indeed introduce a bias that, for the most part, can be explained by differences between the elastic response spectra of the scaled versus unscaled records.
22) -- Baker, JW. (2007). Measuring Bias in Structural Response Caused by Ground Motion
Scaling, 8th Pacific Conference on Earthquake Engineering, December 5-7. Paper Number 056.
The paper proposes a method for detecting such scaling bias based on selecting a suite of ground motion records that have been scaled to all have the same intensity level (where here intensity is measured by spectral acceleration at the structure’s first-mode period). The structural responses associated with the records are plotted versus the records’ scale factors.
23) -- Baker, JW and Cornell, CA (2008). Vector-valued intensity measures for pulse-like near-fault ground motions, Engineering Structures 30: 1048–1057.
In this paper, an improved vector-valued measure of ground motion intensity is considered for structural response prediction, with attention also given to computing occurrence rates for this intensity measure using extensions of standard probabilistic seismic hazard analysis. It explains the possibility of accounting the near-fault effects when assessing the reliability of structures located at sites where pulse-like ground motions may occur.
24) -- Baker, JW and Cornell, CA (2008). Vector-Valued Intensity Measures Incorporating Spectral Shape for Prediction of Structural Response, Journal of Earthquake Engineering; 12(4): 534-554.
The article presents two methods for identifying effective periods and used to investigate intensity measures (IM) for example structures, and an improvement in the efficiency of structural response predictions is also shown. A method is presented for predicting the probability distribution of structural response using a vector IM while accounting for the effect of collapses. The ground motion parameter ε is also considered as part of a three-parameter vector.
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
http://forum.civilea.com/thread-27464.html
***************************************
.. To be continued
.