Proposing a Set of Far-Field Records for Time History Analysis in Tehran City and Comparison with FEMA-P695 Set Records

Sokhtesaraei, M. Hassani; Ghassemieh, Mehdi; Mirghaderi, Seyed Rasoul

doi:10.1142/s1793431122500178

Cited by 6 publications

(1 citation statement)

References 35 publications

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“…Which shows the importance of selecting the set records in time history analysis. Hassani et al [14], while proposing the far-filed records for the seismicity conditions of Tehran city, have done a statistical and numerical analysis of the proposed list with the far-filed records of FEMA-P695 [15].…”

Section: Introductionmentioning

confidence: 99%

Far-Field Accelerograms for Nonlinear Two-Dimensional Analysis of Steel Moment Frame

Hassani Sokhtesaraei,

Ghassemieh

2023

J. Civ. Eng. Constr.

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Due to destructive effects of earthquake loads, acceptable assessment of these loads and create a coordinated approach adapted to each seismic zone, is important. In this study, the main purpose is preparing an appropriate list of far field accelerograms for nonlinear two-dimensional analyses. The main focus of this study is to evaluate all parameters affecting on proper accelerogram selection. By considering 2000 accelerograms and all effective parameters include distance, magnitude, frequency content, earthquake mechanism, soil and properties of earth layers, a list of 20 accelerograms were presented for nonlinear two-dimensional analyses. These proposed accelerograms represent the actual ground motion as much as possible. Also, the study of final scale factor of accelerograms for steel moment frame have been obtained with point-to-point difference in periodic intervals corresponding to each frame method.

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Section: Introductionmentioning

confidence: 99%

Far-Field Accelerograms for Nonlinear Two-Dimensional Analysis of Steel Moment Frame

Hassani Sokhtesaraei,

Ghassemieh

2023

J. Civ. Eng. Constr.

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The effects of selection and scaling procedures of earthquake records on the seismic response dispersion of structures and recommendations toward seismic upgrading of codes

2023

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In this study, the effects of selection and scaling procedures of earthquake records on the dispersion of seismic response of structures are examined. This is according to the Standard No. 2800 seismic code and the ASCE code. So that during two case studies, seven earthquakes have been selected and scaled with the spectral acceleration of the seismic Standard No. 2800. Besides, the seismic response of a reinforced concrete (RC) bridge and a 7-story RC building is evaluated against scaled earthquakes. The results of the studies indicate that structures respond differently to earthquake records. However, in order to avoid designers' different decisions and align their views to choose suitable earthquakes and to evolve the selection and scaling methods of earthquake records for the seismic design of structures, in the end, some recommendations are presented. The results show that in selecting earthquakes, it is crucial to consider PGA, magnitude, and a classified range of intensities and durations of strong ground motion. In addition, to select earthquakes, paying attention to the frequency content of accelerograms and the shape of the response spectrum is also of particular importance. Considering the ranges of the scale of accelerograms depending on the importance of the structures is significant. By applying the mentioned recommendations, the methods of selecting and scaling earthquake records will be improved to some extent. In addition, seismic response dispersion will be prevented.

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A new probabilistic long-period critical excitation procedure for isolated building structures

Bazrafshan,

Khaji,

Ahmadi

2024

Mechanics Based Design of Structures and Machines

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Proposing a Set of Far-Field Records for Time History Analysis in Tehran City and Comparison with FEMA-P695 Set Records

Cited by 6 publications

References 35 publications

Far-Field Accelerograms for Nonlinear Two-Dimensional Analysis of Steel Moment Frame

Far-Field Accelerograms for Nonlinear Two-Dimensional Analysis of Steel Moment Frame

The effects of selection and scaling procedures of earthquake records on the seismic response dispersion of structures and recommendations toward seismic upgrading of codes

A new probabilistic long-period critical excitation procedure for isolated building structures

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