Seismic response of mid-rise steel MRFs: the role of geometrical irregularity, frequency components of near-fault records, and soil-structure interaction

Mashhadi, Sima; Asadi, Azita; Homaei, Farshad; Tajammolian, Hamed

doi:10.1007/s10518-021-01103-2

Cited by 11 publications

(2 citation statements)

References 40 publications

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“…A six-storey steel frame model considering soil-structure interaction was tested by shake table test and numerically simulated to investigate the effects of different soil types, structural properties and soil-structure interaction which showed that soil-structure interaction effects can noticeably mitigate the dynamic response of structures [13]. Seismic response of mid-rise steel moment-resisting frames considering the role of geometrical irregularity, frequency components of near-fault records, and soil-structure interaction was investigated to indicate the important role of residual frequency component and soil-structure interaction [14]. A novel probabilistic approach to account for soilstructure interaction in the seismic design of building structures was introduced to capture soilstructure effects on the seismic performance of structures by proposing a response modification factor [15].…”

Section: Literature Reviewmentioning

confidence: 99%

Probabilistic collapse assessment of steel frame structures considering the effects of soil-structure interaction and height

Sabouniaghdam,

Mohammadi Dehcheshmeh,

Safari

et al. 2022

Scientia Iranica

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This paper investigates the seismic performance of Intermediate Moment-Resisting Steel Frame structures considering the effects of height and soil-structure interaction. For this purpose, three 3D structures of 3, 6 and 9-storey were designed using CSI ETABS software in accordance with ASCE7-16. Then the 2D frames of the structures were simulated by OpenSees software and to account for the nonlinearity of the material, the plastic hinge elements were used. The 2D frames were analyzed using IDA method subjected to 22 far-field ground motion records of FEMA-P695. Finally, the fragility curves of the structures were developed. The results showed that consideration of soil-structure interaction leads to lower spectral acceleration as height increases, meaning that higher-rising structures have record-induced S a(T1,5%) closer to S a(Design) , and with decreasing height the difference tends to increase. Exceedance probability decreases with the increase of structure's height and soil-structure interaction consideration adapts to lower exceedance probability. Also, the investigated Intermediate Moment-Resisting Steel Frame structural models designed according to ASCE7-16 consideration showed to have acceptable seismic performance against far-field records indicating that their exceedance probability in terms of the LS and CP performance level respectively are less than 0.45 and 0.03.

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Section: Literature Reviewmentioning

confidence: 99%

Probabilistic collapse assessment of steel frame structures considering the effects of soil-structure interaction and height

Sabouniaghdam,

Mohammadi Dehcheshmeh,

Safari

et al. 2022

Scientia Iranica

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“…Nonlinear analysis on efficiency of floor systems showed that response demand was increased under fling-step compared to forward-directivity which leads to more severe damage to buildings [24]. According to an investigation on behavior of the regular and irregular structures subjected to directivity effects, the high-frequency quantity should not be ignored since it may be thought that the resonance phenomenon occurs at TP/T1=1 (the ratio of pulse period to first mode period) [25]. In this situation, designers will have two choices: decomposing NF records to their high-or low-frequency components applying the dominant component based on the TP/T1 value and using the original ground motions.…”

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confidence: 99%

An Investigation on Seismically Isolated Buildings in Near-Fault Region

Sesli¹,

Tonyali²,

YURDAKUL³

2022

JIENS

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Earthquake ground motions are affected by the earthquake magnitude, topographic features, and the geological structure of the ground, as well as the distance of the area under the earthquake to fault. The ground motions close to the fault are quite different from ground motions away from the seismic source. The ground motions, which are at about 20 km from the rupture are generally named as near-fault (NF) ground motions [1][2][3][4]. Some recent earthquakes like as Northridge 1994, Kobe 1995, 1999 Chi-Chi etc. are known as a short-duration impulsive motion that exposes the structure to high input energy at the beginning of the motions [5]. These motions have velocity pulse amplitude. This specialty cannot be seen in records obtained far-field (FF) regions [6]. The velocity pulse duration must be larger than 1.00 second and also the ratio of the peak ground velocity (PGV) to the peak ground acceleration (PGA) must be larger than 0.10 second [7].Two main categories of the NF ground motions are fling-step and forward-directivity, respectively. The fling-step motions cause permanent static displacement in ground, whereas directivity effects do not create permanent displacement. Comparison to the FF ground motions, directivity-effects having the long-period and high-density and the fling-step effect causing permanent static ground displacements, are destructive for structures [8].

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Estimation of the inelastic displacement ratio for structures considering nonlinear soil-structure interaction

Homaei

2022

Bull Earthquake Eng

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Seismic response of mid-rise steel MRFs: the role of geometrical irregularity, frequency components of near-fault records, and soil-structure interaction

Cited by 11 publications

References 40 publications

Probabilistic collapse assessment of steel frame structures considering the effects of soil-structure interaction and height

Probabilistic collapse assessment of steel frame structures considering the effects of soil-structure interaction and height

An Investigation on Seismically Isolated Buildings in Near-Fault Region

Estimation of the inelastic displacement ratio for structures considering nonlinear soil-structure interaction

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