Evaluation of the seismic behavior factor of reinforced concrete frame structures based on comparative analysis between non-linear static pushover and incremental dynamic analyses

Louzai, Amar; Abed, Ahmed

doi:10.1007/s10518-014-9689-7

Cited by 29 publications

(29 citation statements)

References 16 publications

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“…Mazzolani and Piluso [24] addressed various theoretical procedures to compute the q-factor, such as the maximum plastic deformation approach and the energy approach. The formulation of the q-factor proposed by ATC-34 [15] is the most used currently [9,11,25]. It is expressed as the product of three parameters that significantly influence the seismic response of structures.…”

Section: Methodology For Computation Of Behaviour Factormentioning

confidence: 99%

“…The authors developed relationships for the determination of ductility factor by relating the R µ and μ parameters. In this study, the most used relationships [11,29] developed by Fajfar [28] are used to calculate the R µ -factor. Thus, Where T is the vibration fundamental period of the structure and T c is the characteristic period of ground motion.…”

Section: Methodology For Computation Of Behaviour Factormentioning

confidence: 99%

“…In many investigations, several values for the ID are considered as the primary global failure mode. Balendra and Huang [16], Massumi and Mohammadi [35], Louzai and Abed [11] used upper limits of ID equal to 2%, 2.5% and 3% of the inter-storey height (hs), respectively. The EC8 does not specify drift criteria or plastic rotation capacity to define the failure mode or the ultimate limit state corresponding to which the values of q-factor are recommended.…”

Section: Structural Performance Limitsmentioning

confidence: 99%

“…Previous researches were conducted in order to define the parameters affecting the q-factor value [9][10][11]. Some of these parameters include: bay lengths, irregularity, type of bracing system, type of connections between structural members and seismic intensity.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the Behaviour Factor of Medium Ductile SMRF Structures

Yahmi

Branci

Bouchaïr

et al. 2017

Period. Polytech. Civil Eng.

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In seismic codes, the capacity of structures is calculated using capacity design procedure based on the concept of base shear. The critical parameter in this procedure is the behaviour factor (q-factor), which allows designing the structures at the ultimate limit state accounting for their ductility and reserve strength. In this paper, the q-factor is evaluated for medium ductile steel moment-resisting frames (SMRF) using pushover analysis. The influence of specific parameters, such as the stories number, the "Column/Beam" capacity and the local response of structural members, is studied. The results show that the most important parameter that affects the q-factor is the local response of first-storey columns, while the "Column/ Beam" capacity has a less effect on this factor. Furthermore, it is observed that the q-factor value assigned to the studied frames in Eurocode-8 is systematically underestimated for low-rise frame, while the use of this value for high-rise frame is potentially unsafe.

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Section: Methodology For Computation Of Behaviour Factormentioning

confidence: 99%

Section: Methodology For Computation Of Behaviour Factormentioning

confidence: 99%

Section: Structural Performance Limitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluating the Behaviour Factor of Medium Ductile SMRF Structures

Yahmi

Branci

Bouchaïr

et al. 2017

Period. Polytech. Civil Eng.

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“…In their research work, it was found that by changing the area and the angle of some elements, the amount of wall coupling could be affected. In another research, Louzai and Abed [12] evaluate the seismic behavior coefficient of reinforced concrete structures and they found that changes of behavior coefficient are not the same via identical analysis methods. Moreover, Soltangharaei et al [13] studied the buildings in a earthquake near fault.…”

Section: Introductionmentioning

confidence: 99%

Investigating the behavior factor of coupled concrete shear walls with steel coupling beam

Daneshvar

Karamodin

2018

Scientia Iranica

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The behavior factor is used to reduce the elastic spectrum ordinate or the forces obtained from a linear analysis in order to take into account the non-linear structural properties. The more accurate this parameter is estimated, the more exact responses of the structures will be obtained. Recently, coupled walls with steel coupling beams are extensively utilized as an efficient system against lateral forces in high-rise buildings. But, there is not enough information about the behavior of these walls during earthquake, and design codes have not suggested any behavior factor for this structural system. Consequently, this paper is devoted to find the behavior factor of this structural system. To achieve this goal, six-, twelve-and twenty-story buildings are assessed. Except for the number of stories, all characteristics of these buildings are completely similar. Buidlings' height, the length of the coupling beams and the coupling ratio are key parameters which influence the behavior factor of the aforesaid structural system. In this work, the effect of these parameters on this factor are studied.

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