A hybrid force/displacement seismic design method for reinforced concrete moment resisting frames

Pian, Chao; Jia, Qingxuan; Muho, Edmond V.; Beskos, D.E.

doi:10.1016/j.soildyn.2018.09.002

Cited by 9 publications

(12 citation statements)

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“…However, structures designed by force-based design methods, such as the method of EC8 (2004), do not have a specific target IDR. For such a case, one can estimate the ID R max according to the hybrid force/displacement (HFD) seismic design method (Pian et al, 2020a, 2020b), which is a PBSD method providing comprehensive empirical expressions to predict the performance metrics for various types of RC structures. For reasons of completeness, Table 6 summarizes all these expressions related to the HFD method for RC structures.…”

Section: Proposed Expressions To Estimate the Pfa Distribution At Different Performance Levelsmentioning

confidence: 99%

“…However, it has been shown that the equal displacement rule may overestimate or underestimate deformations (Pian et al, 2020a, 2020b). Thus, a better alternative to estimate the IDR is the HFD method proposed by Pian et al (2020a, 2020b) for the PBSD of RC structures. The HFD method is summarized in Table 6 where a series of equations are given for each of the three types of RC structures considered here.…”

Section: Pfa Estimation For Two Mrfsmentioning

confidence: 99%

“…deformations (Pian et al, 2020a(Pian et al, , 2020b. Thus, a better alternative to estimate the IDR is the HFD method proposed by Pian et al (2020aPian et al ( , 2020b for the PBSD of RC structures.…”

Section: -Story Mrfmentioning

confidence: 99%

“…Empirical expressions of HFD seismic design method(Pian et al 2020a(Pian et al , 2020b used to estimate the IDR max for three types of RC structures…”

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confidence: 99%

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Deformation-dependent peak floor acceleration for the performance-based design of nonstructural elements attached to R/C structures

et al. 2021

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This study introduces a simple and efficient method to determine the peak floor acceleration (PFA) at different performance levels for three types of plane reinforced concrete (RC) structures: moment-resisting frames (MRFs), infilled–moment-resisting frames (I-MRFs), and wall-frame dual systems (WFDSs). By associating the structural maximum PFA response with the deformation response, the acceleration-sensitive nonstructural components, and the building contents, can be designed to adhere to the performance-based seismic design of the supporting structure. Thus, the proposed method can accompany displacement-based seismic design methods to design acceleration-sensitive nonstructural elements to comply with the deformation target of the supporting structure. The PFA response shape is represented by line segments defined by key points corresponding to certain floor levels. These key points are defined by explicit empirical expressions developed herein. The maximum PFA response is correlated with the maximum interstory drift ratio (IDR) and other vital characteristics of the supporting structure such as the fundamental period. The proposed expressions are established based on extensive nonlinear dynamic analyses of 19 MRFs, 19 WFDSs, and 19 I-MRFs under 100 far-fault ground motions scaled to capture different deformation targets. Realistic examples demonstrate the efficiency of the proposed method to assess the PFA response at a given IDR, making the method suitable in the framework of performance-based design.

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Section: Proposed Expressions To Estimate the Pfa Distribution At Different Performance Levelsmentioning

confidence: 99%

Section: Pfa Estimation For Two Mrfsmentioning

confidence: 99%

Section: -Story Mrfmentioning

confidence: 99%

“…Empirical expressions of HFD seismic design method(Pian et al 2020a(Pian et al , 2020b used to estimate the IDR max for three types of RC structures…”

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confidence: 99%

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Deformation-dependent peak floor acceleration for the performance-based design of nonstructural elements attached to R/C structures

et al. 2021

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“…An initiative to utilize the same procedure for composite steel/concrete structures was also proven successful [15]. The HFDD method was just newly adapted to RC structures [16] where Pian and his coresearchers have developed formulations for its application to RC structures based on numerical analyses of differentheight framed structures. They employed phenomenological models (lumped plasticity) to represent the nonlinear behaviour of reinforced concrete.…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Force/displacement Performance-based Seismic Design Procedure for RC Frames

ElKassas¹,

Sayed-Ahmed²,

Fahmy³

2020

World Congress on Civil, Structural, and Environmental Engineering

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In this paper, the use of a recently proposed seismic design method called Hybrid force/displacement design is evaluated as an option for preliminary design of RC frames in the context of the latest framework for performance-based seismic design. A prototype RC frame is chosen as a design case study and is designed twice: using the traditional code method which is force-based and using the modified design procedure. The two designs are compared based on the number of iterations required, and the expected performance in reference to the results of nonlinear time-history analysis as the closest approximation of actual behaviour. It is concluded that the modified Hybrid method has higher efficiency and reliability in achieving targeted performance of RC frames, and thus is suitable for application in performance-based seismic design.

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A simplified method for probabilistic seismic risk evaluation of nuclear containment structure

Jin

Gong

2021

International Journal of Pressure Vessels and Piping

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A hybrid force/displacement seismic design method for reinforced concrete moment resisting frames

Cited by 9 publications

References 10 publications

Deformation-dependent peak floor acceleration for the performance-based design of nonstructural elements attached to R/C structures

Deformation-dependent peak floor acceleration for the performance-based design of nonstructural elements attached to R/C structures

A Hybrid Force/displacement Performance-based Seismic Design Procedure for RC Frames

A simplified method for probabilistic seismic risk evaluation of nuclear containment structure

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