Modeling approaches suitable for pushover analyses of RC structural wall buildings

Belletti, Beatrice; Damoni, Cecilia; Gasperi, Antonello

doi:10.1016/j.engstruct.2013.09.023

Cited by 33 publications

(12 citation statements)

References 22 publications

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“…The displacement based finite element method has been considered to be the most popular choice because of its simplicity and ease with which the computations can be performed. The use of shell element to model moderately thick structures like shear wall is well documented in the literature [15,16]. In this section, the underlying basic ideas in the formulation of the degenerated curved shell element are described.…”

Section: Degenerated Shell Element Formulationmentioning

confidence: 99%

Influence of Opening Locations on the Structural Response of Shear Wall

Muthukumar

Kumar

2014

Journal of Nonlinear Dynamics

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Shear walls have been conferred as a major lateral load resisting element in a building in any seismic prone zone. It is essential to determine behavior of shear wall in the preelastic and postelastic stage. Shear walls may be provided with openings due to functional requirement of the building. The size and location of opening may play a significant role in the response of shear walls. Though it is a well known fact that size of openings affects the structural response of shear walls significantly, there is no clear consensus on the behavior of shear walls under different opening locations. The present study aims to study the dynamic behavior of shear walls under various opening locations using nonlinear finite element analysis using degenerated shell element with assumed strain approach. Only material nonlinearity has been considered using plasticity approach. A five-parameter Willam-Warnke failure criterion is considered to define the yielding/crushing of the concrete with tensile cutoff. The time history responses have been plotted for all opening cases with and without ductile detailing. The analysis has been done for different damping ratios. It has been observed that the large number of small openings resulted in better displacement response.

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Section: Degenerated Shell Element Formulationmentioning

confidence: 99%

Influence of Opening Locations on the Structural Response of Shear Wall

Muthukumar

Kumar

2014

Journal of Nonlinear Dynamics

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“…High rise shear walls, also called slender walls, are governed by flexural behaviour (as underlined in [1] and [2]). On the other hand, low-rise walls, also called squat walls, characterized by a ratio of height to length less than or equal to two are governed by shear behaviour (as demonstrated in [3]).…”

Section: Introductionmentioning

confidence: 99%

Simulation of Monotonic, Static and Dynamic Response of Rc Squat Walls by Means of Parc_cl 2.0 Crack Model

Belletti¹,

Scolari²,

Vecchi³

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…In the newly developed performance-based seismic design, NP analysis is one of the useful methods for determining the patterns and levels of damage for assessing a structure's inelastic behavior [20]. NP analysis uses lateral external static forces at floor levels, in combination with inelastic response spectra [21], [22]. Generally, the first mode response of the structures is considered in NP analysis [23].…”

Section: Fragility Curvesmentioning

confidence: 99%

Seismic Fragility Curves for 1 and 2 Stories R/C Buildings

TEKİN¹,

GURBUZ²

2015

International Journal of Engineering Technologies IJET

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Abstract-In this study, the fragility curves were formed for 1 and 2 stories reinforced concrete (RC) residential buildings. The information regarding the structures was taken from projects of the buildings. Nonlinear pushover (NP) analyze was performed to 84 RC buildings which were divided to 2 groups. The buildings built 1998 and later were called Group-A. The building built before 1998 was called Group B. As for nonlinear analysis, a 3D computer model was drawn for each building and nonlinear analyses were applied to these models. Each building was analysed for 2 dimensions (X and Y). Totally 168 NP analysis were performed for each building. 4 damage limits (slight, moderate, heavy and complete) and 5 damage zones (undamaged, slight, medium, extensive and collapse) were determined according to maximum interstorey drift ratio. Fragility curve parameters were obtained at the result of the NP analysis. Probability density functions were calculated with the help of lognormal mean and lognormal standard deviation values of limit states. The fragility curves were generalized for the buildings in Group A and Group B. At the conclusion of this work; 8 fragility curves obtained for 1 and 2 stories reinforced concrete buildings in. Using these 8 curves; damage possibility can be estimated for RC buildings which have same features.

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Modeling approaches suitable for pushover analyses of RC structural wall buildings

Cited by 33 publications

References 22 publications

Influence of Opening Locations on the Structural Response of Shear Wall

Influence of Opening Locations on the Structural Response of Shear Wall

Simulation of Monotonic, Static and Dynamic Response of Rc Squat Walls by Means of Parc_cl 2.0 Crack Model

Seismic Fragility Curves for 1 and 2 Stories R/C Buildings

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