Nonlinear seismic analysis of masonry infilled RC frame structures

Mahmud, Emin; Bonev, Zdravko; Abdulahad, Emad

doi:10.5937/grmk1901017m

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…Under a seismic action, the interaction of the infill walls and the reinforced concrete building frame was shown to affect internal force distribution in the frame [18][19][20]. The overall building frame was shown to provide larger seismic resistance [23][24][25][26][27][28], but the interaction between the infill walls and the reinforced concrete frame might yield undesirable failure patterns [21,29,30], as the shear failure mode could be observed in some reinforced concrete columns. Modeling the infill walls could be done as a wall continuum model, but this took a computational cost [31].…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance of Infilled Reinforced Concrete Frame with Crumb Rubber Mortar Wall Panel

Chayaboot,

Boonpichetvong,

Pannachet

et al. 2024

Civ Eng J

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In this paper, the seismic performance of reinforced concrete (RC) frames with crumb rubber mortar wall panels is reported. The tests of the crumb rubber mortar were conducted to obtain model parameters for equivalent diagonal compression struts. With a higher percentage of sand replacement by crumb rubber, the unit weight, the compressive strength, the tensile strength, and the modulus of elasticity of the crumb rubber cement mortar are decreased. Nonlinear pushover analysis of a simple frame shows that the RC frame with a wall panel with less crumb rubber demonstrates lower lateral deformation ability. The failure modes are affected by the amount of crumb rubber and are dependent on the modeling choice of the equivalent compression strut as the wall panel representative. Finally, the seismic performance of the RC building was studied by the equivalent static approach to explore the influence of the crumb rubber mortar wall panels on internal forces and deformations of the frame. With a higher percentage of crumb rubber, the weight of the infill wall panels and the overall weight of the building are reduced, which meets lower seismic base shear demand. This benefit is, however, traded off with higher lateral deformation and also higher inter-story drift of the studied building frames. Doi: 10.28991/CEJ-2024-010-02-09 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Seismic Performance of Infilled Reinforced Concrete Frame with Crumb Rubber Mortar Wall Panel

Chayaboot,

Boonpichetvong,

Pannachet

et al. 2024

Civ Eng J

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“…Moreover, the natural period of the structure with the inclusion of these panels was about 25 percent lower compared to the bare frame. Mahmud et al [6] employed numerical techniques to examine the impact of including infill panels on the seismic response of a singlestory reinforced concrete frame. The inclusion of these panels was found to increase the base shear of the structure, and that was attributed to the increase in its lateral stiffness.…”

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confidence: 99%

Effects of Infill Panels with Various Configurations on the Non-Linear Dynamic Responses of Reinforced Concrete Structures

Mohamad,

Mahmood

2023

Tikrit j. eng. sci.

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This study presents the effects of including infill panels on the non-linear dynamic response of a hypothetical reinforced concrete frame when subjected to an earthquake. Infill panels are represented by equivalent diagonal struts using three different configurations, i.e., single, double with three different connection locations with the beams, and triple struts. The main goal is to determine the simplest and most appropriate representation of the infill panels by analogous struts. The effect of panel sizes on the non-linear dynamic response of the structure is also presented in this work. The main results showed that including infill panels in the analysis reduced the natural period, roof displacement, and story drift ratio, increasing the roof acceleration and shear forces at the structure base. Utilizing the triple model and the double strut joined at the midspan of the beams showed a good agreement with those using the complete infill model.

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Nonlinear seismic analysis of masonry infilled RC frame structures

Cited by 2 publications

References 10 publications

Seismic Performance of Infilled Reinforced Concrete Frame with Crumb Rubber Mortar Wall Panel

Seismic Performance of Infilled Reinforced Concrete Frame with Crumb Rubber Mortar Wall Panel

Effects of Infill Panels with Various Configurations on the Non-Linear Dynamic Responses of Reinforced Concrete Structures

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