Post-Fire Residual Capacity of Reinforced Concrete Beam

Bhuiyan, M. H.; Ahmed, Shafaat

doi:10.1007/978-981-16-5547-0_13

Cited by 2 publications

(3 citation statements)

References 21 publications

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“…The temperature distribution of the columns, and beams for exposing to high temperature for 30-60-90 minutes, whose results were to be used in the section and earthquake analysis, are shown in Figures 6-7. The results shown in Figures 6-7 are compatible with the literature [3,5,6,10,11]. According to the published result, increase in the exposure time to high temperatures, the temperature of the inner layers will consequently increase.…”

Section: Thermal Analysissupporting

confidence: 90%

“…Fires cause life, structure, and economic losses all over the world. The increasing temperature on an RC member surface leads to the propagation of temperature to the inner layers of concrete, and so the strength of both concrete and the reinforcing steel reduces [3]. Therefore, in order to evaluate the fire resistance of the reinforced concrete element, it is necessary to know the sectional temperatures in concrete and steel.…”

Section: Introductionmentioning

confidence: 99%

“…Bhuiyan and Ahmed [3], Xiao and Konig [5], Eunmi et al [6], and Short et al [7] studied the behavior of concrete under the effect of fire and as a result, after exposure to fire, decrease in the strength and modulus of elasticity of the concrete, cracks and spalling in the concrete, decrease in the loadcarrying capacity and stiffness of the structure, color changes of concrete, decrease in the density of the concrete and significant changes in the appearance of the surface stated that they were observed. Ivanka et al [8] stated that the thermal properties of concrete are mainly related to the type of aggregate used.…”

Section: Introductionmentioning

confidence: 99%

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Static Capacity Curves of Reinforced Concrete Structures Exposed to High Temperature Effects

KÜÇÜK>

Düzgün

2022

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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In this study, it is aimed to investigate the seismic performance of a reinforced concrete (RC) structural system exposed to high temperatures. For this purpose, a RC structure with 4 floors and 4 spacings was designed. First of all, column and beam elements were modeled by using ANSYS software and then, thermal analysis was performed assuming that they were exposed to the standard fire curve to obtain the temperature distributions in the cross-sections of the reinforced concrete elements. Secondly, the sectional analyses were performed for the reinforced concrete element sections and moment-curvature relations were obtained. Finally, the three dimensional (3D) structural system was modeled and static pushover analysis was carried out in accordance with the Turkish Building Earthquake Code (TBEC 2018). The results showed that as the exposure time to high temperature increase the inelastic displacement capacity and the base shear force values decrease. The results were also affected by the location of the fire event. Besides, plastic hinges occurred more quickly than the situation before fire event, resulting in a decrease in the load carrying capacity and stiffness of the system.

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