Dynamic response of traditional and buttressed reinforced concrete minarets

Türkeli̇, Erdem; Livaoğlu, Ramazan; Doğangün, Adem

doi:10.1016/j.engfailanal.2014.12.002

Cited by 14 publications

(9 citation statements)

References 8 publications

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“…in diameter) and ø10 steel reinforcements (S420 type steel-yield strength of the reinforcement is 420 MPa) in two layers are considered (which is generally used in practice) in the dynamic analyses for longitudinal and horizontal directions, respectively. In site surveys and in practice (Türkeli et al 2015), the compressive strength of concrete used in this study is observed as typical. Also, in the analytical model considered all analyses and materials are in elastic range.…”

Section: Figure 3: Fem Of the Representative Minaretsmentioning

confidence: 80%

“…Also, the properties of concrete utilized in the buttresses are same with other concrete members. The detailed information about the assembly of buttresses can be found in the study of Türkeli et al (2015). Also, Fig.8 is obtained by modifying the figure in Türkeli et al (2015) provided for buttress strengthening.…”

Section: Figure 7: Fem Of Frp Strengthening For Model 1 With Sap2000 mentioning

confidence: 99%

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Comparative Dynamic Seismic Analyses of RC Minarets Strengthened with FRP and Buttresses

Türkeli̇

2020

Doğal Afetler Ve Çevre Dergisi

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In recent earthquakes occurred in Turkey, an unexpected number of reinforced concrete (RC) minarets were heavily damaged or collapsed causing loss of lives and economic damages. These structures can be counted as the most common constructed slender structures in Turkey. Therefore, the detailed behavior of these slender structures should be determined in order to strengthen the existing ones and construct safer and stronger RC minarets. In this study, the most common constructed types of RC minarets were analyzed under 17 August 1999 Mw 7.4 Kocaeli Earthquake for the determination of the effectiveness of strengthening techniques namely fiber reinforced polymers (FRP) and buttresses. Also, soil-structure interaction (SSI) is included in the dynamic seismic analyses of the minarets as proposed by Burman et al. (2012). At the end of the analyses performed, it was determined that FRP strengthening is more effective in enhancing the seismic response of RC minarets as the height of the minaret increases when compared with the buttress strengthening. Also, the stress demand locations predicted from the dynamic seismic analyses of the representative minarets were found to be consistent with the damages observed in recent earthquakes.

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Section: Figure 3: Fem Of the Representative Minaretsmentioning

confidence: 80%

Section: Figure 7: Fem Of Frp Strengthening For Model 1 With Sap2000 mentioning

confidence: 99%

Comparative Dynamic Seismic Analyses of RC Minarets Strengthened with FRP and Buttresses

Türkeli̇

2020

Doğal Afetler Ve Çevre Dergisi

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“…Also, the foundation and the soil under the foundation is modelled using solid elements (Fig.4). The minaret is constructed from RC whose unit weight, elasticity module and Poisson's ratio is 23.5 kN/m 3 , 30.000.000 kN/m 2 and 0.2, respectively [18]. The geometrical features of the minaret are given in Fig.5.…”

Section: Finite Element Model Of Soil and Minaretmentioning

confidence: 99%

“…4). The minaret is constructed from RC whose unit weight, elasticity module and Poisson's ratio is 23.5 kN/m 3 , 30.000.000 kN/m 2 and 0.2, respectively [18].…”

Section: Finite Element Model Of Soil and Minaretmentioning

confidence: 99%

The use of TS498 and TS-EN-1991-1-4 in the Wind Load Calculation of Reinforced Concrete Minarets Considering Soil-Structure Interaction

Türkeli̇

2019

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The minarets are among the most beautiful, meaningful and delicate works of Islamic architecture. At early times, although these slender structures were built short and with masonry stone, as time progressed, the construction of minarets with reinforced concrete and that are thin-walled and long were preferred. This has caused many reinforced concrete minarets to be damaged or destroyed under wind and earthquake forces. With regard to this issue, because of the severe winds, many minaret collapse incident took place in Turkey. Due to this reason, in this study, the wind loads acting on a selected reinforced concrete minaret have been calculated in details according to TS498 and TS-EN-1991-1-4 standards. In the calculations made, the effects of soil structure interaction on the calculated wind loads were also examined. At the end of the study, the wind loads obtained in the calculations were compared. The obtained results show that soil structure interaction is a negative effect on wind loads, this interaction increases them and that the soil structure interaction should be included in wind load calculations.

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“…Çalışmanın ana amacı AKS yerleştirilmesinin yüksek minarelerin dinamik davranışına olan etkisini incelemek olduğundan, minare modellerinin dinamik hesaplarını basitleştirmek ve doğrusal zaman tanım alanında çözümleme yapabilmek için betonarme malzeme hem çekmede, hem de basınçta doğrusal-elastik davranış gösteren bir malzeme olarak kabul edilmiştir. Betonarme minarelerle ilgili diğer bazı çalışmalarda da malzeme için benzer bir kabulün yapıldığı görülmüştür[18]. Betonun 28 günlük karakteristik silindir basınç dayanımı 30 MPa, elastisite modülü 32x103 MPa, Poisson oranı 0,2 ve birim hacim ağırlığı 24 kN/m 3 olarak alınmıştır.3.…”

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