Tests on plain and steel fiber concrete-filled stainless steel tubular columns

Tokgöz, Serkan

doi:10.1016/j.jcsr.2015.07.013

Cited by 49 publications

(25 citation statements)

References 22 publications

(45 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The axial load of Specimen S1-3b obtained from the fiber analysis in the post-yield range agrees closely with the experimental one. The developed fiber model is further verified by comparing computational results with test data on biaxially loaded square CFSST slender beam-columns given by Tokgoz [20] in Table 3. An initial geometric imperfection of 1000 L was considered in the numerical analyses.…”

Section: Comparison Of Load-deflection Responsesmentioning

confidence: 88%

“…It was observed that most of the columns failed with gradually increasing the lateral deflections at the mid-length. Tokgoz [20] tested square CFSST slender beamcolumns subjected to biaxial loads. Test results indicated that the ductility of high strength concrete was considerably increased due to the confinement offered by stainless steel tubes.…”

Section: Introductionmentioning

confidence: 99%

“…Patel et al [38,39] reported that the material models of stainless steel in tension incorporated in the analysis underestimate the strengths of axially compressed CFSST short columns. Tokgoz [20] employed the fiber analysis technique to analyze biaxially loaded CFSST slender beamcolumns with compact sections of stainless steel tubes.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nonlinear analysis of biaxially loaded rectangular concrete-filled stainless steel tubular slender beam-columns

Patel

Liang

Hadi

2017

Engineering Structures

View full text Add to dashboard Cite

Rectangular concrete-filled stainless steel tubular (CFSST) beam-columns utilized as supporting members for building frames may experience axial compression and biaxial moments. A numerical simulation considering the local buckling effects for thin-walled rectangular CFSST slender beam-columns has not been performed. This paper reports a stability modelling on the structural characteristics of rectangular CFSST slender beamcolumns accounting for different strain-hardening of stainless steel under tension and compression. The influences of local buckling are considered in the simulation utilizing the existing effective width formulations. The developed numerical model simulates the strength interaction and load-deflection behavior of CFSST slender beam-columns. Comparisons of computed results with test data provided by experimental investigations are performed to validate the proposed fiber model. The influences of different geometric and material property on ultimate strengths, ultimate pure moments, concrete contribution ratio, strength interaction and load-deflection responses of CFSST slender beam-columns are examined by utilizing

show abstract

Section: Comparison Of Load-deflection Responsesmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinear analysis of biaxially loaded rectangular concrete-filled stainless steel tubular slender beam-columns

Patel

Liang

Hadi

2017

Engineering Structures

View full text Add to dashboard Cite

show abstract

“…Ellobody and Ghazy [27] tested circular plain CFSST short columns and fiber reinforced CFSST slender beam-columns. Experimental studies on rectangular CFSST slender columns under biaxial loads were reported by Tokgoz [28]. It was found that short CFSST columns had typical failure modes of the outward local buckling of stainless steel tubes and concrete crushing while CFSST slender columns generally failed by global column buckling.…”

Section: Introductionmentioning

confidence: 93%

Nonlinear analysis of circular high strength concrete-filled stainless steel tubular slender beam-columns

Patel

Liang

Hadi

2017

Engineering Structures

View full text Add to dashboard Cite

Nonlinear analysis of circular high strength concrete-filled stainless steel tubular slender beam-columns AbstractConcrete-filled stainless steel tubular (CFSST) slender columns are increasingly used in composite structures owing to their distinguished features, such as aesthetic appearance, high corrosion resistance, high durability and ease of maintenance. Currently, however, there is a lack of an accurate and efficient numerical model that can be utilized to determine the performance of circular CFSST slender columns. This paper describes a nonlinear fiber-based model proposed for computing the deflection and axial load-moment strength interaction responses of eccentrically loaded circular high-strength CFSST slender columns. The fiber-based model incorporates the accurate three-stage stress-strain relations of stainless steels, accounting for different strain hardening characteristics in tension and compression. The material and geometric nonlinearities as well as concrete confinement are included in the computational procedures. Existing experimental results on axially loaded CFSST slender columns are utilized to verify the proposed fiber-based model. A parametric study is conducted to examine the performance of high-strength slender CFSST beam-columns with various geometric and material parameters. It is shown that the fiber-based analysis technique developed can accurately capture the experimentally observed performance of circular high-strength CFSST slender columns. The results obtained indicate that increasing the eccentricity ratio, column slenderness ratio and diameter-to-thickness ratio remarkably decreases the initial flexural stiffness and ultimate axial strength of CFSST columns, but considerably increases their displacement ductility. Moreover, an increase in concrete compressive strength increases the flexural stiffness and ultimate axial strength of CFSST columns; however, it decreases their ductility. Furthermore, the ultimate axial strength of CFST slender columns is found to increase by using stainless steel tubes with higher proof stresses. decreases their ductility. Furthermore, the ultimate axial strength of CFST slender columns is found to increase by using stainless steel tubes with higher proof stresses.

show abstract

“…Klasik beton malzemesinin aksine lifli beton malzemesinde çekme çatlağı oluştuktan sonra gerilmeler, beton matrisine katılan liflerin köprü vazifesi görmesiyle komşu bölgelere aktarılır [2]. Literatürde gerçekleştirilmiş olan hem nümerik hem deneysel çalışmalarda, lifli betonun klasik betona göre yapı davranışına süneklik, dayanım ve enerji yutma kapasitesi açısından önemli katkılar sağladığı belirlenmiştir [2][3][4][5][6]. Literatürdeki birçok çalışmada, beton matrisine kancalı lif eklenmesinin betonun şekil değiştirmesine katkı sağladığı [3], çelik lif katkılı geleneksel beton kullanılarak üretilen kirişlerin kesme dayanımının tamamen lifli betonun çekme gerilmesine bağlı olduğu tespit edilmiştir [4].…”

Section: Introductionunclassified

Eğilme Etkisi Altındaki Lifli Betonarme Kirişlerin Doğrusal Olmayan Analizi

Serdar¹,

Demirtaş²,

Sarıbıyık³

et al. 2020

acperpro

View full text Add to dashboard Cite

Taşıyıcı sistem elemanlarının &uuml;retilmesinde lifli betonların kullanılması g&uuml;n ge&ccedil;tik&ccedil;e yaygınlaşmaktadır. Lifli betonlar, klasik betonlara g&ouml;re s&uuml;neklik, dayanım ve enerji yutma kapasitesi gibi parametreler a&ccedil;ısından daha olumlu sonu&ccedil;lar vermektedir. Bu &ccedil;alışmada lif katkılı beton ile &uuml;retilen betonarme kirişlerin eğilme davranışının sayısal olarak incelenmiştir. Bu ama&ccedil;la, ABAQUS sonlu elemanlar programı yardımıyla doğrusal olmayan sonlu eleman modeli oluşturulmuş ve modelin doğruluğu literat&uuml;rden se&ccedil;ilen deneysel &ccedil;alışmalar ile yapılmıştır. Doğrulanan sonlu eleman modeliyle parametrik bir &ccedil;alışma ger&ccedil;ekleştirilmiş ve lif katkılı beton ile &uuml;retilen betonarme kirişlerin eğilme davranışına &ccedil;ekme donatısı oranındaki değişimin etkisi araştırılmıştır. Elde edilen sonu&ccedil;lar grafikler halinde sunularak yorumlanmıştır.

show abstract

Tests on plain and steel fiber concrete-filled stainless steel tubular columns

Cited by 49 publications

References 22 publications

Nonlinear analysis of biaxially loaded rectangular concrete-filled stainless steel tubular slender beam-columns

Nonlinear analysis of biaxially loaded rectangular concrete-filled stainless steel tubular slender beam-columns

Nonlinear analysis of circular high strength concrete-filled stainless steel tubular slender beam-columns

Eğilme Etkisi Altındaki Lifli Betonarme Kirişlerin Doğrusal Olmayan Analizi

Contact Info

Product

Resources

About