Simplified design equation for web tapered I-sections using finite element modeling

• Autorzy: Rameshbabu C. , Prabavathy S.

Identyfikatory

DOI

10.2478/ace-2018-0029

• Języki publikacji: EN

Abstrakty

EN

The web-tapered I-columns have the capacity to resist the flexural buckling and lateral torsional buckling at a particular location where as in the rest of the member the capacity is lower. There needs a focusing on the nonprismatic members, to find the buckling capacity and standard procedures are to be framed in Indian Code IS 800:2007. This exploratory research explores simulated finite element models covering a total of 60 web tapered column sections having taper ratios (h2/h1) from 1.0 to 3.0 using FEA software ANSYS17.2. With an elaborate Eigenvalue buckling analysis, this research has come up with newer design equation for calculating the buckling load of web tapered I columns. This novel equation could predict the buckling stress for any taper ratio of web tapered I column of any length.

Słowa kluczowe

EN

web taper; I-section; eigen value buckling; finite element modelling; Ansys

PL

przekrój zwężający się; przekrój I; wyboczenie wartości własnej; modelowanie elementów skończonych; ANSYS

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2018
• Tom: Vol. 64, nr 3
• Strony: 57--66
• Opis fizyczny: Bibliogr. 14 poz., il., tab.

Twórcy

autor

Rameshbabu C.

• Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, India

autor

Prabavathy S.

• Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, India

Bibliografia

• 1. Prawel.S.P., Morrell.M.L.Lee. G.C, „Bending and Buckling Strength of Tapered Structural Members“, Journal of Experimental Mechanics, Feb 1984.
• 2. Butler.D.J., and Anderson G.B., “The Elastic Buckling of Tapered Beam Columns“, Welding Journal Vol 42. No.1 (Jan 1963)
• 3. Kitipornchai.S. et.al., “Elastic Stability of Tapered I – Beams“ Journal of Structural Division ASCE 98 No. ST3, pp. 713-28.
• 4. Nethercot, D.A. Lateral buckling of tapered beams, Publications, IABSE, 33, pp. 173-92. (1973)
• 5. Bradford, M.A. and Cuk, P.E. Elastic buckling of tapered monosymmetric I-beams, Journal of Structural Engineering, ASCE, 114, No. 5, pp. 977-96. (1988)
• 6. Kitipornchai, S., and Trahair, N.S. Elastic behaviour of tapered monosymmetric I-beams, Journal of the Structural Division, ASCE, 101, No. ST8, pp. 1661-78. (1975)
• 7. Bradford, M.A. “Inelastic buckling of tapered monosymmetric I-beams, Engineering Structures“ 11, No. 2, pp. 119-126. (1989)
• 8. Anisio Andrade et.al., “Lateral Torsional buckling of singly symmetric web – tapered thin walled I beams : 1D Model vs Shell FEA” Computers and Structures, 85 pp. 1343 - 1339, 2007
• 9. Liliana Marques et. Al., “Rayleigh Ritz procedure for the determination of the critical load of tapered columns”, Steel and Composite Structures, Vol 16 No.1 pp 45-58 (2014)
• 10. A.R.Rahai et. al., “Buckling Analysis of non-prismatic columns based on modified vibration modes”, Communication in Nonlinear Science and Numerical Simulation, 13, pp 1721-1735 (2008)
• 11. Ioannis G. Raftoyiannis et. al.,“Critical lateral – Torsional Buckling Moments of Steel Web – Tapered I – Beams”, The open Construction and Building Technology Journal, 4, pp 105-1122010 (2010)
• 12. IS 800:2007, Indian Standard General Construction In Steel — Code Of Practice
• 13. SP: 6 – (1) 1964, Handbook for Structural Engineers
• 14. Eurocode 3 - Design of steel structures - Part 1-3: General rules - Supplementary rules for cold-formed members and sheeting.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).