TY - GEN
T1 - Seismic stability response of columns in multi-tiered braced steel frames for industrial applications
AU - Imanpour, Ali
AU - Stoakes, Christopher
AU - Tremblay, Robert
AU - Fahnestock, Larry
AU - Davaran, Ali
PY - 2013/10/17
Y1 - 2013/10/17
N2 - This paper presents a study on the seismic response of multi-tiered, braced steel frames. The seismic demand and stability of the columns in a 4-tiered special X-braced frame structure located in a high seismic area and designed according to current AISC seismic provisions is evaluated. The drift demand in the individual bracing tiers and the combined column axial force and in-plane flexural demand are evaluated through nonlinear time history analysis. Detailed finite element analysis of one column under demands extracted from time history analysis is carried out to investigate the buckling response of the column. The results show that high in-plane bending demand is induced in the columns. Flexural yielding caused by non-uniform tier drift demand may detrimentally affect the torsional-flexural stability of the columns.
AB - This paper presents a study on the seismic response of multi-tiered, braced steel frames. The seismic demand and stability of the columns in a 4-tiered special X-braced frame structure located in a high seismic area and designed according to current AISC seismic provisions is evaluated. The drift demand in the individual bracing tiers and the combined column axial force and in-plane flexural demand are evaluated through nonlinear time history analysis. Detailed finite element analysis of one column under demands extracted from time history analysis is carried out to investigate the buckling response of the column. The results show that high in-plane bending demand is induced in the columns. Flexural yielding caused by non-uniform tier drift demand may detrimentally affect the torsional-flexural stability of the columns.
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M3 - Conference contribution
AN - SCOPUS:84885411796
SN - 9780784412848
T3 - Structures Congress 2013: Bridging Your Passion with Your Profession - Proceedings of the 2013 Structures Congress
SP - 2650
EP - 2661
BT - Structures Congress 2013
T2 - Structures Congress 2013: Bridging Your Passion with Your Profession
Y2 - 2 May 2013 through 4 May 2013
ER -