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A platform for research: civil engineering, architecture and urbanism
Dynamic P‐Δ effects for multistorey steel columns in long‐span tube‐in‐tube tall buildings
10.1002/tal.288.abs
An Euler–Bernoulli beam–column model is employed to investigate the dynamic P‐Δ effects of steel columns located at the external tube of a long‐span tube‐in‐tube tall building. A steel column with multistorey lateral open‐web beam supports is modelled as a beam–column element supported by elastic springs, from which a governing partial differential equation is established for the vibration of the column subjected to an axial compression force, lateral beam forces and base excitations. The problem is solved by a modal superposition method for both transient and steady‐state solutions. A numerical example is illustrated and the results indicate that the secondary moment of a steel column induced from dynamic multistorey P‐Δ effects is essential and should not be ignored in a practical design. The influences of the factors including flexural rigidity of the column, axial stiffness of the open‐web beams and the magnitude of the compressive axial force are discussed. Copyright © 2005 John Wiley & Sons, Ltd.
Dynamic P‐Δ effects for multistorey steel columns in long‐span tube‐in‐tube tall buildings
10.1002/tal.288.abs
An Euler–Bernoulli beam–column model is employed to investigate the dynamic P‐Δ effects of steel columns located at the external tube of a long‐span tube‐in‐tube tall building. A steel column with multistorey lateral open‐web beam supports is modelled as a beam–column element supported by elastic springs, from which a governing partial differential equation is established for the vibration of the column subjected to an axial compression force, lateral beam forces and base excitations. The problem is solved by a modal superposition method for both transient and steady‐state solutions. A numerical example is illustrated and the results indicate that the secondary moment of a steel column induced from dynamic multistorey P‐Δ effects is essential and should not be ignored in a practical design. The influences of the factors including flexural rigidity of the column, axial stiffness of the open‐web beams and the magnitude of the compressive axial force are discussed. Copyright © 2005 John Wiley & Sons, Ltd.
Dynamic P‐Δ effects for multistorey steel columns in long‐span tube‐in‐tube tall buildings
Lee, Wen‐Hae (author) / Yu, Chau‐Cho (author) / Tung, Shih‐Heng (author)
The Structural Design of Tall and Special Buildings ; 15 ; 171-183
2006-06-01
13 pages
Article (Journal)
Electronic Resource
English
Dynamic P- effects for multistorey steel columns in long-span tube-in-tube tall buildings
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