Springer Online Journal Archives 1860-2000
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Summary The safe load limit, a well defined parameter for columns made of linearly viscoelastic solid-type materials with limited creep, is generalized to materially and geometrically nonlinear viscoelastic structures. To illustrate the concepts to be treated, a simple rigid bar-spring/dashpot model simulating the behaviour of imperfect columns is analyzed in detail. Next the imperfect column problem is formulated and solved. Various approximations in the solution technique are introduced which allow relatively simple procedures for the evaluation of the safe load limit. Finally a column made of concrete is analyzed in detail for which the results are compared, where possible, with experimental data, a comparison which shows satisfactory agreement.
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