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Influence coefficient expressions are developed in matrix form for all section forces of an arch. The influence coefficients include the effects of the vertical and horizontal displacements of the arch axis and, of course, the effects of bending and shear deformations and rib shortening. Temperature and inelasticity effects are referred to correction terms. The practical usefulness of this method is based largely on the fact that total horizontal force is selected for “iteration parameter.” Iterations often become superfluous because live load variations and arch displacements exert little influence on this parameter.
Influence coefficient expressions are developed in matrix form for all section forces of an arch. The influence coefficients include the effects of the vertical and horizontal displacements of the arch axis and, of course, the effects of bending and shear deformations and rib shortening. Temperature and inelasticity effects are referred to correction terms. The practical usefulness of this method is based largely on the fact that total horizontal force is selected for “iteration parameter.” Iterations often become superfluous because live load variations and arch displacements exert little influence on this parameter.
Deflection Theory of Arches
Asplund, Sven Olof (author)
Transactions of the American Society of Civil Engineers ; 128 ; 307-331
2021-01-01
251963-01-01 pages
Article (Journal)
Electronic Resource
Unknown
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