Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of inelastic soil deformations on forces in crossed-strip foundations
Conclusions 1. Strip foundations on soils having slump-type settlements and on undermined territories should be designed with an increased pressure on the soil, which leads to a more intense redistribution of the contact pressures and to a decrease of bending moments in the case of slumping. In all cases, it is necessary to take into account residual deformations of the soil, otherwise the effect of reducing the bending moments is exaggerated and, accordingly, the reliability of the structure decreases. 2. Replacement of the p-s diagram having two explicitly expressed segments by a bilinear diagram can be used for developing engineering methods of calculation. The programs developed can also be used for calculating slabs on a nonlinear inelastic bed, with replacement of the slab by a crossed system of beams. In this case, the flexural and torsional rigidities of the replacing beams should be taken equal to Db, where D is the cylindrical rigidity of the slab and b is the width of the band being replaced. 3. Consideration of nonlinear deformation of soils leads to a substantial decrease of forces in foundations. In the calculations performed, the decrease of the maximum values of the bending moments was 30%.
Effect of inelastic soil deformations on forces in crossed-strip foundations
Conclusions 1. Strip foundations on soils having slump-type settlements and on undermined territories should be designed with an increased pressure on the soil, which leads to a more intense redistribution of the contact pressures and to a decrease of bending moments in the case of slumping. In all cases, it is necessary to take into account residual deformations of the soil, otherwise the effect of reducing the bending moments is exaggerated and, accordingly, the reliability of the structure decreases. 2. Replacement of the p-s diagram having two explicitly expressed segments by a bilinear diagram can be used for developing engineering methods of calculation. The programs developed can also be used for calculating slabs on a nonlinear inelastic bed, with replacement of the slab by a crossed system of beams. In this case, the flexural and torsional rigidities of the replacing beams should be taken equal to Db, where D is the cylindrical rigidity of the slab and b is the width of the band being replaced. 3. Consideration of nonlinear deformation of soils leads to a substantial decrease of forces in foundations. In the calculations performed, the decrease of the maximum values of the bending moments was 30%.
Effect of inelastic soil deformations on forces in crossed-strip foundations
Obozov, V. I. (Autor:in)
1982
Aufsatz (Zeitschrift)
Englisch
Lokalklassifikation TIB:
770/6545/8000
BKL:
56.20
Ingenieurgeologie, Bodenmechanik
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