Analysis of spatial real buildings by discrete force method

Nadjai, Ali; Johnson, David

doi:10.1002/(sici)1099-1794(199609)5:3<183::aid-tal72>3.0.co;2-5

Cited by 2 publications

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References 9 publications

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“…The method has been developed further for the elastic and elastoplastic analysis of planar coupled shear walls with flexible bases. [10][11][12][13] The method involves the assumption that there are contraflexural points at the midpoints of beams connecting co-planar walls and at the junctions of non-planar walls or non-planar beam=wall intersections (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Soil-Structure Interaction in Tall Buildings by a Discrete Force Method.

Nadjai

Johnson²

1999

Proceedings of the Institution of Civil Engineers - Structures

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The importance of base flexibility on the elasto-plastic behaviour of spatial shear walls subjected to any type of loading was examined. An analysis of elasto-plastic spatial shear walls was developed using a discrete force method, which models the shear walls as a system of interconnected discrete structural elements and the base flexibility by effective rotational and vertical elastic stiffnesses K b and K v , respectively. As the magnitudes of these stiffnesses depend on the properties of the supporting soil and also on the characteristics of the foundation itself, different soils were considered. The analysis was based on the force approach, using as redundants the shear forces, not only at the contraflexural points of the connecting beams, but also at wall junctions. The elasto-plastic condition was restricted to the connecting beams by using a convenient bilinear model for the force formulation. The objective was to provide a theoretical treatment of the foundation-structure interaction that is suitable for implementation in the discrete force method. In addition, the results obtained in the discrete force modelling of the soil interaction are presented, and the applicability of the model to some representative problems is discussed.

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Section: Introductionmentioning

confidence: 99%

Soil-Structure Interaction in Tall Buildings by a Discrete Force Method.

Nadjai

Johnson²

1999

Proceedings of the Institution of Civil Engineers - Structures

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Torsion in tall buildings by a discrete force method

Nadjai

Johnson

1998

Struct. Design Tall Build.

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An analytical solution is presented for analysing the torsional deformation of complicated core wall structures subjected to applied torque. The method adopted in this paper, which is an iterative procedure incorporating the wall element torsional stiffness, is found to be effective. The efficiency and versatility of the discrete method are illustrated by application of the technique to the analysis of complex wall systems. The method is compared with experimental data, Bredt's theory, finite element analysis, and the wide column frame analogy. © 1998 John Wiley & Sons, Ltd.

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Analysis of spatial real buildings by discrete force method

Cited by 2 publications

References 9 publications

Soil-Structure Interaction in Tall Buildings by a Discrete Force Method.

Soil-Structure Interaction in Tall Buildings by a Discrete Force Method.

Torsion in tall buildings by a discrete force method

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