000009450 001__ 9450
000009450 005__ 20141205150207.0
000009450 04107 $$aeng
000009450 046__ $$k2008-10-12
000009450 100__ $$aAugenti, N.
000009450 24500 $$aThree-Dimensional Seismic Analysis of Masonry Combined Systems

000009450 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009450 260__ $$b
000009450 506__ $$arestricted
000009450 520__ $$2eng$$aRecent numerical analyses on some types of planar Masonry Combined Systems (MCSs) showed a great variability of the lateral stiffness along the height, following to the mutual interaction between different parallel structural elements. This may induce significant eccentricities between centre of mass and centre of rigidity, in addition to the ones potentially due to U-shaped walls placed at the perimeter of the building or to irregular in-plan frame-wall dual systems. The mixed structure of the building becomes dramatically prone to damage due to twist-induced displacements, so a 3D seismic analysis is required to account for its torsional response. In this paper a matrix algorithm for seismic analysis of structural systems formed by masonry or Reinforced Concrete (RC) shear walls (with or without openings), frames and structural cores, is proposed. Such lateral load-resisting elements are considered to be arbitrarily arranged in plan and subjected to a generic pattern of horizontal forces. The torsional stiffness matrix of the cores is built up by means of the non-uniform torsion theory and the stiffness matrix of the whole mixed structure is subsequently defined. The presented analytical formulation provides a good prediction of the seismic behaviour of torsionally eccentric buildings with MCSs, and allow to evaluate strength and displacement demands.

000009450 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009450 653__ $$aMasonry Combined Systems, 3D seismic analysis, non-uniform torsion theory.

000009450 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009450 720__ $$aAugenti, N.$$iParisi, F.
000009450 8560_ $$ffischerc@itam.cas.cz
000009450 8564_ $$s309736$$uhttps://invenio.itam.cas.cz/record/9450/files/05-04-0010.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-04-0010.
000009450 962__ $$r9324
000009450 980__ $$aPAPER