000019266 001__ 19266
000019266 005__ 20170118182307.0
000019266 04107 $$aeng
000019266 046__ $$k2017-01-09
000019266 100__ $$aCamata, Guido
000019266 24500 $$aFinite Elements Vs. Frame-Equivalent Models for Urm Walls’ In-Plane Behaviour

000019266 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019266 260__ $$b
000019266 506__ $$arestricted
000019266 520__ $$2eng$$aAs a consequence of the large number of masonry buildings and their important historical value, there is an ongoing effort to investigate their structural behaviour. This has led to a continuous development of new methodologies and techniques applied to masonry structures, including an increasing application of non-linear analyses. The considerable computational effort required by detailed models, e.g. Finite Elements (FE) models, highlighted the need to develop simplified modelling procedures. In this context, the well-known Equivalent Frame Method (EFM) has become very successful. This simplified approach is based on the assumption that the behaviour of the masonry walls is modelled with a system of mono-dimensional beam elements (pier and spandrel panels). The great simplicity of implementation and interpretation of the results contributed to the widespread application of the method in both the scientific field and the professional practise. Despite the huge effort devoted to improve the effectiveness of the EFM, its application can be considered really effective only for new or existing regular buildings. For these structures, in fact, the presence of regular configurations and good connection between walls and floors guarantee a “box-like” behaviour under horizontal (e.g. seismic) loads. The “box like” system is a necessary requisite to obtain the in-plane behaviour of the masonry walls well described by EFM. This method is more difficult to apply to existing irregular buildings and, in particular, in the case of old structures in historical centres. In these cases, irregular geometry, the presence of deformable diaphragms and the interaction with other structures in aggregate configurations are critical issues for the reliability of Equivalent-Frame (EF) procedures. A comparison between EF and FE models is deemed useful for investigating some of these uncertainties and for exploring the reliability of EF procedures in the case of existing masonry buildings. In [1], a parametric investigation was performed for several types of masonry regular buildings with different geometrical configurations and for walls affected by geometrical irregularities. The effects of the presence of irregularities on EFM accuracy are presented in this paper.

000019266 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019266 653__ $$aMasonry, URM structures; Equivalent Frame method, Irregularity.

000019266 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019266 720__ $$aCamata, Guido$$iSepe, Vincenzo$$iSpacone, Enrico$$iRossella, Siano$$iFabregat, Pere Roca$$iPelà, Luca
000019266 8560_ $$ffischerc@itam.cas.cz
000019266 8564_ $$s1131099$$uhttps://invenio.itam.cas.cz/record/19266/files/3264.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3264.
000019266 962__ $$r16048
000019266 980__ $$aPAPER