000021574 001__ 21574
000021574 005__ 20170622131253.0
000021574 04107 $$aeng
000021574 046__ $$k2017-06-15
000021574 100__ $$aBarsotti, Riccardo
000021574 24500 $$aSCALE MODELS FOR THE EXPERIMENTAL ANALYSIS OF THE COLLAPSE MECHANISMS OF MASONRY BAY WINDOWS UNDER HORIZONTAL ACTIONS

000021574 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021574 260__ $$bNational Technical University of Athens, 2017
000021574 506__ $$arestricted
000021574 520__ $$2eng$$aThe present contribution illustrates a first set of results obtained within the framework of currently on-going research aimed at evaluating the seismic vulnerability of masonry buildings in Boston’s Back Bay area. In particular, the study focuses on the collapse mechanisms of "bay windows", a typical late 19th century architectural element of the Victorian style that characterizes the facades of Back Bay’s old buildings. With the aim of investigating the main features of bay windows response to horizontal loads, the analysis is focused on a single bay window considering it isolated from the rest of the building and resting on a rigid basement. A series of experimental tests has been conducted on five scale-model bay windows of varying height free from openings. A system of horizontal actions proportional to the model mass density distribution has been imposed during the test by placing the model on a "tilting-table". The recordings of two digital video cameras allowed the identification of the collapse mechanisms. The results obtained are described in terms of determination of the horizontal loads collapse multiplier and identification of the actual collapse mechanisms. In addition, a first interpretation of the experimental results is provided by means of some simple mechanical schemes that use the typical tools of limit analysis. The agreement between experimental and theoretical results is more than satisfactory, and the proposed theoretical schemes seem able to provide useful information for assessing the mechanical response of bay windows.

000021574 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021574 653__ $$aMasonry, Bay windows, Limit analysis, Scale models.

000021574 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021574 720__ $$aBarsotti, Riccardo$$iTirabasso, Claudio$$iOchsendorf, John A.$$iBennati, Stefano
000021574 8560_ $$ffischerc@itam.cas.cz
000021574 8564_ $$s4875722$$uhttps://invenio.itam.cas.cz/record/21574/files/17065.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS08] Seismic Safety Assessment of Structures
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000021574 962__ $$r21500
000021574 980__ $$aPAPER