000021882 001__ 21882
000021882 005__ 20170622131309.0
000021882 04107 $$aeng
000021882 046__ $$k2017-06-15
000021882 100__ $$aMenna, Costantino
000021882 24500 $$aFIBRE-BASED SECTIONAL ANALYSIS OF URM WALLS WITH SINGLE-SIDE FRCM STRENGTHENING

000021882 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021882 260__ $$bNational Technical University of Athens, 2017
000021882 506__ $$arestricted
000021882 520__ $$2eng$$aRecently, research community has shown a growing interest in inorganic matrix composite materials (referred to as Fiber Reinforced Cementitious Matrices, FRCMs, or Textile Reinforced Mortars, TRMs, or Inorganic Matrix-Grid composites, IMGs) as an effective solution for external strengthening of existing masonry walls. Such composites are typically made of a composite grid immersed in an inorganic mortar, making their mechanical behavior different from conventional fiber reinforced polymers, FRPs. While the in-plane behavior of unreinforced masonry (URM) walls strengthened with FRCM systems has been investigated through extensive experimental campaigns and numerical approaches, a comprehensive understanding of the out-of-plane behavior is still lacking, with particular reference to failure modes, analytical formulations and effects of different FRCM strengthening systems. In the present work, the available experimental outcomes on the out-of-plane behavior of strengthened URM walls are firstly collected, encompassing different URM types, eccentric load applications, FRCM strengthening systems. Then, a fiber-based sectional model of URM walls with single-side FRCM strengthening is proposed and validated with proper experiments. The tensile behavior of FRCM systems is modelled considering different characteristic phenomena of such materials, i.e. matrix cracking and fiber sliding. The results of the fiber-based analysis are in good agreement with experiments.

000021882 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021882 653__ $$aStructural retrofit, FRCM, masonry, sectional analysis.

000021882 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021882 720__ $$aMenna, Costantino$$iProta, Andrea$$iParisi, Fulvio
000021882 8560_ $$ffischerc@itam.cas.cz
000021882 8564_ $$s1244129$$uhttps://invenio.itam.cas.cz/record/21882/files/18215.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS27] Advanced numerical methods for historical masonry monuments preservation in seismic zone
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000021882 962__ $$r21500
000021882 980__ $$aPAPER