000002966 001__ 2966
000002966 005__ 20141118153413.0
000002966 04107 $$acze
000002966 046__ $$k2010-09-22
000002966 100__ $$aNeuwald-Burg, C.
000002966 24500 $$aProblems in the assessment of the stress-strain relationship of masonry

000002966 24630 $$n2.$$pHistoric Mortars and RILEM TC 203-RHM Final Workshop
000002966 260__ $$bRILEM Publications s.a.r.l., 157 rue des Blains F-92220 Bagneux - France
000002966 506__ $$arestricted
000002966 520__ $$2eng$$aIn restoration or repair of old buildings the correct estimation of the stress-strain-relationship of the existing structure is an important task. Masonry stiffness is crucial for the load bearing behaviour of a structure. It is common practise to evaluate the masonry stiffness from the compressive strength in lack of detailed investigations. This paper illustrates the danger of this approach in two case studies. The first example is a stone bridge upon the main. The thickness of the mortar joints in this construction allowed sampling of mortars suitable for direct testing of the stress-strain-relationship under uniaxial compression. Thus it was possible to calculate the masonry stiffness from the measured elastic modulus of stone and mortar. It became evident, that a first rough estimation according to the building standard would not have been safe. In a second case study dealing with masonry pillars it is shown that the quality of mortar samples is influenced by the situation of the specimen in the section.

000002966 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002966 653__ $$a

000002966 7112_ $$a2nd Conference and of the Final Workshop of RILEM TC 203-RHM$$cPrague (CZ)$$d2010-09-22 / 2010-09-24$$gHMC2010
000002966 720__ $$aNeuwald-Burg, C.$$iPfeifer, M.
000002966 8560_ $$ffischerc@itam.cas.cz
000002966 8564_ $$s347601$$uhttps://invenio.itam.cas.cz/record/2966/files/page_0537.pdf$$y
             Original version of the author's contribution as presented on CD, , page 537.
            
000002966 962__ $$r2907
000002966 980__ $$aPAPER