000018739 001__ 18739
000018739 005__ 20170118182239.0
000018739 04107 $$aeng
000018739 046__ $$k2017-01-09
000018739 100__ $$aArteta, Carlos A.
000018739 24500 $$aGlobal and Local Demand Limits of Very Thin Reinforced Concrete Structural Wall Building Systems

000018739 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018739 260__ $$b
000018739 506__ $$arestricted
000018739 520__ $$2eng$$aIndustrialized construction system used in some Latin American countries are build based on elements which are of special interest because the geometry of their cross section, and layout of longitudinal reinforcement may facilitate the triggering of flexural-compression failures. This is so because of the excessive compressive demand on a thin-poorly-detailed web that arises due to seismic action. Given the large unsupported length of the web close to the critical section at the base, the extreme portions of these elements are also prone to lateral (out-of-plane) instability when subjected to cycling loading. This paper presents and analyzes a database of reinforced concrete thin-wall buildings representative of building archetypes in some countries in the southern hemisphere of the Americas. Variables of interest such as wall area index, fundamental period, flanged-wall cross section geometry, wall aspect ratio, reinforcing steel detailing, axial load ratio, building period, neutral axis depth, shear span ratio, among others, are analyzed in detail. A drift coupling factor is introduced to evaluate the impact of coupling of the surrounding system on individual walls. An archetype wall representative of the buildings in the database is selected by means of a multivariate statistical analysis. This prototype will serve as subject of laboratory testing. The paper also presents and discusses the results of a reversed-cyclic-loading experiments on a rectangular and T-shaped reinforced concrete thin-wall with aspect ratio of 3 and 3.7, respectively. The specimens are representative of the construction practice in intermediate seismic hazard areas in Colombia. Results suggest that this type of elements have limited ductility capacity, inferior to the expected behavior promoted by the building codes. Global and local deformation parameters from experimental data are discussed.

000018739 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018739 653__ $$abuilding database; reinforced concrete; thin flanged wall; reversed-cyclic loading.

000018739 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018739 720__ $$aArteta, Carlos A.$$iSanchez, Julio$$iBlandon, Carlos$$iBonett, Ricardo$$iJulian, Carrillo$$iDaza, Raul
000018739 8560_ $$ffischerc@itam.cas.cz
000018739 8564_ $$s1146645$$uhttps://invenio.itam.cas.cz/record/18739/files/2121.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2121.
000018739 962__ $$r16048
000018739 980__ $$aPAPER