000019519 001__ 19519
000019519 005__ 20170118182322.0
000019519 04107 $$aeng
000019519 046__ $$k2017-01-09
000019519 100__ $$aPohoryles, Daniel
000019519 24500 $$aThe Effect of Slab and Transverse Beams on the Behaviour of Full-Scale Pre-1970's RC Beam-Column Joints

000019519 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019519 260__ $$b
000019519 506__ $$arestricted
000019519 520__ $$2eng$$aPast research and empirical evidence has shown that beam-column joints play a critical role in the cyclic behaviour of reinforced concrete (RC) structures and that a good understanding of the complex mechanical interactions in beam-column connections is necessary to ensure the desired hierarchy of failure is achieved. Development of such understanding requires specifically designed numerical and experimental studies that depict realistic structures. However, reviews of published experimental literature show that most experimental studies on the seismic behaviour pre-1970’s RC beam-column connections focus on the testing of sub-assemblies without slabs or transverse beams, which are unrepresentative of reality. This paper presents the first part of a study being carried out to shed light on how (and by how much) slabs and transverse beams contribute to the seismic performance of gravity-designed interior beam-column connections, and the consequences of ignoring or wrongly representing this contribution. It presents the results of experiments on three full-scale beam-column joints. One of these test specimens is designed to Eurocode 8 and two are of typical pre-1970’s design, with one specimen containing a slab and transverse beams, whilst the other represents the typical cross-shaped specimen tested in many other studies. The paper also presents preliminary nonlinear three-dimensional finite element (FE) models to complement the experiments, and extend them to look at the case of a pre-1970’s specimen with transverse beams and no slab. As expected, the experimental and numerical results clearly demonstrate that the progression of damage and failure mechanisms in beamcolumn connections with and without slabs and transverse beams differ significantly. The experimental findings also generally confirm inferences from the limited published experimental evidence that the contribution of slabs and transverse beams can be underestimated by current guidelines. These observations have implications when considering common simplifications made in the numerical modelling of RC moment resisting frames when assessing their seismic performance.

000019519 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019519 653__ $$abeam-column joints, slabs, transverse beams, reinforced concrete, seismic behaviour

000019519 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019519 720__ $$aPohoryles, Daniel$$iMelo, Jose$$iVarum, Humberto$$iRossetto, Tiziana
000019519 8560_ $$ffischerc@itam.cas.cz
000019519 8564_ $$s536756$$uhttp://invenio.itam.cas.cz/record/19519/files/3826.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3826.
000019519 962__ $$r16048
000019519 980__ $$aPAPER