000018555 001__ 18555
000018555 005__ 20170118182228.0
000018555 04107 $$aeng
000018555 046__ $$k2017-01-09
000018555 100__ $$aHuang, Qunxian
000018555 24500 $$aReinforced Concrete Exterior Wide Beam-Column Joints Under Earthquake-Type Loading

000018555 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018555 260__ $$b
000018555 506__ $$arestricted
000018555 520__ $$2eng$$aThe seismic behaviour of reinforced concrete (RC) exterior wide and conventional beam-column joints was investigated through experimental and computational simulation. Two full-scale specimens were designed, constructed and tested under reversed quasi-static cyclic loading. Specimens had the beam-width to column-width ratios of 1 and 1.5, representing the conventional and wide beam-column connections and were designed in conformance with ACI 318-14 and ACI 352-R02. Seismic performance of the connections was evaluated based on the results obtained from the experiments, such as crack pattern, hysteresis response, ductility ratio, and the strain profiles of the longitudinal and transverse reinforcement of specimens. The results indicated that both specimens were capable of supporting the complete formation of beam plastic hinges with no major cracks in the joint region. Both specimens attained their negative and positive design strengths at a drift level of 1.1%. Computer simulations with a 3D nonlinear finite element model (FEM) using ABAQUS were carried out. Two sets of results from the experiment and computer simulation were compared, and good agreement was found. The calibrated FEM was then used to investigate the role of the transverse reinforcement in the joint region. Experimental and numerical verification showed that both conventional and wide beam-column joints designed with the current design procedure recommended in ACI can perform well in carrying the horizontal lateral loads. A parametric study using FEM indicated that minimum amount of the joint transverse reinforcement recommended by ACI code is an acceptable limit in both conventional and wide beam-column joint. Providing additional joint transverse reinforcement will not increase the joint shear strength, but it causes difficulties in construction of the wide beam-column connections.

000018555 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018555 653__ $$awide beam-column joint; computational simulation; full-scale specimens; cyclic loading; hysteresis response.

000018555 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018555 720__ $$aHuang, Qunxian$$iKuang, J.S.$$iBehnam, Hamdolah
000018555 8560_ $$ffischerc@itam.cas.cz
000018555 8564_ $$s1270227$$uhttps://invenio.itam.cas.cz/record/18555/files/1694.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1694.
000018555 962__ $$r16048
000018555 980__ $$aPAPER