Finite Element Analyses of Pinned Precast Beam Column Connections

Author(s): Jaya Prakash Vemuri, Sahith Gali and Subramaniam Kolluru
Paper category: Proceedings
Book title: Proceedings of International Conferences (ICACMS) Advances in Construction Materials and systems Vol 2
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN: 978-2-35158-194-0
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 356-363
Total Pages: 8
Language : English

Abstract: Precast concrete structures are rapidly being adopted as an alternative to traditional cast-in-situ concrete buildings. In low rise precast structures, pinned connections using steel dowels have been traditionally used, especially to connect beams to columns. Recent earthquakes have exposed the vulnerability of such connections which experienced significant damage. Experimental tests on pinned connections are limited and consequently closed form codal equations to estimate pinned connection strength are lacking. In this paper, monotonic and cyclic behaviour of pinned beam column connections are examined using finite element analyses. Key failure modes such as breaking of the dowel, spalling of concrete in both the beam and column are observed. The yield strength of steel and compressive strength of concrete are the key parameters affecting strength. The cyclic hysteresis loops are observed to be asymmetric and exhibit significant pinching behaviour. There is a progressive loss in stiffness and a degradation of strength. Reverse cyclic loading causes significant decrease in the load carrying capacity when compared to the monotonic response.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00