Inelastic Cyclic Testing of Welded Unreinforced Moment Connections
- 1 April 2002
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Structural Engineering
- Vol. 128 (4), 429-440
- https://doi.org/10.1061/(asce)0733-9445(2002)128:4(429)
Abstract
The results of an experimental study of the seismic performance of improved, welded unreinforced beam-to-column moment connections are presented. The study involved the inelastic cyclic testing of 11 full-scale connection specimens to evaluate the effects of weld access hole geometry, beam web attachment detail, panel zone strength, continuity plates, and composite slab on connection performance. With a high toughness weld metal and modified detailing, it is demonstrated that a welded unreinforced flange moment connection can reliably achieve an inelastic rotation of 0.03 rad or more prior to failure. The modified details include the use of a weld access hole with a modified geometry and a welded beam web. The test results indicate that a strong panel zone enhances inelastic connection performance. Based on the results of the study recommendations are given for the seismic-resistant design of improved welded unreinforced connections for steel moment-resisting frames.This publication has 4 references indexed in Scilit:
- Effect of Local Details on Ductility of Welded Moment ConnectionsJournal of Structural Engineering, 2001
- Parametric Tests on Unreinforced Steel Moment ConnectionsJournal of Structural Engineering, 2000
- A survey of steel moment-resisting frame buildings affected by the 1994 Northridge EarthquakePublished by National Institute of Standards and Technology (NIST) ,1995
- Seismic Behavior of Moment Connections and JointsJournal of the Structural Division, 1982