Rotation capacities of reduced beam section with bolted web (RBS-B) connections
- Authors
- Han, Sang Whan; Moon, Ki-Hoon; Hwang, Seong-Hoon; Stojadinovic, Bozidar
- Issue Date
- Mar-2012
- Publisher
- Elsevier BV
- Keywords
- Reduced beam section connectionMoment framesBolted webRotationFracture
- Citation
- Journal of Constructional Steel Research, v.70, pp.256 - 263
- Journal Title
- Journal of Constructional Steel Research
- Volume
- 70
- Start Page
- 256
- End Page
- 263
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/20407
- DOI
- 10.1016/j.jcsr.2011.09.001
- ISSN
- 0143-974X
- Abstract
- Current seismic design provisions (ANSI/AISC 358-05) permit reduced beam section with bolted web (RBS-B) connections for only intermediate moment frames (IMF). The connections in IMF systems should provide at least 2% radian of total rotation. Prior research, however, has reported that some RBS-B connection specimens failed by connection fracture prior to reaching the 2% radian rotation. To design RBS-B connections with rotation capacities greater than 2% radian, we calibrated the moment strength equation specified in ANSI/AISC 358-05 to account for the contribution of bolted web connections. To detect and repair RBS-B connections that are unable to provide rotation capacities greater than 2% radian in existing IMF systems, we also developed an empirical equation that estimates the total rotation capacities of such RBS-B connections. Finally, we present a procedure to design RBS-B connections without connection fracture for new building systems, and to estimate the probability of RBS-B connections to develop rotation capacities larger than 2% radian for existing IMF systems. (C) 2011 Elsevier Ltd. All rights reserved.
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