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신명수

Shin, Myoungsu
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Seismic toughness and failure mechanisms of reduced web-section beams: Phase 1 tests

Author(s)
Shin, MyoungsuKim, Seung-PilHalterman, ArneAschheim, Mark
Issued Date
2017-06
DOI
10.1016/j.engstruct.2017.03.016
URI
https://scholarworks.unist.ac.kr/handle/201301/21834
Fulltext
http://www.sciencedirect.com/science/article/pii/S0141029617308246
Citation
ENGINEERING STRUCTURES, v.141, pp.198 - 216
Abstract
Avoiding fracture in the beam-column connections of steel moment frames is critical to their seismic performance. Both Reduced Web Section (RWS) and Reduced Beam Section (RBS) methods apply the capacity design principle to shift the location of yielding into the beam and away from the beam-column connection. In the RWS approach, large openings are introduced into the web of the beam, so that the arrangement and configuration of the openings determine the mode of inelastic mechanism that develops within the beam. In this paper, experimental and numerical results are discussed for five RWS specimens that were subjected to reversed cyclic displacements. Also, the concept and potential inelastic modes of RWS beams are introduced, and beam shear equations corresponding to the assumed plastic mechanisms are derived. Of the five specimens, one had only two openings close to the beam-column connections, while the others had multiple openings distributed over the beam span. Most of the specimens exhibited stable hysteretic behavior up to approximately 6% story drift.
Publisher
ELSEVIER SCI LTD
ISSN
0141-0296
Keyword (Author)
Reduced web-section beamBeam-column connectionSteel moment frameSeismic behavior
Keyword
STEEL MOMENT CONNECTIONSSHEAR

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