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Seismic Performance of Buildings with Special Steel Moment Frames Using Modified End Plate and Shear Plate Connections
| 题名： | Seismic Performance of Buildings with Special Steel Moment Frames Using Modified End Plate and Shear Plate Connections |
| 正文语种： | eng |
| 作者： | Judd, Johnn;Pryor, Steven;Chi, Brandon |
| 作者单位： | Brigham Young Univ Dept Civil & Environm Engn EB 430 Provo UT 84602 USA;Simpson Strong Tie Co Inc Innovat 5956 W Las Positas Blvd Pleasanton CA 94588 USA;Simpson Strong Tie Co Inc 5956 W Las Positas Blvd Pleasanton CA 94588 USA |
| 关键词： | Steel moment frames;Prequalified connections for special steel moment frames;FEMA P-695;FEMA P-58;Performance-based seismic engineering |
| 摘要： | Nonlinear response history analyses were conducted to determine the seismic collapse safety and seismic performance of buildings with special steel moment frames using Simpson Strong-Tie Strong-Frame moment frames compared to equivalent buildings using reduced beam section (RBS) moment frames. The Strong-Frame moment connection consists of a modified T-stub or end plate connection incorporating Yield-Link structural fuses for moment transfer, and a modified shear plate connection for shear transfer. Archetypical 4-story, 8-story, 12-story, and 20-story steel frame buildings designed using ASCE 7-16 were evaluated. The results indicate that the Strong-Frame buildings have a 36% larger adjusted collapse margin ratio and are less likely to collapse, compared to the RBS buildings. The Strong-Frame buildings also have lower probable repair costs and shorter repair time compared to the RBS buildings. The improved collapse safety and enhanced performance of the Strong-Frame buildings are attributed to the stronger column web panel zone, inclusion of column bending moments in seismic overstrength load combinations, delayed connection strength degradation, a distributed global collapse mechanism, and replaceable connection components. |
| 出版年： | 2022 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 148 |
| 期： | 3 |
| 页码： | 04021300.1-04021300.14 |
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