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Masonry Bearing and Shear Walls Retrofitted With Overlay Composite Material; Final rept
| 题名： | Masonry Bearing and Shear Walls Retrofitted With Overlay Composite Material; Final rept |
| 作者： | Al-Chaar, G.; Hasan, H. A. |
| 关键词： | Composite materials; Earthquake resistant structures; Vulnerability; Retrofitting |
| 摘要： | Unreinforced masonry bearing and shear walls common in the Tennessee Valley Authority's (TVA's) switch-house structures have been found to be vulnerable to earthquakes. One technique to reduce the seismic vulnerability of these structures is to retrofit the masonry walls using the Hexcel-Fyfe TYFO(TM) system. This system consists of a glass fiber fabric combined with special epoxies to create a high strength, lightweight structural laminate. Hexcel-Fyfe TYFO(TM) can be designed to work in conjunction with existing walls to increase both the in-plane and out-of-plane seismic strength of the unreinforced masonry walls. To ensure that this technique will perform its intended purpose, the U.S. Army Construction Engineering Research Laboratories (USACERL) and TVA conducted seismic analysis and shake-table seismic testing using USACERL's Triaxial Earthquake and Shock Simulator. The results of seismic testing documented in this report show that applying the overlay material to one side of the unreinforced masonry wall will enhance its seismic resistance. |
| 总页数： | 197p |
| 报告类型： | 科技报告 |
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