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In-Plane Shear Performance of Masonry Walls after Strengthening by Two Different FRPs
| Title: | In-Plane Shear Performance of Masonry Walls after Strengthening by Two Different FRPs |
| Authors: | Rahman, Ataur Browse this author | | Ueda, Tamon Browse this author →KAKEN DB |
| Keywords: | Masonry | | Shear wall strengthening | | Carbon fiber-reinforced polymer (CFRP) and polyethylene terephthalate-FRP (PET-FRP) sheets | | Static shear test |
| Issue Date: | Oct-2016 |
| Publisher: | American Society of Civil Engineers (ASCE) |
| Journal Title: | Journal of composites for construction |
| Volume: | 20 |
| Issue: | 5 |
| Start Page: | 04016019 |
| Publisher DOI: | 10.1061/(ASCE)CC.1943-5614.0000661 |
| Abstract: | This experimental study was aimed to investigate the in-plane shear performance of externally strengthened masonry walls using two types of fiber-reinforced polymer (FRP) sheets, namely, carbon FRP (CFRP) and polyethylene terephthalate-FRP (PET-FRP) sheets. Among these two, PET-FRP has a low tensile strength but possess a higher fracturing strain than CFRP. Twelve masonry walls made from clay brick were tested for static lateral loading under constant compression, after bonding CFRP and PET-FRP sheets onto their surfaces in three different configurations. The ultimate shear strength and deformation at peak load were the two important observations. The mechanisms by which load was carried were observed, varying from the initial uncracked state to the final, fully cracked state. The results demonstrate that a significant increase in the in-plane shear capacity of masonry can be achieved by bonding these two FRPs to the surface of the walls but ductility is compromised when CFRP is used. Walls retrofitting with PET-FRP in a crossdiagonal fashion show a good ductile behavior in both prepeak and postpeak regimes. The experimental data were used to assess the effectiveness of the strengthening of one FRP over the other. PET-FRP in diagonal configuration was found to be the most effective way of strengthening without compromising the two most essential aspects of masonry, that is, strength and ductility. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/63553 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 上田 多門
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