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（內(nèi)蒙古科技大學(xué)土木工程學(xué)院， 包頭 014010）

［摘要］以受損裝配式短肢剪力墻作為研究對象，用新型外包鋼綜合法對其加固，通過低周往復(fù)荷載試驗研究試件加固后的抗震性能。試驗結(jié)果表明，對比原試件，加固后試件承載力有大幅度提升，其中極限荷載提高68%，屈服荷載提高55%；剛度也有明顯的增大，其中屈服剛度提高63-1%；極限位移提高30-4%，體現(xiàn)了良好的延性；且加固后試件耗能性能略強于原試件。綜合表明，新型外包鋼綜合加固法可有效提高受損裝配式短肢剪力墻的抗震性能。

［關(guān)鍵詞］裝配式短肢剪力墻； 受損加固； 抗震性能

中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)11-0028-05

Study on seismic behavior of reinforced damaged assembled short-leg shear wall

Liu Xiang, Xue Hongjie, Lü Peng

(College of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010， China)

Abstract: Taking the damaged assembled short-leg shear wall as the research object.After the reinforcement by the new outsourcing steel comprehensive method  the seismic performance of the strengthened specimens was studied by the low-cycle reciprocating load test. The test results show that, compared with the original specimens, the bearing capacity of the specimens after reinforcement has been greatly improved, including the ultimate load increased by 68%, and the yield load increased by 55%. The stiffness also increased significantly, including the yield stiffness increased by 63-1%, the ultimate displacement increased by 30-4%, which reflecting good ductility. The energy dissipation performance of the specimens after reinforcement is slightly stronger than that of the original specimens. It is concluded that new comprehensive reinforcement method with wrapped steel can effectively improve seismic performance of damaged assembled short-leg shear walls.

Keywords:assembled short-leg shear wall; damaged reinforcement; seismic resistance