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(東南大學混凝土及預應力混凝土結(jié)構(gòu)教育部重點實驗室,南京210018)
[摘要] 震后可修復性在現(xiàn)代基于性能的抗震設(shè)計方法研究中占有重要地位,而殘余位移是評價結(jié)構(gòu)可修復性的重要指標,但是傳統(tǒng)RC結(jié)構(gòu)由于其固有的缺點并不能完全滿足可修復性要求。本文介紹了國內(nèi)外關(guān)于殘余位移的研究現(xiàn)狀,并且介紹了幾種常見的提升結(jié)構(gòu)可修復性技術(shù),其中重點介紹了正在研究的利用FRP材料提升新建建筑和已有建筑可修復性技術(shù)。
[關(guān)鍵詞] 抗震設(shè)計;可修復性;殘余位移;無粘結(jié)預應力;FRP材料
中圖分類號:TU352.1 文獻標識碼:A 文章編號:1002-848X(2013)S1-1254-04
Research on structures’ reparability based on post-earthquake residual deformation
Hao Jianbing, Wu Gang, Wu Zhishen
(Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210018, China)
Abstract: Structures’ post-earthquake reparability occupies an very important role in modern performance-based seismic design and residual deformation is the one of the basic parameters to evaluate the reparability. However, traditional reinforced concrete structure cannot meet the reparability demands due to its intrinsic defects. This paper makes a state-of-art review about residual deformation and introduces several techniques, especially focuses on using of FRP material to enhancing reparability of both new and existing building.
Keywords: seismic design; reparability; residual deformation; unbonded prestress technology; FRP material