【摘要】：研制了一種基于碳纖維傳感特性的自監(jiān)測(cè)智能TRC板,進(jìn)行智能TRC板抗彎性能試驗(yàn),檢驗(yàn)智能TRC板的應(yīng)變傳感性能;進(jìn)行智能TRC板加固RC梁抗彎性能試驗(yàn),研究智能TRC板加固RC梁抗彎力電性能。研究結(jié)果表明,通過(guò)TRC電阻變化率和應(yīng)變的關(guān)系,可以實(shí)現(xiàn)對(duì)TRC結(jié)構(gòu)裂縫的監(jiān)測(cè);智能TRC板電阻靈敏系數(shù)為20,比常用電阻應(yīng)變片靈敏系數(shù)大;加固梁荷載-位移曲線與荷載-電阻曲線基本吻合,智能TRC能夠有效地監(jiān)測(cè)試件受力損傷演化過(guò)程;智能TRC板加固RC結(jié)構(gòu),不僅能為結(jié)構(gòu)提供有效承載力和延性,還能為結(jié)構(gòu)在服役階段的安全性提供有效的監(jiān)測(cè)技術(shù),實(shí)現(xiàn)集高效結(jié)構(gòu)和實(shí)時(shí)結(jié)構(gòu)健康監(jiān)測(cè)于一體之目的。
[Abstract]:A self-monitoring intelligent TRC board based on carbon fiber sensing characteristics was developed to test the bending performance of intelligent TRC board and to test the strain sensing performance of intelligent TRC plate. The flexural properties of RC beams strengthened with intelligent TRC plates were tested and the flexural properties of RC beams strengthened with intelligent TRC plates were studied. The results show that the crack of TRC structure can be monitored by the relationship between the rate of change of TRC resistance and strain, and the sensitivity coefficient of resistance of intelligent TRC plate is 20, which is larger than that of common resistance strain gauge. The load-displacement curve agrees with the load-resistance curve, and intelligent TRC can effectively monitor the damage evolution process of the specimen. The intelligent TRC plate can not only provide the effective bearing capacity and ductility for the structure, but also provide an effective monitoring technology for the security of the structure in service stage, and realize the purpose of integrating efficient structure and real-time structural health monitoring.
【作者單位】： 鹽城工學(xué)院;南京工業(yè)大學(xué);
【基金】：江蘇省高校自然科學(xué)研究項(xiàng)目(14KJB560017) 住房和城鄉(xiāng)建設(shè)部研究開(kāi)發(fā)項(xiàng)目(2011-K1-64) 國(guó)家自然科學(xué)基金項(xiàng)目(50378018)
【分類號(hào)】：TU375.1

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