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(遼寧工程技術(shù)大學(xué)土木工程學(xué)院， 阜新 123000)

［摘要］為了探究采空區(qū)地震耦合作用下碳纖維加固對(duì)框架結(jié)構(gòu)的抗震、抗傾斜能力的影響，設(shè)計(jì)了三種工況，分別對(duì)應(yīng)框架結(jié)構(gòu)傾斜2，4，6mm/m?；诮Y(jié)構(gòu)動(dòng)力學(xué)和相似理論，制作了縮尺比為1/10的框架結(jié)構(gòu)模型，并用碳纖維對(duì)其梁端和柱端加固。通過(guò)對(duì)未加固結(jié)構(gòu)和加固結(jié)構(gòu)進(jìn)行振動(dòng)臺(tái)試驗(yàn)，分別對(duì)結(jié)構(gòu)的動(dòng)力特性、地震反應(yīng)等情況進(jìn)行對(duì)比分析研究。結(jié)果表明：碳纖維加固有效地約束了結(jié)構(gòu)的變形，使結(jié)構(gòu)層間位移、層間位移角及頂點(diǎn)位移明顯減小，結(jié)構(gòu)的延性得到優(yōu)化；碳纖維加固提高了結(jié)構(gòu)的整體剛度和抗側(cè)能力，延緩了剛度的退化，提高了結(jié)構(gòu)的抗震、抗傾斜能力。同時(shí)，也體現(xiàn)了碳纖維加固的有效性。 

［關(guān)鍵詞］碳纖維加固； 框架結(jié)構(gòu)； 振動(dòng)臺(tái)試驗(yàn)； 采空區(qū)； 抗震； 抗傾斜 

中圖分類號(hào)：TU317+.1 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)11-0119-05

Shaking table test study on carbon fiber reinforced frame structure subjected to seismic coupling in goaf

LIU  Shuxian,  WANG  Shuai,  LU  Shasha,  LIU  Shaodong 

(Department of Civil Engineering, Liaoning Technical University， Fuxin 123000， China) 

Abstract: In order to explore the influence of carbon fiber reinforcement on the anti-seismic and anti-tilt ability of the frame structure under the seismic coupling in goaf, three working conditions were designed, corresponding to the tilt of the frame structure by 2, 4, and 6mm/m respectively. Based on the structural dynamics and similarity theory, the frame structure model with a scale ratio of 1/10 was made, and carbon fiber was used to strengthen the beam end and the column end. Through the shaking table test of the unreinforced structure and the reinforced structure, the dynamic characteristics and seismic response of the structure were compared and analyzed. The results show that the carbon fiber reinforcement effectively restrains the deformation of the structure, and the inter-layer displacement, inter-layer displacement angle and vertex displacement of the structure are significantly reduced, and the ductility of the structure is optimized. Carbon fiber reinforcement improves the overall stiffness and lateral resistance of the structure, delays the degradation of stiffness, and improves the anti-seismic and anti-tilt ability of the structure. At the same time, it also reflects the effectiveness of carbon fiber reinforcement. 

Keywords:carbon fiber reinforcement； frame structure； shaking table test； goaf; anti-seismic; anti-tilt ability

*國(guó)家自然科學(xué)基金（51474045）。

 作者簡(jiǎn)介：劉書(shū)賢，博士，教授，博士生導(dǎo)師，Email:lgdliushuxian@163.com；通信作者：路沙沙，博士，碩士生導(dǎo)師，Email：lilyherb@163.com。