- 摘 要
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（1 福建省建筑科學(xué)研究院， 福州 350025； 2 福建省綠色建筑技術(shù)重點(diǎn)實(shí)驗(yàn)室， 福州 350025）
［摘要］對采用外包鋼加固的石梁進(jìn)行了正截面受彎承載力試驗(yàn)，分析了其受彎性能及其破壞特點(diǎn)。試驗(yàn)結(jié)果表明：外包鋼加固法能提高石梁的抗彎承載力，改善其受彎性能；角鋼錨固是石梁加固過程中的關(guān)鍵因素，對加固梁的承載力和延性性能有很大的影響。對加固梁的受彎承載力進(jìn)行了理論分析，并提出了實(shí)用計算公式。
［關(guān)鍵詞］石結(jié)構(gòu)； 石梁； 外包鋼； 加固； 彎曲試驗(yàn)
中圖分類號：TU363文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)21-0100-05
Experimental research and theoretical analysis on stone beams strengthened by external encased steel plate
Li Liangfeng1,2
(1 Fujian Academy of Building Research, Fuzhou 350025, China; 2 Fujian Key Laboratory of Green Building Technology, Fuzhou 350025, China)
Abstract:Flexural capacity experiment of normal section on the stone beams strengthened by external encased steel plate was conducted, to analyze the flexural behaviors and failure characteristics. The analysis results show that the stone beam strengthened by external encased steel plate can improve the flexural bearing capacity of stone，and has good flexural ductility. The anchoring of angle steel is a critical factor in strengthening process and it has a great influence on the bearing capacity and ductility of the strengthened beam. The theoretical analysis of the flexural capacity of the strengthened stone beams was conducted, and the practical calculation formula was puts forward.
Keywords:stone structure; stone beam; external encased steel; strengthen; flexural test
*福建省住房和城鄉(xiāng)建設(shè)廳科學(xué)技術(shù)項(xiàng)目（2016-K-50）。
作者簡介：李梁峰，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email:10060138@qq.com。
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