- 摘 要
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（1 重慶大學(xué)土木工程學(xué)院， 重慶 400045； 2 山地城鎮(zhèn)建設(shè)與新技術(shù)教育部重點實驗室(重慶大學(xué))， 重慶 400045； 3 成都基準(zhǔn)方中建筑設(shè)計有限公司重慶分公司， 重慶 401120; 4 中冶賽迪工程技術(shù)股份有限公司， 重慶 401122）
［摘要］首次提出了直接剪切型錨栓鋼板加固體系的概念，其技術(shù)特征在于可以消除錨栓桿與鋼板安裝孔壁之間的間隙，最大限度保證群錨的協(xié)同受力。完成了4根鋼筋混凝土試件抗彎承載力的對比試驗。試驗結(jié)果表明，所有加固試件的錨栓均未出現(xiàn)剪斷現(xiàn)象，鋼板受拉屈服，與對比試件相比受彎承載力提高120%，且加固試件具有良好的延性。
［關(guān)鍵詞］直接剪切型錨栓鋼板； 加固； 受彎承載力
中圖分類號：TU398文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)18-0088-05
Experimental study on flexural capacity of concrete beams strengthened by direct-shear-bolted steel plate
Quan Xueyou1,2, Deng Yang1,2, Liu Hui3, Zhang Peng4, Liu Bao1,2, Liu Lianjie1,2
(1 School of Civil Engineering, Chongqing University，Chongqing 400045, China; 2 Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education, Chongqing 400045, China; 3 Chongqing Branch, Chengdu FZFZ Architectural Design Co., Ltd., Chongqing 401120, China; 4 CISDI Engineering Co., Ltd., Chongqing 401122, China)
Abstract:The concept of direct-shear-bolted steel plate strengthening system is initially proposed, in which the usually existed clearance between bolt shaft and the sidewall of hole on steel plate for installing anchors is eliminated, so that the compatibility of anchor group is secured to the extreme extent. A comparative test series of flexural capacity which consists of four reinforced concrete beam specimens was carried out. The test results show that bolts hadn′t been fractured for all strengthened specimens, tension steel plates had been yielded, flexural capacities of all strengthened specimens had been increased 120% compared with the contrast specimen, and excellent ductility for all strengthened specimens had been achieved.
Keywords:direct-shear-bolted steel plate; strengthen; flexural capacity
作者簡介：全學(xué)友，博士，教授，博士生導(dǎo)師，Email:quanxueyou@163.com。
