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（廣西科技大學(xué)土木建筑工程學(xué)院， 柳州 545006）
［摘要］為研究CFRP預(yù)應(yīng)力混凝土棱柱體（CFRP-PCPs）復(fù)合筋混凝土連續(xù)梁的塑性性能，制備了6根CFRP-PCPs復(fù)合筋混凝土連續(xù)梁，并對(duì)其完成了單跨單點(diǎn)加載試驗(yàn)?？疾炝嗽囼?yàn)梁在加載過程中不同階段的受力特征。基于試驗(yàn)結(jié)果提出了承載力極限狀態(tài)下中支座控制截面左右兩側(cè)等效塑性鉸區(qū)長度計(jì)算公式。計(jì)算結(jié)果表明，所提出的計(jì)算公式的計(jì)算值與試驗(yàn)值吻合較好。
［關(guān)鍵詞］CFRP-PCPs復(fù)合筋； 連續(xù)梁； 內(nèi)力重分布； 等效塑性鉸區(qū)長度
中圖分類號(hào)：TU375-4文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)15-0037-05
Experimental study on plastic property of composite reinforced concrete continuous beams with CFRP-PCPs
Deng Yu， Mou Xiaohui， Zhang Peng， Liu Wenbing， Zhong Qingyu
（College of Civil Engineering and Architecture, Guangxi University of Science and Technology, Liuzhou 545006, China）
Abstract:In order to investigate the plastic property of composite reinforced concrete continuous beams with carbon fibre reinforced plastics prestressed concrete prisms (CFRP-PCPs), 6 composite reinforced concrete continuous beams with CFRP-PCPs were fabricated and tested with one point load applied at each mid-span. During the test, the mechanical behaviors of the beams in the different stages of the loading process were investigated. Based on the test results, the calculation formula of length of equivalent plastic hinge zone at left and right sides of controlling section of the middle bearing under the limit state of bearing capacity was presented. The calculated results show good agreement between the calculated and experimental results.
Keywords:CFRP-PCPs composite bar; continuous beam; internal force redistribution; length of equivalent plastic hinge zone
*國家自然科學(xué)基金項(xiàng)目（51168006），廣西高校科學(xué)技術(shù)研究重點(diǎn)項(xiàng)目（ZD2014076），廣西自然科學(xué)基金項(xiàng)目（2015GXNSFAA139263），柳州市科學(xué)研究與技術(shù)開發(fā)計(jì)劃項(xiàng)目（2014B020204)，廣西工學(xué)院自然科學(xué)基金項(xiàng)目（院科自1074018）。
作者簡介：鄧宇，博士，副教授，Email：dy261@163.com。
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