預(yù)制梁端與后澆混凝土結(jié)合面抗剪性能試驗(yàn)研究*
顏鋒1, 田春雨1, 郝瑋1, 高杰1, 譚宇昂2
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（1 建研科技股份有限公司, 北京 100013； 2 萬(wàn)科企業(yè)股份有限公司, 深圳 518083）
［摘要］對(duì)裝配式混凝土結(jié)構(gòu)中預(yù)制梁端與后澆混凝土的結(jié)合面抗剪性能進(jìn)行了試驗(yàn)研究。針對(duì)結(jié)合面的剪力鍵抗剪破壞、鋼筋銷栓抗剪破壞和剪切摩擦抗剪破壞模式，分別設(shè)計(jì)了3組試件進(jìn)行直剪試驗(yàn)，研究這3種破壞模式的破壞過程，包括位移發(fā)展過程、應(yīng)變分布和發(fā)展過程等。并將試驗(yàn)結(jié)果與相關(guān)規(guī)程中的結(jié)合面受剪承載力計(jì)算公式進(jìn)行了對(duì)比，驗(yàn)證了規(guī)程中公式的安全性與準(zhǔn)確性。［關(guān)鍵詞］裝配式混凝土結(jié)構(gòu); 結(jié)合面; 受剪承載力; 剪力鍵; 銷栓作用中圖分類號(hào)：TU398 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2016)10-0074-06
Experimental study on shear performance of joint surface between precast beam end and post-cast concreteYan Feng1, Tian Chunyu1, Hao Wei1, Gao Jie1, Tan Yu′ang2（1 CABRTECH Co., Ltd., Beijing 100013, China; 2 Vanke Co., Ltd., Shenzhen 518083, China)Abstract: Experimental study was conducted on the shear behavior of joint surface between precast concrete beam end and post-cast concrete in the precast concrete structure. In order to study the failure modes of joint surface including shear key shear failure, reinforced dowel shear failure and shear friction shear failure, three groups of specimen were designed for direct shear tests to study the failure process of the three kinds of failure modes including the displacement development process, strain distribution and strain developing process. The test results were compared with the shear capacity formula of the joint surface in the relevant rules, and the safety and accuracy of the formula were verified.Keywords: precast concrete structure; joint surface; shear capacity; shear key; dowel action
*“十二五”國(guó)家科技支撐計(jì)劃項(xiàng)目課題（2011BAJ10B04）。作者簡(jiǎn)介：顏鋒，碩士，副研究員，Email：yanfeng@cabrtech.com。
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