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（南京林業(yè)大學(xué)土木工程學(xué)院， 南京 210037）
［摘要］為研究竹-混凝土剪力連接件力學(xué)行為，對3組6個竹-混凝土剪力連接件進行了靜載試驗，連接件的類型分別為栓釘型、凹槽型和凹槽-栓釘型。研究結(jié)果表明：栓釘型剪力連接件的破壞模式屬于延性破壞，而凹槽型和凹槽-栓釘型剪力連接件破壞模式屬于脆性破壞，栓釘型剪力連接件的荷載-滑移曲線存在完全塑性階段，極限位移大，延性系數(shù)大，承載力低；凹槽-栓釘型和凹槽-栓釘型剪力連接件初期基本無滑移，承載力高，延性系數(shù)小，滑移變形能力差。
［關(guān)鍵詞］組合結(jié)構(gòu)； 竹材； 混凝土； 連接件； 荷載-滑移關(guān)系
中圖分類號：TU375-3， TU366文獻標識碼：A文章編號：1002-848X(2017)17-0020-04
Comparative study of load-slip performance of bamboo-concrete shear connectors
Zhou Mengqian, Wei Yang, Ji Xuewei, Cheng Xunyu
(College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China)
Abstract:In order to investigate the mechanical behavior of bamboo-concrete shear bamboo-concrete connectors, three groups of six shear connectors were tested under static loading. The connectors had three types of dowel connectors, notch connectors and dowel-notch connectors. The results show that the failure modes of the dowel connectors are ductile, while the failure modes of the notch connectors and dowel-notch connectors are brittle. The dowel connector has a fully plastic phase in the load-slip curves, and shows large ultimate displacement, large ductility coefficient, and low bearing capacity. The notch connectors and dowel-notch connectors has almost no slip in the early stage in the load-slip curves, with high bearing capacity, low ductility coefficient, and poor slip ability.
Keywords:composite structure; bamboo; concrete; connector; load-slip relationship
*國家自然科學(xué)基金（51208262），江蘇省自然科學(xué)基金（BK20151520），江蘇省“333”工程（BRA2016421），“青藍工程”項目（QL2017），江蘇高校優(yōu)勢學(xué)科建設(shè)工程資助項目（PAPD）。
通訊作者：魏洋，博士，教授，博士生導(dǎo)師，Email:wy78@njfu.edu.cn。
