快凝無(wú)機(jī)植筋膠栓的錨固強(qiáng)度與錨固剛度試驗(yàn)研究*
尚守平1，李寧1，胡向軍1,2
- 摘 要
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（1 湖南大學(xué)土木工程學(xué)院， 長(zhǎng)沙 410082； 2 河南徐輝建筑工程設(shè)計(jì)有限公司, 鄭州 450000）［摘要］開(kāi)發(fā)出一種新型快凝無(wú)機(jī)植筋膠栓，并分析了其植筋機(jī)理。通過(guò)試驗(yàn)確定其膠凝材料的配合比，對(duì)膠凝材料的抗壓強(qiáng)度和凝結(jié)時(shí)間進(jìn)行了研究。通過(guò)在混凝土試塊上的植筋拉拔試驗(yàn)，對(duì)比不同條件下的植筋極限拉拔承載力，分析各因素對(duì)錨固強(qiáng)度的影響，量測(cè)部分植筋試件的滑移量并繪制荷載-位移曲線。試驗(yàn)表明：在合理的植筋天數(shù)和錨固深度下，該新型快凝無(wú)機(jī)植筋膠栓在水平面、豎直面和仰面都有較好的錨固性能。［關(guān)鍵詞］無(wú)機(jī)膠凝材料; 快速凝固; 拉拔試驗(yàn); 極限拉拔承載力中圖分類號(hào)：TU526文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2015)09-0076-05Experimental research on anchoring strength and rigidity of rapid-solidification inorganic planting boltShang Shouping1, Li Ning1, Hu Xiangjun1,2(1 College of Civil Engineering, Hunan University, Changsha 410082, China; 2 Henan Xuhui Architecture & Engineering Co., Ltd., Zhengzhou 450000, China)Abstract: A new rapid-solidification inorganic planting bolt was developed and its anchorage mechanism was analyzed. The mix proportion of the cementitious material was determined by experiment, and its compressive strength and setting time were studied. Through the anchorage drawing experiment on the concrete substrate, the drawing ultimate bearing capacities under different conditions were compared, and effects of different factors on anchoring strength were analyzed. The shear slips of parts of the anchorage specimens were measured and the load-displacement curves were obtained. Experimental results show that the new inorganic planting bolt has very good anchoring performance in horizontal plane, vertical surface and the top surface with reasonable planting bar time and anchorage depth.Keywords: inorganic cementitious material; rapid\|solidification； anchorage drawing experiment; drawing ultimate bearing capacity*國(guó)家十二五科技支撐項(xiàng)目(2011BAJ08B02)，湖南省科技計(jì)劃重點(diǎn)項(xiàng)目(06sk4057)。作者簡(jiǎn)介：尚守平，教授，博士生導(dǎo)師，Email:sps@hnu.edu.cn。參考文獻(xiàn)［1］范錫盛,曹薇,岳清瑞. 建筑物改造和維修加固新技術(shù)［M］. 北京：中國(guó)建材工業(yè)出版社,1999.［2］尚守平,羅業(yè)雄. 帶剪切銷釘?shù)膹?fù)合砂漿加固砌體界面抗剪性能研究［J］.建筑結(jié)構(gòu)學(xué)報(bào), 2011, 32(2):54-59.［3］孫金墀.混凝土結(jié)構(gòu)植筋錨固芻議［J］.建筑結(jié)構(gòu)，2002，32(1)：26-30.［4］GLUKHOVSKY V D. Soil silicates:their properties, technology and manufacturing and fields of application［D］.Kiev：Civil Engineering Institute，1965.［5］DAVIDOVITS J. Geopolymers: inorganic polymeric new materials［J］. Journal of Thermal Analysis，1991，37（8）：1633-1656.［6］彭小芹,劉艷萌,鐘安鑫, 等. 高強(qiáng)無(wú)機(jī)錨固材料的試驗(yàn)研究［J］. 重慶建筑大學(xué)學(xué)報(bào)：自然科學(xué)版, 2007, 29(2):113-115.［7］吳其勝,李玉壽,李玉華. 復(fù)合堿組分對(duì)礦渣-粉煤灰堿膠凝材料性能的影響［J］. 粉煤灰綜合利用, 2001(2):20-22.［8］劉立新,許化彬,甘元初, 等.水泥基無(wú)機(jī)黏結(jié)材料植筋承載力的試驗(yàn)研究［J］. 鄭州大學(xué)學(xué)報(bào):工學(xué)版, 2006, 27(1):5-8.［9］鄭文忠,陳偉宏,張建華. 堿礦渣膠凝材料作膠粘結(jié)劑的植筋性能研究［J］. 武漢理工大學(xué)報(bào)：材料科學(xué)與工程版,2009, 31(14):10-14.［10］王果,鐘開(kāi)紅,徐海軍. 高性能非水泥基無(wú)機(jī)植筋膠的研究［J］. 廣州建筑, 2011, 39(3):38-41.［11］尚守平,羅業(yè)雄,岳香瑩, 等. 無(wú)機(jī)膠在砌體中的應(yīng)用試驗(yàn)［J］. 廣西大學(xué)學(xué)報(bào)：自然科學(xué)版,2009, 34(3):265-269.
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