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《Journal of Zhejiang University(Engineering Science)》 2014-06
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Parameter influence analysis of wedge-type anchorages for FRP tendons based on three-dimensional finite element model

SUN Xiao-yan;YAO Chen-chun;WANG Hai-long;ZHANG Zhi-cheng;College of Civil Engineering and Architecture,Zhejiang University;  
A three-dimensional finite element model was established on basis of the experimental information of wedge-type anchor for fiber reinforced plastic(FRP)tendons,to meet the requirement of design optimization under the limited investigation of FRP tendon anchorage which is confined to the experiment scale and test parameters.The non-linear stress analysis for the anchorage system was carried out by numerical simulation.The numerical results including the dynamic evolution process of slip,failure mode,ultimate load and slip value agreed well with the experimental data.Furthermore,the effects of anchorage parameters on anchoring performance,such as the taper of anchor-ring,angle difference between barrel and wedge,thickness of aluminum sleeve,presetting load level,initial contact position between barrel and wedge,anchorage length were analyzed.Based on the numerical analysis,the recommend ranges for the above mentioned parameters were confirmed.The taper of anchor-ring is determined as the most significant influencing parameter.While the taper of anchor-ring is set as 3°,the anchorage properties and fracture morphology of the anchorage system can both be guaranteed efficiently.
【Fund】: 国家“863”高技术研究发展计划资助项目(2007AA04Z437);; 国家自然科学基金资助项目(50808158);; 浙江省重点科技创新团队资助项目(2010R50034);; 浙江省自然科学基金资助项目(Y107049);; 高等学校博士学科点专项科研基金资助项目(200803351117)
【CateGory Index】: TU375
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