为研究 CFRP 碳纤维增强复合材料粘结型锚具的受力性能及其设计参数对锚固 效率的影响，寻求较优的锚具设计参数取值范围，本研究首先采用有限元方法，通过引入 锚固效率的概念，研究了单孔直筒 + 内锥粘结型锚具的力学性能及索股径向应力和位移 分布规律． 然后，以锚固效率和等效刚度为考察指标，改变锚具及索股参数，分析了锚具总 长度、粘胶介质弹性模量、直筒段长度、内锥角大小、胶体厚度、索股直径参数对锚固效率 及等效刚度的影响规律． 结果显示:锚具总长度宜取为 12 ～16 倍 CFＲP 索股直径;粘结胶 弹性模量取 1． 5 ～3． 0GPa;直筒段长度取为总长度的 1/6 ～1/2 之间;内锥角取 4° ～5°;胶 体厚度取 CFRP 筋直径的 0． 3 ～0． 5 倍;索股直径取值宜小于 90 mm． 在建议参数取值下， 单孔直筒 + 内锥粘结型锚具的锚固效率将达到 90%，甚至 95%以上． 因此，合理优化相关 设计参数能较好地提高其锚固效率和刚度．

Mechanical performance，transversal stress and displacement of one tube composite bonding-type an- chorage was analyzed by using finite element method and introducing the concept of anchorage efficiency． The aim is to investigate the mechanical performance of bonding-type anchorage as well as the parameters' effects on the an- chorage efficiency，to find out the optimized parameters of anchors，and to solve the problems of anchorages and promote the applications of CFRP (Carbon Fiber Reinforced Polymer) in large-span bridges． Furthermore，based on the concept of anchorage efficiency and equivalent stiffness，the effects of anchors' length，elastic modulus of bond medium，length of straight tube，inner angle of barrel，thickness of tube as well as diameters of CFRP ten- dons on the anchorage efficiency were studied by changing the parameters of models． Results show that the anchors' length is suggested to be 12 to 16 times of the diameters of CFRP tendons; the elastic modulus of bond medium is suggested to be 1. 5 GPa to 3. 0 GPa; the length of straight tube is suggested to be 1/6 to 1/2 of anchors' length; the inner angle of barrel is suggested to be 4° to 5°; the thickness of medium is suggested to be 0. 3 to 0. 5 times of diameters of CFRP tendons; the diameters of CFRP tendons is suggested to be less than 90 mm． Under the sug- gested parameters，the anchorage efficiency can reach 90% ～95% or even more． Hence，it does help to promote the anchorage efficiency and equivalent stiffness by optimizing the parameters of anchors．