Experimental Study and Numerical Simulation on Bonding Behavior of the New HB-FRP Strengthening Technology
Experimental Study and Numerical Simulation on Bonding Behavior of the New HB-FRP Strengthening Technology
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DOI：
10.1061/(asce)cf.1943-5509.0000235
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发表时间：
2012-04
影响因子：
2.5
通讯作者：
Yanhua Guan;B. Jiang;X. Song
中科院分区：
文献类型：
--
作者：
Yanhua Guan;B. Jiang;X. Song
摘要为了寻找一种改善粘接和限制滑动位移的替代方法，提出了一种将纤维增强聚合物（FRP）表面粘接[外粘接FRP (EB-FRP)]与新型机械紧固相结合的新技术，即混合粘接（HB-FRP）。在新的改进梁剪程序中对梁试件进行了研究和比较，以研究HB-FRP和EB-FRP的粘结行为。采用ANSYS软件中的pretension 179单元和压实副，对不同螺栓预紧力下的界面剪切进行了有限元模拟分析。通过拉伸试验程序研究了螺钉螺栓的锚固深度，通过有限元分析模拟了不同封盖板尺寸和螺栓预紧力下的接触压应力，为封盖板和螺栓的选择提供了依据。在试验和有限元分析的基础上，提出了一种新的结构型式。
AbstractTo find an alternative way of improving bonding and restricting sliding displacement, a new technique that combines fiber-reinforced polymer (FRP) surface adhesion [externally bonded FRP (EB-FRP)] with a new type of mechanical fastening, namely hybrid bonding (HB-FRP), is developed. The beam specimens are investigated and compared in a new modified beam-shear program to examine the bonding behavior of HB-FRP and EB-FRP. The finite element analysis is conducted to simulate the interfacial shear on the basis of different bolt pretension force by Pretension 179 element and compact pairs of ANSYS software. Also the anchoring parameters of the hybrid bonding of FRP are studied by a drawing test program to study the anchor depth of screw bolts and by the finite element analysis to simulate the contact compression stress on the basis of different sizes of capping plate and bolt pretension for the selection of the capping plates and bolts. On the basis of experiments and the finite element analysis, the f...