续建工程新旧混凝土框架节点粘钢和碳纤维加固方案比选  

SCHEME COMPARISON AND SELECTION OF BONDING STEEL AND CFRP CONCRETE FRAME JOINT CONTINUED PROJECTS

作　　者：李凯文 

机构地区：[1]无锡城市学院,江苏无锡214153 [2]无锡环境科学与工程研究中心,江苏无锡214153

出　　处：《工业建筑》2012年第3期147-153,163,共8页Industrial Construction

基　　金：江苏省第七批"六大人才高峰"项目(JY 060);无锡城市学院院级重点课题(WXCY-2011-GZ-001)

摘　　要：对续建工程中新旧混凝土交接处的框架梁柱节点进行抗震性能理论分析,对粘钢加固法及碳纤维加固法滞回曲线、骨架曲线、节点刚度、耗能能力和极限承载力进行了分析比较,得出一些结论:粘钢加固法抗剪承载能力增长较碳纤维加固法略大,粘钢加固法较碳纤维加固法对节点延性改善效果更为明显,两种方法加固后节点弹性和塑性阶段刚度均有明显提高,粘钢加固后的节点耗能能力增长显著而碳纤维加固后的节点耗能能力增长较弱。综合考虑以上方面后,工程节点加固应用粘钢加固法,工程效果较好。In this thesis, some simple analytical FEA（finite element analysis） models are developed and utilized to determine the shear strain and seismic capacity of the frame joints of continued projects strengthened by two different methods, bonding steel and CFRP（ carbon fiber reinforced plastic）. The shear mechanism, failure mode, deformation capacity, bearing capacity and the reliability of the reinforced models and un-reinforced model are gathered to determine the influence produced by the reinforcements. Results of FEA show that both strengthening methods have significant influences on their failure capacity and seismic capacity. From some mechanical aspects, bonding steel proves more suitable for better engineering performance.

关 键 词：框架节点 新旧混凝土 加固 ANSYS 方案比选 

分 类 号：TU746.3[建筑科学—建筑技术科学]