承受均布荷载混凝土双向板的粘板加固设计*
- 摘 要
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张继文 吕志涛 (东南大学 南京 210096)褚靖宇 (靖江市建设委员会 214500)马 强 (深圳华艺设计顾问有限公司 518031)
[提要] 外贴纤维增强复合材料( FRP)或钢薄板的补强技术用于加固钢筋混凝土板,具有加固效果显著、施工简便且耐腐蚀性好等优点。在已有的混凝土双向板外贴板加固试验研究成果[1]的基础上,进一步应用塑性铰线理论对承受均布荷载的混凝土矩形双向板用外贴薄板加固后的最终塑性铰线模式及其承载力进行了分析计算,在此基础上提出了适用于该类加固板的实用设计计算方法及设计表格,并编制了相应的通用程序。
[关键词] 加固 纤维增强材料 钢筋混凝土板 粘贴 塑性铰线
The strengthening technique using bonding of external FRP or steel thin plate onto the surface of the RC slabs has such advantages as effectiveness, convenience and anti-corrosion. The yield line pattern and strength of the plated RC slabs subjected to a uniformly distributed load are analyzed and calculated by employing yield line method, and furthermore, a practical design procedure and corresponding designing-tables are also proposed.
Keywords: strengthening; FRP; reinforced concrete slab; bonding; yield line