FRP约束混凝土柱强度承载力计算

FRP复合材料由于具有高强、轻质、抗腐蚀和耐疲劳、温度作用下稳定性好等特点 ,因而受到土木工程界的关注 ,正被越来越广泛地应用于柱结构的修复加固中 ,取得了良好的经济效益和建筑效果。为此 ,简要介绍了目前已提出的对FRP约束混凝土柱承载力的典型计算方法 ,并进行了分析 ,在此基础上 ,提出了一种承载力简化计算方法 ,计算结果和大量试验结果吻合良好 ,研究成果可供工程界参考。

CALCULATION OF BEARING CAPACITY AND STRENGTH OF FRP-CONFINED CONCRETE COLUMNS

FRP composites have received increasing interest in column repairing and strengthening.The advantages of utilizing FRP in engineering over conventional materials are summarized as,higher strength to weight ratio,good resistance to corrosion and fatigue,and greater dimensional and thermal stability.Satisfactory economic effect and architecture effect have been obtained.The existing methods for the calculating strength of FRP\|confined columns are summarized and analyzed,finally,a kind of new method is put forward,the calculated results fit with those of the tests satisfactorily and may be a reference for practical engineering.