混凝土轴心受压柱用FRP加固的承载力分析  

Anallysis of Bearing Capacity of FRP Strenghted Concrete Column under Axial Compression

作　　者：梁利生[1] 邓庆阳[1] 

机构地区：[1]太原理工大学阳泉学院建筑工程系,045000

出　　处：《特种结构》2008年第4期57-60,共4页Special Structures

基　　金：国家自然科学基金重点项目(50534030)

摘　　要：通过FRP复合材料加固混凝土轴心受压柱,从而提高柱的承载力是有效的,但FRP加固混凝土轴压柱的承载力计算公式存在许多问题值得分析。本文在目前已提出的FRP加固混凝土轴压柱计算公式的基础上,引入应变滞后因子、含纤维特征值和约束比,建立了新的FRP加固钢筋混凝土轴心受压柱的承载力计算公式,提出了该公式的适用条件和应用范围,供工程界参考。Though FRP combining the concrete to improve the earring capacity of the axle centre column is valid, but there are many problems need to be analyzed in bearing capacity calculating formula of the axle centre column. Based on the formulas exited now on, the strain lagging factor, the characteristic value of holding fibre and the re- strain ratio are put forward in this paper. Furthermore a new calculating formula is built for axle centre column consolidated with FRP. Finally limiting conditions and application range are also given out. The may give some references for others.

关 键 词：FRP 应变滞后因子 含纤维特征值 约束比 建筑结构 

分 类 号：TU375[建筑科学—结构工程]