Based on plane section assumption , this paper presents the methods of calculating the ultimate strength of the columns strengthened with cfrp , and makes a simplification of the methods . a fortran program on nonlinear method is presented to numerically analyze the characteristics of large eccentrically loaded columns strengthened by longitudinal straps of cfrp , calculating results compare well with experimental data 本文在平截面假定的基础上分别推导了碳纤维布纵向粘贴大偏心受压柱的正截面承载力校核和截面加固基本计算公式，并对公式进行了相应的简化；运用fortran语言编制相应程序对纵向粘贴碳纤维布大偏压柱进行了数值分析，本文公式计算结果和程序计算结果均与试验结果吻合良好。
The experimental result has shown that the ultimate bearing capacity and ductility of eccentrically loaded columns have a certain increase when they are strengthened with transverse cfrp . in addition , the excessive eccentrically loaded columns have a more notable effect as a result of strengthening with the combination of longitudinal and transverse cfrp . the increasing degree of strengthening columns ’ bearing capacity reduces while the volume of cfrp increases 试验结果表明,碳纤维布横向加固偏压柱时,其承载力和延性均有一定程度的提高;对于大偏心受压柱,纵横向联合粘贴碳纤维布的加固效果非常明显;随着cfrp加固层数的增加,构件承载力的提高幅度减小。
4 . based on the theory - character parameter , this paper presents the theory equation for stress - stain complete curves of the rpc filled steel tube , it is founded that computed curves are in good agreement with the tested one , and it can be applied for the all course analysis of the rpc filled steel tube 4 、基于上述圆钢管rpc轴压柱的理论特征参数，推导建立了圆钢管rpc轴压柱应力应变全曲线理论方程，该方程理论曲线与试验曲线相当吻合，可用于圆钢管rpc构件的全过程分析。
By combining monte carlo simulation and numerical calculation methods , the mean values and standard deviations can be obtained . and considering the relativity of axial force and bending moment of the loading effects , the reliability index of reinforced concrete and steel reinforced concrete columns with eccentric compression was calculated by the checking point method . also all kinds of influencing factors were analyzed 通过monte ? carlo模拟和数值计算相结合的方法得到构件抗力均值和标准差，考虑荷载效应中轴力和弯矩的相关性，采用验算点法计算了钢筋混凝土和型钢混凝土偏心受压柱的可靠指标并分析了各种因素的影响。
20 src eccentric loading specimens were designed taking the relative eccentricity e0 / h the slendemess ratio 10 / h as the factors . according to the mechanical behavior of eccentric loading columns , unidirectional embedded electronic steel - concrete slip transfers and double - directional embedded electronic steel - concrete slip transfers were respectively placed inside these 20 specimens and electronic strain gauges were also installed on the steel shape flanges webs and concrete . the change of the mechanical behavior and interior slip of the 20 specimens in the whole process of loading was fully observed 设计了以长细比、偏心距为主要参数的20个偏压柱试件，根据偏压柱的受力特性，在试件中分别放置了单向内置式钢?混凝土电子滑移传感器和双向内置式钢?混凝土电子滑移传感器，并分别在型钢翼缘、腹板和混凝土上布置了电子应变片，对试验柱在受荷全过程的受力性能、和内部滑移的变化进行了细致的观察。
By the summarizes and the whole analysis with the experimental results of the 20 specimens , the slip - distributions on tensile and compressive side of steel shape flange were obtained and the influence of the factors such as relative eccentricity e0 / h the slendemess ratio 10 / h on the bond - slip properties was further studied 根据20个偏压柱滑移的测试结果，进行综合分析和归纳，基本得到了型钢拉、压侧翼缘滑移的分布规律，并进一步以偏压柱长细比、偏心距为主要参数，分析了其对粘结滑移性能的影响。
