非对称加固混凝土中长柱的偏心距增大系数研究

Eccentricity Amplifier of Slender Concrete Column Strengthened by Non Symmetrically Enlarging Section Subjected to Axial Load and Bending Moment

采用计算机模拟试验方法，对非对称加大截面加固钢筋混凝土偏心受压中长柱的偏心距增大系数的计算问题进行了研究。研究考虑了实际工程中非完全卸荷加固的特点。通过对206根柱的计算机模拟试验结果的分析，提出了这一偏心距增大系数的计算公式。

Taking into consideration the fact that all loads will not be woved in building construction when a structure is strengthened, we studied by the method of computer-test, how to calculate eccentricity amplifier of the slender concrete column strengthened non symmetrically with concrete to enlarge section subjected to axial load and bending moment. By comparing the results tests in laboratory, the results of computer-tests are proved to be reliable. After analyzing the computer -test results of 206 colmns with different paramenters, a new formula is suggested to calculate the eccentricity amplifier of the slender concrete column strengthened non symmetrically with concrete subjected to axial load and bending moment.