【摘要】 阐述用待定系数法解梁的挠曲线方程，推导出待定系数的表达式．对于给定载荷的等截面静定梁，可直接由梁的弯矩方程推出挠曲线方程的表达式更多还原

【Abstract】 Computing the equations of beams’ deflection curve by method of undetermined coefficients is expounded,and expressions of undetermined coefficients are deduced.For the statically determinate uniform beams with loads have given,the expressions of deflection curve can be obtained directly according to the equations of bending moment.It is provided with practical value.更多还原