【摘要】 介绍了截面弯矩、杆端弯矩正负号在梁、刚架、位移法等部分计算中的应用,并详细分析了它们之间的本质区别和联系,为结构力学初学者提供了方便。更多还原

【Abstract】 The application of the signs of bending moments of cross-section and rod end in stress analysis of beam, rigid frame and displacement method are introduced. The differences and correlations are analyzed in detail in order to provide references for new person to structural mechanics.更多还原