截面法计算弯曲内力的改进措施

Improving Measure of Calculating Bending Stress with Section Method

截面法计算杆件内力的过程中,弯矩剪力正负号的运用对初学者不好掌握,根据多年的教学经验,谈一下弯矩剪力正负号运用的改进措施。

It＇s not easy to command bending moment,shear plus and minus. According to my many year＇s teaching experience, I＇d like to talk something about the appliance of bending moment,shear plus and minus.