<p>工作平台支架柱两端铰接，截面无孔眼削弱，计算此支柱的压力设计值N。<br><img max-width="300" src="https://learnfile.20230611.cn/learnAppQuestion/f8/06/f8065fea408f6c2390f121c308c1bff0.jpg" style="width: 100%;height: auto;"><br><br><img max-width="300" src="https://learnfile.2023061