<p>图示两端铰支压杆的截面为矩形，当其失稳时： <img alt="" src="https://file.gaojiufeng.cn/learnAppQuestion/06/ff/06ffcc36cb81546dce3164ae50d8fb31.jpg" style="width: 100%;height: auto;"><img alt="" src="https://file.gaojiufeng.cn/learnAppQuestion/26/da/26dac974f3a594f2eafcf6e7cf22d577.jpg" style="width: 100%;height: auto;"></p>