iS.BlankO
2022-01-07T01:31:32+00:00
[img]https://img.nga.178.com/attachments/mon_202201/09/-7Q2p-32zgK1yT1kSg0-sg.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202201/09/-7Q2p-j097K1sT1kSg0-sg.jpg[/img]
要是回到20年前，我应该可以试一试[s:ac:呆]
要是回到一年前，我应该会[s:ac:呆]
考完就忘 [s:ac:哭笑]
先设出支座反力，然后对ab点取矩，然后画剪力图弯矩图完事儿了，同是材料人，去年学的，课上也没怎么学，都是期末熬夜看速成视频应付的，做这些基础题够用了。
Reply to [pid=580154426,30203621,1]Reply[/pid] Post by [uid=60541196]司马当活马懿[/uid] (2022-01-09 09:41)求个解题过程
[quote][pid=580154620,30203621,1]Reply[/pid] Post by [uid=62370499]洛阳家里没有矿[/uid] (2022-01-09 09:42):
求个解题过程[/quote]地铁上呢，写不了[s:ac:哭笑]
就是对a点取矩，可以解出b点支座反力Fb
对b取矩，解出Fay
然后根据求出的力画剪力图，我没记错受M剪力图是正的平线，弯矩图是逐渐递减然后在M处突增
[img]https://img.nga.178.com/attachments/mon_202201/09/-7Q2p-2crcZ2cT3cSqo-zk.jpg.medium.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202201/09/-7Q2p-2lvcZ2hT3cSqo-zk.jpg.medium.jpg[/img]
紫薯