出自:2024年国家开放大学答案
<p class="MsoNormal" style="font-family: arial, sans-serif; font-size: 14px; line-height: 24px; color: rgb(51, 51, 51); text-indent: 31.5pt;">对下面图<i style="background-color: transparent;">a</i>所示的超静定结构，选图<i style="background-color: transparent;">b</i>所示的力法基本体系，要求<p class="MsoNormal" style="font-family: arial, sans-serif; font-size: 14px; line-height: 24px; color: rgb(51, 51, 51); text-indent: 31.5pt;">（1）列出力法典型方程；<p class="MsoNormal" style="font-family: arial, sans-serif; font-size: 14px; line-height: 24px; color: rgb(51, 51, 51); text-indent: 31.5pt;">（2）画<img alt="image.png" class="" data-id="5373542" height="31" src="https://lms.ouchn.cn/api/uploads/5373542/in-rich-contentcreated_at=2022-09-13T06:55:01Z" style="cursor: pointer;" width="29">，<img alt="image.png" class="" data-id="5373543" height="32" src="https://lms.ouchn.cn/api/uploads/5373543/in-rich-contentcreated_at=2022-09-13T06:55:13Z" style="cursor: pointer;" width="34">，<img alt="image.png" class="" data-id="5373544" height="31" src="https://lms.ouchn.cn/api/uploads/5373544/in-rich-contentcreated_at=2022-09-13T06:55:34Z" style="cursor: pointer;" width="34">图；<p class="MsoNormal" style="font-family: arial, sans-serif; font-size: 14px; line-height: 24px; color: rgb(51, 51, 51); text-indent: 31.5pt;">（3）求出各系数及自由项。（本题共20分）<p class="MsoNormal" style="font-family: arial, sans-serif; font-size: 14px; line-height: 24px; color: rgb(51, 51, 51); text-indent: 31.5pt;"><img alt="Image" class="" data-id="5373545" height="111" src="https://lms.ouchn.cn:443/api/uploads/5373545/in-rich-contentcreated_at=2022-09-13T06:57:46Z" width="329">
<img alt="Image" class="" data-id="5373687" height="44" src="https://lms.ouchn.cn:443/api/uploads/5373687/in-rich-contentcreated_at=2022-09-13T11:48:28Z" width="48">=
(analysis)
.<img alt="Image" class="" data-id="5373688" height="69" src="https://lms.ouchn.cn:443/api/uploads/5373688/in-rich-contentcreated_at=2022-09-13T11:48:28Z" width="62">
.<img alt="Image" class="" data-id="5373689" height="76" src="https://lms.ouchn.cn:443/api/uploads/5373689/in-rich-contentcreated_at=2022-09-13T11:48:28Z" width="96">