成考院校在线答案
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">30、<span style="mso-spacerun:'yes';font-family:等线;font-size:10.5000pt;mso-font-kerning:1.0000pt;">作多跨静定梁基本部分上的内力</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">、</span><span style="mso-spacerun:'yes';font-family:等线;font-size:10.5000pt;mso-font-kerning:1.0000pt;">支反力影响线的影响线时，<font face="Times New Roman">P=1</font><font face="等线">在基本部分上移动，其影响线与相应的单跨梁影响线相同</font></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">33、<span style="mso-spacerun:'yes';font-family:等线;font-size:10.5000pt;mso-font-kerning:1.0000pt;">静定结构</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">一定是几何不变结构</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">22、<span style="mso-spacerun:'yes';font-family:等线;font-size:10.5000pt;mso-font-kerning:1.0000pt;">一个杆系，在荷载作用下，若略去杆件本身的弹性变形而能保持其几何形状和位置不变的体系称为几何不变体系</span><span style="font-family:'等线 Light';mso-bidi-font-family:Arial;font-size:11.0000pt;mso-font-kerning:1.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">25、<span style="mso-spacerun:'yes';font-family:等线;font-size:10.5000pt;mso-font-kerning:1.0000pt;">在荷载及多余未知力共同作用下，基本结构的受力和位移与原结构完全一致。因而求超静定结构位移，可用求基本结构位移来代替</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">23、<span style="mso-spacerun:'yes';font-family:等线;font-size:10.5000pt;mso-font-kerning:1.0000pt;">结构上某截面剪力的影响线，在该截面处必定有突变</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">36、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">固定端处不但有约束反力，还有反力矩</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">26、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;color:rgb(0,0,0);font-size:10.5000pt;mso-font-kerning:1.0000pt;">桁架中不受外力作用的<font face="Calibri">L</font><font face="宋体">形结点处的两根杆件一定是</font></span><span style="mso-spacerun:'yes';font-family:Calibri;color:rgb(0,0,0);font-size:10.5000pt;mso-font-kerning:1.0000pt;">零力杆</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">37、<span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">在已知荷载作用下，能选择三铰拱的轴线，使得拱的所有横截面上的</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">弯矩</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">为零。该拱的轴线就称为三铰拱的合理拱轴线</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">36、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">第一状态的外力在第二状态的位移上所作的虚功，等于第二状态的外力在第一状态的位移上所作的虚功，这就是功的互等定理</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2024-03-05 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">32、<span style="mso-spacerun:'yes';font-family:等线;font-size:10.5000pt;mso-font-kerning:1.0000pt;">超静定结构</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">存在多余约束，在实际结构中应去掉多余约束</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">。</span><span style="mso-spacerun:'yes';font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;">( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>