02439结构力学(二)自考真题2016年4月

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17

图示结构,欲使自振频率减小,应

  • A.减小l
  • B.增大k
  • C.增大m
  • D.增大EI
20

刚架的位移法基本体系如图所示,典型方程中自由项F2P

  • A.<img src="//img1.yqda.net/question-name/32/a84ab0d0ad0b0e2e762676fae1c1ea.png" width="63" height="31"/>
  • B.<img src="//img1.yqda.net/question-name/7e/d1641707a6b5190c49f98d1ae3ab23.png" width="60" height="31"/>
  • C.<img src="//img1.yqda.net/question-name/9f/5cbb0c1f68751f672d387390f91799.png" width="50" height="37"/>
  • D.<img src="//img1.yqda.net/question-name/f0/8afbc698899ddd877d9782afc26df7.png" width="52" height="38"/>
21

图示排架中BD柱的B播弯矩值为

  • A.0
  • B.<img src="//img1.yqda.net/question-name/5e/57a03b9c332b43cf0c8ee551ecd549.png" width="41" height="37"/>
  • C.<img src="//img1.yqda.net/question-name/30/49c0302da31e827c7029eb06ae7a41.png" width="35" height="34"/>
  • D.<img src="//img1.yqda.net/question-name/d8/a2550b37b5973d72d9083e1b0c9fd6.png" width="38" height="41"/>
22

图示明架的力法基本结构可取为

  • A.<img src="//img1.yqda.net/question-name/96/f894954a0c64684f6041e184dd0a9d.png" width="109" height="109"/>
  • B.<img src="//img1.yqda.net/question-name/a9/2da162c617719fa59b1ddc6eb91099.png" width="126" height="95"/>
  • C.<img src="//img1.yqda.net/question-name/2a/ba04b442da8b753d84d38e6251e6e9.png" width="123" height="92"/>
  • D.<img src="//img1.yqda.net/question-name/87/46756a49237ce19fc03ef44b3f9f93.png" width="109" height="91"/>
23

下列结构EI均为常数.不能用力矩分配法计算的是

  • A.<img src="//img1.yqda.net/question-name/ba/3992f4b707636630b78a63aa5b3e25.png" width="127" height="102"/>
  • B.<img src="//img1.yqda.net/question-name/96/9a05566a0c08c4f2477839a19b1640.png" width="119" height="102"/>
  • C.<img src="//img1.yqda.net/question-name/56/b96b0110ab5a2c235825dfa3b3deeb.png" width="114" height="95"/>
  • D.<img src="//img1.yqda.net/question-name/06/1f065a3429d73d7908374ab6775986.png" width="113" height="103"/>
24

图示结构,1杆的轴力为

  • A.<img src="//img1.yqda.net/question-name/6e/a373caf0b53b55ef54aaf48288d4f1.png" width="47" height="24"/>
  • B.0
  • C.<img src="//img1.yqda.net/question-name/f7/685a871475f089d6236c2619c26d7a.png" width="40" height="25"/>
  • D.<img src="//img1.yqda.net/question-name/0f/d7b402ff14ce5782accbb5df4b9a69.png" width="45" height="25"/>
25

悬臂梁的两种状态如图所示,下列关系中符合互等定理的是

  • A.F<sub>P1</sub>△<sub>11</sub>=F<sub>P2</sub>△<sub>22</sub>
  • B.F<sub>P1</sub>△<sub>12</sub>=F<sub>P2</sub>△<sub>21</sub>
  • C.F<sub>P1</sub>△<sub>11</sub>=F<sub>P2</sub>△<sub>21</sub>
  • D.F<sub>P1</sub>△<sub>12</sub>=F<sub>P2</sub>△<sub>22</sub>