02439结构力学(二)自考真题2010年4月
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- 16
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图示结构的自振频率ω=( )
- A.<img src="//img1.yqda.net/question-name/c8/d556c0ab1a54937f0dc438865c7dd4.png" width="51" height="56"/>
- B.<img src="//img1.yqda.net/question-name/64/fbc699f68460ae1445d0897b95cd34.png" width="50" height="50"/>
- C.<img src="//img1.yqda.net/question-name/5c/3691b3fcc4e129960796d566b8f013.png" width="47" height="45"/>
- D.<img src="//img1.yqda.net/question-name/f2/77a840bf168d1a6b3d3f5908c4b922.png" width="40" height="49"/>
- 17
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图示结构，各杆EI、EA为常数，结构刚度矩阵元素K33等于( )
- A.<img src="//img1.yqda.net/question-name/9d/17b52899bd3fe08cdb62eeec8317de.png" width="22" height="43"/>
- B.<img src="//img1.yqda.net/question-name/50/8a5dc7f57fc430bdad9db8824e1c44.png" width="30" height="40"/>
- C.<img src="//img1.yqda.net/question-name/bf/d465904002a52a2b554d0e01facc71.png" width="26" height="36"/>
- D.<img src="//img1.yqda.net/question-name/72/4257c08b779d6fd4aaa712b318b6f9.png" width="34" height="40"/>
- 23
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图示桁架中1杆的轴力等于( )
- A.0
- B.<img src="//img1.yqda.net/question-name/fd/f7d5a8511a1d554b02cc0f34fc5301.png" width="22" height="44"/>
- C.<img src="//img1.yqda.net/question-name/a8/9696150a3ea29fb4479cca2034d6a1.png" width="43" height="43"/>
- D.FP
- 26
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图示结构，K截面弯矩值为(内侧受拉为正)( )
- A.0
- B.<img src="//img1.yqda.net/question-name/44/27443773a842cc160f4e21e3a29361.png" width="43" height="38"/>
- C.<img src="//img1.yqda.net/question-name/8d/bed6af4d3a5ba93942163f3df70827.png" width="39" height="39"/>
- D.F<sub>P</sub>l
我
__________。
