图(a)所示梁,取图(b)所示基本结构,则其力法典型方程为______。<img src='https://img2.soutiyun.com/ask/5331001-5334000/7f7022b97212479974fc893e8ba13d56.jpg' />

A.δ<sub>11</sub>X<sub>1</sub>+δ<sub>12</sub>X<sub>2</sub>=0,δ<sub>21</sub>X<sub>1</sub>+δ<sub>22</sub>X<sub>2</sub>=-φ B.δ<sub>11</sub>X<sub>1</sub>+δ<sub>12</sub>X<sub>2</sub>=φ,δ<sub>21</sub>X<sub>1</sub>+δ<sub>22</sub>X<sub>2</sub>=0 C.δ<sub>11</sub>X<sub>1</sub>+δ<sub>12</sub>X<sub>2</sub>=0,δ<sub>21</sub>X<sub>1</sub>+δ<sub>22</sub>X<sub>2</sub>=φ D.δ<sub>11</sub>X<sub>1</sub>+δ<sub>12</sub>X<sub>2</sub>=0,δ<sub>21</sub>X<sub>1</sub>+δ<sub>22</sub>X<sub>2</sub>=0

时间:2023-10-01 13:56:49

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