圖示結(jié)構(gòu)當(dāng)E點(diǎn)有P=1向下作用時(shí),B截面產(chǎn)生逆時(shí)針轉(zhuǎn)角φ,則當(dāng)A點(diǎn)有圖示荷載作用時(shí),E點(diǎn)產(chǎn)生的豎向位移為:()