图示结构用力矩分配法计算时,结点A的约束力矩(不平衡力矩)为(以顺时针转为正)( )。<img src="data:image/png;base64,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" ><br>·3Pl/16<br>·-3Pl/8<br>·Pl/8<br>·-3Pl/16

图示结构用力矩分配法计算时,结点A的约束力矩(不平衡力矩)为(以顺时针转为正)( )。<img src="data:image/png;base64,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" >
·3Pl/16
·-3Pl/8
·Pl/8
·-3Pl/16

出自：佳木斯大学语言治疗学

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