试题与答案

图示结构取A支座反力为力法的基本未知量X1(向上为正),当1I增大时,则柔度系数δ1

题型:单项选择题

题目:

图示结构取A支座反力为力法的基本未知量X1(向上为正),当1I增大时,则柔度系数δ11()。

A.变大

B.变小

C.不变

D.不确定

答案:

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