两直角刚杆AC、CB支承如图所示,在铰C处受力F作用,则A、B两处约束力的作用线与x轴正向所成的夹角分别为: A. 0°;90° B. 90°;0°...

作者: tihaiku 人气: - 评论: 0
问题 两直角刚杆AC、CB支承如图所示,在铰C处受力F作用,则A、B两处约束力的作用线与x轴正向所成的夹角分别为: A. 0°;90° B. 90°;0° C. 45°;60° D. 45°;135°
选项
答案 D
解析 提示:AC与BC均为二力杆件,分析铰链C的受力即可。

相关内容:直角,刚杆,如图,在铰,受力,作用,两处,约束力,夹角

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