均布荷载作用下的五跨等跨连续梁，有()等受力特征。A.第三跨跨中剪力为零B.各跨跨中弯矩都为正弯矩C.边跨跨中剪力最大D.梁端支座处梁承受...

作者: rantiku 人气: - 评论: 0

问题均布荷载作用下的五跨等跨连续梁，有()等受力特征。 A.第三跨跨中剪力为零 B.各跨跨中弯矩都为正弯矩 C.边跨跨中剪力最大 D.梁端支座处梁承受负弯矩 E.中间支座处梁承受负弯矩

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答案 ABE

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