如图5-66所示,长方形截面细长压杆,b/h = 1/2 ;如果将b改为h后仍为细长杆,临界力Fcr是原来的多少倍?( ) A. 2倍 B. 4倍 ...

作者: tihaiku 人气: - 评论: 0
问题 如图5-66所示,长方形截面细长压杆,b/h = 1/2 ;如果将b改为h后仍为细长杆,临界力Fcr是原来的多少倍?( )
选项 A. 2倍 B. 4倍 C. 8倍 D. 16倍
答案 C
解析 提示:由临界力的计算公式得到。

相关内容:如图,5-66所示,长方形,截面,压杆

猜你喜欢

发表评论
更多 网友评论0 条评论)
暂无评论
错误啦!

错误信息

  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
    <?php echo 'KongPHP, Road to Jane.'; ?>