[结构][笔记][材料] 矩形截面与H形截面的抗弯能力 ( Bending Resistance of Rectangular Section and H-shaped Section)

坚持实干、坚持一线、坚持积累、坚持思考,坚持创新。


矩形截面与H形截面的抗弯能力 ( Bending Resistance of Rectangular Section and H-shaped Section),具体分析如下图。

(1)高度越高,应力越小。虽然截面高,力臂也增大,但是惯性矩增大更快。平截面假定情况下,高度加高了,产生应力的面积增大了,总弯矩不变,最大应力自然要减小。

(2)同等高、宽,抵抗同样的弯矩,H形截面材料用量只有矩形截面材料用量的1/3


You already voted!

  • 微信公众号 ( Wechat Subscription)

WeChat_QRCode

欢迎关注 “结构之旅” 微信公众号

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.