
建筑物的坚固性
Presentation
•
Science
•
5th Grade
•
Hard
KUAN Moe
Used 6+ times
FREE Resource
8 Slides • 2 Questions
1
建筑物的坚固性
2
坚固的物体
较强的抗断裂
抗弯曲
3
影响物体的坚固性因素
制作材料
形状
4
Multiple Select
哪项会影响物体的坚固性?
底部面积
制作材料
形状
高度
5
建筑师一般会使用的材料有:
钢铁
木材
混凝土
砖块
6
混凝土与钢筋
混凝土十分坚硬,不怕重压,可是能够承受的拉力相当小。钢筋则相反,能够承受拉力,可是却不能承受太重的压力。钢筋承受拉力,混凝土承受压力,互相配合。
7
建筑物的结构:
半球体
拱形
瓦楞形
8
善用不同结构的优点:
能把外来的压力均匀地分布在整个结构上
能承受较大的压力
9
Multiple Choice
以下哪种材料比较不适合用来建房子?
木板
混凝土
塑料
钢铁
10
总结
坚固的物体能够抗断裂或抗弯曲。增加物体的坚固性有两种,一是制作材料如钢铁、木材、混凝土等,另一种则是物体的形状,如半球形、拱形和瓦楞形。这些形状都能够把压力均匀地分布,同时也能够承受更大的压力。
建筑物的坚固性
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