What is the calculation formula of bridge elbow?

Oblique angle = height x 1.4

Bottom edge = height

Width of inverted notch = height of side plate of trunking x 8. 1.

Slot width = trough floor width x 8. 1.

For example, if the trunking is 200 (bottom) x 100 (side), and after 1.5m, it should be turned up by 20cm (height), we can calculate it as follows:

Hypotenuse 28 = 20 x 1.4

Cardinality 20 = 20

Slot width 16.2 = 200 x 8. 1.

classify

1. According to its curvature radius, it can be divided into long radius elbow and short radius elbow. Long-radius elbow refers to the outer diameter of the pipe whose curvature radius is equal to 1.5 times, that is, r =1.5d; Short radius elbow means that its radius of curvature is equal to the outside diameter of the pipeline, that is, r =1.0d ... (d is the diameter of the elbow and r is the radius of curvature).

2. According to the pressure classification, there are about 17 kinds, which are the same as American pipe standards, including: Sch5s, Sch 10s, Sch 10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, xs; Sch80、SCH 100、Sch 120、Sch 140、Sch 160、XXS； Among them, sexually transmitted diseases and XS are commonly used.