What is the manufacturing method of 90-degree elbow of bridge elbow?

The manufacturing method of the bridge elbow is as follows:

1, the bottom length of curved bridge is the same as the bridge width, but the range is controlled within 400 mm;

2. Draw two vertical lines on the side wall of the bridge relative to the bottom edge.

3. The two vertical lines drawn are the center lines of two isosceles triangles.

4. After the isosceles triangle is cut off, bending the bridge can get a 90 bridge elbow formed by two 45 bends.

Extended data;

90-degree elbow is very common in the process of making bridge elbow, which can be divided into horizontal 90-degree elbow and vertical 90-degree elbow.

Sub-supports are cable supports leading from the main bridge to local equipment. There is no drawing design, and the construction personnel will design them according to the site conditions. Commonly used elbow types are horizontal elbow 90, up-and-down bend 45, vertical up-and-down elbow, horizontal tee, etc. As for the modified elbow with limited bridge length, any length and distance can be controlled as long as the simple mathematical knowledge learned in junior high school is used for calculation.

Baidu encyclopedia-bridge elbow diagram