How to calculate the cornice corner map of traditional quadrangles

The calculation method of traditional four-corner cornice bucket angle drawing is as follows.

1. According to the vertical height and distance of the sub-angle beam end and the width of the tile ditch, calculate the data of the arc tile ditch.

2. Calculate the warping amount and length of each corner eaves rafter from bottom to top, which is generally suitable for palace buildings with high eaves and long eaves.

3. Except the secondary corner beam, only four flying rafters with different inclination angles are needed in the middle of the first straight eaves rafter nearby. According to the calculation method of roof slope, short eaves Huizhou architecture is generally adopted.