When the main beam and secondary beam connection, calculate the area of the template is good, there is no simple method
It would take the high beam length reduced thickness, and by 2, the last plus beam bottom
From the main beam to break, that is, the secondary beam axis to the axis of the long axis of the main axis of the beam to reduce the length of the beam width
The landlord is complicated. When the beam is calculated, the main girder is calculated, and the axis is the length of the axis