Portal Frame Sketch

My first drawing attempt to the structure.
I tried to keep it to the basic and as concise as possible.
So you guys can easily notice the different parts.

p.s. click the image for clearer drawing.

Portal Frame Building

Building : Geelong Table Tennis Centre
Completed : March 1977
Architect : G E Drinnan & Associates Pty. Ltd.
Builder : J. C. Taylor & Sons Pty. Ltd.

Pic 1 : Long Span Beams, normally using Mild Steel Universal Beam for both rafter and stanchion

Pic 2 : Rigid connection at Apex



Pic 3 : Detail of the joint



Pic 4 : The Arena from Distance, compare the length of the Beam to a normal sized car.