Portal Frame Site Photos

The following photo's were taken 2 years ago at two locations. One was behind a school in Preston where a new gym was being constructed. The other was also a gym except it is located in the Thomastown area.

BASE CONNECTIONS

The column is shown here being connected to the concrete pad. Four bolts already cast into mass concrete pad or reinforced pad then lined up with base of column and bolted down.

KNEE JOINTS

Knee Joint at rafter and column connection is shown with a bolted joint. Many bolts on both rafter and column increase a better secure connection

APEX JOINT

Apex Joint securing the connection between to spans of rafter. End plates on both rafters are welded on and then meet up to be bolted together.

PURLIN TO RAFTER

'C’ section purlin bolted to cleat. Cleat is welded to rafter

GIRT TO COLOUMN

‘C’ section girts are attached to column through bolted cleat which is welded to column

WALL AND ROOF BRACING

Wall and Roof bracing achieve the same goal by increasing the structural rigidity of the portal frame. Cross angle bars as in the pictures are connected by bolts to the column or rafter depending on what type of bracing is needed.