Saturday, May 31, 2008

Major project research / construction

Main Project Research
For my main project I will be showing a common pad footing similar to the one shown below and how it is connected to the column of a building. I will be using some real materials and some substitutes where necessary eg: foam instead of actual concrete for the base.

A very brief sketh undertaken before constructing my model to put my ideas into a visual format is seen above. Below we see step by step pictures of the model i have created, showing how a steel column is connected to the footing. The trench mesh is still visable and would of been in place before the concrete was poured. We can also see the steel reinforcement bars that help strengthen the footing and help protect it under tension forces as well as the steel rods that have nuts attached so as the steel columns level can be adjusted until its even. Finaly we see a small section of what would be a concrete slab coming off the edge of the I beam.

Foam cut to size before its glued together


Glued together


Timber to be used as a replacement for a ub column. Cut to size

Deformed bar and steel reinforcement bars that are to be used in the model

The foam used to replace actual concrete has been painted to give as much of a realistic feel as possible. Also holes have been drilled for the reinforcement (this is obviously not the process used in making a real footing however it is effective for this model).

The timber has been nailed and glued to mimic a ub colum.

Timber has been painted

Deformed bar is then glued into pre-drilled holes in the top of the footing. These bars also act as hold down pins.

The reinforcement is pushed into place and the steel mesh is placed on top. In a real life situation however the mesh would be there before the concrete pour.

The timber is attached to the footing

Another view of the attached column


A birds eye view where we can see the nuts and washers holding the column in place

A couple of close ups of the bolts. This shows us how the builders are able to move the nuts up and down the threaded rod until the base plate is perfectly level.

The completed model with a small section of what would be a concrete slab attached to the column.

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