Wednesday, June 17, 2009

Basic Structure

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Big wind today and heavy cloud cover made it challenging but cool.



What you are looking at is the basic structure of the "pseudo" torque box that will give the roof assembly the ability to stand up against the West wind.
There a few more brace pieces to be added which will give it some character when they are stained "Redwood", and there will be a nearly 34 foot long main beam (built in-place) on top of the torque box posts that you see in these pictures.
In a couple more days the term "Torque Box" will become self-explanatory to those who are not familiar with it.
Those horizontal 2x6 pieces that look like flat roof rafters are really the ribs of this type of torque box, and at the same time, by adding the plywood platform that a torque box requires they will provide a light weight deck/scaffold that I can get up on to do the raftering.
In the future that platform under the completed roof will provide additional storage space.

The plywood attached to the lower outside face of both posts are temporary shear webs screwed to the rim joist and then to the posts after they were plumb. The wind was blowing so hard while I was working I needed all the help I could get.
The angles from which these pictures were taken makes it look like the back door of the trailer would be blocked by a post, but it's not. There is a good 3/4 of an inch clearance. Also the trailer could be pulled straight out with no interference. There is more than 2 inches between the trailer and the nearest structure.
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Tomorrow I'll add the nailing intercostals between the ribs and the "Shear Web/Work Deck".

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