19 October 2009

Day 66 - cross bracing and beams

It was a cold, windy and rainy day but we spent the day making sure that the walls were plumb, putting in cross bracing to keep them that way and finishing putting the top plate into position.

We were also able to put the 4 beams into position. These two beams over the main space of Bruce and Morag's house are composed of 3 lengths of 225x44mm (9"x2") which will be drilled and bolted together. A similar beam runs over the back of Pat's workshop. these three beams continue the load bearing over the long cellar walls.

A longer beam was put in place over the Octagonal space in Pat and Wendy's house. Because the span is so big in this area, this beam is composed of 4 lengths of 225x44mm timber which will be bolted together. this was a heavy beam but the two of us (with the support of Aaron) were able to lift it into position by constructing ladder of supports up each of the posts for the beam to rest on.

This beam will also be braced at each end to further reduce the span to the 4m that our engineer recommended, so we left a notch out of the bottom of the beam so that the brace could be inserted later. Pat has a few lengths of ash poles which will be used as bracing 'in the round'.

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