Generally a wood beam is calculated by the own resistances of the wood in terms of traction and compression. So the result can be a long beam and very wide, which means a lot of wood expenditure. Thinking that steel has a lot more resistance to traction is that I have thought of helping the long beams with steel inside.
With the same criterion as the post-beam system of concrete beams, I consider that the traction of the wood can be strengthened. Considering the increase of resistance by post-tensioning it will be possible to construct smaller beams in terms of their width or to overcome longer lights in architect's works and also to consider them to build bridges of civil work.
In order to make these beams, it will be necessary to calculate the path of the tendons and to engrave the cavity through which they pass so that by joining two beams the circular space is formed for their operation.
Give more resistance to the beams.
Laminated wood, steal tendons.
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