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Wisconsin | No, I'm not an engineer.
A truss works extremely well from an engineering perspective. From a farm door perspective, a wood brace in compression works better.
Again, from an engineering perspective, there should be no difference in the connection strength between compression and tension. From a farmer or woodworker perspective the loosening comes from expansion and contraction of the wood, and compression of the piece itself is critical for the door, the fasteners hold the outside frame together and keep the brace in place. Look at the failures of engineered wood bridges, they come down to overestimating the real world strength of fasteners in wood. The florida university bridge collapsed because they overlooked the load transfer between the tension and compression, as if they used a too small gusset in a truss.
https://www.youtube.com/watch?v=73EScguZZzI 16:00 for the details of the failure
https://www.youtube.com/watch?v=FSPI0xkTifI | |
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Sagging Shed Door Fix
