Spline and block floor support

Peter came to me with a design challenge/opportunity for the joist end connections that would point in toward the huge tree in the middle of the octagonal room. We needed to support some circumferential floor boards, inside the innermost ring of floor beams. A likely method was some form of joinery for the radial joists that would extend beyond the inner surface of the joist. We could make a horizontal spline with a clunky block atop it, or? We came up with a yoke spline into which a dadoed block slides against the inner face. The floor boards sit on this block. The block is, in turn, held in place by horizontal pegs through the spline. We drew a version that had vertical keys on either side that pulled the block along the spline into the joist, but calmer heads prevailed.



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