Cellulose-based structural flooring panel assembly
AssigneeDialog IP Corp.
InventorsThomas Wu, Daria Khachi, Craig Applegath
Life of this patent
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Abstract
A cellulose-based structural building panel assembly includes a cross-laminated timber (CLT) core which is reinforced with one or more post-tensioned tendons stressed to a pre-selected tensioning force, following the placement as part of the panel assembly. The tendons are provided within a sleeve which is grouted with a channel formed in an underside of the core and which after post-tensioning of tendons is infilled with a binder securing the tendons in a fully bonded configuration.
Claims21
A structural beam or building panel assembly, the assembly comprising,
- a cellulose-based cross-laminated timber (CLT) core, the core having generally planar upper and lower surfaces and comprising a plurality of laminated timber layers, each timber layer comprising a plurality of elongated timber members arranged in a substantially parallel array, an elongated orientation of the timber members of each array being oriented orthogonally relative to that of a next adjacent array,
- at least one longitudinally extending channel extending inwardly into a top or bottom surface of said core,
- an associated reinforcing assembly at least partially disposed in each said channel, each reinforcing assembly including a tensioning assembly,
- grouting substantially encapsulating and securing said tensioning assembly positioned relative to said channel, and wherein each tensioning assembly includes,
- an elongated sheath,
- at least one tendon disposed within said sheath and extending longitudinally substantially along a length of the channel, wherein the sheath being selected to sufficiently isolate the at least one tendon from said grouting to permit post-tensioning of the at least one tendon following setting of said grouting, and at least one tendon anchor selectively engageable with an end portion of at least one said tendon to maintain said at least one tendon under tension in a selected tensioned state relative to said core.
A structural building beam or flooring panel assembly having a longitudinal length and lateral width, the assembly comprising, a cross-laminated core having upper and lower surfaces and comprising at least five vertically stacked laminated beam layers, each said beam layer comprising a plurality of longitudinally elongated cellulose members arranged in a substantially parallel array, the longitudinal orientation of the cellulose members of the uppermost and lowermost beam layers being generally parallel, and wherein the array of cellulose members of each beam layer is arranged in a successively alternating normal orientation with the orientation of the array of cellulose members of the next adjacent beam layer, one or a plurality of longitudinally extending channels being formed in the lower surface, each channel extending vertically a minimum distance through at least one of said beam layers,
- a reinforcing assembly at least partially disposed in each said channel and comprising, a tensioning assembly comprising at least one elongated tendon extending longitudinally substantially the longitudinal length of the panel assembly, and grouting substantially encapsulating the tendon assembly and maintaining tendon assembly in position within said channel, and wherein the at least one elongated tendon comprises a post-tensioned tendon, wherein the post-tensioned tendon has been subjected to a selected tensioning force and fixed in place under tension following settling of the grouting.
Dependencies are inferred from the claim text.