Static structures (e.g. – buildings) – Intersection of a cast stonelike component
Reexamination Certificate
2005-07-26
2005-07-26
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Intersection of a cast stonelike component
C052S251000, C052S259000, C052S742140, C052S236500, C052S677000, C052S649100, C052S260000, C052S649200, C052S252000
Reexamination Certificate
active
06920728
ABSTRACT:
Site cast or pre-cast columns aligned and braced by pre-cast pre-stressed floor beams are used to erect a concrete skeleton structure for a building. The ends of the horizontal beams are imbedded in the columns at floor levels to stabilize and complete the skeleton. The horizontal beams are pre-stressed and are cast with passages that permit insertion of continuous reinforcing tendons into a network throughout each floor level. The tendons are subsequently post-tensioned so to tie the beams together and to the columns to reinforce the skeleton. Slab drop-forms starting at the roof and progressing floor-by-floor downward allow monolithic post-tensioned floor slabs to be cast to tie the skeleton into a unitary structure. The beams are usually integrated (buried) into each monolithic floor slab, keyed, doweled and bonded with bonding agent at cold joints to become a part of the slab structure.
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Amiri Nahid
Friedman Carl D.
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