specifications - FAACO - Federal Aviation Administration Contract ...

3.02 INSTALLATION:FTWIC-2235June, 2009used for field connections. Visible rivets bolts, screws, etc., shall have flush or ovalheads and shall be countersunk. Seal-weld visible joints and exposed joints their entirelength. Other joints may be spot or skip welded unless shown otherwise, or unless theymust be continuous. Grind welds where required.A. GRATING:Provide grating and frame to support it, in required size. Provide a band where edge ofgrating is open and visible, and at perimeter of cutouts. Fasten grating to frame at theends of the third bearing bar from each side of the panel and to intermediate supports atthe middle of the panel. Fasten grating with saddle style clips. Provide toe guards atopenings in gratings where conduit or piping extends through grating flooring. Toeguards may be 3/8" x 4" steel plates or 3" x 4" x 1/4" steel angles bolted or welded tograting.B. ACCESS LADDERS: NOT APPLICABLEInstall access ladders at locations specified. Provide steel clip angles at each leg andattach to concrete floor with expansion bolts. Provide steel strap supports to ladder legsand attach to construction with expansion bolts or by welding, as appropriate.C. SAFETY TREADS: NOT APPLICABLEInstall safety treads at each concrete step on the interior and exterior of the building.Safety tread shall be cast into concrete so that top of tread is flush with concrete surface.D. HATCHWAY: NOT APPLICABLEFrames shall be cast in place with the concrete structure. Provide copper or PVC tubingdrain and attach to drain nipple and extend to the outside. Hatchway shall be set plumband level.E. JOIST ANCHORS:Furnish a steel anchor plate for each joist seat fabricated of steel plate with stud anchors.Unless noted otherwise, anchors for "K" series joists shall be 4" x 6" x 1/4" inch plateswith two (2) 1/2" x 5" inch long stud anchors, and anchors for long span joists shall be 5"x 9" x 1/4". Anchor plates shall be cast into concrete masonry tie beam at joist locations.F. ANCHOR PLATES:Furnish steel anchor plates to be cast into concrete structure and to be used for attachingprecast concrete panels or steel members. Anchor plates shall be unpainted steel, exceptfor where plates are installed in exterior surfaces or within one inch of the exteriorsurface which shall be hot dip galvanized after fabrication.05500-10