The Fire Sprinkler Scope of work consists of replacing almost all the piping with new galvanized thinwall. The fire pump piping and wet standpipe piping will remain as is and will not be replaced. The existing sway bracing will be utilized since this is a post tension slab building. Each floor is looped with 2½” mains and 1¼" branch lines. Each floor is supplied by its owned dry valve. The underground is ran SW underneath the slab to the fire pump room. From the fire pump room, one main run's NE underneath the slab to a remote FDC. Another main is run SE underneath the slab to a heated chase. The dry valves are connected to the SE wet main in the heated chase. There are two dry manual standpipes, one next to each stairway. The inlet to the dry standpipes is near the remote FDC. There are 2½” hose outlets on each floor.



Building Department Scope:

(CITY CENTRE GARAGE STAIR REPLACEMENT PROJECT) (8-16-11 PLAN MODIFICATION TO CHANGE THE BARRIER DESIGN AT THE LOW HEADROOM CONDITION AT THE STREET LEVEL.) Fire sprinklers used to meet high rise provisions. To remove and replace 2 existing 80 foot tall exterior stairways serving an existing 8 story parking garage. All flights of stairs and intermediate landings will be demolished and removed. Work is to include new precast concrete intermediate landings and new precast concrete flights of stairs. In addition, at each floor level landing, damaged concrete will be removed at the open edges of the slabs and replaced with new concrete. The existing bottom steel reinforcing bars, oriented perpendicular to the deck edges, where the slabs are spliced are required to be maintained and not cut. New steel guards and handrails will be installed. A thin layer of concrete topping will be applied over the existing concrete floor slab at elevator doors. Special Inspection is required for the work listed on Sheet S0.03. Precast work is required to be done by a fabricator approved by the Building Official. The work is required to comply with the approved drawings, with the plan review report, with the structural design, and with all applicable codes and ordinances. The use of public property shall be as approved and limited by ACHD. Barricades are required to route pedestrians and vehicles away from the construction sites to mitigate the danger imposed by falling objects. Egress during construction shall be as approved by the Fire Department. The fire sprinkler system is required to comply with NFPA 13 as regulated by the Fire Department. **CJW**