916 PACIFIC AVE 1ST FLOOR 2018-01-01 MF Import

Mr. Tim Tyler PaqE� 5 June� 19, 1991 D. Vertical clearance ehall t�e sev�n foot mini�nu�n cIlear accordinq to Section 702Qb)5. 4. El.evator Requirements A. The proposed hydraulic eleval:or located in the center of the Enerqency and Surqery Departsents is dedicated to the transport of patients betwe�en theae two floors. The Critical Care Departwent, wh.ich in t'he Euture will be located on the Second Floor N��rth abov� Surqery, has been centrally located for a strongi vertical connection L�etveen the three floore. The shaft is constructed as a two-hour, fire-rated enclosure eacording• tc� Sections 1709 and 5102. We propose prov:idinq positi.ve presevrization of the elevator shaft wit:h hoietway ventinq aocordinq to Section 510� to prevent the sryread of smake Erom floor to floor, in lieu of vest:tbules at euch level. Incorporatinq elevator vestibul��s a�iversely aff��cta the functional flow of patients on tw�� of the thr�se f loora. Section 1807 of the UBC requires vestibules in Subsection (h) , but this appears to be izpecial proviaions for B-2 and R-1 occupancies and noL- Type 7:-i. This section also references floors located more than 75 feet above the lowest level of iire department �cce�s. The top floor levtl of the Nortti Winq wfiere the elevator is located is 50 feet above the rear parking area and is �0 feet ahove the new parking d�sck. Please inform us if the proposed preesurization ie •�caeptable. S. l[iranll�a�ou� CoQ� Rp�iiru�nt• A. Pire-resistive conz�truction ehell be provided according to 7'able No. 17-A, ir�cluding three-hour protection of steel column, beams, ancl deck accordinq to UL Desiqn Numbers X827 and N805. B. Tl�e roof constructi.on ehall be Class �, accordinq to Table 3:!-A. C. Tl�e sloped qlazitiq and skyli��htE; ehall comply with Se�ctions 3402 and ]404. D. The axi� _ing automatic sprinkler syE�tem will be expanded into the new additions accord:nq to Section 76o2 (q) . E. Eqress from the north t.ower stairway and affected pedestrian areae will be protected accordinq to 5ection 4407 (d) .