ORD 1778 - Laserfiche WebLink

3. As to Sections 20.08.045 (fire extinguishing systems), the National Fire Protection Association (NFPA) is a nationally recognized organization of building, fire and insurance industry representatives. NFPA 13-D is a minimum residential fire sprinkler specification, which has been amended. Because NFPA 13-D does not require that sprinkler heads be installed in areas of ancillary residential use (attics, garages, etc.) and without worry of lines freezing in these areas, this national standard inadequately addresses the needs of the City of Pleasanton. A more appropriate local amendment to the National Standard to provide fire protection in areas of homes is the City of Pleasanton Standard 9-3. 4. As to Sections 20.08.045 (fire extinguishing systems), 20.08.048 (automatic fire extinguishing systems), 20.48.049 (Pleasanton sprinkler standard), 20.08.050 (roof coverings), the City of Pleasanton requires additional built-in automatic fire protection systems to address possible delay in response due to the local conditions set forth above. 5. As to Sections 20.08.053 (footing and foundations), 20.08.055 (minimum slab thickness), 20.08.057 (portland cement plaster on studs), 20.08.034 (bracing), 20.08.038 (columns), 20.08.039 (detailing), 20.08.042 (Table 16N, item #3, 4 amended), 20,08.044 (special inspection), 20.08.046 (nondestructive testing), 20.08.054 (seismic provisions for structural steel buildings), 20.08.056 (design methods), 20.08.058 (AISC amendments), 20.08.062 and 20.08.064 (foundation investigation), 20.08.066, 20.08.068 and 20.08.072 (soils review and reports), 20.08.074 (design methods), 20.08.076 (load and resistance factor design), 20.08.078 (allowable stress design), the City of Pleasanton is located in a very active seismic area (seismic zone 4) and is located roughly between the Calavaras and Greenville faults. The topography of the City of Pleasanton is such that significant areas of the City are either in an ancient swamp basin or on slopes. The great majority of soils (based on soils reports on file) in the City are of a clayey material. This clayey material is susceptible to constant expansion and shrinkage, which adversely affects the foundation of any structure, but particularly foundations without reinforcing steel. Recent seismic events such as Loma Preita and in Southern Califomia provided hundreds of examples of damage to plain concrete footings and heaving in plain concrete slabs. It is therefore appropriate to limit the use of these unreinforced concrete installations, as the cost to repair is extremely expensive in contrast to the nominal cost of footing reinforcement at the time of original installation. The poor soil that these foundations and slabs must rely on to hold up buildings then are of vital importance to constructing a building. It is sensible then that a soils investigation be completed by a registered professional with both field and final reports submitted to the City for verification. It is imperative for this City in seismic zone 4 to require that the design methods for LRFD, load and resistance factor design as well as allowable stress design be of the highest standard the current code will allow. Where required by necessity special inspection and testing by outside approved agencies can augment existing 4