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i <br />40 <br />11 <br />Wind and Wind -Related Considerations: <br />Wind hazard types taken into consideration during site inspection include lay -down hazards, roll-over <br />hazards and debris hazards. Hazards in the form of tall trees were noted on the all sides of the building <br />designated for use as an HES. Northern and eastern exposures are described as flat, open and heavily <br />wooded with open playing fields located between school and wooded areas. Southern and eastern <br />exposures are flat with the southern portion heavily wooded and the western portion lightly wooded. The <br />southern portion contained Tightly constructed metal covering over metal benches. The eastern area <br />contained a lightly constructed metal covering over an unsecured bicycle rack and unsecured picnic tables, <br />There is a limited exposure to wind-borne debris within 300 feet of the facility. The building was designed <br />in 1986 to a wind speed of i 10 mph with a 1.1 importance factor applied to the design; there are no <br />obvious wind design flaws with the exception of lightweight metal open walkways between structures. <br />Building Characteristics: <br />A partial set of structural and architectural plans for this facility was provided for evaluation. A clearly <br />defined continuous load path from foundation to roof is present. Upon site inspection and review of <br />structural plans it was evident that the buildings' exterior walls are constructed of fully reinforced <br />cantilevered masonry and have no softspot areas. The plans called for an V CMU with a 4" brick veneer <br />wall construction. 5" pipe columns (standard weight] were employed extending from the concrete, steel <br />reinforced footers to top of walls. 36" steel truss girders (48" cic) are attached to bearing points with two <br />1f4" full development fillet welds. The roof is flat with a T overhang and decked with standard corrugated <br />metal decking, 4" lightweight concrete, and a modified bitumen roof covering. Roof design load is <br />calculated to be 60 lbs. per square foot with a net uplift load of 28 lbs per square foot. Mechanical <br />equipment was noted on the roof in the form of air handlers and large vents which were not securely <br />fastened, No evidence of ponding or degradation was present on the roof. All drains were clear and free <br />of debris. <br />Windows, of an unknown glass type, comprised 11% of total exterior wall space. No shuttcringlprotective <br />system was in place for either windows or exterior doors. <br />The building was in good condition with no visible signs of damage. <br />Life Safety/Emergency Power: <br />At the time of survey, the building conformed to fire codes. There was an emergency power supply <br />generator on site which powers safety lights, fire alarms, kitchen equipment, exit Eights, freezers and <br />emergency lighting. <br />Conclusions: <br />When analyzed using the criteria outlined in the ARC 4496 Least -Risk Decision Making Guideline <br />Compliance Summary, Glendale Elementary School was found to have characteristics which fall under <br />the categories of preferred, marginal and tion -compliant. <br />