Laserfiche WebLink
• <br />4D <br />• <br />Wind and "Mind -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 light poles and tall trees were noted on the east side of <br />the buildings designated for use as an HES. Northern, Southern, Eastern and Western areas are comprised <br />of heavily wooded fiat topography offering limited exposure. Noted on the northern portion of the campus <br />was unsecured playground equipment and the western portion 2 unsecured mobile homes, unsecured <br />playground equipment, and 6 unsecured portable classrooms. There is limited exposure to large and small <br />wind-borne debris within 300 feet of the facility. The wind parameters used in the design was based on <br />ANSI A58.1. <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 8" CKU 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 />114" full development fillet welds. Tlie roof is flat with a 3' 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 fomi 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 12% of total exterior wall space. No slsutteringfprotective <br />system was in place for either windows or exterior doors. <br />The stringency ranking of the model building code used for design and construction according to the State <br />of Florida Hurricane Shelter Evaluation Guidelines is a 4 on a scale of 0.4, the most stringent being 4. <br />The building was in good condition with no visible signs of damage <br />Life Safety/Emergency Power: <br />At the time of survey, clic building conformed to fire codes. There was an emergency power supply <br />generator on site which powers safety lights, fire alarms, kitchen equipment, exit lights, freezers and <br />emergency lighting. <br />Conclusions: <br />When analyzed using the criteria outlined in (lie ARC 4496 !,east -Risk Decision Making Guideline <br />