wind velocity for each wind load zone is the “fastest-mile” wind velocity, in miles per hour, at 30 feet about the ground ( V30) for Exposure C, as shown in Table 1611.3: Table 1611.3 Zone V30 (mph) 1 70 2 80 3 90 Figure 1611.1A WIND LOAD MAP - ZONE 1 List of Towns: Wind Load Zones Zone 1 Adams Chicopee Granville Lenox North Adams Sheffield 2010 maps were separated into three sets, where the maximum MRI is now 1,700-year. It features 10-minute, time-series wind data for 2004, 2005, and 2006. You can click on the map below to determine the basic wind speed for that location. Results (Table 1 ) show that NSCP 1992 basic wind speeds may be underestimated in Zone I, and overestimated in Zone III, similar to conclusions by Rosaria & Pacheco [2002a, 2002b]. 0000001520 00000 n DISCLAIMER: This map and borders are subject to errors. It also helps engineers and designers understand how to use those materials, and how to maintain them. Wind Zone 4, ASCE 7-05/2009 IBC Map 1: Wind Zone 4, 2007 FBC Map 3: Wind Zone 4, 2010 FBC/2012 IBC (Risk Category II) PGT is strongly opposed to Modification S5668 to modify section 1609.1.2.2 of the 2012 IBC which weakens the geographic requirements for Wind Zone 4 (“WZ4”). Select search option for full address, or road etc. Gallery. A wind zone is the rating of the amount of wind pressure a manufactured home, also known as an off-site built home, is built to withstand. West Coast Headquarters 310.615.4500 phone. Couche Vent Vitesse du Vent Temp Température HR Humidité Relative DPE … With the tool called "Earth Wind Map",you can see current wind speeds and weather and ocean conditions all over the Earth, in real time! Zone 4: Areas between the 130-mph and the 150-mph isotachs Figure G-1 shows the HUD wind speed map contained in 24 CFR 3280. hPa. Keywords: Anemograph stations, buildings and struc-tures, return period, wind speed map. 0000031402 00000 n A reproduction of this map is provided above … It is now possible to determine the wind zone from Table 5.4 using the information gathered – wind region, ground roughness, topographic class and site exposure. 640 x 712 png 115kB. What is a Wind Zone? 0000012183 00000 n The revised version of the wind zone map of Germany is based on a refined extreme value analysis for three physical phenomena which are leading to high gust wind speeds: the typical storms induced by strong frontal depressions, thunderstorms and additional gust fronts especially in weaker frontal depressions which are induced by down-drafts of cold air and/or by rain and which are not fully covered by the usual flow field models of frontal depressions. While wind zone calculations are best left to your builder or architect, … 4 Very strong 58.6–69.4 210–249 131–155 114–134 5 Devastating > 69.4 > 249 > 155 > 134 Enhanced Fujita Tornado Scale Ef Descriptive term Mean wind speed (3-second average) m/s km/h mph Knots 0 Weak 29–38 105–137 65–85 57–74 THE wind speed map included in the IS:875 (Part-3)1, serves the primary purpose of choosing the appropriate basic wind velocity for the design of buildings and struc … We use cookies to help provide and enhance our service and tailor content and ads. %PDF-1.4 %���� Note: An isotach is a map line connecting points of equal wind speed. Worldwide animated weather map, with easy to use layers and precise spot forecast. Wind Zone I equates to a 70-mph fastest-mile wind speed. Generally, the conductor sizes used on these lines have been standardized to help reduce construction times and spare requirements. Figure G-2 shows the wind speed map used for FEMA 85 and the NFPA standards. extended 15 inches (381 mm) into masonry and 7 inches (178 mm) into concrete and are ex-empt from the requirements of this section. 0000005720 00000 n Permission (Reusing this file) I, the copyright holder of this work, hereby publish it under the following license: This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. SurfWriter Girls: May 2016. Click Here To Link To Branz Wind Zone Maps. Note that some areas Design Wind Speed Calculations. Our Planet. Wind speeds in Zone IV (red), where the risk of extreme windstorms is greatest, can be as high as 250 miles per hour. Linn , Curry , and Baker are the most authorized counties in Oregon. 0000011751 00000 n Hauteur Sfc Surface 1000 1000 hectopascals 850 850 hectopascals 700 700 hectopascals 500 500 hectopascals 250 250 hectopascals 70 70 hectopascals 10 10 hectopascals. Wind Energy Zones™ makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. Whether you need to worry about your home’s wind zone classification depends mainly on where it’s located. That’s enough to power more than six million homes and deliver a step-change in … In the scope of the Eurocode 1, part 2.4 wind loads, the respective national authorities are responsible for providing a wind zone map and other meteorological information which are required to specify the design wind load for a structure. Wind zone speeds are determined as max potential over 3 second bursts. The zoning follows mainly the boundaries of the administrative districts. In wind zones greater than 110 mph, fastening is based either on ASTM D 3161 test (modified to 110 mph) or MDC PA 107-95 tests. You can find a complete map of wind zones in the U.S. here at the Manufactured Housing Institute. www.mercurynews.com . The definition of Wind Zone 4 will remain unchanged from that contained in the 2010 Florida Building Code with 2012 Supplement.
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