The 2010 edition is the first edition of asce7 where the basic wind speed map from asce 7s previous editions has been replaced with three ultimate design. Asce2 abstract it is well known that the major change for wind design in asce 710 minimum design loads for buildings and other structures is the introduction of new wind speed maps that are referred to as ultimate wind speed maps in the 2012 international building code ibc. Asce 7 10 minimum design loads for buildings and other structures contains several changes regarding wind loads. Fixture and pole epa values are based on wind pressures and forces specified in ansi asce 710. Seismic data expanded to include 14 coefficients, the seismic design category, and both horizontal and vertical response spectra.
Technical changes include the introduction of new wind speed maps to be used with a 1. This helpful guide focuses on the wind load provisions of minimum design loads for buildings and other structures, standard asce sei 710, that affect the planning, design, and construction of buildings for residential and commercial purposes. Reintroduction of exposure d in hurricaneprone regions. Many front range communities have used that map to guide code wind speed definition. Minimum design loads for buildings and other structures. Significant changes to the wind load provisions of asce 7 10.
Areas within 1 mile of the mean high water line the average between the high and low tide where the wind speed is mph or greater, or any location where the wind speed is 140 mph or greater. Assessment of asce 710 standard methods for determining wind loads article pdf available in journal of structural engineering 911. Quickly retrieve site structural design parameters specified by asce 710 and asce 716, including wind, seismic, snow, ice, rain, flood, and tsunami. Your purchase of asce 7 16 includes access to asce 7 10. Minimum design loads for buildings and other structures, ascesei 710. The purpose of this paper is to discuss issues associated with asce 7 10 standard methods for determining wind loads on buildings and other structures that warrant comment, correction, or improvement. Ncsea webinar asce 710 changes in wind load provisions 22 facts about the asce 705 wind speed map in most of the nonhurricane us mainland, the mapped values represented a 50year mean recurrence interval in hurricane regions, the mapped values varied from 50 to 100 years along the hurricane coastline. Jan 31, 2019 while most of the country will appreciate some wind pressure reductions, there will be more regional variability nationwide than in previous editions of asce7 due to the new wind map contours. Asce 710 wind provisions and effects on wood design and construction philip line, p.
Minimum acceptable seismic resistance of existing buildings is a policy issue normally set by the authority having jurisdiction. This helpful guide focuses on the wind load provisions of minimum design loads for buildings and other structures, standard asce sei 7 10, that affect the planning, design, and construction of buildings for residential and commercial purposes. Check that your browser and pdf plugins are uptodate. I use these programs to verify the design pressures provided by the architects or to create them for estimating or engineering purposes. Calculation of wind loads on structures according to asce 710 permitted procedures the design wind loads for buildings and other structures, including the main wind force resisting system mwfrs and component and cladding elements thereof, shall be determined using one of the procedures as specified in the following section. Defines areas of the state requiring windborne debris protection see asce 710 wind map. Structural engineers association of colorado recommendations. This easy to use calculator will display the wind speed by location via a wind speed map as prescribed by the above building codes. This 2010 chart has not been adopted yet by the state of florida, so, for now the 2007 chart will rule.
Linear interpolation between wind speed contours is acceptable. Asce 710 with icces ac 428 criteria physical constraints of ac 428 wind method. The simplified procedure is for building with a simple diaphragm, roof slope less than 10 degrees, mean roof height less than 30 feet 9 meters, regular shape rigid building, no expansion joints, flat terrain and not subjected to special wind condition. Pdf wind load based on sni 1727 20 and asce 710 for.
Wind loads are important consideration in structural engineering in the design of a structure. This is a beta release of the new atc hazards by location website. Calculation of wind loads on structures according to asce 7 10 permitted procedures the design wind loads for buildings and other structures, including the main wind force resisting system mwfrs and component and cladding elements thereof, shall be determined using one of the procedures as specified in the following section. Overall, the new improvements made to the asce 7 16 wind provisions will result in more accurate reflections of the wind speeds being witnessed at. Required 10 inch minimum distance from roof edge or ridge. When using this map to determine epa readings, always use high end of range.
The major editorial change is a complete reorganization to a multiplechapter. Calculation of wind loads on structures according to asce 710. Asceawea rp2011 recommended practice for compliance of large. If the mapped wind speed is an allowable stress wind speed i. Improvements to asce 716 wind maps continuing education. The asce 7 10 provides a wind map where the corresponding basic wind speed of a location can be obtained from figures 26. Asce 710 minimum design loads for buildings and other structures contains several changes regarding wind loads. Asce 7 10 provides two methods for wind load calculation. Jun 19, 2019 asce 7 16 retained the asce 7 10 conventions but added a map for risk category iv, and ibc 2018 dropped the v ult term consistent with asce 7, while v asd persists. Asce 7 10 wind map asce 7 10 wind map fence framework the datasheet archive. Fbc 17 handles the case of asd design a little different, it modifies the wind speed used in the calculations to an asd velocity using equation 1633. Wind speed maps for the caribbean for application with the wind. The major editorial change is a complete reorganization to a multiplechapter format as done previously for seismic loads.
Wind velocity in asce 7 10 309201 6 asce 710, minimum design loads for buildings and other structures, introduces significant changes to wind load design. Pdf asce 710 wind loads alfredo granciano and peter. And, it is stipulated that the building category ii basic wind speed map shall be used for all building category iii buildings except health care facilities. Asce 710 and icces ac 428 determine design wind speed and calculate design wind pressures using asce 710 icc evaluation services acceptance criteria ac 428.
When viewing the wind maps, take the highest category number of the defined risk or occupancy category. Linear interpolation between contours is permitted. Asce 710 significant changes to the wind load provisions. An international building code version which refers to asce 7 10 is now being adopted in colorado. Quickly retrieve site structural design parameters specified by asce 7 10 and asce 7 16, including wind, seismic, snow, ice, rain, flood, and tsunami.
Changes to asce 710 wind provisions and effect on wood. Aug 23, 2019 in asce 7 10, we use ultimate wind loads and then the load combinations factors are applied if allowable stress design asd is being performed. Basic wind loads asce 7 10 page 3 of 21 note that in the previous version of this map the 2007 version, the wind speed in miami was 145 mph, not 170. The most significant reduction in wind speeds occurs in the western states, which decreased approximately 15% from asce 7 10 figures 1 and 2. Asce2 abstract it is well known that the major change for wind design in asce 7 10 minimum design loads for buildings and other structures is the introduction of new wind speed maps that are referred to as. Wind loads guide to the wind load provisions of asce 7 10. Asce 7 10 wind provisions and effects on wood design and construction philip line, p. Asce 7 10 uses wind maps with recurrence intervals of 700, 1700, and 300 years for risk categories ii, iiiiv, and i respectively within the. For building codes based upon asce 7 10 and later, basic wind. Wind design in asce 710 incorporates several major changes. Assessment of asce 710 standard methods for determining wind.
New asce 7 hazard tool identifies hurricaneprone regions and wind borne debris regions, as defined in asce 7 16, chapter 26 and asce 7 10. Florida building code 2017 wind loads meca enterprises inc. Adding to skycivs already list of free tools, is the new wind load calculator for asce 7 10, as 1170. Changes to wind calculations for rooftop solar joe cain, p. Caddtools asce 7 10 wind load program by howard goding. Establishing clear and correct criteria for wind design has been a challenge for jurisdictions in special wind regions. To meet the requirements of chapter 1 of the standard, a new map is added for risk category iv buildings and other structures figure 3.
Asce 710 wind provisions and effects on wood design and. Fixture and pole epa values are based on wind pressures and forces specified in ansi asce 7 10. Local code may require wind speeds other than those shown on map. The hurricane importance factor in asce 7 and it predecessor ansi a58. Wind loads guide to the wind load provisions of asce 710. The occupancy category is defined and classified in the international building code. New asce 7 hazard tool identifies hurricaneprone regions and wind borne debris regions, as defined in asce 716, chapter 26 and asce 710. Serviceability wind speeds now returned with site wind speed. Acceptance criteria for modular framing systems used to support photovoltaic pv panels ac 428 is required to obtain an icces. The 2010 revision of the standard significantly reorganized the wind load provisions, expanding them from one to six chapters.
Among the changes are new wind speed maps that vary by risk category e. The 2010 edition is the first edition of asce 7 where the basic wind speed map from asce 7s previous editions has been replaced with three ultimate design wind speed maps. Guide to wind load analytical procedure of asce 710 the. Values are nominal design 3second gust wind speeds in miles per hour ms at 33 ft 10m above ground for exposure c category. Asce 710 wind load calculation example skyciv cloud. The wind load provisions have undergone the most extensive revision since the 1995 edition the standard. Asce codes and standards director paul sgambati, american society of civil engineers awea senior technical programs manager john dunlop, american wind energy association asceawea rp2011 committee leaders committee secretary leonardo duenasosorio, rice university. Provides requirements for general structural design and includes means for determining various load and their combinations. Asce sei 7 10 is not retroactive and usually applies to existing structures only when there is an addition, change of use, or alteration.
1376 374 1098 617 1486 843 1264 1012 619 1527 1494 333 301 130 4 152 1214 1546 958 1110 1 394 828 707 933 172 1249 1482 1506 75 187 264 122 765 1015 535 1490 951 582 1399 1342 1367 1062 1489 769 260 434 837 1183 413