In comparing the 2010 edition to the 2005 edition of the ASCE 7 we see that there are significant changes to the layout, format, load factors used for wind and basic wind speed maps. These changes affect how you determine wind design wind pressures.
ASCE 7-05 uses a single basic wind speed map. For each building risk category an importance factor is applied. Note that these importance factors only depend on the type of building, not where the building is located. The wind-load factor is then applied to determine the design wind pressure. For this edition (05), the ASD wind-load factor is 1.0 and the strength design wind-load factor is 1.6.
ASCE 7-10 uses three different basic wind speed maps for different categories of building occupancies. These maps provide basic wind speeds that are directly applicable for determining pressures for strength design. Consequently, the strength design wind-load factor was changed to 1.0 in this version. Simply put, ASCE 7-10 uses three maps based on strength design in conjunction with a wind-load factor of 1.0 for strength design (LRFD) and 0.6 for service level loads (ASD), while ASCE 7-05 uses a single map with an importance factor and wind-load factor of 1.6 for strength design (LRFD) and 1.0 for service level loads (ASD).
A strength design wind speed map brings the design approach used for wind 'in-line' with that used for seismic loads.
Multiple maps remove the inconsistencies inherent the importance factor approach. With multiple maps a distinction may be made based on location (i.e. hurricane prone vs non-hurricane prone which also changes the recurrence interval).
New maps establish a more uniform return period for the design-basis winds.
The maps more clearly inform owners and their consultants (that's you) about the storm intensities for which designs are preformed.
ASCE 7-10: 3 wind speed map based on 3-sec gust at 33ft above ground. The different maps are 'calibrated' to strength level design (LRFD LF=1.0) and also include building classification and location.
ASCE 7-05: (1) wind speed map based on 3-sec gust at 33ft above ground. Importance factors and Load Factors are used to increase design pressures.
EIA-TIA-222 Rev G: Wind speeds are similar to 7-05 with different definitions of classification of structures and gust effect factors.
Interestingly enough new research gathered since 2005 indicated that design wind speeds should be reduced (they also note that the overall rate of 'intense' storms increased). Therefore it is likely that you will noticed reduced wind pressures along coastal regions.
I am design a glass pavilion for my dissertation. How do you design a glass shear wall?
Well that's a good question. To which my first response would be – very carefully. I would start with the book "Structural Use of Glass" by Haldimann, Luible and Overend. This was state of the art in 2008 and has lots of good references. I'd be curious to know if you come across something else.