south carolina seismic zone map


dnr.sc.gov/geology/index.html.

Earthquakes in South Carolina There should be straps on that side of window also. Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of South Carolina which ranges from USDA Zone 7a to USDA Zone 8b. There is more information on bottom chord truss bracing at my Truss Bracing Requirement Page. Rocks and Minerals Kit At 7.3 magnitude, the Charleston earthquake of 1886 was the largest quake to ever hit the Eastern United States. Clendenin, Jr., Patrick D. Duff, and C.S. Take this brief survey to help us improve your access to geologic data and information.

Earthquake Notification Service
Earthquakes in South Carolina They are installed at about 10' intervals and are in addition to the wind zone braces which are often added later. See our Truss Bracing page for more info. ... Station Listings and Detailed Map of MPSSZ. South Carolina Water Plan Here is another picture of the blocking at the gable with a 2x4 on top of it (good work). The Hardy Frame website has installation manuals available for download. Here is a closeup view of the strap at the gable end. The coverage status map above displays each of South Carolina's quadrangles at this scale, and their respective mapping and publication information. South Carolina averages 10–15 earthquakes a year below magnitude 3.

Lots of nails are used. Geologic mapping in the state of South Carolina has been done at a variety of scales; however, the standard scale of geologic maps produced in South Carolina is 1:24,000. Horizontal or Vertical panel orientation is treated equally for prescriptive solutions. Remember these are only typical recommendations for buildings up to a certain size.

document.write(new Date().getFullYear()); Overview of the Geology of South Carolina.

Stratigraphic revision of the Cooper Group and the Chandler Bridge and Edisto Formations in the Coastal Plain of South Carolina by Robert E. Weems, L. Barry Albright, Laurel M. Bybell, David J. Cicimurri, Lucy E. Edwards, W. Burleigh Harris, William C. Lewis, Jason E. Osborne, Albert E. Sanders, and Jean M. Self-TrailSuperimposed oblique extension in the South Georgia Rift by C.W. Home Inspections in Summerville (29483, 29485, 29486 zip codes), also Goose Creek (29445), Moncks Corner (29461), Ladson (29456),  Mt. Earthquake Notification Service (mainly along the coast) Some of these have to do with the type of windows and roofing materials and how they are nailed for example.
Wall sheathing nails not closer than 3" o.c.

Notice that the wall is braced to the roof plane instead of diagonally to another braced wall. on left is one that was added after construction so as to satisfy the requirement of a bolt at the end of a plate section. The building designer may have additional requirements so always check the plans. The bottom chord truss braces are required during erection and can become permanent lateral braces which are required. South Carolina Water Plan Find local businesses, view maps and get driving directions in Google Maps. When these are used the header is usually ran across the entire wall as seen below. This is because prescriptive requirements for this change according to the shape of the building and other factors. Note* These braces pictured at left is in addition to the continuous bottom chord truss bracing which is typically installed every ten foot or so. Archived Survey News More information on this type of anchor can be found at this link. At left it is being used to brace an interior non load bearing wall. SEGSA Presentations Meteorites Hardy Frames like the one in this Charleston home are typically attached using massive bolts. Here is another pic to help you understand the prescriptive gable end wall blocking requirements. Also visible are the 3x3 plate washers. The coverage status map above displays each of South Carolina's quadrangles at this scale, …

Detailed Description. Hardy Frames like the ones shown at left was the choice of this engineer. Carbon Sequestration Mineral Resources Sometimes trying to figure out the requirements for nailing patterns, sheathing and hold down requirements can be a bit of a mystery. Image Dimensions: 720 x 540.

Some people forget the cripples above the header are strapped too. Example of 3x3 plate washer. The strapping at the window opening is required even if the wall is solidly sheathed. The Palmetto state has a seismic past and will, no doubt, tremble again as quakes shake the ground beneath our feet.Recent Earthquakes. Helpful Links. South Carolina Hardiness Zones for Selected Cities and Locations. This bracing if present still doesn't eliminate the need for bottom chord truss bracing.

They are used in high wind areas where the required percentage of sheathing due to window and door openings cannot be achieved. In the corner you can see an example of hold down device used to stabilize garage wall. HowardShoreline Change Analysis and Forecast, Edisto Island Complex, South Carolina by Briget C. Doyle and Madelyne R. Adams$18.00, Paleozoic-Mesozoic Tectonic History of the Western Inner Piedmont Based on Superimposed Structural Relationships, South Carolina and Nearby North Carolina, Southern Appalachians by John M. Garihan$10.00, Links

If shutters are not used then precut 7/16" osb panels can be used.

The South Carolina Seismic Network If you are visiting this site because you think you have felt an earthquake, please report your observations at: Did You Feel it? Photo Galleries

This article has mainly dealt with framing requirements but there is also other requirements for homes built in some high wind areas.

Picture shows how the floor is blocked in the first two joist spaces. Although the 1x4 let in corner brace as seen at left is only good for wind zones below 100 mph and seismic categories A and B ( to meet the braced wall requirement) it is still quite useful technique to brace walls in certain other situations. Flood Mitigation Program It can be found here. It does not matter if the sheathing is hung horizontally or vertically as long as the edges are blocked. Bear in mind that interpretations and enforcement vary among inspectors and jurisdictions. Hydrology Section The mission of the South Carolina Geological Survey (SCGS) is to provide reliable, unbiased scientific information to public and private decision makers involved with land-use planning, environment, and economic development. Spacing of foundation straps like the ones shown in the picture on this Charleston home are determined by the architect or engineer who drew the plans.

If you see a quadrangle that is listed as "not mapped", but are interested in whether any geologic information is available for that specific quadrangle, please contact the South Carolina Geological Survey via email morrowr@dnr.sc.gov or phone (803) 896-1214.

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