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Understanding Seismic Zones & Steel Reinforced Concrete Domes

In order to understand the Seismic Zoning method and how it pertains to the Steel Reinforced Concrete Dome, we must first understand what effective peak ground acceleration means and how it is measured against gravity. First let’s discuss what is meant by ground acceleration. It is not unlike the feeling we have when a car […]

Building Survivability

The Steel Reinforced Concrete Dome is the most disaster resistant building that can be built at a reasonable price without going underground or into a mountain. A wind of 70 miles per hour blowing against a 30 foot tall flat walled building in open flat terrain will exert a pressure of 22 pounds per square […]

Concrete Dome Wind Analysis

Wind Speed: Pressure: 70mph 22 psf 100 mph 50 psf 150 mph* 100 psf 300 mph* 404 psf * Force 5 hurricane (worst) ** Force 5 tornado (worst) Example 1 Commercial building 30 feet high in exposure C (most severe exposure in open at terrain). Using design wind pressure from UBC 1985 Edition, section 2311.d, […]

Concrete Dome Seismic Analysis

Example Dome Diameter = 110’ Height of Dome = 37’ Thickness = 3” @ top and 8” @ bottom Ref: Billington 1985 Ed., p55 Pz= pcos <b> sin <a> P<a> = p<b> = 0 Membrane forces N<a> = apk1 cos<b> N<ab> = apk2 sin<b> N<b> =apk3 cos<b> Seismic Force (UBC 1985 Edition) V= ZSICKW (Formula […]

Dome vs. The US Air Force

What would happen if the US Air Force dropped a laser-guided 5,000 lb. bunker-buster bomb on a steel-reinforced concrete dome? Not much. This dome was built by a sister company in Iraq using Dome Technology’s patented thin shell dome construction methods. The GBU-28 Deep Throat 5,000 lb. laser-guided bunker buster bomb initially punched a “skylight” […]