(HARVEY, ILL) Aug. 21, 2007 Earthquakes are often associated with
collapsed buildings, flattened homes and widespread devastation. The
magnitude 7.9 earthquake that shook Peru last week displaced tens of
thousands of people and caused millions of dollars in damage. However,
findings from a recent earthquake simulation test conducted on a steel
framing system may help decrease future destruction caused by an
Allied Tube & Conduit (ACD), together with the University of California, San
Diego (UCSD), recently shook Dynastructure, a pre-engineered, cold-formed
structural steel framing system, at UCSD's Englekirk Structural Engineering
Center. ACD is the first manufacturer to conduct a shake test using a whole
building for this type of system in the United States. Typically, these
tests are conducted on individual components rather than complete
The seismic test, which took place in June 2007, shook the one story
building (32 ft long x 20 ft wide x 12 ft tall) for 30 seconds, simulating a
7.3 magnitude earthquake.
Although it was expected that the simulation would be adverse to this type
of structure, not only did it not fail, it didn't exhibit any signs of
faults, cracks or connection issues, said Jeff Galland, director of
engineering and operations, S2 Specialty Structures.
The first shake duplicated the ground motions of the notorious Landers
earthquake that rocked California in 1992. The magnitude 7.3 earthquake was
one of the most powerful documented earthquakes to occur in the contiguous
48 states in the last 40 years, and caused almost $100 million in damage.
A second test conducted on Dynastructure increased the intensity of the
shake by 1.5 times to represent the International Building Code's Maximum
Considered Earthquake. This shake was equivalent to a 2,500-year earthquake,
and yielded the same results no damages.
We wanted to provide the capability to more accurately engineer structures
constructed with light gauge steel framing systems, said Michael Mendralla,
general manager, Allied Tube & Conduit Construction Division. Our results
demonstrate that Dynastructure is able to withstand even the most powerful
of natural forces.
Added Galland, In comparison to Dynastructure, wood-framed buildings shaken
at this magnitude would suffer significant and appreciable damage.
When erecting the system for the test, the manufacturing and construction
teams used the standard procedures to ensure that what was tested
represented a typical Dynastructure product.
Dynastructure is a pre-engineered steel framing system that is suitable for
all types of structures, from commercial and light industrial to
residential, recreational and essential facilities. Components are built
through precision fabrication using cold-formed tubular steel elements
pre-drilled to precise measurements and welded in a tight tolerance jig.
Custom-engineered to exact specifications, Dynastructure frames buildings
faster and for a lower cost than other construction methods.
About the Englekirk Structural Engineering Center
The Englekirk Structural Engineering Center is a Charles Lee Powell
Laboratory test facility within the Department of Structural Engineering at
The University of California, San Diego. The center is a one-of-a-kind
facility equipped with the worlds largest outdoor shake table allowing
researchers to perform dynamic earthquake tests on large and full-scale
structural systems. For more information about the UCSD Structural
Engineering program, please visit www.structures.ucsd.edu
Dynastructure pre-engineered, cold-formed steel framing systems frame
buildings faster and for a lower cost than other construction methods such
as wood and standard cold-formed steel framing or concrete block.
Custom-engineered to exact specifications, the system is easy to erect
on-site from factory-fabricated components, is fire-resistant and strong,
lightweight and durable enough to meet facility requirements for everything
from restaurants to schools, fire stations and other municipal structures.
More information about Dynastructure is available by calling 877.336.5542 or
visiting www.dynastructure.com/shake .
About Allied Tube & Conduit
Allied Tube & Conduit is a leading manufacturer of cold-formed steel
framing, pre-engineered tubular building systems and truss products for the
commercial construction industry. Key products include Studco, Dynatruss
and Dynastructure. Headquartered in Harvey, Ill., Allied has
state-of-the-art manufacturing facilities in Phoenix; Rancho Cucamonga,
Calif.; Monee, Ill.; and Houston. Allied is also a market leader in the
mechanical tubing, fire sprinkler pipe and electrical conduit markets, and
is the largest business unit of Tyco Electrical & Metal Products. For more
information about Allied's commercial construction offerings, visit
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