Scientists simulate hurricane-force winds in the lab (w/ Video)
A conventionally constructed home begins to break apart as a fortified home stands fast during a test of home construction materials at the Institue for Business and Home Safety in Richburg, S.C., Tuesday.
Researchers used more than 100 giant fans to create hurricane-force winds in an experiment Tuesday that crumpled an ordinary home within minutes but left a better-built home standing at its side.
Authorities said the experiment conducted in the cavernous Insurance Center for Building Safety illustrated the superiority of fortified building materials against materials and methods used in conventional home-building.
"This is an opportunity to create demand for better construction," said Tim Reinhold, the center's chief engineer. The Richburg facility was built by insurance companies in a bid to find ways to reduce damages and losses from natural disasters.
The conventional home took minutes to collapse in 96-mph winds similar to those of a Category 2 hurricane; once the house began to shake, the end came seconds later. Reinhold said the stronger house cost about $5,000 more to build but suffered only cosmetic damage in the same winds.
This video is not supported by your browser at this time.
Reinhold said builders normally won't use higher-end materials unless those are required by building codes or requested by homeowners. He hopes the images of one house left standing while another lay in ruins is persuasive.The giant fans simulated the wind profile of three actual storms with gusts up to 100 mph or higher. Both houses remained standing after two tests of less than 10 minutes each, so researchers opened the front door on each house and the conventional house collapsed in less than 10 minutes.
"You saw how quickly it went once it started to go," said Julie Rochman, president of the Institute for Business and Home Safety. "The bottom line question you have to ask yourself is which house would you rather be living in?"
"We want to build better going forward," Rochman added, noting metal straps in the stronger house secured the building on its foundation and the roof atop the walls.
The conventional house in the test was built to the standard required in the Midwest. Houses in coastal areas would typically have more reinforced construction, Reinhold said.
Even with its front door open and the wind buffeting all its walls and the roof, the fortified house had no structural damage, researchers said.
In contrast, the conventional house suffered significant damage to its roof, siding and a window in the first two storm simulations. Even if the conventional house wasn't completely blown away, it would have needed significant repairs, experts said.
Copyright 2010 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
-
From lemons to lemonade: Reaction uses carbon dioxide to make carbon-based semiconductor,
28 comments
-
Every black hole contains a new universe: A physicist presents a solution to present-day cosmic mysteries,
215 comments
-
New silicon memory chip developed,
16 comments
-
Thioridazine kills cancer stem cells in human while avoiding toxic side-effects of conventional cancer treatments,
2 comments
-
SpaceX private rocket blasts off for space station (Update),
41 comments
-
electromagnet core dereference between hard and soft iron
1 hour ago
-
Measuring water pressure in an open tank
11 hours ago
-
Question from a non-engineer: Pulley Systems
19 hours ago
-
Formula to calculate psi required to deliver gpm through nozzel
May 23, 2012
-
Introduction and general help regarding poers..
May 23, 2012
-
Is there a known treshold between diffusion and Bernoulli's flow?
May 22, 2012
- More from Physics Forums - General Engineering
More news stories
Computers excel at identifying smiles of frustration (w/ Video)
(Phys.org) -- Researchers at the Massachusetts Institute of Technology (MIT) in the US have trained computers to recognize smiles, and they have turned out to be more adept at recognizing smiles of frustration ...
HyperSolar shows dirty water no barrier to power world
(Phys.org) -- The Santa Barbara, California, company, HyperSolar, is set to transparently share the ups and downs of its research experiences toward the companys ultimate vision, successfully producing ...
Solar plane ends first leg of intercontinental bid
The Swiss sun-powered aircraft Solar Impulse landed safely in Madrid early Friday at the end of the first leg of its attempt at an intercontinental flight without using a drop of fuel.
Technology / Energy & Green Tech
2 hours ago |
5 / 5 (1) |
1
Obama calls for Congress to enact 'green' tax credits
President Barack Obama urged Congress on Thursday to extend tax credits for clean energy companies the White House says are responsible for some 37,000 jobs.
Technology / Energy & Green Tech
2 hours ago |
not rated yet |
0
Goldman to plow $40 bn into green energy
Wall Street giant Goldman Sachs plans to invest $40 billion into projects linked to renewable energy over the next decade, a company spokesman said Thursday.
Technology / Energy & Green Tech
2 hours ago |
not rated yet |
0
OmniVision tops up sensors for cameras, phones
(Phys.org) -- OmniVision has announced two high-resolution image sensors for the digital still and digital video camera market (DS/DVC) and higher end smartphones. In end-user language, it is a claim for superior ...
Is a classical electrodynamics law incompatible with special relativity?
(Phys.org) -- The laws of classical electromagnetism that were developed in the 19th century are the same laws that scientists use today. They include Maxwell’s four equations along with the Lorentz la ...
Dinosaur with tiny arms unearthed in Argentina
Argentine experts have discovered the near-complete remains of a new species of Jurassic-era dinosaur that stood on its rear legs and had tiny arms, according to a leading paleontologist.
Organic carbon from Mars, but not biological
(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules ...
In nanorod crystal growth, nanoparticles seen as artificial atoms
In the growth of crystals, do nanoparticles act as "artificial atoms" forming molecular-type building blocks that can assemble into complex structures? This is the contention of a major but controversial theory ...
First direct observation of oriented attachment in nanocrystal growth
Berkeley Lab researchers have reported the first direct observation of nanoparticles undergoing oriented attachment, the critical step in biomineralization and the growth of nanocrystals. A better understanding ...