During a hurricane, most construction damage caused by high
winds occurr at the joints. A significant reduction
in wind damage from hurricanes can be achieved
if buildings are to be constructed with new materials
being developed at the University of Maine. This
new technology using fiber-reinforced polymer
strengthens the roof and wall joints of a building,
increasing the structure's ability to withstand
high winds by 50-100%.
The center recently obtained patents on two products
that can make buildings less vulnerable to the
destruction wreaked by hurricanes. One is a building
panel into which a layer of composite is inserted.
The reinforced layer, which is as strong as steel,
works to prevent nails from being ripped out,
thus securing the joints and helping to keep the
building together. The other patented product
is made up of a strip of composite applied to
the panel joints of a roof. The strip bonds to
the joints like putting duct tape over the panels
to keep the roof together. A structure currently
designed to withstand winds of 200 km/hour should
be able to sustain winds of 270 km/hour with this
new reinforced product. The technology will be
made available, upon completion of research.
A new highway in Wisconsin state of USA has been
constructed using prefabricated FRP (Fibre Reinforced
Polymer) grid system, instead of the conventional
steel bar grid. Generally, the steel bar grids
used are prone to corrosion after some time. Their
life gets shortened. The new concept would provide
a longer life to bridges because the FRP grids
do not corrode at all. The prefabrication of FRP
grids allow ready-pour of concrete, saving construction
time. The cost of building this first FRP grid
bridge, higher than that of a traditional bridge,
is expected to reduce with wide usage of the new
system.
|
{{comment.DateTimeStampDisplay}}
{{comment.Comments}}