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Date & Time in Bali

CURRENT LOCAL DATE AND TIME IN BALI:

Monday, 30th January 2023
1:35:41 am

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It is a misconception to believe that hurricane anchor is placed in the foundation. On the contrary, hurricane anchors shall be installed in the roof truss chords and connected to a column or stiff wall.

Any wind force creates an uplift force in a building. These uplift forces are normally harmless and do not need to be taken into account since the weight of the structure will sufficiently counteract with the uplift force an nivellate it. However, it is a different story with a hurricane force wind. These exrtremely high wind forces create tremendously high uplift forces and will blow the roof away when the roof truss system is not properly anchored. The uplift reaction forces are transferred to the foundation via the hurricane anchors, whereas the foundation anchors also need to be designed to safely absorb these forces (it is normal engineering practice to oversize the foundation to utilize its weight to a factor of 1.2 x the total uplift force). 

Prefabworld Bali International applies vertical steel rods, tighlty installed onto the truss chords as to deal wth the calculated uplift forces.

So far all of our units built in a cyclone area have safely sustained a hurricane force wind:

In September 2004 one of our buildings withstood hurricane Ivan that struck the Cayman islands
In November 2009 a 2-storey unit designed and prefabricated by us lost only some roof tiles when the island of Sta. Lucia in the Caribbean was hit by hurricane Thomas
Eary November 2013 the Phillipines were hard hit by typhoon Haiyan. Our A-2 model sustained the 315 km/h (196 Mph) storm

 

 

 

 

 


 

 

Prefab World Bali

Reviews from Prefab World Bali

On November 7, 2013 typhoon Haiyan, known as typhoon Yolanda in the Philippines, was the second deadliest on record that hit the archipelago killing over 4,000 peoiple which we deeply regret. The system's one-minute sustained winds reached to 315 km/h (196 mph), unofficially making Haiyan the 4th most intense tropical cyclone ever observed and made it the strongest tropical cyclone to make landfall on record. Our engineering department designs our units in cyclone areas to cyclone rating and have added a 10% additional wind force to the general cyclone design codes to cope with global warming, introducing stronger cyclones in the future. Our unit A-2 sustained typhoon Haiyan and survived. This is what the owner wrote us:
"There were minor damages and the roof remained fully in tact. Your clients should know though that this house was properly designed and built with typhoons in mind. Good job Prefabworld Bali International".
Review from: Ron Catto, Philippines
Project: 50 m2 unit
Date: 21-11-2013
Rating: 5 out of 5.

Read more testimonials from Prefabworld Bali International: click here
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