Hardik' world

16

Transcript of Hardik' world

Page 1: Hardik' world
Page 2: Hardik' world

TO

HARDIK’SPRESTATION

Page 3: Hardik' world

Class Xa1Subject SSc Teacher

MRS. VINEY

Page 4: Hardik' world
Page 5: Hardik' world

• H

ow D

o Cy

clon

es O

ccur

?

Page 6: Hardik' world

The start of a cyclone is when air heated by the sun rises very swiftly which creates areas of very low air pressure. As the warm air rises it becomes loaded with moisture which condenses into huge thunder clouds.

Page 7: Hardik' world

Cool air rushes in to fill the void that is left, but because of the consent turning of the earth axis the air is bent inwards then spirals upwards with great force.

Page 8: Hardik' world

The swirling wind rotate faster and fast er, forming a huge circle which can be up to 2,000 km across.

Page 9: Hardik' world

At the centre of the storm is a calm, cloudless area called the eye where there no rain and the winds are fairly light.

Page 10: Hardik' world

As the cyclone build up it begins to move. It is sustained by a steady flow of moist air.

Page 11: Hardik' world

The vulnerability of a human settlement to a cyclone is determined by its sitting, the probability that a cyclone will occur, and the degree to which its structures can be damaged by it. Buildings are considered vulnerable if they cannot withstand the forces of high winds. Generally those most vulnerable to cyclones are lightweight structures with wood frames, especially older buildings where wood has deteriorated and weakened the walls. Houses made of unreinforced or poorly-constructed concrete block are also vulnerable. Urban and rural communities on low islands or in unprotected, low- lying coastal areas or river floodplains are considered vulnerable to cyclones. Furthermore, the degree of exposure of land and buildings will affect the velocity of the cyclone wind at ground level, with open country, seashore areas and rolling plains being the most vulnerable. Certain settlement patterns may create a "funnel effect" that increases the wind speed between buildings, leading to even greater damage.

MOST VULNERABLE HOMES

Page 12: Hardik' world

Effects on Buildings

As a consequences of the storm surge and wind pressures acting on elements obstructing the passage of wind the following types of damage are commonly seen to occur during high wind speeds: Uprooting of trees which disrupts

transportation and relief supply mission. Damage to improperly attached

windows. Damage to roof.

Page 13: Hardik' world

SAFEConstruction

PRACTICES

During

Cyclone

Page 14: Hardik' world

1.Site selection.2.Platforms and orientation.3.Foundation.4.Wall Opening.5.Glass Paneling.6.Roof Architecture.

Page 15: Hardik' world

Itne paise main itna hi milega to

Page 16: Hardik' world

BYE BYE