Guidelines for Earthquake Resistant Buildings

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A shaking of the earth caused by a sudden movement of rock bneath the Earth's surface. An earthquake occurs on a fault, which is a thin layer of crushed rock between two blocks of rock. A fault can range in length from a few centimeters to thousands of miles. Stresses in the earth's outer layer push the sides of the fault together. Stress builds up and the rocks slip suddenly, releasing energy in waves that travel through the rock to cause the shaking that we feel during an earthquake.

Earthquake Resistant Provisions in Masonry Buildings with Strip Foundation

Zone Max. Height Mortar Mix Bands Vertical-Reinforcement Diameter of Vertical Reinforcement Mortar Mix for Band/Vertical Reinforcement. Bracing of Pitched Roof.
III Four storey(Less than 15 m) 1:6 Cement sand            or 1:2:9 cement-lime-sand 1. Lintel band

2. Roof band/Gable       Band .

3. Plinth Band.

For Rock/Hard/ Medium soil-Not mandatory

for soft soil at joint and corners.

For Rock/Hard/ Medium soil-Not mandatory

for soft soil-single bar 12mm(TOR)or 16mm(MS)

1:3 Cement Sand or M 20 Concrete Bracing at Tie Level.
IV Four storey(Less than 15 m) 1:6 Cement sand       or 1:2:9 cement-lime-sand 1. Lintel band

2. Roof band/Gable       Band .

3. Plinth Band.

At joints and corners for Rock/Hard/Medium/soft soil

At jambs and openings of soft soil.

Single bar 12mm(TOR)or 16mm(MS) 1:3 Cement Sand or M 20 Concrete Bracing at Tie Level.
V Four storey(Less than 15 m) 1:4 Cement sand        or 1:1:6 cement-lime-sand 1. Lintel band

2. Roof           band/Gable       Band .

3. Plinth Band.

At Joint and corners .

At jambs of opening.

Single bar 20mm(TOR)or 25mm(MS) 1:3 Cement Sand or M 20 Concrete Bracing at

Tie Level.

 


Note:

  1. The buildings should be made of well -burnt bricks, solid concrete blocks, squared stones, stone blocks or hollow concrete blocks of adequate strength.
  2. Always consult and adhere to the Building Byelaws of the your city.