Alert Sign Dear reader, online ads enable us to deliver the journalism you value. Please support us by taking a moment to turn off Adblock on Dawn.com.

Alert Sign Dear reader, please upgrade to the latest version of IE to have a better reading experience

.

Reducing earthquake damage

Email


Your Name:


Recipient Email:


This is with reference to the bureau report, ‘New building technique can cut quake damage’ (June 19).

It said that a full scale retrofitted confined brick masonry building seems to have performed better than un-reinforced buildings. This technique is over three decades old.

The modern technology, which is being currently practised in many third world countries, is the use of gadgets for base isolation and seismic dampers.

This is known as passive seismic resistant techniques.

Research on earthquake resistance around the world has indicated that seismic energy absorbing capacity of reinforced cement concrete and reinforced brick masonry buildings are prone to fail in a severe earthquake zone such as Quetta and Kashmir.

This is because there is an upper limit to their seismic energy absorbing capacity.

However, by installing base isolator pads and dampers in any building, it is possible to totally absorb the earthquake shock energy of a building, be it of bricks, re-inforced concrete or steel.

This technique is both cost effective and can be retrofitted in an existing structure also.

JAVED IQBAL RISHI Karachi

DAWN_VIDEO - /1029551/DAWN-RM-1x1

LARGE_RECTANGLE_BOTTOM - /1029551/Dawn_ASA_Unit_670x280


Comments (0) Closed