Dawn News

01 March, 2015 / 10 Jamadi-ul-Awwal, 1436
e-paper

Reducing earthquake damage

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


Email news tips and feedback to News Desk, submit blogs to Blog Desk and share photos and Videos with Special Projects Desk.

More From This Section

Do away with child labour

I WITNESSED an incident at a mall a few days ago that brought tears to my eyes. A mother of two young children...

Independent Pemra

private electronic media in the beginning did break PTV’s hegemony and contributed to the growth of democratic...

Pakistani Kejriwal

THIS refers to Aam Admi Party’s victory in the recent New Delhi elections. Arvind Kejriwal and his party have been...

Most Popular

Comments (0) Closed