how do faulty constructional practices lead to loss of life and property during cyclones and earthquakes?

Question

please elaborate

Answer 1

If the building is not properly reinforced to withstand the variety of forces in an earthquake, it will collapse. The building cannot flex and move with the motions of the temblor.

Also, if the ground is not properly companceted or supported, liquifaction can make the building sink. Those extra stresses can tar the building apart.

Unreinforced brick masonry can dislodge. In the Great Quake and Fire of 1906, the fire marshall was injured (and later died) when a chunk of hte building came down on him.

Answer 2

usually they don't

its normally just a blame tactic after a disaster

in every cyclone, earthquake, etc, disaster there are buildings that didn't fall, buildings that would have fallen no matter how they had been built, and a very few buildings that fell or blew apart that might not have if better constructional practices had been followed

these practices cost more, the buyer may not want to pay for the increased protection, it seems like it should be his choice

in a very very few cases, a builder misrepresents his construction and fails to provide what the buyer has ordered (in order that he, the builder, can make extra money)

this is illegal nearly everywhere and unethical absolutely anytime

Answer 3

people just try and build stuff really really fast to make the biggest profit, so they may put in systems that don't work very well or are incomplete (such as putting in a fire escape that only goes halfway down.) Or they ignore possible natural disasters when they build (not employing building techniques to withstand earthquakes) Or they build on ground that's really just compacted rubble (For example, after the 1906 quake, a lot of the rubble from the buildings got compacted and piled up down by the harbor and they built shanties on it. Times change, and that area is now really nice and really expensive. It's also going to be really flat after the next big quake.)

Answer 4

I think faulty is a strong term. While structures can be built to withstand such extreme events; most places are not in active earthqauke zones or coastal areas. It would be overly expensive to built every structure to that standard. You don't need a cyclone resistant building in Berlin for example.............