In Haiti's Rebuilding, Calls For Stronger Structures

A year ago in Haiti, a magnitude 7 earthquake turned Port-au-Prince into a death trap. Engineers say casualties could have been avoided if buildings had been built better, so as Haiti rebuilds, they're trying to improve standards. But poverty and corruption pose considerable challenges.

In the capital, there is still so much rubble on sidewalks that people walk in the streets. Everywhere buildings sag in a state of semi-collapse. When engineer Pierre Fouche returned to Port-au-Prince last year after the quake, he hardly recognized his hometown

"When I got there, it was a shock," he said. "Basically, it was like I lost all of my landmarks."

When the quake hit, Fouche was studying earthquake engineering at the State University of New York at Buffalo. He knew that Haiti lacked building codes, that people built houses on steep hillsides or on soft ground, and that they used shoddy materials. And now he fears the city will rebuild the same way.

"Some people, they are simply starting to reconstruct their homes because they need someplace to live," he says. "And this is actually tragic."

It's tragic because the country lacks people who know how to build for earthquakes. At the time of the quake, Fouche says, he was Haiti's only quake engineer.

Simple Techniques For Stronger Buildings

"We don't know when the next one is going to happen," Fouche warns, "and if we don't want to have 200,000 people dying, then this is something that has to be done. At some point, the government will have to do it."

The government hasn't, however. So quake engineer Andre Filiatrault at the Buffalo university has organized earthquake seminars for Haitian engineers.

Filiatrault says most of the masonry buildings he has seen in Haiti can't handle the side-to-side shaking that a quake creates — the walls develop cracks and then holes.

"And if you have too much of a hole in the wall," he explains, "it can't support the slab above, and that's where all these slabs collapse on top of each other, which we call 'pancake collapse.' "

Filiatrault says that can be fixed cheaply, with something called "confined masonry." That's a cinder-block wall where, at the ends, blocks are set like a vertical row of teeth, with every other one missing. Then concrete is poured down and over the row of teeth to make vertical columns that anchor the wall.

"You cast your column into your wall such that it is an integral part of the wall," he says, "so basically the wall becomes interlocked into the column."