Structural Gymnastics Feature in Civil + Structural Engineering Magazine

JML-engineering-articleRecently, Civil + Structural Engineering Magazine printed an article featuring the work of John Looney and JML Engineering on the cover.

We were excited to see OUR work on the front page of your publication, but our name was never mentioned anywhere in the article. We wanted to clarify that we were responsible for the structural gymnastics featured in the cover article and not Arup.

The site is in the middle of busy Dudley Square in Boston Massachusetts. Traffic and construction issues prevented the placing of the wall bracing on the exterior of the building. JML Engineering designed all the bracing needed in the interior of the building. Shawmut Design & Construction and JML Engineering working closely together to coordinate the brace locations to avoid the existing structure and the proposed new structure. This bracing could not interfere with the erection of the structural steel. At some locations the building was so deteriorated additional bracing had to be added to prevent a collapse.

Shawmut was the low bidder on a public bid project with our design the cost of the wall bracing was over million dollars less than other bidders. The City of Boston benefited from these savings.

I would like to state that it was JML Engineering of Winchester MA, not Arup that did the structural design work for the wall bracing featured. Accuracy should be an essential part of any publication.

You can read the full article featuring our work here. Structural Gymnastics

 

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Construction Contributions Drive Hospital’s Rise in Haiti

building of Haitian construction using JML Designs.

Haitian workers are learning U.S.-style construction, tempered by budget and supply-chain realities.

As Seen in ENR.com
04/06/2011
By Tom Sawyer

Constructing any major hospital is a challenge, but building a 320-bed state-of-the-art teaching hospital for $16 million in the highlands of Haiti is fraught with difficulties.

Yet the aid group Partners in Health (PIH) is doing just that, using funds that come not from the government or the United Nations but from donations collected by the Boston-based group, which has worked for 23 years to boost the capacity of Haiti’s public health sector. The materials, services and cash contributions are coming from private companies and organizations, especially from companies in the U.S. construction sector.

The hospital, which will have six operating rooms, is rising in Mirebalais, 35 miles north of Port-au-Prince. “This is one of the first major public-sector projects to start in Haiti since the earthquake,” says Jim Ansara, PIH’s director of construction on the project. Founding Shawmut Design and Construction, based in Boston, in 1982, Ansara sold the business to its employees in 2006. While he still serves as Shawmut’s chairman, his main job these days is pushing the Haiti project. “I go down every week,” he says.

This is not new territory for PIH. Prior to the quake, the organization was co-operating 12 facilities with the Haitian Ministry of Health. But the Mirebalais hospital is its biggest project yet and requires construction of a safe, sustainable, high-tech facility in rural Haiti, where materials are scarce and workers are untrained in sophisticated construction. “The first day we started to lay block,” Ansara says, “we had 1,500 to 1,800 men line up to see if they could get jobs.” Thirty were hired. “We have people who are really good at stone, masonry and tile,” he says, but not so skilled in electrical systems, control wiring, acoustical ceilings and millwork. “We are desperately trying to gather volunteers willing to go to Haiti and work for a week.”

Planning for the project predates the Jan. 12, 2010, earthquake that killed an estimated 220,000 people and flattened much of Port-au-Prince. Originally, PIH aimed to build a 108-bed regional hospital. But the quake destroyed Haiti’s main teaching hospital in Port-au-Prince, killing an entire 150-student nursing class, so at the request of the ministry, PIH scaled up plans for the Mirebalais facility. The design was donated by Nicholas Clark Architects, Chicago.

Construction of the 180,000-sq-ft teaching hospital for all of Haiti began in July. Plans call for it to be operational by Jan. 12, 2012. Despite challenging conditions, including a refugee crisis and a raging cholera outbreak that began in a camp a mile away, work is well under way. “We are about to pour our first big roof slab, which is a milestone,” said Ansara in early April. “It is a complicated slab—complicated reinforcing for what is normally done on the island. We are very particular about connections between beams and columns, which is really important seismically,”
Even with the oversight of a fairly well-trained general contractor and engineers brought in from the Dominican Republic, it is a challenge to create reinforcing plans that can be executed by untrained workers, says John Looney, principal of JML Engineering, Winchester, Mass., the structural engineer. “The labor pool in Haiti is extremely unskilled,” he says. Designs for roof slabs, such as the one about to be poured, need to be straightforward so that they can be applied to all situations. While a more complex solution may require less rebar, it is more prone to error.

Looney says the hospital’s 24-ft to 28-ft spans and load-bearing walls are unlike the 10-ft by 10-ft unreinforced modules that typically are found in Haiti. “Imagine a table with four legs on it … a building that is a concrete slab with ring beams around it and four columns. For a larger building they add more modules. To go taller, they stack them up,” Looney says.

New techniques have to be learned. In a country where even large concrete pours are hand-mixed by big crews filling and passing along buckets, the proper use of a concrete mixer became a priority. At first, Looney says, they were getting very low strength because of poor mixing. “Instead of getting 3,000 psi concrete, we were lucky to get 1,000,” he says.

Workers also had to improve their block-laying skills. “It didn’t seem to bother them that joints are 3/8 inches thick in some places and up to three inches in others,” Looney says. Now, not only is the block work better, but the walls also are vertically reinforced with rebar, bonded to columns and grouted internally to serve as bearing walls and resist lateral loads. “The idea is to train the locals in a different type of construction than they are used to and to use as little material as we could,” Looney says. “It’s been a steep learning curve.”

But Ansara says it is working. “After we show the Haitians what’s expected, they get it,” he says, although he admits some of the workers think the project team is “overbuilding and too fussy.”

“We’ve had incredible participation from the American building industry,” Ansara adds. Thirty companies are on the donor list, including Hubbell Inc., Shelton, Conn., which supplied lighting fixtures, ceiling fans, boxes, plugs and switches, and the New England Council of Carpenters, which refurbished 400 salvaged wooden doors. To see a full list, as well as more on the project and a slide show, visit ENR.com.

Nepal in November

Nepal Hotel November 2010

Nepal Hotel

View John’s (AMC) Appalachian Mountain Club Trip to Nepal in November, 2010 and the 442 photos as he chronicled his hike through Nepal.

Partners to build Haiti hospital — JML is one of those Partners

Partners In Health, the Boston-based global health initiative that has been the face of health care in Haiti after the devastating earthquake six months ago, is building a new teaching hospital there.

The 320-bed, seven-building hospital will rise in Mirebalais in the rural Central Plateau, a 45-minute drive from the outskirts of Port-au-Prince, the hard-hit capital. It will become a national referral center when it opens at the end of next year, seeing as many patients as are seen at the other 12 clinics in Haiti where Partners in Health currently works.

The new hospital will also train doctors, nurses, and other health professionals. Teaching hospitals were among the 60 to 70 percent of health care facilities destroyed by the earthquake.

The project is the biggest in the 23-year history of Partners In Health.

“It’s ambitious,’’ Dr. David Walton, the group’s deputy chief of mission in Haiti and a physician at Brigham and Women’s Hospital in Boston, said by phone yesterday. “We are dealing with a tragedy that is unprecedented, so our response has to be unprecedented. This hospital is really going to be a centerpiece of our earthquake response.’’

Partners In Health had been planning to build a 108-bed hospital in Mirebalais that would bring comprehensive primary and prenatal care to more than 160,000 people in the region, treating people suffering from tuberculosis, HIV, malaria, and malnutrition. But after the earthquake, the Haitian Ministry of Health asked the organization to expand its plan, leading it to add improved diagnostic capabilities, an intensive care unit, and six operating rooms equipped for thoracic surgery.

While private hospitals in Haiti offer such facilities, they are beyond the reach of most Haitians, 80 percent of whom live on less than $2 a day, Walton said. The new hospital, which will cost Partners In Health $15 million to build, will treat all comers. Partners In Health has raised $85 million for Haiti earthquake relief.

Walton, echoing former president Bill Clinton’s words as the United Nations special envoy to Haiti, said the project will “help Haiti build back better.’’

Partners In Health is working with its Haitian sister organization, Zanmi Lasante, on clinical care. On medical education, it has formed alliances with such US medical schools as Duke and Dartmouth, Walton said, in addition to its original relationships with Harvard Medical School and Brigham and Women’s.