The failed Florida overpass should be a shining example of how to speed Bridges.


Most modern concrete is reinforced with metal, and financial intelligence rooms are no exception. Inside, it had steel bars that tightened on the day of the crash. ‘it’s a delicate job,’ Mr. Myers says. “You can create torsion or eccentricity in the structure,” he said. However, it is not clear whether such a situation would occur, although overly stretched cables may lead to dangerous distortions or cracks.
On March 13, the chief engineer of the bridge project left a voicemail message from the Florida transportation department informing the agency of the split in the north end of the span. Unfortunately, the message was not retrieved until after the crash. In a statement, the FDOT said it had not been notified of any safety issues at the meeting the day before the bridge collapsed.
The cracks do not necessarily mean the bridge will fail, myers said. “Some cracks are not necessarily bad,” he said. “It depends on where they are, how wide they are, and things like that.”
So what led to the design, construction or the collapse of ABC technology? The answer will not come until the national transportation safety board, which investigates civil traffic accidents, completes its investigation. But, myers says, “the thing that triggers it” is the site process, design or manufacturing problem or its combination. “There’s something there.” The Bridge designer, FIGG Bridge Engineers, Inc., says it is working with authorities. “This has never happened in our 40-year history,” the company said in a news release.
Before its collapse, the bridge was popular not only for its innovation but also for its potential economic and social benefits. It aims to connect the town of sweetwater with the university and make it safer to cross the busy street. The project received $11.4 million from the U.S. department of transportation in 2013.
Last week, as the car drove through Miami’s busy southwest eighth street, they may have noticed a new bridge at Florida international university. On March 15, five days after the bridge was erected, 950 tons of concrete gave way, killing six motorists.
Originally hailed as a bridge for engineering skills, it was built using increasingly popular construction methods. But as investigators sifted through the rubble for clues to the bridge’s collapse, the technology behind the bridge was being reviewed.
“Accelerating bridge construction” or ABC is a set of strategies designed to shorten the time needed to build Bridges. The idea is to measure the success of time savings in the name of security, reducing costs and reducing traffic impacts.

This is not the case: instead of building Bridges on the ground, it is better to build Bridges in other places, known as prefabricated Bridges. Then it was taken to the construction site and assembled quickly – sometimes for hours.
Mary Lou Ralls, a civil engineer and bridge expert, says ABC has been used in thousands of Bridges in the United States since the 1980s. Ralls FIU is speed up the construction of bridge traffic center at the university of technology transfer, director of a federal funding agencies, the irony is that, before the bridge collapse, the university has become a symbol of ABC. It was created by a group of bridge engineers eager to push and study ABC, reducing the so-called “social cost of bridge construction”.
These include the time to build Bridges and the safety hazards faced by bridge workers. Every five minutes in the United States, there is a workplace crash, which accounts for 73 percent of all workplace fatalities.
Traditionally, concrete Bridges have been cast on site, which is dangerous for workers and inconvenient for drivers. This is the equivalent of making your own lego bricks – a process that can take months or years.
Through the ABC bridge, concrete is poured and shed. Supporters say it allows for quality control and precision. The builders then put the pieces together, like the lego bricks that shops buy, near future Bridges and quickly installed.
After assembly, the FIU bridge wobbles in the street via a self-propelled modular transporter, a computer-controlled vehicle capable of carrying loads of loads. Then put it on the side of the street. According to financial intelligence, the structure is the largest pedestrian bridge ever to use the technology.
When it is finished, the FIU bridge should look like a cable-stayed bridge – a more modern cousin of the traditional suspension bridge, which distributes its load along a set of cables anchored to a tower. However, the cable (never attached) is only an auxiliary support element. The unfinished structure is actually a truss bridge. When you think of a bridge type, you might think of a metal structure – usually used on a railroad bridge – by a triangular truss that bears the load of the bridge.
In this case, however, the bridge has concrete trusses. Bridge expert John j. Myers, professor of structural engineering at the university of Missouri, is unusual. “Trusses are usually made of steel,” he said. But because the concrete is not corroded and requires less maintenance than steel, he adds, it has become more and more popular in all Bridges over the past few decades.


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