Fri. Jul 12th, 2024

Baltimore bridge collapsed: “There is no chance that a bridge pier could withstand such a shock”, Normandy bridge designer said.

By nr39r Mar27,2024
News

The boat was not only overly large, but it also deviated from the waterway that it was supposed to be following.

Michel Virlogeux, an engineer involved in the construction of bridges and roads, described the tragedy as “a relatively classic type of accident” notwithstanding everything.

According to a comment made on FranceInfo on the 26th of March, “There is absolutely no chance that a bridge pier could withstand such a shock.” Engineer Michel Virlogeux, who was responsible for designing the Normandy bridge and the Millau viaduct, was also a bridge and road engineer.

After being struck by a ship that was carrying automobiles, a bridge in Baltimore, Maryland, United States of America, collapsed.

At least seven individuals have not been found. It is not a concern of the bridge’s fragility, he stated; rather, the issue is the size of the container ship with which it is being transported. The boat, which is 300 meters in length and looks to have “moved away from the navigation channel,” possesses “considerable kinetic energy.”

The issue at hand is not one of fragility, according to Michel Virlogeux. It is the size of the container ship that provides the challenge. Given that it is a container ship of 300 meters in length, it must have weighed at least likely 100,000 tons. I am referring to a huge mass here. Additionally, a boat like that, which is sailing, is capable of carrying a significant amount of water.

This boat, which houses a significant amount of water, moves at a particular pace. As a result, it possesses a significant amount of kinetic energy. It is completely incapable of putting up any kind of resistance when it collides with a bridge pier.

Quite a large amount. Given the magnitude of the shock, there is not the slightest possibility that a bridge pier could resist it. It is possible for it to work for smaller boats, but not for this. Something that is of utmost significance is the so-called range, which refers to the distance between the two piers and is responsible for clearing the navigation channel. It should come as no surprise that the boat has strayed from the navigation channel.

Although it is not something that happens on a daily basis, it is a form of mishap that is considered to be rather typical. By positioning the piers on the other side of the river from the river itself, the Normandy bridge that I constructed was intended to be protected from incidents of this nature. Additionally, there is a pylon that is located on the left bank, on land, and another pylon that is located on the right bank, along the dike, and it is protected by a protective enclosure in the case that boats stray from the navigation channel in a significant manner.

Without a doubt. In the process of constructing the Great Belt Bridge, the Danes conducted a great deal of study. Last but not least, in order to lessen the likelihood of accidents, the Great Belt Bridge has a span of 1,624 meters between its two pylons. These kinds of really huge boats are quite challenging to maneuver. In the nick of time, we are unable to make a course correction.

After being struck by a container ship that was carrying a significant amount of cargo, a major bridge in the city of Baltimore, located in the United States, collapsed.
There are still a lot of lingering issues, one of which is how the ship might have lost control. So far, this is what we have learned:

A concrete pier that was supporting the Francis Scott Key Bridge in Baltimore was struck by the container ship Dali, which was flying the flag of Singapore and was sailing from Baltimore with a full load on its way to Sri Lanka. The collision occurred at roughly 1:30 am (0530 GMT).

In a matter of seconds, nearly the entire bridge collapsed, and it fell into water that was approximately fifty feet (15 meters) below. According to the authorities, the water was quite cold.

A Mayday call was sent out by the ship a few moments earlier, informing the authorities that it had lost power. This prompted the authorities to rapidly cut down traffic to the bridge, which could have prevented the loss of lives.

An mission to search for and rescue people is currently underway. This operation will use divers, boats, aircraft, and advanced sonar and infrared technology.

Officials have stated that they are looking for at least six members of a construction crew that consisted of eight people and was working on mending potholes on the bridge.

A total of two further individuals have already been rescued from the water. One of them was unharmed, but the other was severely hurt and had to be taken to the hospital immediately.

There was considerable uncertainty regarding the possibility that there are still persons who are trapped inside of vehicles that may have been on the bridge at the time of its collapse.

James Wallace, the chief of the Baltimore Fire Department, stated that sonar had located automobiles in the water, but he was unable to provide any other information.

The inquiry is still ongoing, according to the Governor of Maryland, Wes Moore, but the Secretary of Transportation for the state, Paul Wiedefeld, stated that investigators “do not believe” that any individuals were believed to be trapped in cars.

Synergy Marine Group, the company that manages the Dali, reported that none of the crew members were hurt in the incident.

In the seconds leading up to the collision, the Dali sent out a Mayday signal, indicating that it had lost both its power and its propulsion. The reason for the power outage is not yet completely understood.

It was unable to maintain the proper direction, and as a consequence, it collided with the Francis Scott Key bridge, according to a statement released by Singapore’s Maritime and Port Authority, which cited Synergy Marine Group as the source of the information.

During the minutes leading up to the collision, the ship is shown on the CCTV camera going dark twice. Just prior to the collision, there is also a cloud of smoke that can be seen.

“As part of its emergency procedures, the Dali had dropped its anchors prior to the crash,” the Singapore Maritime and Ports Authority (MPA) stated. When this is done, it can help slow down the voyage of a ship that is out of control.

The authorities have stated on multiple occasions that there is “no indication” of terrorist activity.

According to the opinions of a few specialists, the primary support structures of the bridge might not have been adequately shielded to withstand a collision with a vessel of such a massive size.

A professor of structural engineering at the University of Warwick named Toby Mottram stated that the high momentum of this enormous cargo vessel, particularly when it was loaded with cargo, would have been significant upon impact.

“It’s evident that the pier couldn’t withstand the impact energy…. The extent of the damage to the bridge superstructure appears disproportionate to the cause,” Mottram explained to reporters.

The port has been shut down “until further notice” by the authorities, and traffic is being rerouted away from the bridge as the rescue operation proceeds.

Officials have stated that currently, the main priority they have is to locate any survivors that may have survived. Moore issued a proclamation of a state on emergency.

In addition, they are keeping an eye out for any fuel spill that may have occurred from the damaged Dali, but none has been detected as of yet.

The only place to listen to the most recent music is on JioSaavn.com. There is a high probability that the collapse will have a significant effect on the region. As a result of the destruction of the bridge, traffic in the vicinity of Baltimore will be impacted, and the debris that is currently obstructing the canal may also cause shipping to experience significant delays.

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By nr39r

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