Last year, we shared a video of 6 Scottish high rise buildings that were imploded simultaneously, which was one of our favorite demolition videos of 2015. The problem, however, was that only 4 of them actually fell completely, causing delays as crews had to use high reach machinery to complete the job.
When the Red Roads high rise residential flats were built in the 1960s, they were actually the tallest of their kind in Europe. After a few decades of deterioration, the buildings had to be removed and they put on quite the show doing so. If you haven’t seen it before, you can check out the video, uploaded to Youtube by Green hand gang, below (NSFW language at 9 second mark):
As you can see, two of the buildings failed to fall, one still standing 11 stories high and the other standing 13 stories high. After months of investigation into the failure, the cause has finally been determined. According to BBC News, the main issue was the inconsistencies in construction records. Safedem, the demolition contractor, noted in the report that the 50 year old drawings stated the steel inside the buildings was considerably smaller than what had actually been installed, causing them to underestimate the “robustness” of the building. The report also states that “Safedem had carried out detailed surveys and noted a number of discrepancies between the surveyed buildings and the design drawings and therefore appear to have followed good practice.” Because of the discovery of discrepancies, the agency that completed the report also explained that the company could have done more to err on the side of caution, especially with regards to pre-weakening the structures.
The clearing of the site is still set to be complete on schedule in 2017.
Full story: Glasgow's Red Road tower blocks 'too tough' for blast demolition | BBC
Multiple buildings imploded at the same time with multiple different camera views? Sounds like the making of a great demolition video.
Demolition by implosion videos are always fun to watch. Adding an element of water makes them even more dramatic, though it’s probably not great for the ecosystem. Late last week, a one mile long, 23 year-old bridge in China was imploded in front of a crowd of spectators and caught on camera.
On Monday morning, a 13 story building in Miami Beach that was being prepped for demolition suddenly collapsed, injuring one Project Manager that was struck by debris.
In January of 2018, ten construction workers were killed and another eight were injured when a bridge spanning the Chirajara canyon in Columbia partially collapsed. That collapse has since been blamed on a poor design, reports have stated. Last week, the remaining sections of the bridge were demolished in dramatic fashion.
A couple weeks ago, we shared a list of the 100 tallest buildings to ever be demolished. One of the most interesting things that I learned while researching for that article was that although Detroit’s Greater Department Hudson Store was not the tallest building on the list (it was #21), it was the tallest on the list to actually be imploded.
In February, JP Morgan Chased announced their plans to demolish their current 52-story headquarters located in Manhattan. Turns out, when that demolition is complete, it will also break the record for the tallest building ever voluntarily demolished.
One thing’s for sure, the only thing better than one structure being demolished is two structures being demolished at the same time. Late last week, a decommissioned Florida Power Plant saw to the implosion of two 462 feet tall cooling towers in spectacular fashion.
Demolitions by implosion seems like the easiest way to knock down a structure, but there is so much preparation that goes into it that even the slightest mistake can have a huge impact. When smokestacks are demolished correctly, it can be a thing of beauty, like when these two silos in Scotland hit each other midair or when this asbestos filled stack was precisely demolished to fall into a pool of water. Things didn’t go so smoothly for demolition crews in Denmark last week, however.
As we’ve seen in the past, demolitions aren’t all about implosions. There are still many manual demolitions that are carried out by skilled excavator operators. The Victoria Street Bridge in Ontario, Canada is a recent example of that.