this post was submitted on 11 Sep 2024
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chapotraphouse

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9/11 qin-shi-huangdi-fireball

Building implosion

In the controlled demolition industry, building implosion is the strategic placing of explosive material and timing of its detonation so that a structure collapses on itself in a matter of seconds, minimizing the physical damage to its immediate surroundings. Despite its terminology, building implosion also includes the controlled demolition of other structures, like bridges, smokestacks, towers, and tunnels. This is typically done to save time and money of what would otherwise be an extensive demolition process with construction equipment, as well as to reduce construction workers exposure to infrastructure that is in severe disrepair.

Building implosion, which reduces to seconds a process which could take months or years to achieve by other methods, typically occurs in urban areas[citation needed] and often involves large landmark structures.

The actual use of the term "implosion" to refer to the destruction of a building is a misnomer. This had been stated of the destruction of 1515 Tower in West Palm Beach, Florida. "What happens is, you use explosive materials in critical structural connections to allow gravity to bring it down.

The term "implosion" was coined by my grandmother back in, I guess, the '60s. It's a more descriptive way to explain what we do than "explosion". There are a series of small explosions, but the building itself isn't erupting outward. It's actually being pulled in on top of itself. What we're really doing is removing specific support columns within the structure and then cajoling the building in one direction or another, or straight down.

  • β€ŠStacy Loizeaux, NOVA, December 1996

Building implosion techniques do not rely on the difference between internal and external pressure to collapse a structure. Instead, the goal is to induce a progressive collapse by weakening or removing critical supports; therefore, the building can no longer withstand gravity loads and will fail under its own weight

Numerous small explosives, strategically placed within the structure, are used to catalyze the collapse. Nitroglycerin, dynamite, or other explosives are used to shatter reinforced concrete supports. Linear shaped charges are used to sever steel supports. These explosives are progressively detonated on supports throughout the structure. Then, explosives on the lower floors initiate the controlled collapse.

A simple structure like a chimney can be prepared for demolition in less than a day. Larger or more complex structures can take up to six months of preparation to remove internal walls and wrap columns with fabric and fencing before firing the explosives.

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[–] hexaflexagonbear@hexbear.net 17 points 2 months ago

Lol ofc Marianne Williamson has a new age woo-ey way of being racist.

[–] Poogona@hexbear.net 16 points 2 months ago (6 children)

Man I lost like 3 pets this year and I'm feeling lonely as fuck and I can't really complain to my friends about it because they are dealing with much bigger problems right now, this sucks

Yeah yeah, your marriage is struggling, okay yeah you are making a lot of extra suicide jokes lately, yes yes I am happy you're recovering from your gender reassignment surgery

I happen to miss my dog and I reserve the right to be sad today

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[–] blight@hexbear.net 16 points 2 months ago (1 children)
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[–] WhyEssEff@hexbear.net 16 points 2 months ago

wearing my final-fantasy-ix-xi sweatshirt today even though it's 70f. it's too important

[–] Sickos@hexbear.net 16 points 2 months ago (2 children)
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[–] Grownbravy@hexbear.net 16 points 2 months ago (3 children)

this current political atmosphere really kills my desire to engage with it at all. i just wanna hang and chill for a while.

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[–] UmbraVivi@hexbear.net 16 points 2 months ago (4 children)

Wish not getting laid and/or being in a relationship didn't hurt my ego so much.

I just don't feel like I'm capable of being in a relationship at this point and I can't imagine hooking up with a person I don't care about just for sex. I need a lot of mental stimulation and if I can't get that from people, I lose interest in them. In that regard, I can't imagine being with someone who's not like me. I don't wanna do activities, I don't need to travel, I just wanna sit and talk, discuss, question, analyze, argue ad infinitum about anything and everything.

There's definitely others like me out there. The problem is that we won't find each other because neither of us goes outside.

[–] UmbraVivi@hexbear.net 15 points 2 months ago (1 children)

When I'm at parties, I'm always wherever it's most quiet. Partially because my autism makes me very noise-sensitive but also because talking to people is the only thing I find interesting. Dancing to music does literally nothing for me.

is there a dating app specifically for pretentious introverts

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[–] HarryLime@hexbear.net 16 points 2 months ago (2 children)
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[–] keepcarrot@hexbear.net 16 points 2 months ago (3 children)

Waiting in the ER, looking at a long wait given the low urgency, but I've had a miserable time shopping for a GP that is open during non work hours

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[–] QuillcrestFalconer@hexbear.net 16 points 2 months ago (3 children)

If 9/11 was so good, why isn't there a 9/11 2?

[–] Frank@hexbear.net 14 points 2 months ago

I hate to tell you this but there have been several 9/11s

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[–] usa_suxxx@hexbear.net 16 points 2 months ago

The idea that you can test an LLM's output by feeding it into another LLM is the dumbest thing I have heard.

[–] wombat@hexbear.net 16 points 2 months ago

it is september 11 and stalin saved the world from fascism

[–] thelastaxolotl@hexbear.net 16 points 2 months ago (1 children)

Good morning nerds meow-coffee

Im glad you nerds liked my 10 minutes of labor in paint for the mega image they-hit-the-pentagon

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[–] BelieveRevolt@hexbear.net 16 points 2 months ago (1 children)

I saw someone wearing a NAFO shirt today cringe

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[–] hexaflexagonbear@hexbear.net 16 points 2 months ago (1 children)
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[–] Frank@hexbear.net 16 points 2 months ago (4 children)

Y'all every get a full bore anxiety attack but without the fear? Idk what to call this. The last two days my body has been in full fight or flight mode but I don't feel the need to either flee or fight, the engine is just racing.

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[–] AmericaDelendaEst@hexbear.net 15 points 2 months ago (2 children)

I didn't watch the debate but if you go by reddit Harris YassKween'd so hard she's now mr ms the president

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[–] AndJusticeForAll@hexbear.net 15 points 2 months ago (8 children)

Canadian father is trying to spread AmeriKKKa nazi shit about haitian immigrants to me and then when I say it's fucking stupid and evil to believe that he bitches out and goes "I was just trying to have a discussion" when a discussion to him and his ilk is them ranting at you and you having literally zero influence or input on them, they just want you to either agree or be silent or if you disagree they just pretend you didn't.

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[–] HarryLime@hexbear.net 15 points 2 months ago (1 children)
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[–] SoylentSnake@hexbear.net 15 points 2 months ago (2 children)

if u find dating fun as a thing in itself vs a grinding means to an end chore i deeply envy you this shit is wack

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[–] stigsbandit34z@hexbear.net 15 points 2 months ago* (last edited 2 months ago) (4 children)

Open ai is seriously hardcoding shit to make it look like their little toy is thinking for itself

God they’re so fucking evil, so much power and ability to shape reality

People asked it how many Rs are in strawberry. It said two

Now when people ask the same question but with β€˜strowberry’, it says β€œThere are three Rs in the word strowberry. If you meant strawberry, it contains two Rs.”

Why must I live in this era

doomer

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[–] WhatDoYouMeanPodcast@hexbear.net 15 points 2 months ago (1 children)

Merry 9/11 to those who celebrate

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happy holidays to all of this very special day. Especially the haters and losers

[–] 2Password2Remember@hexbear.net 15 points 2 months ago (4 children)

i swear to god i hate nerds so fucking much. im trying to learn python and these motherfuckers have made it so fucking difficult to even install anaconda that im ready to fly a plane into a building. why would a program not install its own navigator? beyond useless. i cannot reiterate this enough: the more somebody knows about computers, the more i hate them

Death to America

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[–] Dolores@hexbear.net 15 points 2 months ago (2 children)

lmao the train is announcing where we are 3 stations off somebody is going to get very confused

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[–] hexaflexagonbear@hexbear.net 15 points 2 months ago (2 children)

I don't think anyone is happy with the skinny pikachu redesign.

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[–] EllenKelly@hexbear.net 15 points 2 months ago

Lots of meta drama with people upset over mods recently, so I want to say: thank you mods. You do tedious, thankless amd largely unseen work. You keep this website safe. I appreciate you.

To everyone: please do something nice for yourself today, you need it, you deserve it.

[–] blight@hexbear.net 15 points 2 months ago

death to america amerikkka

[–] DengistDonnieDarko@hexbear.net 14 points 2 months ago
[–] Redcuban1959@hexbear.net 14 points 2 months ago (2 children)

I've just learned that there's an urban legend in Brazil that 9/11 interrupted the airing of an episode of DBZ on some TV channel. And, at the same time, they also interrupted an episode of Sailor Moon R on another TV channel. lol

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[–] WhyEssEff@hexbear.net 14 points 2 months ago* (last edited 2 months ago) (2 children)
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