Are you planning to reclaim your land? Is it occupied with an old and deteriorating building? You have to find a way to get rid of it. While it is very much possible to break the building bit by bit and spend manifolds of time and effort on it, building demolition is a far more practical solution.
For those who don’t know, it is the science of dismantling a building with controlled and preplanned methods.
As the building structures, the materials used in their construction and locations vary, so do the preferred demolition methods. A professional inspect the entire building and assess characteristics such as its usage, method of construction, drainage systems, traffic conditions, neighboring communities, and building codes to choose the perfect demolition method.
There are mainly four methods used by the building demolition services.
As the name suggests, this method is all about demolishing certain selected parts of a building. If age and local building codes permit, the main structure is retained while specific sections are carefully removed.
This method is gaining popularity in the modern eco-conscious world as you can choose to keep some parts and reuse them.
Recycling reduces the environmental impact of demolition in several ways. Other than the reuse of construction materials, selective demolition produces far less debris, air, and noise pollution.
It starts with a thorough survey of the building. Once the sections of the building are identified for selective demolition the site is prepared for further proceedings.
Electricians, plumbers, and mechanics cut off the power, seal the open piping and remove the additionally installed features from the area. A temporary lighting system and trash suite are installed, workers strip, dismantle, and strip off the structural elements.
The building shell is supported by temporary supports. The demolition team removes the external structures that need demolition and sorts out the trash to leave the site prepared for renovation or remodeling.
Excavator is specifically designed for controlled demolition. It is very suitable machinery to get rid of the smaller homes. Although there are heavy-duty excavators for buildings taller than 60 feet, excavations are generally used for smaller buildings.
This method of demolition is considered cleaner and safer because it causes less risk and noise for the operator as well as the surroundings.
Sheers, hydraulic hammers, and crushers are mainly used as affixed attachments are used to break down the building from top to bottom. The tool-equipped arms are operated by the excavators to break the hard-to-reach place and a specific crew on the ground breaks down the pieces to rubble.
Boom size or the ratio of height and weight of the excavator is the most important factor when it comes to demolishing taller buildings.
Wrecking ball demolition is an iconic method but rarely used in today’s construction sites. The key principle is to use a massive 12000 pounds steel ball to break down the building. The ball is suspended from a crane and swings on the target structure. Gravity, weight, and inertia all come into play for demolition.
The height of the crane and the weight of the ball are carefully assessed to build the momentum required for achieving the results. The release methods vary depending on the required swinging precision.
Once the ball starts to move, the gravitational potential energy stored in it is converted to kinetic energy. Operators release the ball from a height to create the right amount of force.
Although this demolition method is quick and cheap, it causes a lot of flying debris and safety hazards.
Implosion is the most impressive and effective method of building demolition used today. But it is seldom used because of its specialized nature. To be exact, implosion is used for less than 1% of the demolitions.
Implosion works by using explosives to knock out the main support of a building causing it to collapse from inside out. Demolition experts called blasters are required to assess the building, the space around it and choose suitable explosives for the building.
Typically dynamite and RDX are used to obliterate concrete and steel respectively. An electrical current is set off to start the implosion.
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