Demolishing structures in urban settings has a number of undesirable consequences as well as serious safety concerns. So, it is important that urban planners take the time to carefully consider best practices and additional considerations before taking demolition decisions.
As well as safety considerations, demolitions can also be environmental damage. Particularly, the debris from demolition can pollute local water supplies and decrease the capacity of sewers.
Challenges
Demolishing a structure may be an arduous procedure. The process is typically carried out by the removal of non-load bearing walls, weakening support structures and placing explosive charges. The entire process can take months to complete and needs careful planning for the security of the surrounding buildings. It is also difficult to take out large structural components like columns and beams without damaging nearby buildings.
The idea of imposing the demolition plan isn’t suitable when a large portion of the area is maintained and occupied, and when energy efficiency improvements are possible (Power, 2006a). Demolition can also lead to taking away existing structures instead of solving specific issues with houses, which is incompatible with the incremental renewal model which would be beneficial to these neighborhoods in the end. It is advisable to use a “scalpel” approach to demolition focused on only those who are most at risk and cannot be saved from house, is more feasible (Mumford and Power, 2002). This method of deconstruction also minimizes the amount of energy that is used to construct the replacement home.
Safety Concerns
People who work in demolition or excavation face a range of security concerns, including unstable structures that may collapse suddenly during the demolition process. The structures may also have concealed hazardous substances that include asbestos PCBs, asbestos, wood preservatives, lead paint, mould and dead animals, such as bats, pigeons or rats.
Apart from structural stability Other safety hazards include falls from height and the hazard of fumes and dust. This can lead to fatal injuries or even deaths when not dealt with properly.
Another reason to be concerned is that demolition methods may damage neighboring buildings and public areas. The good news is that experts have come up with methods like building implosion to reduce the risk. They use explosives to demolish the structure quickly, without damaging nearby structures. Also, they may install structures like debris nets as well as catch platforms, to keep the debris from crashing into individuals beneath.
Limited Space
Numerous cities are resorting to massive demolition as a means to improve neighborhoods and stimulate the growth of neighborhoods. But, some critics say this strategy is ineffective as it could result in racial segregation. Furthermore, it might cause a decrease in the value of neighboring property.
One of the most important aspects in the process of demolition involves salvaging or recycling building materials. This will help lower costs and help save money for the city. By using material handlers demolition contractor could load steel and other components in piles that are organized, and transfer them to a distinct destination to be processed.
This type of machine can also ensure that the job is done quickly and efficiently. It does this because it is able to change attachments to suit different requirements, for example, getting concrete or agglomerates. It can even sort and recycle steel, saving the most valuable resources.
Environmental Regulations
The removal of buildings that are no longer in use can result in serious environmental consequences, particularly if the demolition is not planned properly. In particular, vacant properties often produce significant amounts of stormwater runoff that can be absorbed into nearby streams or waters bodies, which collects pollutants in the process. It can affect local drainage and water quality, as well as decrease the capacity of the sewer.
Additionally, if asbestos-containing mua xac nha quan 11 gia cao substances occur in a demolition project it is required to remove them in accordance with federal and local regulations. This could significantly raise the cost of the project.
Additionally, the emerging theme of circular construction holds the potential of adding additional aspect to plans for demolition. This will require revaluing the reuse of demolition debris that could affect tendering procedures and plans for structural technology. This presents a fresh challenge for both demolition firms as well as urban planners.
Public Relations
Skyscrapers loom high over the global cities, glittering symbol of wealth and power. Yet, at times, these huge structures are not as effective or get damaged, causing them to be demolished.
Instead of exploding them and smashing them with a ball of wrecking, engineers are working on more sophisticated techniques to bring down these massive buildings. In Tokyo the city that has many cheek-by-jowl buildings, experts are perfecting what they call called the stealth demolition. Instead of exploding the entire structure in one go They are taking it apart by removing it from inside, and then taking the structure apart floor-by-floor. This technique can also be applied if a structure is not sufficiently damaged to blast in a safe manner. It’s quieter and less smudge-proof than the traditional wrecking ball. It is among the easiest methods of destroying tall buildings.