2018/09/27

Summary of "4 Ways to Demolish a Building" draft 3

In the article, “4 Ways to Demolish a Building,” Rodriguez (2018) has stated that ways to demolish a building depends on the area, material, purpose of demolition and dispose of debris. The author implies that the implosion method is suitable for large scale building, by destroying the main beams. The explosive placement and order of demolition are important. He further suggests detailed study of the structure drawings and timing of the detonation is required. The author stated that high reach arm method involved the removal of inter-connected beams. Suitable for the buildings above 20 meters and safer alternative compared to the wrecking ball demolition. Expert is required to operate the wrecking ball during demolition due to space constraint and equipment load. The author mention that this method emits dust, vibration and noise. The author stated that selective demolition is a cost saving method suitable for the reuse of materials for future construction. High labor and time are needed for selection of reuse materials.

Thesis statement: Based on the points elaborated, although the writer addressed the four ways to demolish a building, he could have mentioned other demolition methods which are commonly used in the industry.

First of all, the writer should have included the top-down demolition method. This method hoisted the concrete breakers and crushers machines to the rooftop and demolish the building from a top-down manner floor by floor. In the article No explosives or swinging balls: How high-rise demolitions go down in Singapore” (2017), wrecking balls and explosives demolition are not suitable for high and compact buildings. The top-down demolition began with floor slabs, followed by the beam, column and the foundation. Dust emission could be reduced by using a mist machine. Clean concrete from demolition debris are recycled to build footpaths and roadside drains. After demolition the ground must be filled with soil to ensure the grass grows. Based on the news report “Rochor centre to be torn down floor by floor.” (2018), a demolition specialist Mr Tay stated:” This is the conventional method of tearing down buildings,”

Reference

No explosives or swinging balls: How high-rise demolitions go down in 
        Singapore. (2017). Channel NewsAsia.
        Retrieved, December 31, 2017
from https://www.channelnewsasia.com/news/singapore/no-explosives-or-swinging-balls-how-high-rise-demolitions-go-9425362

Wong, D. (2018) Rochor Centre to be torn down floor by floor. The Straits Times. 
Retrieved, June 27, 2018
from https://www.straitstimes.com/singapore/housing/rochor-centre-to-be-torn-down-floor-by-floor

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Revised Summary of “4 Ways to Demolish a Building” and Reader Response draft 3

In the article   “4 Ways to Demolish a Building”, Rodriguez (2018) stated that ways of demolishing a building depend on the land area, bui...