ÖZYURT, Meriç Can İstanbul Üniversitesi - Mühendislik Fakültesi - Maden Mühendisliği Bölümü, Turkey , ÖZER, Ümit Istanbul Üniversitesi - Mühendislik Fakültesi - Maden Mühendisligi Bölümü, Turkey , KARADOĞAN, Abdulkadir İstanbul Üniversitesi - Mühendislik Fakültesi - Maden Mühendisliği Bölümü, Turkey , KALAYCI, Ülkü Istanbul Üniversitesi - Mühendislik Fakültesi - Maden Mühendisligi Bölümü, Turkey

The Demolition of a Reinforced Concrete Building by Using Explosives and Examination of It’s Efficiency

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Abstract: Within the scope of urban transformation new demolition techniques are seeked due to the old and damaged buildings to be demolished. Considering the advantages, controlled structure destruction by explosives is a remarkable technique that is applied successfully in abroad countries for years. In this study, the controlled demolition of Edirne Kapıkule Customs Building by using explosives was done. For this purpose, the building plan is determined by using tape measure and modelled in PC. Building’s material properties are found as a result of laboratory studies and information about building’s static balance is obtained. To determine charge, trials blasting on columns are done. From these results appropriate firing sequence is determined. The determined firing sequence is performed on the model, generated by using a finite element analyzing software. The behavior of the building, loads on columns during the demolition, are determined. The loads on columns are compared with the column’s carrying capacity. As a result of this, the deformation of the building after demolition is over is foreseen. After the operation, it could be said that demolition achieved its goal. But the predicted deformation didn’t occur on the structure elements, explosives weren’t placed in. The reasons for this were examined. When the comparison of demolition by using machine cost and demolition by using explosives cost, the demolition by using machine is more advantageous because of less number of floors. It ıs observed that, measured vibration values are not adequate to cause damage on reinforced concrete buildings.

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Blasting , Demolition , Structure , Explosive , Static , Reinforced Concrete

Uludağ University Journal of The Faculty of Engineering

63