• Title/Summary/Keyword: demolition method

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A Prospect of Explosives Demolition Based on Comparative Analysis of Demolition Cost. (해체공사비 비교분석을 통한 발파해체 공법의 전망)

  • Cho Tae-Wan
    • Korean Journal of Construction Engineering and Management
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    • v.5 no.4 s.20
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    • pp.130-138
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    • 2004
  • The demolition works of high building in korea are expecting to increase rapidly in the near future, and its general demolition methods can be divided into mechanical demolition method and explosive demolition method. The selection of the right demolition method relies on many variable elements according to environmental and geographical elements. But, generally, the most important element of those is a economical profit. Accordingly, This study estimates each demolition cost dividing into mechanical demolition method and explosive demolition method of high building in city. And the estimating of the demolition cost makes it possible to do comparative analysis for the economical efficiency of each method more objectively than any other selective elements. Also, the analysis for the economical efficiency helps to forecast the activated time of the explosive demolition method in domestic.

Reasonable Demolition Method Combination of RC Structures (RC구조물의 해체공법 조합방안)

  • Kim, Se-Bum;Yang, Jin-Kook;Lee, Sang-Beom
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2016.05a
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    • pp.177-178
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    • 2016
  • The main structure of the building has been used reinforced concrete construction method in Korea. In recent years, it is necessary to demolition of buildings into urban redevelopment. But yet the demolition method is not being developed perfect. It is necessary to develop future deconstruction for safety and environment method. In this study, we surveyed the demolition method has been used in domestic construction. How the combination of these demolition method should be needed. Demolition method combinations were classified as low-rise, high-rise, middle. It suggested method to combine the demolition process of reinforced concrete structure with seven.

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TOPSIS-Based Decision-Making Model for Demolition Method Selection

  • Lee, Hyung Yong;Cho, Jae Ho;Son, Bo Sik;Chae, Myung Jin;Lim, Nam Gi;Chun, Jae Youl
    • Architectural research
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    • v.23 no.4
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    • pp.67-73
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    • 2021
  • An efficient demolition process requires the optimum method selection considering stability, economic feasibility, environment, and workability. In reality the construction cost and period are priority concerns, and safe construction methods are neglected. In addition, the choosing demolition method is often determined subjectively by experienced field engineers. This research paper presents a multi-criteria decision-making method using Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) to select the optimum demolition method. Three experienced demolition engineers' opinions were used to develop the TOPSIS model. The case study showed that the preferences of ten attribute measurements for demolition method selection. Authors suggested the most preferable demolition method for the case study project.

A Study on the Method of Blasting Demolition of Reinforced Concrete Structures (RC구조물 발파해체공법 연구)

  • 최영천
    • Explosives and Blasting
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    • v.20 no.3
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    • pp.83-96
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    • 2002
  • Reconstruction and redevelopment of old and dilapidated apartment and housing have been increasing to provide more housing accommodation and to secure the safety of building structures since the middle of 1990's. Since, however, little researches on the demolition technique have been made, conventional mechanical demolition method were applied to the most of works that resulted in flooding in small demolition companies. Problems associated with mechanical demolition method are increase not only in working days and costs, but also in public claims, particularly for high-rise building structures. This is to contribute the demolition industries bt providing the concept, standards, and technique of demolition engineering while maximizing working efficiency and minimizing public claims.

The Actual State of Demolition and Pilot Dismantling in Apartment Building (해체공사의 수행실태 및 공동주택 분별해체 시험시공)

  • Kim, Hyo-Jin;Sohn, Jeong-Rak;Park, Seong-Sik;Yoon, Yung-Sang
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.04a
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    • pp.113-118
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    • 2007
  • Now a performance process of Demolition works is 'Before-Removal & After-Classification' method in Korea. This method is short of demolition time, but construction wastes contained substances lower recycling rate of construction, raise expenses of reclamation & treatment. Then the government has decided upon a positive 'Before-Classification & After-Removal' method, and substantially raise a recycling rate of construction wastes. Therefore, this study makes an investigation into state of internal and external demolition field through evaluating technological level, we make a proposal of dismantling method from there. Also, we put dismantling to the test in an apartment by proposed work process. As the result, it made a term of works increased for removing interior material. To solve this problem, we need to develop tools and methods of construction that can remove efficiently. From now on, we continuously need to study a breakdown system of dismantling, analysis of dismantling process and general system by inspecting entire demolition process. And we have to study details for making a specific thesis of method of removing interior material which was based on developing a suitable partial demolition machine and dismantling works.

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A Case Study on Blasting Demolition Method of Structure (구조물 발파해체 공법 시공사례 연구)

  • 한동훈;안명석;공병승;이윤재;류창하
    • Explosives and Blasting
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    • v.21 no.3
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    • pp.49-60
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    • 2003
  • Nowadays it is tendency to make a remodelling or demolition of old structures with the rapid development of blasting technique. In this treatise it is arranged of improvement procedure of blasting demolition method in korea which was begun since August 1991. Recently, the blasting demolition method has much merits with 60-70% reduction effect of construction period than mechanical demolition method. and so that it has much economical points specially over than 5 storied high buildings. In order to maximalize economical effects of the blasting demolition method, environment safety and recycling, it must be needed. at first to develop the estimating programs against vibration, noise, flying stones, and dust. Also it is required to take a responsibility for using recycling materials after blasting demolition of old structures, and to be invested to advance the blasting demolition techniques.

A Case Study on Explosive Demolition of the Industrial Steel Shell Structure (산업용 스틸 셸 구조물의 발파해체 시공사례)

  • Park, Hoon;Noh, You-Song;Nam, Sung-Woo;Jang, Seong-Ok;Suk, Chul-Gi
    • Tunnel and Underground Space
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    • v.31 no.3
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    • pp.198-209
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    • 2021
  • Recently, the demand for demolition of unnecessary steel shell structure is increasing due to deterioration and unsatisfactory functional conditions and the issue of demolition is becoming a major highlight. This execution case was intended to describe an application of the felling method, a explosive demolition method to demolish steel shell structures, for the demolition of a steel stack and steel head tank. As a result of the explosive demolition, the steel stack and steel head tank had collapsed precisely according to the estimated direction. And the explosive demolition was completed without causing any damage to surrounding facilities.

A Case Study on Explosive Demolition of a the Industrial Stack (산업용 연돌 발파해체 시공사례)

  • Park, Hoon;Nam, Sung-Woo;Noh, You-Song;Kim, Suk-Weon;Suk, Chul-Gi
    • Explosives and Blasting
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    • v.40 no.2
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    • pp.15-24
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    • 2022
  • Recently, the demand of demolition for the unnecessary industrial structure is increasing due to deterioration tendency and the issue of demolition is becoming a major highlight. The restoration of the dismantled industrial site to its original natural state was currently underway. This execution case was intented to describe an application of the felling method one of the explosive demolition method to the demolition of the industrial stack. This stack was 150m high, a composite structure in which the outer wall of the stack was a reinforced concrete shell structure and internal stovepipe was a steel shell structure. As as result of the explosive demolition, the stack had collapsed precisely according to estimated direction. And the explosive demolition was completed without causing any damage to surrounding facilities.

A Case Study on Explosives Demolition of Central Library (중앙 도서관 발파해체 시공사례)

  • Park, Keun-Soon;Kim, Sang-Hoon
    • Explosives and Blasting
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    • v.26 no.2
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    • pp.77-91
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    • 2008
  • According as demand for superannuated building increases recently, much researches about demolition method of construction are going on. This case study executed to center library building located in Dankook University. Explosives demolition method applied Progressive Collapse. Explosives demolition main blasting floors are 2, 4floor, assistance blasting floor is 1 floor. In the nearest distance (150 m), Vibration measurement result were 0.0302 cm/sec (PPV). Change was not in measurement value is crack gauge which install beforehand.

A Case Study on Explosive Demolition of a Steel-Frame Structure (철골구조물 발파해체 시공사례)

  • Park, Hoon;Noh, You-Song;Nam, Sung-Woo;Jang, Seong-Ok;Kim, Nae-Hoi;Suk, Chul-Gi
    • Explosives and Blasting
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    • v.39 no.2
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    • pp.27-36
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    • 2021
  • Recently, the demand for demolition for the unnecessary steel frame structure is increasing due to deterioration and unsatisfactory functional conditions and the major highlights of demolition issues. This execution case was intended to describe an application of the felling method as one about the suggested method for explosive demolition method of ore bin and coke bin facilities, which were steel frame structures. And we used the charging container for blast cutting of the steel frame structure. As a result of the explosive demolition, the ore bin and coke bin had collapsed precisely according to the estimated direction. And the explosive demolition was completed without causing any damage to surrounding facilities.