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Title |
A Study on the Optimization of Field Sampling Number of the Durability Evaluation Method for the Extension Remodeling of the Apartment Housing
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Authors |
신희철(Shin, Heechul) ; 최기봉(Choi, Kibong) ; 윤상천(Yoon, Sangchun) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.3.060 |
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Keywords |
증축형 리모델링 ; 안전진단 ; 철근콘크리트 내구성 ; 콘크리트 탄산화 ; 염분 함유량 ; 철근 부식 Durability evaluation ; Standards for extension remodeling ; Concrete durability ; Carbonation ; Chloride content ; Steel corrosion |
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Abstract |
The Housing Act amended allows vertical extension up to three floors and increases the units of housing (or total floor area) to site up to 15%. Currently, the feasibility of performing vertical extension is evaluated based on safety diagnosis provisions and manuals with preliminary investigations on slope, uneven settlement, load-bearing capacity, and durability. However, a need for more reasonable evaluation methodology for the preliminary investigation is still required because the current procedures are borrowed from safety diagnosis provisions and manuals for reconstruction without detailed examinations on evaluation criteria and sampling methods. Accordingly, this study is intended to suggest a method to obtain feasible sampling size for durability assessment by statistically analyzing the safety evaluation data sets on concrete carbonation and steel corrosion obtained from apartment complexes. The results of this study are expected to be beneficial for establishing more reasonable field sampling size, and in turn, more reliable durability assessment protocol for vertical extension.
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