[논문]달비계용 PP섬유로프의 야외노출에 따른 인장강도 변화 분석

강성윤; 정기효

doi:10.12812/ksms.2023.25.3.031

[국내논문] 달비계용 PP섬유로프의 야외노출에 따른 인장강도 변화 분석
Analysis of Tensile Strength Changes by Outdoor Exposure of Scaffolding PP Fiber Rope 원문보기

대한안전경영과학회지 = Journal of the Korea safety management & science, v.25 no.3, 2023년, pp.31 - 36

강성윤 (울산대학교 산업경영공학과) , 정기효 (울산대학교 산업경영공학과)

Abstract ▼ AI-Helper

The use of hanging scaffolding for exterior wall painting and cleaning in building construction and maintenance carries the inherent risk of fall accidents. While periodic rope replacement is crucial for preventing accidents resulting from rope breakage, current regulations lack specificity in determining appropriate disposal period for fiber ropes. This study analyzed the tensile strength of the most commonly used PP fiber ropes with different diameters (16 mm, 20 mm) in the domestic construction industry. Additionally, the effect of outdoor exposure was examined by measuring the tensile strength of new ropes and ropes exposing to outdoor conditions for 30 days and 90 days. The results showed that the new ropes and those exposed to outdoor for 30 days met the KS (Korean Standards) criteria for tensile strength. However, a significant decrease in tensile strength was observed in ropes exposed to outdoor for 90 days compared to both the new ropes and those exposed for 30 days. Furthermore, the ropes exposed for 90 days did not meet the KS criteria. These findings indicate the degradation of PP fiber ropes due to UV (Ultra Violet) radiation, highlighting the importance of considering this factor when determining the replacement period for fiber ropes used in scaffolding work.

주제어

표/그림 (9)

그림 [Figure 1] Number of deaths from scaffolding accidents
그림 [Figure 2] Fiber rope outdoor exposure
표 Main causes of deaths by scaffolding accidents
표 Material and causes of rope breakage accidents
표 Tensile strength (kN) of new fiber ropes
그림 [Figure 3] Failure characteristics of fiber rope after tensile strength test
표 Comparison of tensile strength between new ropes and ropes exposed for 90 days to outdoor
그림 [Figure 4] Changes of fiber rope in surface uniformity after tensile strength test
그림 [Figure 5] Comparison of fiber filaments for new and rope exposed for 30 days to outdoor

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