A Study on Guidelines of Evacuation Planning for High-rise Buildings Through Simulation and Survey Analysis

Ko, Soo-chan; Yi, Waon-ho

doi:10.9798/kosham.2018.18.1.35

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…Thus, evaluating the safety of such degraded concrete is critical because strength degradation may result in the collapse of large buildings with relatively large members. In addition, decisions based on accurate safety evaluation, such as proper repair and demolition, have positive economic effects [ 1 , 2 , 3 , 4 , 5 ]. In particular, high-rise buildings may have problems owing to long-term and continuous loads [ 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Residual Compressive Strength Prediction Model for Concrete Subject to High Temperatures Using Ultrasonic Pulse Velocity

2023

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This study measured and analyzed the mechanical properties of normal aggregate concrete (NC) and lightweight aggregate concrete (LC) subjected to high temperatures. The target temperature was set to 100, 200, 300, 500, and 700 °C, and W/C was set to 0.41, 0.33 and 0.28 to evaluate high temperature properties at various intensities. Measurement parameters included mass loss, compressive strength, ultrasonic pulse velocity (UPV), and elastic modulus. We compared the residual mechanical properties between the target and preheating temperatures (20 °C) and then analyzed the correlation between UPV and compressive strength. According to the research findings, after exposure to high temperatures, LC demonstrated a higher mass reduction rate than NC at all levels and exhibited higher residual mechanical properties. The results of analyzing the correlation between compressive strength and UPV for concrete subjected high temperatures were very different from the compressive strength prediction equation previous proposed at room temperature, and the error range of the residual strength prediction equation considering W/C was reduced.

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Section: Introductionmentioning

confidence: 99%

Residual Compressive Strength Prediction Model for Concrete Subject to High Temperatures Using Ultrasonic Pulse Velocity

2023

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“…또한, 피난자의 흐름을 저해하는 병목의 위치 및 원인을 찾는 것도 중요하다. 롯데월드타워의 경우 각 재실층에서 피난안전구역까지 23개 층을 7~8분 시간 내 대피 가 가능하도록 설치 간격이 고려되었는데 (Ko and Yi, 2018), 이 또한 인간의 보행속도가 일정하다고 가정하여 산출된 것이므로 현실적이지 않다.…”

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High-Rise Building Evacuation Simulation Based on Physical Stamina of Evacuees

Kwon¹,

Kim²,

Hwang³

et al. 2021

J. Korean Soc. Hazard Mitig

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Currently, high-rise buildings are being continuously constructed, and thus, it is necessary to predict evacuation safety in advance in case of emergency situations in high-rise buildings. However, current studies focus only on the movement of individuals in evacuation situations for predicting the final evacuation time. Therefore, in this study, a simulation of realistic evacuation in high-rise buildings was performed based on characteristics such as the physical stamina of evacuees. The evacuation simulation was performed on the world's tallest high-rise building, Burj Khalifa, and comparative verification was performed with and without consideration of the physical stamina of evacuees. The results of the simulation indicated that the total evacuation time significantly increases when physical stamina is considered. Hence, realistic evacuation in high-rise buildings is possible when the stamina of evacuees is considered.

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A Study on the Recognition of the Use of Evacuation Equipment and Safety Experience Education

Lee¹,

Eun²

2020

J. Korean Soc. Hazard Mitig

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This study aims to investigate the degree of recognition of evacuation equipment as well as facilitate the improvement of education. Over 300 specialist groups related to work and education nationwide were selected, without selecting the scope of the region; a questionnaire survey on evacuation equipmentwas conducted. The collected data were analyzed statisticallyusing the SPSS 20.0 program. The questionnaire consisted of general characteristics, knowledge level of evacuation equipment, degree of experience, safety education, educational methods, importance of evacuation equipment, and so on. The results of the questionnaire analysis indicated that, “I very much think so” was most commonly selected for the question “Various types of education in which experiential and theoretical education coexist are necessary.” The analysis showed that evacuation device education obtained through experiential education is suitable once or twice a year or two to three times in three years. It is necessary to make efforts to improve the safety education method for evacuation equipment and the direction of education according to the importance of safety experience education.

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A Study on Guidelines of Evacuation Planning for High-rise Buildings Through Simulation and Survey Analysis

Cited by 3 publications

References 1 publication

Residual Compressive Strength Prediction Model for Concrete Subject to High Temperatures Using Ultrasonic Pulse Velocity

Residual Compressive Strength Prediction Model for Concrete Subject to High Temperatures Using Ultrasonic Pulse Velocity

High-Rise Building Evacuation Simulation Based on Physical Stamina of Evacuees

A Study on the Recognition of the Use of Evacuation Equipment and Safety Experience Education

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