Gas characteristics and effectiveness of smoke control systems in elevator lobbies during elevator evacuation in a high-rise building fire

Chen, Yanqiu; Chen, Junmin; Fu, Zhijian; Jiang, Shanqun

doi:10.1080/00102202.2018.1445087

Cited by 11 publications

(3 citation statements)

References 27 publications

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“…e consolidation behavior of stairwells could reduce the speed of pedestrian flow. e stairs are the major exporters of high-rise buildings [51,52]. As the population grows, the impact of obstruction caused by people with disabilities on evacuation time becomes more apparent [53,54].…”

Section: Review Nursing Home Evacuationmentioning

confidence: 99%

Fire Evacuation Process Using Both Elevators and Staircases for Aging People: Simulation Case Study on Personnel Distribution in High-Rise Nursing Home

Chen

Yap

et al. 2020

Discrete Dynamics in Nature and Society

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There were increasing concerns on the possibility and suitability of using elevators for high-rise building evacuation because, through the improvement of the elevator system, the self-evacuation ability of age people is promoted as much as possible in the process of an emergency evacuation. The combined evacuation using both elevators and stairs was put into discussion. However, there was no empirical evidence and numerical simulation on emergency evacuation using both elevators and staircases for aging people in high-rise nursing homes. Therefore, using one case study, this paper simulated the emergency evacuation in a high-rise nursing home using variables such as the distribution of the elderly with different physical conditions, the proportion of the elderly in different physical conditions, the number of the elderly, the number of floors, the number of elevators used, and the priority of the elevator floor. By simulating the evacuation process in various scenarios, the general distribution strategy of high-rise nursing home and the optimal use of the elevator-stair combination during the emergency evacuation were developed. Results show that the elevator-stair combination of evacuation is more effective than using elevators or stairs alone. Increasing the number and speed of elevators can reduce evacuation time. Categorizing elderly people on each floor according to their physical conditions could reduce the evacuation time than randomly distributing them.

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Section: Review Nursing Home Evacuationmentioning

confidence: 99%

Fire Evacuation Process Using Both Elevators and Staircases for Aging People: Simulation Case Study on Personnel Distribution in High-Rise Nursing Home

Chen

Yap

et al. 2020

Discrete Dynamics in Nature and Society

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show abstract

“…Elevator is a very important vertical transportation in buildings [1]. As people use elevators more and more frequently in life, travel, entertainment, work and other fields, the attendant elevator safety issues are increasingly concerned by the public and the media [2][3][4][5]. There are more and more old elevators in our country.…”

Section: Introductionmentioning

confidence: 99%

Failure analysis of lifting wire rope fracture in elevator installation accident

Shi

2023

Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023)

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In this paper, the cause of the fracture failure of lifting wire rope in an elevator installation accident is analyzed. By analyzing the macro and micro morphology, metallography, tensile test, simulation calculation and chemical composition of the wire rope fracture, the fracture failure reason of the wire rope was determined. The results show that the reason for the fracture of the steel wire rope in this elevator installation accident is overload fracture failure, which is mainly related to the improper layout and use of the steel wire rope, resulting in the load borne by the steel wire rope exceeding its minimum breaking force.

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“…Zhang Xuezhi used FDS and STEPS software to simulate the safe evacuation of the theater part in a large commercial complex [3]. Lu Feng et alused Pathfinder software to explore the influence of safe exit on evacuation time [4]; xing Luning et alcompared and analyzed the correlation between different stair forms and the number of stair conversion platforms and evacuation efficiency [5]; Fan et alstudied the influence of the residence time of the refuge layer on the evacuation of high-rise buildings [6]. Zhang Huan et alused pathfinder software to conduct evacuation simulation research on an office commercial complex, and finally concluded the problems existing in the evacuation of the office commercial complex and gave corresponding solutions [7].…”

Section: Introductionmentioning

confidence: 99%

Study on the influence of fire alarm time on evacuation time in typical shopping malls based on pathfinder

Zhang¹,

Yang²,

Li³

et al. 2023

EHSS

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The fire floor personnel are affected by the evacuation of non-fire floor personnel during the evacuation process. Congestion in the evacuation stairwell leads to failure to evacuate in time, which affects the evacuation efficiency. In this paper, a typical shopping mall is taken as the research object, and the Pathfinder simulation software is used to simulate the safe evacuation of personnel. In the simulation, the influence of alarm time on evacuation time is studied by setting the fire layer and delaying the alarm time of non-fire layer, and finally the optimal evacuation scheme is obtained. It can be used as a reference for typical shopping malls to formulate safety evacuation plans or for the revision of relevant specifications.

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Gas characteristics and effectiveness of smoke control systems in elevator lobbies during elevator evacuation in a high-rise building fire

Cited by 11 publications

References 27 publications

Fire Evacuation Process Using Both Elevators and Staircases for Aging People: Simulation Case Study on Personnel Distribution in High-Rise Nursing Home

Fire Evacuation Process Using Both Elevators and Staircases for Aging People: Simulation Case Study on Personnel Distribution in High-Rise Nursing Home

Failure analysis of lifting wire rope fracture in elevator installation accident

Study on the influence of fire alarm time on evacuation time in typical shopping malls based on pathfinder

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