Amirkabir University of Technology Amirkabir Journal of Civil Engineering 2588-297X 52 2 2020 04 20 Optimizing the lift process in high-rise construction projects Optimizing the lift process in high-rise construction projects 383 396 3182 10.22060/ceej.2018.13868.5496 FA Alireza Jalali Yazdi Department of Civil Engineering, Ferdowsi University of Mashhad Mojtaba Maghrebi Department of Civil Engineering, Ferdowsi University of Mashhad 0000-0001-7284-9095 Jafar Bolouri Bazaz Civil Engineering Dept. Ferdowsi University of Mashhad Journal Article 2017 12 26 Availability of resources, especially labor and materials, is a critical factor that directly affects the project progress in high-rise construction projects. The project management team is continually seeking to facilitate the supply-chain process to avoid delays caused by labor and construction materials unavailability. This matter is especially of vital significance in high-rise buildings that comprise numerous and repetitive activities. The challenge that arises in these projects is the optimal vertical transportation of resources, which is possible via special machinery, including tower cranes and lifts. It has been observed in the literature that the optimal planning of construction lifting equipment can lead to significant improvements in reducing The activity delays. This research develops a mathematical model that optimizes the lifts’ operational plan in high-rise buildings with multiple lift cars, using integer programming techniques.” Availability of resources, especially labor and materials, is a critical factor that directly affects the project progress in high-rise construction projects. The project management team is continually seeking to facilitate the supply-chain process to avoid delays caused by labor and construction materials unavailability. This matter is especially of vital significance in high-rise buildings that comprise numerous and repetitive activities. The challenge that arises in these projects is the optimal vertical transportation of resources, which is possible via special machinery, including tower cranes and lifts. It has been observed in the literature that the optimal planning of construction lifting equipment can lead to significant improvements in reducing The activity delays. This research develops a mathematical model that optimizes the lifts’ operational plan in high-rise buildings with multiple lift cars, using integer programming techniques.” https://ceej.aut.ac.ir/article_3182_8051a3c40561002834e59d566b7430cf.pdf