Flexible double-cage hoist for high operational efficiency in tall building construction

Taehoon Kim, Ung Kyun Lee, Seung Woo Kim, Hyunsu Lim, Chang Won Kim, Hunhee Cho, Kyung In Kang

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


High operational efficiency in the use of hoists is crucial for the successful completion of high-rise building projects. Simply increasing the number of hoists may not be possible because of insufficient space or budget limits. However, adopting the “double-deck” concept can be an effective approach to improving the operational efficiency of hoists in projects with such constraints. This study proposes a flexible double-cage hoist for use in such projects. In a case study, we found that combining the proposed hoist with existing single-cage hoists enabled a smaller number of hoists to achieve significantly higher efficiency at lower cost than a group of single-cage hoists. The optimal combination showed a 16.6% decrease in total operational costs and a 7.9% increase in operational efficiency. Using the proposed hoist could therefore enable the successful completion of high-rise building projects at lower cost.

Original languageEnglish
Pages (from-to)280-291
Number of pages12
JournalAutomation in Construction
Publication statusPublished - 2018 Dec

Bibliographical note

Funding Information:
This research was supported by a grant ( 18AUDPB106327-04 ) from the Architecture & Urban Development Research Program funded by the Ministry of Land, Infrastructure and Transport of the Korean Government.

Publisher Copyright:
© 2018 Elsevier B.V.

Copyright 2018 Elsevier B.V., All rights reserved.


  • Flexible double-cage hoist
  • Hoist
  • Operational efficiency
  • Tall building

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Civil and Structural Engineering
  • Building and Construction


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