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송승호 ( Song Seung-ho ),권우빈 ( Kwon Woo-bin ),최진욱 ( Choi Jin-ouk ),조훈희 ( Cho Hun-hee ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.1
The construction industry’s lack of experience and expertise makes it difficult for projects to realize the full benefits of implementing modular construction. Such project performance-hindering elements are often labeled as modular challenges. The added requirement for the transportation of the finished volumetric module is one aspect of the ‘module transportation logistics,’ the under-researched modular challenge that can prevent projects from incurring maximum cost and productivity benefits. The typical module transportation phases include lifting, transporting, and offloading. From conducting a literature review, this paper aims to investigate the equipment commonly adopted to lift and offload the module and validate its economic efficiency by comparing it with the alternative lifting/offloading equipment used in the two case projects. The results showed that hydraulic jacks are an economic alternative to the crane for lifting/offloading the module. The increase in single-module projects with smaller budgets made crane usage economically undesirable, and this study suggested a viable option for a more economical alternative.
후판 Crown 제어를 위한 SmartCrown roll profile의 최적화
송승호(S. H. Song),권용덕(Y. D. Kwon),김상록(S. R. Kim) 한국소성가공학회 2013 한국소성가공학회 학술대회 논문집 Vol.2013 No.10
Plate crown control is important not only for plate quality but cost reduction in a plate mill. The plate crown can be effectively controlled with the work roll shifting system such as Continuous Variable Crown(CVC)+ and SmartCrown. In this work the characteristics and differences of SmartCrown and CVC+ were analyzed and through the analysis result SmartCrown roll profile was optimized to improve crown control range. From an operation result it is shown that the plate crown can be successfully controlled with the optimized SmartCrown roll profile.