Open AccessInitial Analysis, Planning and Calculation of Vertical Delivery in High-rise Building Construction
Author(s) -
Simo Suđić
Publication year - 2017
Publication title -
periodica polytechnica. architecture
Language(s) - English
Resource type - Journals
ISSN - 1789-3437
DOI - 10.3311/ppar.10833
Subject(s) - duration (music) , tower , productivity , tower crane , critical path method , production (economics) , high rise , integrated project delivery , operations research , software , engineering , space (punctuation) , risk analysis (engineering) , computer science , civil engineering , industrial engineering , transport engineering , construction engineering , construction management , systems engineering , business , structural engineering , art , literature , economics , macroeconomics , programming language , operating system
Tower crane plays a vital role in materials delivery in construction projects. General contractors often use technical and commercial quotes to calculate number of cranes and their engagement duration in project, and they often have to deal with commercial and time risks. The main reason for this approach is the lack of standardised methodologies for calculating tower cranes engagement. Identifying the optimal number of cranes, their location and duration of engagement at the building site are the major factors that can reduce the risks considering the time and cost by increasing productivity and thus decreasing the required time. Calculation will be based on different production parameters -space per worker, concrete production per crane or worker, lifting time. This paper presents a methodology for calculating the required number of cranes and their optimal positioning. Proposed model for crane engagement optimisation is developed using the Critical Path Method in Primavera P6 software.