What is it about?
This paper describes a computer tool for calculating and validating loads on floor slabs and shores in the construction of multistorey buildings with in situ casting. Its chief novelty lies in its optimization unit, designed to produce appropriate and optimum construction processes, which was created by applying exact and heuristic methods: Random Walk (RW), Descent Local Search (DLS) and Simulated Annealing (SA). The system has shown that it can improve three of the most important aspects involved in construction: time, cost and safety. In some cases the optimal solutions were achieved while reducing up to 53% of the cost of the shoring system, in shorter construction time, and meeting all the usual requirements for the construction of this type of building.
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Why is it important?
The study applies three optimization strategies (RW, DLS and SA) by means of a specially developed computer tool programmed in FORTRAN language to obtain, for the first time, optimal construction processes in multistorey buildings.
Perspectives
Optimal solutions were obtained for the two buildings studied that involved savings of up to 53% of the cost of the shoring system and reduced construction time while fulfilling the constraints considered. The authors recommend that future lines of research conduct detailed analyses of maximum loads on shores and their local effects on slabs, two aspects that in certain cases could have a strong influence on optimal construction processes. It would be also interesting to use different techniques such as multiobjective analysis, population methods and hybrid optimization.
Isabel Gasch
Universitat Politecnica de Valencia
Read the Original
This page is a summary of: Designing construction processes in buildings by heuristic optimization, Engineering Structures, March 2016, Elsevier,
DOI: 10.1016/j.engstruct.2015.12.009.
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