Análise de diferentes tempos de ciclo na formulação de planos de ataque de edifícios de múltiplos pavimentos

Abstract

This research work discusses tactical scenarios for high-rise construction site planning. It explores site scheduling connections to lean construction principles and also to strategic, tactical and operational approaches to building programming. Cycle time variation for major building groups of activities is the main variable behind different tactical options for work scheduling. The Line of Balance programming technique is employed both as an analytical tool and as graphical device to communicate and interact with site agents, as far as they act as sources of information and decision makers in order to select the most suitable schedule. Site experience was undertaken in a construction company in Fortaleza, Ceará. Research methodology is structured along three main lines. First cycle time variation is identified through literature review as the main lean construction principle to be dealt with in site planning. Second, a case study research was conducted in a 22 storey high residential building, in a programming process that abridged both preparing in advance different scenarios and collecting further information with site agents along the initial stages of actual construction. Third site agents and managers where brought to discuss, evaluate and finally select one most suitable scenario to be actually enforced on site. Conclusions are connected to the impact on site programming of variables like cycle time variation, lead time, number of group of workers associated with each set of operations, number of repetitions each gang is allowed to address and their sequence of work.