jismart2020055: Productivity Analysis of Robotic Timber Lamination Construction Method

Abstract

This is a study on the methodology of robotization of timber laminated construction method, which is a method of constructing self-built houses that can be built by builders who do not have professional construction skills. The timber laminated construction method uses more structural members than the conventional wood construction method in Japan and has the potential to build houses at a lower cost, and to promote the renewal of planted forests through housing. We develop a robotic timber laminated construction method that combines this construction method with construction automation that could trigger technological reforms to increase productivity and improve working conditions. The productivity of the robotisation method proposed in the related research was clarified by analysing the time required for each robotic task and the cost of equipment, labour and materials, calculated by an original index. Based on the results of the analysis, a proposal for improvement was discussed. The results of the time analysis show that the ratio of pick and place to glue and nail is well balanced at 63:37, and the cost analysis shows that material costs account for more than 90% of the total cost while equipment costs for 1%. The proportion of equipment cost is very small. This result suggests that increasing the number of robots to multitask in construction and further reducing the execution time may be effective in improving productivity.