Reciprocal Implications Between Design and Construction Process of Timber Gridshell

This contribution focuses on the latest acquisitions of the Gridshell.it research group on active-bent timber gridshells. In particular, the main topic is related to the development of a new information technology design tool (GFFT 2.0) developed by David

  • PDF / 1,432,859 Bytes
  • 14 Pages / 439.37 x 666.142 pts Page_size
  • 69 Downloads / 226 Views

DOWNLOAD

REPORT


Abstract This contribution focuses on the latest acquisitions of the Gridshell.it research group on active-bent timber gridshells. In particular, the main topic is related to the development of a new information technology design tool (GFFT 2.0) developed by Davide Rando for his Master’s thesis in Architecture in January 2018 under the supervision of Sergio Pone and Daniele Lancia; this design tool is a new version of the previous one developed in 2012 by Daniele Lancia and Andrea Fiore for their Master’s Degree thesis called GFFT (Gridshell Form Finding Tool) (Pone et al. in Beyond the limits of man, Wroclaw, Poland, 2013). We will also describe the two latest projects to which we have committed ourselves since 2016 up to today. We will also illustrate how the creation of the new IT tool was based on previous experiences that have influenced subsequent projects (Pone 2017). Keywords Wood design · Parametric design and fabrication strategies Active bending in timber structures · Complex timber structures Wood complex surface

S. Pone (B) · D. Rando Department of Architecture (DiArc), University of Naples Federico II, Naples, Italy e-mail: [email protected] D. Rando e-mail: [email protected] D. Lancia Gridshell.it, Naples, NA, Italy e-mail: [email protected] © Springer Nature Switzerland AG 2019 F. Bianconi and M. Filippucci (eds.), Digital Wood Design, Lecture Notes in Civil Engineering 24, https://doi.org/10.1007/978-3-030-03676-8_8

251

252

S. Pone et al.

1 Introduction The creation of the GFFT 2.0 tool highlights Gridshell.it’s1 determination to change the resistant section within the same structure; a decision that starts from the assumption that an active bent timber gridshell can refer to the structural behavior of thin vaults in reinforced concrete, mainly resistant to compression, but that can also have mixed behavior in which all compressed zones are joined by parts subjected to bending and compression (Pone 2012). This study therefore starts from the intention to map a generic surface, due to the different levels of stress that it will be subjected to, and as a results propose different resistances. These resistances will vary according to the inertia of the section and other possible factors, in order to build gridshells that are no longer homogenous in all of their parts. Our latest IT tool, focuses on varying only the inertia of the resistant section and questions the assumption according to which in the design of wooden gridshells, the systematic use of funicular forms is the only way possible to interpret this structural typology. Of much greater allure is the theory that wants to use the timber gridshell as a structure capable of building a variety of different forms, regardless of their structural behavior. These forms will respond well to the stresses of pure compression, conforming to its essence of “shell”, as well as showing its ability to withstand even bending stresses, as its “grid” nature suggest. The in-depth examination and analysis of the theory of the variability of the crosssec