Project R-14851
Title
CIRCOMP – Developing a circular steel-timber composite floor system through innovative and
demountable shear connections (Research)
Abstract
This project aims at the development and characterization of an innovative and efficient connection
for steel-timber composite (STC) floor and deck systems designed for easy disassembly and reuse,
supporting therefore the circularity of material use in the construction industry. The technological
solution that will be developed will match the latest constructional needs and trends, such as
structural detailing and design for less raw material consumption and minimized waste thanks to a
circular cradle-to-cradle strategy, new straightforward guidance towards an increased use of
environmentally-friendly bio-based materials in composite solutions and assessment of service life
and durability. To achieve this goal, an innovative steel-to-timber connection will be developed,
optimized and studied through experimental tests combined with finite-element numerical
simulations, in addition to establishing and validating analytical design models. A mechanical
characterization of the developed STC solution, including the impact of hygroscopic deformations of
timber and a durability assessment, will be accomplished, ensuring both circularity and safety during
the service life of the structure. A design for disassembly of the STC connection will be achieved,
directly implementable at industrial level, contributing to a rapid transition to a climate-neutral and
resource efficient construction industry by 2050.
Period of project
01 April 2024 - 31 March 2026