ABSTRACT
CLT panels are becoming a widespread structural solution in the realization of new timber structures and, besides, they can be adopted for seismic retrofitting of existing structures such as Reinforced Concrete (RC) frame buildings. Moreover, the use of CLT panels can improve the energetic efficiency as well as other architectural parameters of an existing structures. In this work, an existing 100m tall RC frame-wall building located in Huizhou, China, was chosen as case study. The aims of the study were: 1) analyzing the structural performances of the building, without retrofitting, by means of a nonlinear pushover analysis in order to define structural weaknesses with respect to earthquake actions; 2) propose an architectural solution, where timber panels were positioned in a rational way with respect to architectural functions; therefore re-organizing the internal space and re-designing the existing facades. 3) verify the new structural performances after retrofitting with CLT panels. Additionally, studies on the energy efficiency, quality of the air, natural lighting were performed.
