An Integrated Approach to Improve Seismic and Energetic Behaviour of RC Framed Buildings Using Timber Panels

In the present paper, an integrated intervention system applicable to concrete-framed buildings is presented. The purpose of the intervention is to improve both the seismic and the energetic behaviour of such buildings using cross-laminated timber (CLT) panels. Two alternative intervention configurations with different levels of invasiveness are described. Considering a double-wythe masonry-infilled frame, the most invasive configuration consists in the replacement of the external masonry wythe with the CLT panel, while the least invasive configuration consists in the arrangement of the CLT panel from the outside without removing the wythes. The technical details and implementation procedures were studied, considering functionality and disturbance to occupants. An isolated one-storey-one-bay frame was used as a reference for the seismic and thermal analyses. Subsequently, the two intervention configurations were applied to a case-study building by identifying two alternative intervention strategies. The obtained results showed that the proposed integrated intervention approach can significantly reduce both the seismic vulnerability and the energy consumption of concrete buildings.

[1]  Andrius Keizikas,et al.  Architectural Solutions to Increase the Energy Efficiency of Buildings , 2012 .

[2]  Mohammad Reza Tabeshpour,et al.  A new procedure to determine equivalent strut of infill walls with openings for engineering applications , 2020 .

[3]  J. Ingham,et al.  Seismic out-of-plane retrofit of URM walls using timber strong-backs , 2021 .

[4]  Olatz Pombo,et al.  The challenge of sustainable building renovation: assessment of current criteria and future outlook , 2015 .

[5]  Paolo Franchin,et al.  In-plane response of masonry infill walls: Comprehensive experimentally-based equivalent strut model for deterministic and probabilistic analysis , 2018, Engineering Structures.

[6]  Georgios Martinopoulos,et al.  High energy efficiency renovation options for a typical apartment. The case study of the SPITI project , 2020 .

[7]  Selim Günay,et al.  Progressive Collapse Analysis of Reinforced Concrete Frames with Unreinforced Masonry Infill Walls considering In-Plane/Out-of-Plane Interaction , 2015 .

[8]  Robert F. Boehm,et al.  Passive building energy savings: A review of building envelope components , 2011 .

[9]  M. Fardis,et al.  Degradation of Shear Strength of Reinforced Concrete Members with Inelastic Cyclic Displacements , 2004 .

[10]  Gianpiero Evola,et al.  Energy, Seismic, and Architectural Renovation of RC Framed Buildings with Prefabricated Timber Panels , 2020, Sustainability.

[11]  Daniel Aelenei,et al.  Analysis of the condensation risk on exterior surface of building envelopes , 2008 .

[12]  Yan Xiao,et al.  Seismic Shear Strength of Reinforced Concrete Columns , 1994 .

[13]  Ezio Giuriani,et al.  Combining seismic retrofit with energy refurbishment for the sustainable renovation of RC buildings: a proof of concept , 2017 .

[14]  Marco Di Ludovico,et al.  Seismic Vulnerability for RC Infilled Frames: Simplified Evaluation for As-Built and Retrofitted Building Typologies , 2018 .

[15]  Rui Pinho,et al.  Detailed assessment of structural characteristics of Turkish RC building stock for loss assessment models , 2008 .

[16]  Monica Rossi,et al.  External walls design: the role of periodic thermal transmittance and internal areal heat capacity , 2014 .

[17]  Luca A. Tagliafico,et al.  Life-cycle approach to the estimation of energy efficiency measures in the buildings sector , 2020 .

[18]  G. Evola,et al.  Seismic and Energy Retrofit of Apartment Buildings through Autoclaved Aerated Concrete (AAC) Blocks Infill Walls , 2019, Sustainability.

[19]  Maurizio Piazza,et al.  Use of timber panels to reduce the seismic vulnerability of concrete frame structures , 2021 .

[20]  Fabio Di Trapani,et al.  Seismic fragility assessment of infilled frames subject to mainshock/aftershock sequences using a double incremental dynamic analysis approach , 2018, Bulletin of Earthquake Engineering.

[21]  José I. Barredo,et al.  Are European Cities Becoming Dispersed? A Comparative Analysis of 15 European Urban Areas , 2006 .

[22]  Humberto Varum,et al.  Double-Leaf Infill Masonry Walls Cyclic In-Plane Behaviour: Experimental and Numerical Investigation , 2018 .