Buildings in reinforced concrete represent a significant proportion of housing in Italy, and a large portion has been built since the 1970s in the absence of seismic standards or by adopting older design methods in territories currently classified as seismic. Furthermore, the low energy performance of these buildings is responsible for 40% of total energy consumption in the EU, as well as the same proportion of harmful emissions. In general, all operations of seismic retrofitting and interventions aimed at improving the power quality of perimeter surfaces are considered in a separate and disjointed way. This research aims to integrate the two types of intervention, providing an alternative to traditional interventions with the design of a module, a "frame" repeatable as a façade. The module is characterized by: dissipative systems in reinforced elastomer; a rigid steel frame; insulation, with the possible insertion of elements for passive solar gain; a finished shell. The case study to study this seismic- and energyimprovement project is a residential tower located in Ascoli Piceno. Assessing damage to structural elements and ductile and fragile mechanisms is, in most cases, not being realized. Analyzing the covering and construction, the building appears to be out of compliance with thermal transmittance values required by law, and falls under energy class G, exceeding the limit set by legislative regulations (equal to 64.7 kWh/m2 per year). Applying the module designed allows for a reduction of initial displacements around 30%, and an achievement of class A energy performance.

Adeguamento strutturale ed energetico degli edifici esistenti Structural and Energetic Adaptation of Existing Buildings

COCCI GRIFONI, ROBERTA
2014-01-01

Abstract

Buildings in reinforced concrete represent a significant proportion of housing in Italy, and a large portion has been built since the 1970s in the absence of seismic standards or by adopting older design methods in territories currently classified as seismic. Furthermore, the low energy performance of these buildings is responsible for 40% of total energy consumption in the EU, as well as the same proportion of harmful emissions. In general, all operations of seismic retrofitting and interventions aimed at improving the power quality of perimeter surfaces are considered in a separate and disjointed way. This research aims to integrate the two types of intervention, providing an alternative to traditional interventions with the design of a module, a "frame" repeatable as a façade. The module is characterized by: dissipative systems in reinforced elastomer; a rigid steel frame; insulation, with the possible insertion of elements for passive solar gain; a finished shell. The case study to study this seismic- and energyimprovement project is a residential tower located in Ascoli Piceno. Assessing damage to structural elements and ductile and fragile mechanisms is, in most cases, not being realized. Analyzing the covering and construction, the building appears to be out of compliance with thermal transmittance values required by law, and falls under energy class G, exceeding the limit set by legislative regulations (equal to 64.7 kWh/m2 per year). Applying the module designed allows for a reduction of initial displacements around 30%, and an achievement of class A energy performance.
2014
9788891604361
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/369427
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