This research investigates the testing methods at the base of the performance and behaviour assessment of free-form and horizontal glazed surfaces, applied to two different roofing systems designed for the Merlata Bloom renovation project in Milan. Starting from the analysis of the regulatory framework at the base of the design of similar enveloping systems, is presented an overview of the product standard UNI EN 13830 and harmonised standards that report the performance requirements and design guidelines to realise curtain walls, defining the differences and similarities with the design processes for free-form and horizontal glazed roofs. The study presents the testing methods carried out on site on samples of the built systems and in laboratory on a Performance Mock-Up composed of representative modules. The results expected and achieved are expressed and analysed, presenting additional solutions to limit the occurrence of air and water infiltration. The objective of the research is to provide a product standard for glass surfaces designed and realized with curtain walling systems with an inclination greater than 15° from the vertical axis. This regulation would be based on the guidelines reported in the UNI EN 13830 and the standards already in effect relevant for the design of transparent and opaque envelope surfaces, with the implementation of specific analyses in relation to the structural nature of the elements and the orientation.
La presente ricerca indaga i metodi di prova alla base della valutazione delle prestazioni e del comportamento delle superfici vetrate free-form e orizzontali, applicati a due diversi sistemi di copertura realizzati per l’innovativo progetto di Merlata Bloom a Milano. Partendo dall'analisi del contesto normativo alla base della progettazione di sistemi di involucro simili, viene presentata una panoramica della norma di prodotto UNI EN 13830 e di quelle armonizzate che trattano i requisiti prestazionali e le caratteristiche tecnologiche per la realizzazione di facciate continue, definendo le differenze e le analogie con i processi di progettazione delle coperture vetrate free-form e orizzontali. Lo studio presenta i metodi di prova effettuati su campioni dei sistemi eseguiti in cantiere e su un Performance Mock-Up composto da moduli rappresentativi in laboratorio. I risultati attesi e raggiunti sono riportati e analizzati, presentando soluzioni aggiuntive per limitare le infiltrazioni di aria e acqua. L'obiettivo della ricerca è quello di fornire una norma di prodotto per le superfici vetrate progettate e realizzate con sistemi di facciata continua e con un'inclinazione maggiore di 15° rispetto all'asse verticale che si basi sulle linee guida riportate nella UNI EN 13830 e sulle norme già in vigore relative alla progettazione di superfici di involucro trasparenti e opache, con l'implementazione di analisi specifiche in relazione alla natura strutturale degli elementi e all'orientamento.
On-site and experimental testing on a free-form glass roof: applied on the project "Merlata Bloom Milano"
Gasparini, Angelo
2022/2023
Abstract
This research investigates the testing methods at the base of the performance and behaviour assessment of free-form and horizontal glazed surfaces, applied to two different roofing systems designed for the Merlata Bloom renovation project in Milan. Starting from the analysis of the regulatory framework at the base of the design of similar enveloping systems, is presented an overview of the product standard UNI EN 13830 and harmonised standards that report the performance requirements and design guidelines to realise curtain walls, defining the differences and similarities with the design processes for free-form and horizontal glazed roofs. The study presents the testing methods carried out on site on samples of the built systems and in laboratory on a Performance Mock-Up composed of representative modules. The results expected and achieved are expressed and analysed, presenting additional solutions to limit the occurrence of air and water infiltration. The objective of the research is to provide a product standard for glass surfaces designed and realized with curtain walling systems with an inclination greater than 15° from the vertical axis. This regulation would be based on the guidelines reported in the UNI EN 13830 and the standards already in effect relevant for the design of transparent and opaque envelope surfaces, with the implementation of specific analyses in relation to the structural nature of the elements and the orientation.| File | Dimensione | Formato | |
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https://hdl.handle.net/10589/214419