Reinforced ice structures: In the footsteps of Candela

Based on project experience over the last years, fibre reinforced ice has proven to be a strong and suitable building material for temporary structures in a cold environment. Unlike traditional igloo structures, no stacked blocks are used. Instead, relatively thin shells are created by spraying subsequent thin layers of water mixed with cellulose fibres on inflatable formwork which is removed afterwards. This paper describes the overall design process and construction of a full-scale cellulose-ice composite structure, inspired by Félix Candela’s famous reinforced concrete hypar shells. The project was built by university students and staff in the framework of an international project in Finland during the winter of early 2016.Universiteit Gentinfo:eu-repo/semantics/publishedVersio

Compressive strength of ice and cellulose-ice composite

This paper aims to give an insight into the compressive strength of the icecellulose composite which was recently used to build two challenging reinforced ice structures in Juuka, Finland: (1) a large reinforced arch bridge inspired by Leonardo Da Vinci and (2) a hypar shell inspired in Félix Candela. A comparison with the behaviour of ice specimens extracted from the Lake Pielinen is also provided

Perceptual effects of overlapping curved glass

The application of glass in contemporary architecture explores perceptual phenomenon that intentionally change the way we experience space. SANAA'S recent work uses glass in a radical way, proposing a renewed approach to transparency. The Toledo Glass Pavilion, with most spaces defined by glass walls, presents an intense visual experience. The overiapping of glass produces perceptual effects that vary according to depth and lighting conditions. This paper proposes an altemative reading of these phenomena, beyond its aesthetical delight, based on contemporary artistic practices.Building TechnologyArchitectur

Connecting through the reinforcement: Design, testing and construction of a folded reinforced glass structure

A reinforced glass folded structure has been developed using an innovative connection method. The concept relies on extending the reinforcement outwards from the laminated glass and using it to transfer a significant part of the load. The goal is to accomplish a glass element with high stiffness, connected by using a discrete almost invisible and easily assembled/disassembled mechanism. This paper addresses the main issues regarding the design and fabrication of a 90? folded structure, the experimental investigation of the out-of-plane compressive response and the construction of a full-scale prototype (2,95m high and 5,5m long) at the campus of the University of Minho. It is demonstrated that the system offers both structural and aesthetical advantages. It combines a specific aesthetic, deriving from its hybrid character, with a considerable amount of out-of-plane compressive strength before and after failure.Architectural Engineering +TechnologyArchitecture and The Built Environmen

On-site geometrical measurements of an experimental ice composite shell through TLS and photogrammetry

Measurement techniques for determining the thickness and shape of ice structures can be divided into contact and non-contact methods. The non-contact methods are the most appropriate for measuring relatively thin fiber reinforced ice shells because they hold no risk for damages. Furthermore, these measurement techniques can be repeated during the icing process, which, additionally, enables to produce intermediate results. This paper describes the 3D measurement and modelling methods used for the “Candela pavilion” that was built by university students and staff in the framework of an international project in Juuka, Finland during the winter of early 2016

On-site geometrical measurements of an experimental ice composite shell through TLS and photogrammetry

Measurement techniques for determining the thickness and shape of ice structures can be divided into contact and non-contact methods. The non-contact methods are the most appropriate for measuring relatively thin fiber reinforced ice shells because they hold no risk for damages. Furthermore, these measurement techniques can be repeated during the icing process, which, additionally, enables to produce intermediate results. This paper describes the 3D measurement and modelling methods used for the “Candela pavilion” that was built by university students and staff in the framework of an international project in Juuka, Finland during the winter of early 2016