INNOGLAST

 

Development of innovative steel-glass-structures in respect to structural and architectural design

Short description

The aim of the project INNOGLAST is the development of new and innovative steel-glass-structures in respect to architectural, static-structural and fabrication criteria. Different types of steel-glass constructions are analysed or even newly developed focusing on an optimal structural interaction between steel and glass. Thus, the researches comprise new hybrid steel-glass beams, consisting of steel flanges and a glass web, and steel-supported glazing systems. 1. Hybrid steel-glass-beams: The joint between glass web and steel flange will be made by bonding to achieve preferably constant stress propagation in the glass. The choice of adhesives has a central role in the project because the load carrying-capacity of the composite section depends primarily on mechanical material characteristics of the joint. Ageing behaviour of the adhesives shall also be respected. The capacity of redundancy and the load carrying capacity of the hybrid steel-glass-beam vary depending on the number of glass panels and the number of layers of one laminated glass panel. The capacity of redundancy is higher with more than one glass panel whereas the load carrying capacity is higher with one glass panel. 2. Steel-supported glass-systems: Investigations are carried out analysing steel-supported glazing systems with special regard on circular hollow sections and oval tubular members respectively. The connection between the steel members and the glass is usually made by articulated joints using brackets or attachments that are directly made on the structure. These brackets provide for limited freedom of movement, and therefore it is necessary to design the structure to facilitate installation tolerances and to allow for transient and longer term movements. Alternatively, bonding is used to join steel and glass. The steel-glass systems should also fail "safe" i.e. failure of one element should not lead to collapse of the system.

Research program

Research Programme of the Research Fund for Coal and Steel (RFCS)

Partners

Duration of project

07/2007 - 06/2010

Contact person

Björn Abeln