Andrés López, Sebastián
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Andrés López, Sebastián
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Publication Access status: Open Access , Ein Beitrag zur Anwendung von Dünnglas und Polycarbonat im Bauwesen(2024)Glass is becoming increasingly important in architecture. Currently, glass laminates serve a multitude of demands beyond room closure, as the composite also should offer protection from heat, sunlight, noise, weather, and fire. At the same time, security requirements are on the rise, particularly with regard to resistance to manual attack as protection against burglary. Furthermore, increasing requirements in the area of active safety are leading to thicker and heavier glazing structures. The recent development of large-sized thin glass panes with a nominal thickness of less than 2 mm, has opened the possibility of their use in the construction industry. This thesis describes the lamination of thin glass and polycarbonate for slight security glazing as an alternative to conventional laminated safety glass as security glazing with resistance against manual attack. In order to determine the required material properties of each layer of the composite, thermomechanical measurements are conducted on the interlayer and polycarbonate. To substantiate that the composite panel is indeed a laminated safety glass, the laminate must be examined in terms of durability under climatic stress, mechanical strength in the pendulum test and the ball drop test, as well as the load-bearing and residual load-bearing behaviour in the four-point bending test. The experimental and numerical investigation of further properties, including resistance class against manual attack, thermal insulation, sound insulation, fire protection and luminous and solar characteristics complete the information on the composite panel as single glazing. The analytical calculation using the sandwich theory and an extended approximate theory, in conjunction with the numerical calculation using the finite-element-method (FEM), enable comparisons with the experimental measured values and with each other. This demonstrates that a thin glass-polycarbonate composite panel can be manufactured up to 73% lighter and 51% slimmer with maintaining the same or improved performance compared to a glass composite as laminated safety glass and security glazing.Source Type:Doctoral ThesisSeries:Schriftenreihe TragkonstruktionVolume number:Dissertation 0213 18