| Autor: |
Aksenov, Ivan, Konstantinov, Aleksandr, Verkhovsky, Aleksei |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2791 Issue 1, p1-8, 8p |
| Abstrakt: |
A test series of PVC windows with different configurations were carried out under laboratory conditions. Thickness of PVC profiles and design of an insulating glass unit were the variable parameters, while the hardware and overall specimen dimensions stay the same. Tests were performed in several stages: only under wind load (according to the standard method); only under temperature load and under the combination of wind and temperature loads (according to a specially developed method). During the tests a sag of window profile elements were measured using linear displacement sensors. The studies have revealed a number of factors and phenomena which are not currently considered in window structures design and strength analysis: a significant influence of PVC profile stiffness on a mullion deflection, the influence of insulating glass unit stiffness on casement window elements deformation, and the influence of hinge joints mobility on casement displacement. It was established, that not only a window mullion, but also a frame should be considered as the element under calculation in the case of wind and temperature loads simultaneous action. The seal failure is observed exactly in the place where the sash adjoins the window frame. These two elements have quite different stiffens, which leads to different deflections and, as consequents, to gaps formation, while the mullion deflection is commensurable with those of the sash and their joint stays airtight. The considered phenomenon must be taken into account when developing the design solution of window hardware (pitch and locations of fixing points). [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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