The numerical analysis focused on reduction of vibrations of a temporary steel scaffolding grandstand has been conducted in this paper. These types of structures are regularly subjected to dynamic loads which, in conjunction with light and quite slender structural members, may induce dangerous vibrations. To increase their safety, temporary steel grandstands are usually strengthened with the diagonal stiffeners of tubular cross section. Another approach, by using a diagonal element consisting of two L-shape steel members bonded with polymer mass, has been considered. Dynamic parameters, such as modes of free vibrations and the corresponding natural frequencies for both structural models, have been estimated and compared. Then, the dynamic transient analysis has been conducted and the behaviour of the structure under human-induced excitation due to jumping has been determined. The results of the study show that the response of the temporary steel grandstand equipped with the polymer element as well as with the typical stiffener are substantially different. The application of the polymer element leads to substantial reduction in the levels of peak acceleration and displacement values as the result of high damping properties of polymer applied.
Authors
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1201/b20057-72
- Category
- Aktywność konferencyjna
- Type
- materiały konferencyjne indeksowane w Web of Science
- Language
- angielski
- Publication year
- 2016
