Repozytorium publikacji - Politechnika Gdańska

Earthquake-induced pounding between buildings has been the subject of numerous numerical and experimental studies in the resent years. The phe-nomenon may cause severe damage to structural elements as well as may also lead to the total collapse of colliding structures. A major reason leading to pounding between adjacent, insufficiently separated buildings results from the differences in their dynamic properties. The aim of this paper is to show the results of the numerical analysis focuses on pounding between two L-shaped asymmetric steel buildings under earthquake excitation. In order to identify the dynamic characteristics of analyzed structures, the modal analysis has been first conducted. Then, the detailed dynamic analysis of interacting structures under earthquake excitation has been performed. The three components of the El Centro earthquake have been used in the study. The results of numerical analysis indicate that the earthquake-induced collisions between two asymmetric steel structures may substantially influence their behaviour leading to both increase and decrease in the response. The results also indicate that torsional vibrations (due to eccentric pounding) play an important role in the overall pounding-involved response of asymmetric steel buildings under earthquake excitations.

Autorzy

• mgr inż. Barbara Sołtysik link otwiera się w nowej karcie ,
• prof. dr hab. inż. Robert Jankowski link otwiera się w nowej karcie