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In determining the effects of actions when designing road structures, the influence of the loads caused by the buffeting of the passing vehicles (high-cycle forces) is neglected. Taking into account the fatigue load, they can have a very large impact on the assessment of the load capacity. The subject of analysis is the pressure and velocity distributions around a truck. At the current stage of the work, it can be concluded that the gusts of passing trucks affect the dynamics of the gantry structure and the elements suspended on it, such as platforms or boards. There is a strong suction force. It is possible to simplify the model in such a way that the board and the wind move with the speed of the vehicle while the truck remains stationary. Due to the lack of reliable guidelines for strength calculations of such structures, advanced Computational Fluid Dynamics (CFD) tools were used. This paper also presents a shaking table built by the authors for dynamic loading of structural models. It describes the construction of the shaking table and the kind of movement made by the table deck. It also shows a scheme of the table deck suspension on linear bearings, as well as a scheme of the table motion system. [ABSTRACT FROM AUTHOR]

The article presents informations of japanese triple natural disaster 2011 and review elements of the book written by Catherine Boni Ganbare! Warsztaty umierania which is the latest publication in Poland deals with direct eyewitnesses of these events. The aim of the study. In this article the author presents a picture of the triple disaster presented in a book by Catherine Boni and compares them with other sources and statistical data to show the subject and the effects of natural disasters that occurred in Japan in 2011. The method of research. The research of this of this article which was used by the author was the book K. Boni, where a reporter presents eyewitness accounts of the Japanese natural disaster of 2011 and author compares them with other scientific, informative and statistical sources. Results and Conclusions. Events from 2011 had not only affected Japanese society, but had forced many entities to re-look at the use and creation of methods of protection against the effects of earthquakes and tsunamis, as well as the prompt to rethink both the Japanese authorities and the authorities of all countries of the world over the use of nuclear energy especially after the reactor accident in Fukushima. [ABSTRACT FROM AUTHOR]