Determination Of Seismic Transport Effects On Buildings
Free (open access)
D. Makovička & D. Makovička Jr.
Building structures in the vicinity of above-ground or underground transport lines are loaded by vibrations excited by the passage of motor vehicles or trains. These vibrations propagate as technical seismicity effects through the soil to the foundations of buildings in the vicinity of their source. Due to its tuning, the building structure usually amplifies the effects of technical seismicity. These vibration levels may have an impact on people working or living in the buildings, or on sensitive equipment installed in the buildings. This paper deals with an experimental determination of the transport actions generated by various types of vehicles (trucks, trams, trains) in different conditions (roads, railways). The purpose of the paper is to formulate actions specific for various types of transport conditions as a basis for the design of structures. Keywords: technical seismicity, transport effect, vibration measurement. 1 Introduction The character of the vibrations generated by transport depends particularly on vehicle weight, driving speed, how the vehicles move and in what way and direction. Another parameter is the \“evenness” of the vehicle trajectory, in terms of whether it concerns the quality of the pavement surface or the horizontal and vertical railway alignment, the way in which the rails are fastened, the composition of the pavement courses, etc. The magnitude of the vibrations is influenced not only by the vibration parameters at the source but also by the composition of the environment on the way from the source to the threatened
technical seismicity, transport effect, vibration measurement.