Vertical Seismic Vibration of the Large-span Trussed Beam

Our country is located in a seismically active zone of the Earth. Accordingly, it is very important for us to consider the seismic load in the design of the building. The vertical component of the seismic acceleration of the base is often the cause of destruction of buildings during strong earthquakes. Consideration of the mentioned effect for certain types of structural elements of buildings is a standard requirement. Large-span steel truss belongs to these types of structures. The dynamic characteristics of the structure are the main parameters that form the seismic load. This paper considers a method for determining the dynamic characteristics of a large-span steel trussed beam, considering the influence of their bearing structures.