The design of steel constructions in seismic conditions

Abstract

In this article, the principles of designing of seismic resistant steel frames of industrial buildings are considered. The particular attention is paid to the damage causes of the steel frames under the seismic loads affects, and to the requirements that must be considered while designing the steel frames in seismically active areas. The most suitable materials that can be used to strengthen the steel frames have been studied. The strengthening is possible due to the frame’s proper operating in accordance with arising seismic loads. The analysis of the loads, which are calculated according to the regulatory documents of Russia and other countries, is presented. As well, the loads have been compared to each other. There is a review of possible experimental methods to determine the frame’s strength under the seismic loads in the article. In addition, there are some critics on the existing regulatory documents and on, exactly, the formulas and coefficients used, as well as on the proposed alternative solutions. We have made the research of the effect that soil has on the steel frame’s strength characteristics under the seismic loads. Promising constructive solutions for steel frames in case of earthquakes are indicated. The experience of designing the earthquake-resistant structures in other countries has been studied. The materials and documents about the past accidents in Russia and world’s other countries have been analyzed. The studying of the influence of the steel frames own vibrations and their constructional forms on the foundation’s pliability is also presented here.