Experimental Methods of One-floor Steel Constructions’ Seismic Stability – Analysis of Results

Abstract

Abstract The article discusses several particularly significant questions related to seismic stability of steel frames. The tests produce the result of steel frame endurance under different loads, implying the condition of structure’s weakening. The paper presents the study of natural seismic noise indices fluctuations, displacement amplitude, noise decrease under various designs and implication of the dynamic loads. The issue of the impact made on the dynamic characteristic of changes are represented in the article’s sections, as well as the review of possible experimental methods of determining the endurance of the frames under seismic loads. The paper represents the empirical study of artificially damaged steel frames performance under the dynamic load, calculation of the extent of steel frame joints displacement, the degree of changes under natural and artificial seismic noise with load implication. The work aims at objective conclusion of frame performance, and states that loads and artificial damages modeling produces ineffective results for estimating the performance of frames in real/natural conditions, due to the fact that the effect made by frame’s connection nodes and the base was not taken into consideration. The paper implies further research in the area, with regard to the joint functioning of the foundation base and the frame under the dynamic load.