Research of dynamic influence from technological equipment on work of reinforced concrete slabs of overlapping

Abstract

This article presents full-scale experimental measurements of the parameters of the elements of the load-bearing structures of thebuilding in real time with their subsequent processing and determination of the dynamic characteristics of such elements and the structure as awhole for further modeling and calculation ofbuilding elements.The research is based on an approach based on the hypothesis of considering systems of complex structure, which has a dynamic impact, as a single system with corresponding dynamic characteristics. Within the framework of such a review of the system, it is necessary to identify and assess the impact of various origins.As a dynamic criterion for assessing the condition of load-bearing structures were used the values of natural frequencies of oscillations, their actual measurement on different floors of the existing building.The research was performed by determining the integral dynamic parameters with subsequent analysis and establishment of causal relationships. In the course of the research, records of continuousfixation of dynamic action parameters were used directly on load-bearing structures. The obtained data were processed using ZETLAB SEISMOsoftware using spectral analysis.The obtained spectra were analyzed in order to determine the numerical values of the oscillation frequencies, which correspond to the main peakson the spectrograms and are a consequence of the design response to the sources of dynamic influence.The obtained data will be used to assess the stress state of fiber concrete slabs.