Abstract
This paper aims to measure natural frequencies of Profiled Steel Sheet Dry Board (PSSDB) with Concrete infill (PSSDBC) system. For this purpose, experimental tests by estimation of Frequency Response Function (FRF) and a numerical method by development of Finite Element Model (FEM) are used. The connection stiffness between Peva45 as Profiled Steel Sheet (PSS) and different concrete grades of 25 (C25), 30 (C30), and 35 (C35) are measured by push-out tests to be used in the FEM. The effect of presence of concrete in the PSSDB system on the natural frequencies such as Fundamental Natural Frequency (FNF) of the system is investigated. The variability in the FNF of the studied system under different parameters such as concrete grades, thicknesses of PSS and Dry Board (DB), and boundary conditions is determined. In a wide numerical study, the FNF of the PSSDBC system with practical dimensions is revealed for different lengths, widths, and boundary conditions. The results help designer predict serviceability and design criteria of the studied panels.
Highlights
According to Wright and Evans [51], using profiled steel sheeting in composite slabs dominated floor constructions during the eighties
This paper reveals experimentally and numerically the natural frequency of the PSSDBC system to find the effects of different parameters on the Fundamental Natural Frequency (FNF) of the system
Comparing the experimental results of the earlier and current studies demonstrated that the natural frequencies of the PSSDBC system were less than the Profiled Steel Sheet Dry Board (PSSDB) system
Summary
According to Wright and Evans [51], using profiled steel sheeting in composite slabs dominated floor constructions during the eighties. Filiatrault et al revealed natural frequency and mode shapes of a plywood-joist system for different boundary conditions by finite strip method and compared with experimental test results which showed to have a very good agreement. Ju et al developed a new composite floor system and measured the natural frequencies and damping ratios of the system by experimental tests for three different construction steps; steel erection stage, concrete casting stage, and finishing stage. They compared the results with international codes to evaluate the serviceability of the proposed floor system and obtained good vibration characteristics [28]. These developed panels when applied as a flooring system are categorized as LFF or HFF to reveal the occurrence of resonance under human walking load and design criteria, and whether they are comfortable or not for human occupant
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