Static and dynamic stiffness of reinforced concrete beams

• Autorzy: Musiał M.
• Języki publikacji: EN

Abstrakty

EN

In this paper experimental studies of reinforced concrete beams are reported. The influence of load on deflections and basic eigenfrequency was investigated. Eigenfrequencies were registered using the operational modal analysis. Static stiffness (on the basis of deflections) and dynamic stiffness (on the basis of eigenfrequencies) were obtained indirectly (with calculations). A comparative analysis shows that these figures differ in value. The paper is completed with the theoretical analysis.

Słowa kluczowe

EN

beam; dynamic stiffness; eigen vibrations; experimental studies; reinforced concrete

PL

belka; sztywność dynamiczna; badania eksperymentalne; beton zbrojony

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2012
• Tom: Vol. 12, no. 2
• Strony: 186--191
• Opis fizyczny: Bibliogr. 17 poz., rys., tab., wykr.

Twórcy

autor

Musiał M.

• Department of Civil Engineering, Institute of Building Engineering, Division of Concrete Structures, Wroclaw University of Technology, pl. Grunwaldzki 11, 50-377 Wroclaw, Poland

Bibliografia

• [1] S. Jerath, M.M. Shibani, Dynamic stiffness and vibration of reinforced concrete beams, ACI Journal 82 (2) (1985) 196–202.
• [2] K.C. Johns, M.D. Belanger, Dynamic stiffness of concrete beams, ACI Journal 78 (3) (1981) 201–205.
• [3] PN-B-03264:2002, Plain, reinforced and prestressed concrete structures analysis and structural design, Polish Standard, Warsaw, 2002 (in Polish).
• [4] M. Batel, Operational modal analysis another way of doing modal testing, Sound and Vibration (2002) 22–27.
• [5] J. Grosel, M. Musiał, A. Ubysz, Z. Wójcicki, Experimental studies on the influence of load history on eigenfrequencies of concrete beam, Inżynieria i Budownictwo 12 (2010) 714–716 (in Polish).
• [6] A.S. Ghods, B. Moghaddasie, Evaluating the dynamic characteristics of reinforced concrete beams, in: Proceedings of the Fourth International Conference on FRP Composites in Civil Engineering (CICE 2008), 2008.
• [7] S. Jerath, M.M. Shibani, Dynamic modulus for reinforced concrete beam, Journal of Structural Engineering 110 (6) (1984) 1405–1410.
• [8] A. Malaikah, K. Al-Saif, R. Al-Zaid, Prediction of the dynamic modulus of elasticity of concrete under different loading conditions, in: Proceedings of the International Conference on Concrete Engineering and Technology, 2004.
• [9] PN-EN 1992-1-1:2008, Design of concrete structures. Part 1-1: general rules, and rules for buildings, Polish Standard, Warsaw, 2008 (in Polish).
• [10] W. Glabisz, Mathematica in Structural Mechanics Issues, WUT Publishing House, Wroclaw, 2003 (in Polish).
• [11] S. Wolfram, The Mathematica Book, Wolfram Media and Cambridge University Press, Champaign, 1999.
• [12] W. Hansen, Static and Dynamic Elastic Modulus of Concrete as Affected by Mix Composition and Compressive Strength, ACI Special Publication 98 (1986) 115–137.
• [13] J. Hoła, K. Schabowicz, State-of-the-art non-destructive methods for diagnostic testing of building structures anticipated development trends, Archives of Civil and Mechanical Engineering 10 (3) (2010) 5–18.
• [14] PN-B-03040:1980, Machine foundations and supporting structures, Calculation and design, Polish Standard, Warsaw, 1980 (in Polish).
• [15] R. Wlazło, Dynamic stiffness of reinforce concrete beams, in: Proceedings of the XXXIII Konferencja Naukowa KILiW PAN i KN PZITB, 1987 (in Polish).
• [16] M. Kamiński, M. Musiał, A. Ubysz, Eigenfrequencies of the reinforced concrete beams methods of calculations, Journal of Civil Engineering and Management 17 (2) (2010) 278–283.
• [17] M. Musiał, Vibrations of reinforced concrete beams with consideration of discrete crack model, Ph.D. Dissertation, Wroclaw University of Technology, Wroclaw, 2010 (in Polish).