Impact Effect on R.C. Slabs: Analytical Approach
Publication: Journal of Structural Engineering
Volume 111, Issue 7
Abstract
Three simple analytical methods to study the impact effect on R.C. slabs are presented. These methods are the impact factor method, the equivalent mass method, and the continuous mass method. Several aspects that affect the slab's response due to impact are investigated. These aspects include the relation between the impact load and its actual static load when acting on the structure, the duration of impact load when acting on the structure, and the dynamic deflections of the reinforced concrete slabs due to impact. The impact is simulated by dropping a steel ball from different heights on the center of simply supported reinforced concrete slabs. Dynamic deflection, impact time, maximum penetration of the ball into the slab, and the maximum dynamic load that the slab will experience are predicted using the simple analytical methods. Results from these methods are compared with similar experimental ones. In general, the analytical results agreed with the experimental ones.
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References
1.
Biggs, J., Introduction to Structural Dynamics, McGraw‐Hill Book Co., New York, N.Y., 1966.
2.
Chang, W. S., “Impact of Solid Missiles on Concrete Barriers,” Journal of the Structural Division, ASCE, Vol. 107, No. ST2, Feb., 1981, pp. 257–271.
3.
Doyle, J. M., “Design of Missile Resistance Concrete Panels,” Reprints of 2nd International Conference on Structural Mechanics, Vol. 4, 1973, p. 6.
4.
Glynn, T. E., et al., “Flexural Strength of Reinforced Concrete in Static and Impact Tests,” Final Technical Report, University of Dublin, 1978.
5.
Jensen & Chenoweth, “Applied Strength of Materials,” McGraw‐Hill Book Co., New York, N.Y., 1975, pp. 325–327.
6.
Norris, Hansen, Halley & Biggs, “Structural Design for Dynamic Loads,” McGraw‐Hill Book Co., New York, N.Y., 1959, pp. 127–130.
7.
Sliter, G., “Assessment of Emperical Concrete Impact Formulas,” Journal of the Structural Division, ASCE, Vol. 106, No. ST5, May, 1980, pp. 1023–1045.
8.
Timoshenko, S. P., “Theory of Elastic Stability,” McGraw‐Hill Book Co., New York, N.Y., 1961.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 111 • Issue 7 • July 1985
Pages: 1590 - 1601
Copyright
Copyright © 1985 ASCE.
History
Published online: Jul 1, 1985
Published in print: Jul 1985
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