Impact Factors for Simple‐Span Highway Girder Bridges
Publication: Journal of Structural Engineering
Volume 120, Issue 3
Abstract
Vibrational behavior of simple‐span highway girder bridges with rough surfaces due to heavy trucks is discussed. The causes of vibration and dynamic characteristics of bridge structures are investigated in the time and frequency domains. An appropriate vehicle model for vibrational analysis of bridges is found by comparing dynamic responses from four different vehicle models, and impact factors are calculated using the suggested vehicle model with different speeds, deck roughnesses, and span lengths. The results are compared with the values specified by several standard codes, and it is found that the current design codes tend to underestimate impact factors especially in long‐span bridges with rough decks. Finally, empirical formulas for impact factors represented in terms of span length, vehicle speed, and surface roughness of a bridge deck are suggested from the multiple linear regressional using the data obtained from this study.
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References
1.
Ahn, Y. (1987). “An experimental study on dynamic behavior of highway bridges,” MS thesis, Hanyang/University, Seoul, South Korea (in Korean).
2.
Ang, A. H‐S., and Tang, W. H. (1975). Probability concepts in engineering planning and design. John Wiley & Sons; New York, N.Y.
3.
Balmer, G. G. (1973). “Road roughness technology, state of the art.” Report FHWA‐RD‐73‐54, Nat. Tech. Information Service, Washington, D.C.
4.
Bathe, K. J., and Wilson, E. L. (1976). Numerical methods in finite element analysis. Prentice‐Hall, Inc., Englewood Cliffs, N.J.
5.
Bendat, J. S., and Piersol, A. G. (1971). Random data: Analysis and measurement procedures. John Wiley & Sons, New York, N.Y.
6.
Bendat, J. S., and Piersol, A. G. (1980). Engineering applications of correlation and spectral analysis. John Wiley & Sons, New York, N.Y.
7.
Biggs, J. M. (1964). Introduction to structural dynamics. McGraw‐Hill Book Co., New York, N.Y.
8.
Chang, D., Lee, H., and Gwak, J. (1988). “An experimental study on vibrational characteristics of highway bridges by a running vehicle.” KSCE J., Seoul, South Korea, 8, 41–50 (in Korean).
9.
Chang, D., Choi, K., and Lee, H. (1989). “A study on vibration behavior of steel highway bridges.” KSSC J., Seoul, South Korea, 1(1), 131–139 (in Korean).
10.
Csagoly, P. E., and Dorton, R. A. (1977). The development of the Ontario bridge code. Ontario Ministry of Transp. and Communications, Ontario.
11.
Honda, H., Kajikawa, Y., and Kobori, T. (1982). “Spectra of road surface roughness on bridges.” J. Struct. Engrg., ASCE, 108(9), 1956–1966.
12.
Honda, H., Kobori, T., and Yamada, Y. (1986). “Dynamic factor of highway steel girder bridges.” Proc., International Association of Bridge and Structural Engineers, P‐98/86, 57–75.
13.
Inbanathan, M. J., and Wieland, M. (1987). “Bridge vibrations due to vehicle moving over a rough surface.” J. Struct. Engrg., ASCE, 113(9), 1994–2008.
14.
Kim, G. (1986). “Effect of vehicle braking on dynamic response of girder bridge,” MS thesis, Asian Institute of Technology, Thailand.
15.
Lee, H. (1985). “Impact factor of moving load due to surface roughness of girder bridge of variable span,” MS thesis, Asian Institute of Technology, Thailand.
16.
Lee, H. (1989). “A study on dynamic behavior of highway girder bridges,” PhD thesis, Hanyang University, Seoul, South Korea (in Korean).
17.
Quinn, B. E., and De Vries, T. W. (1960). “Highway characteristics as related to vehicle performance.” Highway Research Board Bulletin, 250, 20–39.
18.
Quinn, B. E., and Thompson, R. (1962). “Effect of pavement condition in dynamic vehicle reactions.” Highway Research Board Bulletin, 328, 24–32.
19.
“Specifications for steel bridge.” (1966). British Standard 153, Part 3A, Load, Great Britain.
20.
Standard specifications on highway bridges. (1982). Korean Ministry of Construction, Seoul, South Korea (in Korean).
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 120 • Issue 3 • March 1994
Pages: 704 - 715
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Feb 27, 1992
Published online: Mar 1, 1994
Published in print: Mar 1994
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