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Seismic base shear coefficients for concrete silos
The latest edition of the design guidelines from the American Concrete Institute does not give explicit advise to estimate the seismic forces that concrete silos may be subjected to. It refers the reader to the appropriate building codes. Of the major building codes in use, the Uniform Building Code by ICBO (International Conference of Building Officials) appear to give the most useful and implicit guidelines for calculating seismic base shears in concrete silos. The formula for the calculation of the total design base shear in any given direction is given in the paper and an example is calculated. Examples for the needed values, assumptions, and coefficients are listed as follows: (1) Seismic zone coefficient, (2) facility importance factor, (3) a coefficient for non-building structures, (4) total seismic dead load, (5) site coefficient for the soil characteristics, (6) fundamental period of vibration in the direction under consideration, and height. To estimate the fundamental structure period for a circular concrete silo, a simplification is given. The values for another coefficient for some commonly used silo configurations is plotted as a function of diameter, height and wall-thickness.
Seismic base shear coefficients for concrete silos
The latest edition of the design guidelines from the American Concrete Institute does not give explicit advise to estimate the seismic forces that concrete silos may be subjected to. It refers the reader to the appropriate building codes. Of the major building codes in use, the Uniform Building Code by ICBO (International Conference of Building Officials) appear to give the most useful and implicit guidelines for calculating seismic base shears in concrete silos. The formula for the calculation of the total design base shear in any given direction is given in the paper and an example is calculated. Examples for the needed values, assumptions, and coefficients are listed as follows: (1) Seismic zone coefficient, (2) facility importance factor, (3) a coefficient for non-building structures, (4) total seismic dead load, (5) site coefficient for the soil characteristics, (6) fundamental period of vibration in the direction under consideration, and height. To estimate the fundamental structure period for a circular concrete silo, a simplification is given. The values for another coefficient for some commonly used silo configurations is plotted as a function of diameter, height and wall-thickness.
Seismic base shear coefficients for concrete silos
Seismische Belastung von Betonsilos
Haydl, H.M. (author)
Bulk Solids Handling ; 18 ; 233-234
1998
2 Seiten, 2 Quellen
Article (Journal)
English
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