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دانلود کتاب Structural Foundation Designers’ Manual



دانلود کتاب Structural Foundation Designers’ Manual (راهنمای طراحان فونداسیون سازه)



W.G. Curtin, MEng, PhD, FEng, FICE, FIStructE, MConsE

G. Shaw, CEng, FICE, FIStructE, MConsE

G.I. Parkinson, CEng, FICE, FIStructE, MConsE

J.M. Golding, BSc, MS, CEng, MICE, FIStructE

Second Edition revised by

N.J. Seward, BSc(Hons), CEng, FIStructE, MICE


Foundation design could be thought of as analogous to a
beam design. The designer of the beam will need to know
the load to be carried, the load-carrying capacity of the
beam, how much it will deflect and whether there are any
long-term effects such as creep, moisture movement, etc. If
the calculated beam section is, for some reason, not strong
enough to support the load or is likely to deflect unduly,
then the beam section is changed. Alternatively, the beam
can either be substituted for another type of structural element,
or a stronger material be chosen for the beam.
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دانلود کتاب Structural Foundation Designers’ Manual

دانلود کتاب Foundations For Dynamic Loads



دانلود کتاب  Foundations For Dynamic Loads (فونداسیون برای بارهای دینامیکی)






 .Design of foundations in earthquake prone areas needs special considerations

Shallow foundations may experience a reduction in bearing capacity and increase in

settlement and tilt due to seismic loading. The reduction in bearing capacity depends

on the nature and type of soil and ground acceleration parameters. In the case of

piles, the soil-pile behavior under earthquake loading is generally non-linear. The

nonlinearity must be accounted for by defining soil- pile stiffness in terms of strain

dependent soil modulus. A comparison of observed and predicted pile behavior under

dynamic loads has attracted the attention of several investigators. The lateral dynamic

pile response of single piles predicted by analytical models often yields higher natural

frequencies and lower resonant amplitudes compared to those determined from field

tests in horizontal vibrations only. This has been found to be due to overestimated

shear modulus and radiation damping of the soil. The authors made an investigation

to determine a simple method to improve the theoretical predictions of piles

embedded in fine soils. Based upon this investigation shear strain dependent

reduction factors are proposed for determining the shear modulus and damping for

.pile response calculations


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