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008 181197 th eng
035 _a.b10177462
099 9 _aAIT Thesis no. 75
100 0 _aSrisawat Ahviphun
245 1 0 _aCritical stresses induced by wheel load and braking forces in flexible pavements
260 _aBangkok :
_bSEATO Graduate School of Engineering,
_c1964
300 _a29 p.
490 1 _aThesis ;
_vno. 75
502 _aThesis (M.Eng.) - SEATO Graduate School of Engineering
500 _aA thesis submitted in partial fulfillment if the requirements for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand.
520 _aIn most flexible pavement analysis only vertical load is considered; this thesis is concerned primarily with effects resulting from the addition of a horizontal load applied at pavement surface. A horizontal load is created by deceleration of a vehicle on the pavement. In this study the braking force was assumed to be 30 percent of the wheel load. The equations used in this paper are those derived by Vicharn Danvivathana, for the case of homogeneous, isotropic, elastic materials of infinite extent when Poisson's ratio is equal to 0.5. A 9000-lb wheel load was selected for the analytical example. Tires were in the 11.00 series, with a tread width of 8.00 in. and inflation pressure of 90 psi. The analysis indicates that the shear force caused by braking of a vehicle induces significant stresses in the pavement system. This effect is especially pronounced at shallow depths under the pavement surface and should not be ignored in pavement design.
650 0 _aPavements
_xTesting
650 0 _aStrains and stresses
700 1 _aProf. Utai Voodhigula,
_eChairperson
700 1 _aDr. Chai Muktabhant,
_eExamination committee
700 1 _aProf. John Hugh Jones,
_eExamination committee
700 1 _aDean Milton E. Bender Jr.,
_eExamination committee
810 2 _aSEATO Graduate School of Engineering.
_tThesis ;
_vno. 75
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B23161
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