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mm - GRAITEC Info

mm - GRAITEC Info

mm - GRAITEC Info

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Test n° 06-0208SSLLB_DTU133Calcul des diamètres et raideurs équivalents à long termeD113⎞3b⎛11000⎞eq ⎟ = 1,97×0,18×⎜ ⎟ = 2, 57s⎝ 29 ⎠⎛ E= 1,97h⎜⎝ E⎠13⎛ Es⎞⎛E ⎞s⎛ 29 ⎞⎛29 ⎞KDe= 0,58⎜⎟ 0,58 ⎜ ⎟⎜⎟ = 12,91Mpa/ mh⎜ = ×E⎟⎝ ⎠⎝b ⎠ ⎝ 0,18 ⎠⎝11000⎠13mCalcul des effets conjugués du retrait différentiel et d'un gradient de température• εr= 0.4<strong>mm</strong>/ m• Dmax= 20 <strong>mm</strong> => majoration de 7% => εr= 0 ,4*1,07 = 0,43<strong>mm</strong>/ m'• Epaisseur de chape =0 => εr= εr= 0.43<strong>mm</strong>/m• δt= C × H = 70×0.18 = 12. 6°c" '−5−5• εr= εr+ 1.1×δt× 10 = 0.00043+1.1×12.6×10 = 0.00057m/ mLongueur soulevée en angle de joints0.16E . H11000×0.18εr0.16 0.0005769γ0.025" bv• Lsa = × × = × ×= 2. mLongueur soulevée en bord de jointsE . H11000×0.18εr50γ0.025" bv• Lsb = 0.05×× = 0.05×0.00057×= 1. mSoulèvement en angle de joint"εr²0.00057²• wsa = 0,1. Ebv.= 0.1×11000×= 14. 30<strong>mm</strong>γ0.025Soulèvement en bord de joint"2εr• wsb = 0,034. Ebv.= 4. 9<strong>mm</strong>γ145

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