XLS《C-1-1型》

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, ,"温度翘曲应力σtm","=","αc*Ec*h*Tg*Bx/2",,

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"=","2.071296",,

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,"温度疲劳应力系数kt","=","(fr/σtm)*(a*(σtm/fr)c-b)",,

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"=","0.492657634420501",,

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,"温度疲劳应力σtr","=","kt*σtm",,

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"=","1.02043978754465",,

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"四","极限状态计算",,

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, ,"Rr*(σpr+σtr)","=","4.66079843243448",,

, "结论","综合疲劳应力小于面层砼弯拉标准强度值,能够满足使用要求",,

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, "路面计算书(C-1-2型)",,

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,"项目名称:东安至冷水滩公路",,

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, "项目概述及路面结构说明","东冷路属平微二级公路,路面宽为9m,土路肩(一侧)宽1.5m(其中K0+000-K9+208为山岭重丘二级公路,路面宽7.5m,土路肩(一侧)宽为0.5m);

自然区划为Ⅵ6区,项目沿线石料水泥丰富,故推荐采用水泥砼路面结构,设计使用年限为30年.交通分析据工可其设计使用年限内标准轴载作用次数为4287985次.路面结构面层采用24cm普通砼,基层采用20cm5%水泥稳定碎石,垫层为20cm级配碎石.面板尺寸为长5m,宽4.5m,纵缝为设拉杆平缝,横缝为设传力杆缩缝,结构图见《路面结构图》中"C-1-2"型.本结构适用于路基较潮湿路段.",,

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, "一","计算路基基顶当量回弹模量及砼面层相对刚度半径输入数据",,

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, "1","普通砼面层弯拉弹性模量Ec(MPa)","=","31000",,

, "2","面层厚度h(m)","=","0.240000152587891",,

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"3","基层材料回弹模量E1(MPa)","=","1300",,

, "4","基层厚度h1(m)","=","0.200000152587891",,

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"5","底基层材料回弹模量E2(MPa)","=","200",,

, "6","底基层厚度h2(m)","=","0.200000152587891",,

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"7","土基回弹模量E0(MPa)","=","30",,

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"二","计算荷载疲劳应力输入数据",,

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, "1","接缝传荷能力的应力折减系数kr","=","0.900000610351563",,

, "2","综合系数kc","=","1.20000061035156",,

, "3","设计基准期内标准轴载累计作用次数Ne(次)","=","4287985",,

, "4","计算荷载疲劳应力系数v","=","0.057",,

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"三","计算温度疲劳应力输入数据",,

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, "1","温度梯度值Tg(°C/m)","=","92",,

, "2","板长L(m)","=","5","L/r","=","6.6314417211242" "3","由图B.2.2根据砼面板厚h及L/r查得温度应力系数Bx","=","0.640000610351563",,

, "4","面层砼弯拉强度标准值fr(MPa)","=","5",,

, "5","回归系数a","=","0.841",,

, "6","回归系数b","=","0.058",,

, "7","回归系数c","=","1.323",,

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"四","计算极限状态输入数据",,

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, "1","可靠度系数Rr","=","1.13000061035156",,

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, "一","新建公路的基顶当量回弹模量及面层相对刚度半径计算",,

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, ,"Ex","=","(h12*E1+h22*E2)/(h12+h12)",,

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"=","750",,

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,"Dx","=","(E1*h13+E2*h23)/12+((h1+h1)2/4)*(1/(E1*h1)+1/(E2*h2))-1",,

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"=","2.38666666666667",,

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,"hx","=","(12*Dx/Ex)^(1/3)",,

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"=","0.336747140627152",,

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,"a","=","6.22*(1-1.51*(Ex/E0)-0.45)",,

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"=","4.01354879254574",,

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,"b","=","1-1.44*(Ex/E0)-0.45",,

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"=","0.754814102314014",,