【桥梁抗裂性验算计算过程案例】2600字

第第桥梁抗裂性验算计算过程案例综述目录TOC\o"1-3"\h\u1103桥梁抗裂性验算计算过程案例综述 156121.1作用短期效应组合作用下的正截面抗裂验算 1136181.1.1预加力产生的构件抗裂验算边缘的混凝土预压应力的计算 1172122由荷载产生的构件抗裂验算边缘混凝土的法向拉应力的计算 1238041.1.3正截面混凝土抗裂验算 1281121.2作用短期效应组合作用下的斜截面抗裂验算 2256091.2.1主应力计算 2323701.2.2主拉应力的限制值 247161.3使用阶段正截面抗裂验算 3239511.4使用阶段斜截面抗裂验算 853441.4使用阶段斜截面抗裂验算 101.1作用短期效应组合作用下的正截面抗裂验算1.1.1预加力产生的构件抗裂验算边缘的混凝土预压应力的计算跨中截面：=6116.23KN，=1359.7mm=24.76MPa9.1.1.1.2由荷载产生的构件抗裂验算边缘混凝土的法向拉应力的计算2由荷载产生的构件抗裂验算边缘混凝土的法向拉应力的计算=22.22MPa1.1.3正截面混凝土抗裂验算由以上计算知=-2.54MPa（压）， =19.91MPa=19.91-24.76=-4.85MPa﹤0构件满足要求。1.2作用短期效应组合作用下的斜截面抗裂验算1.2.1主应力计算（1）剪应力==0.6MPa（2）正应力==1.2MPa（3）主拉应力==-0.05Mp1.2.2主拉应力的限制值作用短期效应组合下抗裂验算的混凝土的主拉应力限值为：=0.7×2.65=1.86MPa从表中可以看出，以上主拉应力均符合要求，所以L/4截面满足作用短期效应组合作用下的斜截面抗裂验算要求。表1.1L/4截面抗裂验算主拉应力计算表计算点位置面积矩（mm3）剪应力（MPa）正应力（MPa）主应力（MPa）第一阶段净截面第二阶段换算截面-3.029×1083.121×1080.661.17-0.05-3.510×1083.651×1080.889.36-0.08-2.394×1082.594×1080.4011.05-0.011.3使用阶段正截面抗裂验算表1.2使用阶段正截面抗裂验算表单元位置组合名称短/长类型验算Sig_T（N/mm^2）Sig_B（N/mm^2）Sig_TL（N/mm^2）Sig_BL（N/mm^2）Sig_TR（N/mm^2）Sig_BR（N/mm^2）Sig_MAX（N/mm^2）Sig_ALW（N/mm^2）1I[1]频遇10短期FX-MAXOK1.62256.61961.62256.61961.62256.61961.622501J[2]频遇10短期FX-MINOK1.11597.43321.11597.43321.11597.43321.115902I[2]频遇10短期FX-MINOK1.11637.43361.11637.43361.11637.43361.116302J[3]频遇10短期FX-MINOK1.17917.37681.17917.37681.17917.37681.179103I[3]频遇10短期FX-MINOK1.1797.37671.1797.37671.1797.37671.17903J[4]频遇10短期FX-MINOK1.2237.3521.2237.3521.2237.3521.22304I[4]频遇10短期FX-MINOK1.22567.35131.22567.35131.22567.35131.225604J[5]频遇10短期FX-MINOK1.30097.47541.30097.47541.30097.47541.300905I[5]频遇10短期FX-MINOK1.30237.47541.30237.47541.30237.47541.302305J[6]频遇10短期FX-MINOK1.36677.64481.36677.64481.36677.64481.366706I[6]频遇10短期FX-MINOK1.36837.64471.36837.64471.36837.64471.368306J[7]频遇10短期FX-MINOK1.42527.85781.42527.85781.42527.85781.425207I[7]频遇10短期FX-MINOK1.4277.85741.4277.85741.4277.85741.42707J[8]频遇10短期FX-MINOK1.47851.14041.47851.14041.47851.14041.478508I[8]频遇10短期FX-MINOK1.48041.13991.48041.13991.48041.13991.480408J[9]频遇10短期FX-MINOK1.54931.4391.54931.4391.54931.4391.549309I[9]频遇10短期FX-MINOK1.55141.43851.55141.43851.55141.43851.551409J[10]频遇10短期FX-MINOK1.64181.74671.64181.74671.64181.74671.6418010I[10]频遇10短期FX-MINOK1.64421.74621.64421.74621.64421.74621.6442010J[11]频遇10短期FX-MINOK1.7569.04961.7569.04961.7569.04961.756011I[11]频遇10短期FX-MINOK1.75879.04891.75879.04891.75879.04891.7587011J[12]频遇10短期FX-MINOK1.86869.40551.86869.40551.86869.40551.8686012I[12]频遇10短期FX-MINOK1.87179.40441.87179.40441.87179.40441.8717012J[13]频遇10短期FX-MINOK1.97329.84861.97329.84861.97329.84861.9732013I[13]频遇10短期FX-MINOK1.97689.84681.97689.84681.97689.84681.9768013J[14]频遇10短期FX-MINOK2.068910.40042.068910.40042.068910.40042.0689014I[14]频遇10短期FX-MINOK2.07310.39762.07310.39762.07310.39762.073014J[15]频遇10短期FX-MINOK2.15311.09332.15311.09332.15311.09332.153015I[15]频遇10短期FX-MINOK2.157911.08892.157911.08892.157911.08892.1579015J[16]频遇10短期FX-MINOK2.22311.96882.22311.96882.22311.96882.223025J[26]频遇10短期FX-MINOK2.566811.34232.566811.34232.566811.34232.566801.4使用阶段斜截面抗裂验算表1.3使用阶段斜截面抗裂验算表单元位置组合名称短/长类型验算Sig_T（N/mm^2）Sig_B（N/mm^2）Sig_TL（N/mm^2）Sig_BL（N/mm^2）Sig_TR（N/mm^2）Sig_BR（N/mm^2）Sig_MAX（N/mm^2）Sig_ALW（N/mm^2）1I[1]频遇10短期FX-MAXOK1.62256.61961.62256.61961.62256.61961.622501J[2]频遇10短期FX-MINOK1.11597.43321.11597.43321.11597.43321.115902I[2]频遇10短期FX-MINOK1.11637.43361.11637.43361.11637.43361.116302J[3]频遇10短期FX-MINOK1.17917.37681.17917.37681.17917.37681.179103I[3]频遇10短期FX-MINOK1.1797.37671.1797.37671.1797.37671.17903J[4]频遇10短期FX-MINOK1.2237.3521.2237.3521.2237.3521.22304I[4]频遇10短期FX-MINOK1.22567.35131.22567.35131.22567.35131.225604J[5]频遇10短期FX-MINOK1.30097.47541.30097.47541.30097.47541.300905I[5]频遇10短期FX-MINOK1.30237.47541.30237.47541.30237.47541.302305J[6]频遇10短期FX-MINOK1.36677.64481.36677.64481.36677.64481.366706I[6]频遇10短期FX-MINOK1.36837.64471.36837.64471.36837.64471.368306J[7]频遇10短期FX-MINOK1.42527.85781.42527.85781.42527.85781.425207I[7]频遇10短期FX-MINOK1.4277.85741.4277.85741.4277.85741.42707J[8]频遇10短期FX-MINOK1.47851.14041.47851.14041.47851.14041.478508I[8]频遇10短期FX-MINOK1.48041.13991.48041.13991.48041.13991.480408J[9]频遇10短期FX-MINOK1.54931.4391.54931.4391.54931.4391.549309I[9]频遇10短期FX-MINOK1.55141.43851.55141.43851.55141.43851.551409J[10]频遇10短期FX-MINOK1.64181.74671.64181.74671.64181.74671.6418010I[10]频遇10短期FX-MINOK1.64421.74621.64421.74621.64421.74621.6442010J[11]频遇10短期FX-MINOK1.7569.04961.7569.04961.7569.04961.756011I[11]频遇10短期FX-MINOK1.75879.04891.75879.04891.75879.04891.7587011J[12]频遇10短期FX-MINOK1.86869.40551.86869.40551.86869.40551.8686012I[12]频遇10短期FX-MINOK1.87179.40441.87179.40441.87179.40441.8717012J[13]频遇10短期FX-MINOK1.97329.84861.97329.84861.97329.84861.9732013I[13]频遇10短期FX-MINOK1.97689.84681.97689.84681.97689.84681.9768013J[14]频遇10短期FX-MINOK2.068910.40042.068910.40042.068910.40042.0689014I[14]频遇10短期FX-MINOK2.07310.39762.07310.39762.07310.39762.073014J[15]频遇10短期FX-MINOK2.15311.09332.15311.09332.15311.09332.153015I[15]频遇10短期FX-MINOK2.157911.08892.157911.08892.157911.08892.1579015J[16]频遇10短期FX-MINOK2.22311.96882.22311.96882.22311.96882.223025J[26]频遇10短期FX-MINOK2.566811.34232.566811.34232.566811.34232.566801.4使用阶段斜截面抗裂验算表1.3使用阶段斜截面抗裂验算表单元位置验算Sig_P1（N/mm^2）Sig_P2（N/mm^2）Sig_P3（N/mm^2）Sig_P4（N/mm^2）Sig_P5（N/mm^2）Sig_P6（N/mm^2）Sig_P7（N/mm^2）Sig_P8（N/mm^2）Sig_P9（N/mm^2）Sig_P10（N/mm^2）Sig_MAX（N/mm^2）Sig_AP（N/mm^2）1I[1]OK0000-0.2571-0.2571-0.237-0.237-0.1559-0.1559-0.2571-1.591J[2]OK0000-0.6259-0.6259-0.5532-0.5532-0.3639-0.3639-0.6259-1.592I[2]OK0000-0.1792-0.1792-0.1408-0.1408-0.0872-0.0872-0.1792-1.592J[3]OK0000-0.1509-0.1509-0.1176-0.1176-0.0727-0.0727-0.1509-1.593I[3]OK0000-0.1509-0.1509-0.1176-0.1176-0.0727-0.0727-0.1509-1.593J[4]OK0000-0.1282-0.1282-0.0987-0.0987-0.0608-0.0608-0.1282-1.594I[4]OK0000-0.1114-0.1114-0.0815-0.0815-0.0519-0.0519-0.1114-1.594J[5]OK0000-0.1008-0.1008-0.0726-0.0726-0.0062-0.0062-0.1008-1.595I[5]OK0000-0.0956-0.0956-0.072-0.072-0.042-0.042-0.0956-1.595J[6]OK0000-0.0879-0.0879-0.0649-0.0649-0.0049-0.0049-0.0879-1.596I[6]OK0000-0.0821-0.0821-0.0603-0.0603-0.0333-0.0333-0.0821-1.596J[7]OK0000-0.0777-0.0777-0.0559-0.0559-0.004-0.004-0.0777-1.597I[7]OK0000-0.0711-0.0711-0.0509-0.0509-0.0266-0.0266-0.0711-1.597J[8]OK0000-0.0894-0.0894-0.0629-0.0629-0.0042-0.0042-0.0894-1.598I[8]OK0000-0.0809-0.0809-0.0566-0.0566-0.0279-0.0279-0.0809-1.598J[9]OK0000-0.1085-0.1085-0.0752-0.0752-0.0047-0.0047-0.1085-1.599I[9]OK0000-0.0974-0.0974-0.0671-0.0671-0.0311-0.0311-0.0974-1.599J[10]OK0000-0.1306-0.1306-0.0897-0.0897-0.0053-0.0053-0.1306-1.5910I[10]OK0000-0.1161-0.1161-0.0793-0.0793-0.0347-0.0347-0.1161-1.5910J[11]OK0000-0.1283-0.1283-0.0875-0.0875-0.0049-0.0049-0.1283-1.5911I[11]OK0000-0.1109-0.1109-0.0752-0.0752-0.0309-0.0309-0.1109-1.5911J[12]OK0000-0.1087-0.1087-0.0733-0.0733-0.0048-0.0048-0.1087-1.59

12I[12]OK0000-0.0893-0.0893-0.0599-0.0599-0.0229-0.0229-0.0893-1.5912J[13]OK0000-0.0866-0.0866-0.0576-0.0576-0.0048-0.0048-0.0866-1.5913I[13]OK0000-0.0656-0.0656-0.0434-0.0434-0.0154-0.0154-0.0656-1.5913J[14]OK0000-0.0632-0.0632-0.0413-0.0413-0.0046-0.0046-0.0632-1.5914I[14]OK0000-0.0738-0.0738-0.0727-0.0727-0.0319-0.0319-0.0738-1.5914J[15]OK0000-0.088-0.088-0.0854-0.0854-0.0191-0.0191-0.088-1.5915I[15]OK0000-0.1184-0.1184-0.1152-0.1152-0.0472-0.0472-0.1184-1.5915J[16]OK0000-0.141-0.141-0.1344-0.1344-0.0506-0.0506-0.141-1.5916I[16]OK0000-0.292-0.292-0.1906-0.1906-0.0517-0.0517-0.292-1.5916J[17]OK0000-0.2774-0.2774-0.1811-0.1811-0.0492-0.0492-0.2774-1.5917I[17]OK0000-0.2774-0.2774-0.1811-0.1811-0.0492-0.0492-0.2774-1.5917J[18]OK0000-0.2633-0.2633-0.172-0.172-0.0468-0.0468-0.2633-1.5918I[18]OK0000-0.2633-0.2633-0.172-0.172-0.0468-0.0468-0.2633-1.5918J[19]OK0000-0.2451-0.2451-0.1602-0.1602-0.0437-0.0437-0.2451-1.5919I[19]OK0000-0.2451-0.2451-0.1602-0.1602-0.0437-0.0437-