【橋梁抗裂性驗(yàn)算計(jì)算過程案例】2600字

第第橋梁抗裂性驗(yàn)算計(jì)算過程案例綜述目錄TOC\o"1-3"\h\u1103橋梁抗裂性驗(yàn)算計(jì)算過程案例綜述 156121.1作用短期效應(yīng)組合作用下的正截面抗裂驗(yàn)算 1136181.1.1預(yù)加力產(chǎn)生的構(gòu)件抗裂驗(yàn)算邊緣的混凝土預(yù)壓應(yīng)力的計(jì)算 1172122由荷載產(chǎn)生的構(gòu)件抗裂驗(yàn)算邊緣混凝土的法向拉應(yīng)力的計(jì)算 1238041.1.3正截面混凝土抗裂驗(yàn)算 1281121.2作用短期效應(yīng)組合作用下的斜截面抗裂驗(yàn)算 2256091.2.1主應(yīng)力計(jì)算 2323701.2.2主拉應(yīng)力的限制值 247161.3使用階段正截面抗裂驗(yàn)算 3239511.4使用階段斜截面抗裂驗(yàn)算 853441.4使用階段斜截面抗裂驗(yàn)算 101.1作用短期效應(yīng)組合作用下的正截面抗裂驗(yàn)算1.1.1預(yù)加力產(chǎn)生的構(gòu)件抗裂驗(yàn)算邊緣的混凝土預(yù)壓應(yīng)力的計(jì)算跨中截面：=6116.23KN，=1359.7mm=24.76MPa9.1.1.1.2由荷載產(chǎn)生的構(gòu)件抗裂驗(yàn)算邊緣混凝土的法向拉應(yīng)力的計(jì)算2由荷載產(chǎn)生的構(gòu)件抗裂驗(yàn)算邊緣混凝土的法向拉應(yīng)力的計(jì)算=22.22MPa1.1.3正截面混凝土抗裂驗(yàn)算由以上計(jì)算知=-2.54MPa（壓）， =19.91MPa=19.91-24.76=-4.85MPa﹤0構(gòu)件滿足要求。1.2作用短期效應(yīng)組合作用下的斜截面抗裂驗(yàn)算1.2.1主應(yīng)力計(jì)算（1）剪應(yīng)力==0.6MPa（2）正應(yīng)力==1.2MPa（3）主拉應(yīng)力==-0.05Mp1.2.2主拉應(yīng)力的限制值作用短期效應(yīng)組合下抗裂驗(yàn)算的混凝土的主拉應(yīng)力限值為：=0.7×2.65=1.86MPa從表中可以看出，以上主拉應(yīng)力均符合要求，所以L/4截面滿足作用短期效應(yīng)組合作用下的斜截面抗裂驗(yàn)算要求。表1.1L/4截面抗裂驗(yàn)算主拉應(yīng)力計(jì)算表計(jì)算點(diǎn)位置面積矩（mm3）剪應(yīng)力（MPa）正應(yīng)力（MPa）主應(yīng)力（MPa）第一階段凈截面第二階段換算截面-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使用階段正截面抗裂驗(yàn)算表1.2使用階段正截面抗裂驗(yàn)算表單元位置組合名稱短/長類型驗(yàn)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]頻遇10短期FX-MAXOK1.62256.61961.62256.61961.62256.61961.622501J[2]頻遇10短期FX-MINOK1.11597.43321.11597.43321.11597.43321.115902I[2]頻遇10短期FX-MINOK1.11637.43361.11637.43361.11637.43361.116302J[3]頻遇10短期FX-MINOK1.17917.37681.17917.37681.17917.37681.179103I[3]頻遇10短期FX-MINOK1.1797.37671.1797.37671.1797.37671.17903J[4]頻遇10短期FX-MINOK1.2237.3521.2237.3521.2237.3521.22304I[4]頻遇10短期FX-MINOK1.22567.35131.22567.35131.22567.35131.225604J[5]頻遇10短期FX-MINOK1.30097.47541.30097.47541.30097.47541.300905I[5]頻遇10短期FX-MINOK1.30237.47541.30237.47541.30237.47541.302305J[6]頻遇10短期FX-MINOK1.36677.64481.36677.64481.36677.64481.366706I[6]頻遇10短期FX-MINOK1.36837.64471.36837.64471.36837.64471.368306J[7]頻遇10短期FX-MINOK1.42527.85781.42527.85781.42527.85781.425207I[7]頻遇10短期FX-MINOK1.4277.85741.4277.85741.4277.85741.42707J[8]頻遇10短期FX-MINOK1.47851.14041.47851.14041.47851.14041.478508I[8]頻遇10短期FX-MINOK1.48041.13991.48041.13991.48041.13991.480408J[9]頻遇10短期FX-MINOK1.54931.4391.54931.4391.54931.4391.549309I[9]頻遇10短期FX-MINOK1.55141.43851.55141.43851.55141.43851.551409J[10]頻遇10短期FX-MINOK1.64181.74671.64181.74671.64181.74671.6418010I[10]頻遇10短期FX-MINOK1.64421.74621.64421.74621.64421.74621.6442010J[11]頻遇10短期FX-MINOK1.7569.04961.7569.04961.7569.04961.756011I[11]頻遇10短期FX-MINOK1.75879.04891.75879.04891.75879.04891.7587011J[12]頻遇10短期FX-MINOK1.86869.40551.86869.40551.86869.40551.8686012I[12]頻遇10短期FX-MINOK1.87179.40441.87179.40441.87179.40441.8717012J[13]頻遇10短期FX-MINOK1.97329.84861.97329.84861.97329.84861.9732013I[13]頻遇10短期FX-MINOK1.97689.84681.97689.84681.97689.84681.9768013J[14]頻遇10短期FX-MINOK2.068910.40042.068910.40042.068910.40042.0689014I[14]頻遇10短期FX-MINOK2.07310.39762.07310.39762.07310.39762.073014J[15]頻遇10短期FX-MINOK2.15311.09332.15311.09332.15311.09332.153015I[15]頻遇10短期FX-MINOK2.157911.08892.157911.08892.157911.08892.1579015J[16]頻遇10短期FX-MINOK2.22311.96882.22311.96882.22311.96882.223025J[26]頻遇10短期FX-MINOK2.566811.34232.566811.34232.566811.34232.566801.4使用階段斜截面抗裂驗(yàn)算表1.3使用階段斜截面抗裂驗(yàn)算表單元位置組合名稱短/長類型驗(yàn)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]頻遇10短期FX-MAXOK1.62256.61961.62256.61961.62256.61961.622501J[2]頻遇10短期FX-MINOK1.11597.43321.11597.43321.11597.43321.115902I[2]頻遇10短期FX-MINOK1.11637.43361.11637.43361.11637.43361.116302J[3]頻遇10短期FX-MINOK1.17917.37681.17917.37681.17917.37681.179103I[3]頻遇10短期FX-MINOK1.1797.37671.1797.37671.1797.37671.17903J[4]頻遇10短期FX-MINOK1.2237.3521.2237.3521.2237.3521.22304I[4]頻遇10短期FX-MINOK1.22567.35131.22567.35131.22567.35131.225604J[5]頻遇10短期FX-MINOK1.30097.47541.30097.47541.30097.47541.300905I[5]頻遇10短期FX-MINOK1.30237.47541.30237.47541.30237.47541.302305J[6]頻遇10短期FX-MINOK1.36677.64481.36677.64481.36677.64481.366706I[6]頻遇10短期FX-MINOK1.36837.64471.36837.64471.36837.64471.368306J[7]頻遇10短期FX-MINOK1.42527.85781.42527.85781.42527.85781.425207I[7]頻遇10短期FX-MINOK1.4277.85741.4277.85741.4277.85741.42707J[8]頻遇10短期FX-MINOK1.47851.14041.47851.14041.47851.14041.478508I[8]頻遇10短期FX-MINOK1.48041.13991.48041.13991.48041.13991.480408J[9]頻遇10短期FX-MINOK1.54931.4391.54931.4391.54931.4391.549309I[9]頻遇10短期FX-MINOK1.55141.43851.55141.43851.55141.43851.551409J[10]頻遇10短期FX-MINOK1.64181.74671.64181.74671.64181.74671.6418010I[10]頻遇10短期FX-MINOK1.64421.74621.64421.74621.64421.74621.6442010J[11]頻遇10短期FX-MINOK1.7569.04961.7569.04961.7569.04961.756011I[11]頻遇10短期FX-MINOK1.75879.04891.75879.04891.75879.04891.7587011J[12]頻遇10短期FX-MINOK1.86869.40551.86869.40551.86869.40551.8686012I[12]頻遇10短期FX-MINOK1.87179.40441.87179.40441.87179.40441.8717012J[13]頻遇10短期FX-MINOK1.97329.84861.97329.84861.97329.84861.9732013I[13]頻遇10短期FX-MINOK1.97689.84681.97689.84681.97689.84681.9768013J[14]頻遇10短期FX-MINOK2.068910.40042.068910.40042.068910.40042.0689014I[14]頻遇10短期FX-MINOK2.07310.39762.07310.39762.07310.39762.073014J[15]頻遇10短期FX-MINOK2.15311.09332.15311.09332.15311.09332.153015I[15]頻遇10短期FX-MINOK2.157911.08892.157911.08892.157911.08892.1579015J[16]頻遇10短期FX-MINOK2.22311.96882.22311.96882.22311.96882.223025J[26]頻遇10短期FX-MINOK2.566811.34232.566811.34232.566811.34232.566801.4使用階段斜截面抗裂驗(yàn)算表1.3使用階段斜截面抗裂驗(yàn)算表單元位置驗(yàn)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-