×35m先簡(jiǎn)支后連續(xù)T梁結(jié)構(gòu)的上部結(jié)構(gòu)計(jì)算案例目錄TOC\o"1-3"\h\u133873×35m先簡(jiǎn)支后連續(xù)T梁結(jié)構(gòu)的上部結(jié)構(gòu)計(jì)算案例 140691.1工程概況 1249301.2主梁作用效應(yīng)計(jì)算 1186201.2.1永久作用效應(yīng)計(jì)算 195161.2.2可變作用效應(yīng)計(jì)算 398751.3運(yùn)梁過(guò)程分析 3132251.3.1荷載組合 361971.3.2計(jì)算結(jié)果 4184621.4施工過(guò)程分析 11237851.4.1施工順序 11146901.4.2計(jì)算原則 11312591.5T梁施工階段計(jì)算 12273811.5.2荷載工況及荷載組合 13280811.6T梁使用過(guò)程計(jì)算 381.1工程概況本橋?yàn)?×35m先簡(jiǎn)支后連續(xù)T梁結(jié)構(gòu)，橫向上通過(guò)橫隔板及橫梁將7片梁聯(lián)系成整體。T梁采用C50混凝土，梁高均為2.15m?？v梁內(nèi)設(shè)置預(yù)應(yīng)力鋼絞線，鋼絞線規(guī)格為（φ14.24fpk=1860）15-8、15-9鋼絞線。T梁施工采用預(yù)制拼裝的方式施工。T梁預(yù)制完成后通過(guò)運(yùn)輸、吊裝安裝至橋墩上，然后澆筑現(xiàn)澆段及橫向聯(lián)系。因此，T梁計(jì)算應(yīng)考慮運(yùn)梁過(guò)程和施工過(guò)程兩個(gè)個(gè)主要工況。1.2主梁作用效應(yīng)計(jì)算1.2.1永久作用效應(yīng)計(jì)算（1）永久作用集度1）預(yù)制梁自重?跨中截面段主梁的自重：馬蹄抬高與腹板寬度段梁的自重（長(zhǎng)7.25m)：支點(diǎn)段梁的自重：?邊主梁的橫隔梁：中橫隔梁體積：端橫隔梁體積：故半跨內(nèi)橫隔梁重力為：?預(yù)制梁永久作用集度：二期永久作用現(xiàn)澆T梁翼板集度：側(cè)梁的現(xiàn)澆部分的膜片：中間橫梁的體積（現(xiàn)澆部分）：（m3）一端梁的體積（現(xiàn)澆部分）：故：鋪裝：8cm混凝土鋪裝：9cm瀝青鋪裝：若將橋面鋪裝均攤給7片主梁，則：?經(jīng)計(jì)算，兩側(cè)防撞護(hù)欄分別為4.99KN/m。如果兩側(cè)防撞柵欄的載荷均勻地分布在7個(gè)主梁上，則：?邊梁二期永久作用集度：1.2.2可變作用效應(yīng)計(jì)算（1）影響因子和車道減少因子：根據(jù)“橋梁法規(guī)”第4.3.2條，必須首先計(jì)算結(jié)構(gòu)的頻率，因?yàn)榻Y(jié)構(gòu)的沖擊系數(shù)與結(jié)構(gòu)的基本頻率有關(guān)?？梢酝ㄟ^(guò)以下公式估算簡(jiǎn)單支撐的T型梁的頻率：其中：根據(jù)本橋的基頻，可計(jì)算出汽車荷載的沖擊系數(shù)為：（2）車道荷載值：根據(jù)《橋梁規(guī)程》第4.3.1條的規(guī)定，高速公路I類車道荷載的均勻荷載的標(biāo)準(zhǔn)值為q=10.5KN/m。根據(jù)“橋梁法規(guī)”，當(dāng)跨度為35米，P=330KN時(shí)，計(jì)算剪力值：1.3運(yùn)梁過(guò)程分析1.3.1荷載組合根據(jù)《公路橋涵設(shè)計(jì)通用規(guī)范》JTGD60-2015，T梁在運(yùn)輸時(shí)，構(gòu)件重力應(yīng)乘以動(dòng)力系數(shù)1.2（對(duì)結(jié)構(gòu)不利時(shí)）或0.85（對(duì)結(jié)構(gòu)有利時(shí)）。本聯(lián)橋中，單片T梁重量按照214t計(jì)算，運(yùn)梁車重量按照20t計(jì)算。運(yùn)梁車載重平均分配到單側(cè)輪載上。分別計(jì)算承重梁和被運(yùn)梁的承載能力。計(jì)算承重梁的荷載組合：1.2×自重+載重計(jì)算被運(yùn)梁的荷載組合：0.85×自重+1.0×預(yù)應(yīng)力1.3.2計(jì)算結(jié)果（1）承重梁計(jì)算運(yùn)輸過(guò)程中，承重T梁在運(yùn)梁車載重及自身重力作用下，T梁的彎矩圖如下：圖1承重梁彎矩圖單元荷載階段步驟位置軸向(kN)剪力-y(kN)剪力-z(kN)扭矩(kN*m)彎矩-y(kN*m)彎矩-z(kN*m)101恒荷載預(yù)制架梁002(最后)I[460]-0.0200000101恒荷載預(yù)制架梁002(最后)J[461]-0.02021.350-5.760102恒荷載預(yù)制架梁002(最后)I[461]0.760-478.470-5.870102恒荷載預(yù)制架梁002(最后)J[462]0.760-400.990856.010103恒荷載預(yù)制架梁002(最后)I[462]-0.20-400.990856.010103恒荷載預(yù)制架梁002(最后)J[463]0.070-312.101743.230104恒荷載預(yù)制架梁002(最后)I[463]-3.720-312.0701743.230104恒荷載預(yù)制架梁002(最后)J[464]-2.810-253.3202334.280105恒荷載預(yù)制架梁002(最后)I[464]0.260-253.3302334.280105恒荷載預(yù)制架梁002(最后)J[465]0.260-182.6402966.440106恒荷載預(yù)制架梁002(最后)I[465]-0.050-182.6402966.440106恒荷載預(yù)制架梁002(最后)J[466]-0.050-121.703346.860107恒荷載預(yù)制架梁002(最后)I[466]-0.050-121.703346.860107恒荷載預(yù)制架梁002(最后)J[467]-0.050-60.7503574.920108恒荷載預(yù)制架梁002(最后)I[467]-0.050-60.7503574.920108恒荷載預(yù)制架梁002(最后)J[468]-0.0500.1903650.620109恒荷載預(yù)制架梁002(最后)I[468]-0.0500.1903650.620109恒荷載預(yù)制架梁002(最后)J[469]-0.05061.1403573.960110恒荷載預(yù)制架梁002(最后)I[469]-0.05061.1403573.960110恒荷載預(yù)制架梁002(最后)J[470]-0.050122.0803344.940111恒荷載預(yù)制架梁002(最后)I[470]-0.050122.0803344.940111恒荷載預(yù)制架梁002(最后)J[471]-0.050182.902963.710112恒荷載預(yù)制架梁002(最后)I[471]0.250182.902963.710112恒荷載預(yù)制架梁002(最后)J[472]0.250253.302331.210113恒荷載預(yù)制架梁002(最后)I[472]-2.730253.2902331.210113恒荷載預(yù)制架梁002(最后)J[473]-3.630311.8301740.450114恒荷載預(yù)制架梁002(最后)I[473]0.070311.8601740.450114恒荷載預(yù)制架梁002(最后)J[474]-0.190400.380854.290115恒荷載預(yù)制架梁002(最后)I[474]0.760400.380854.290115恒荷載預(yù)制架梁002(最后)J[475]0.760477.170-1.310116恒荷載預(yù)制架梁002(最后)I[475]-0.010-9.850-1.230116恒荷載預(yù)制架梁002(最后)J[476]-0.0100000117恒荷載預(yù)制架梁002(最后)I[476]000000117恒荷載預(yù)制架梁002(最后)J[721]000000118恒荷載預(yù)制架梁002(最后)I[477]-0.0100000118恒荷載預(yù)制架梁002(最后)J[478]-0.0109.850-1.230119恒荷載預(yù)制架梁002(最后)I[478]-0.050-476.980-1.320119恒荷載預(yù)制架梁002(最后)J[479]-0.050-400.180853.920120恒荷載預(yù)制架梁002(最后)I[479]-0.650-400.180853.920120恒荷載預(yù)制架梁002(最后)J[480]-0.390-311.6601739.590121恒荷載預(yù)制架梁002(最后)I[480]-4.130-311.6401739.590121恒荷載預(yù)制架梁002(最后)J[481]-3.230-253.0902329.950122恒荷載預(yù)制架梁002(最后)I[481]-0.050-253.1102329.950122恒荷載預(yù)制架梁002(最后)J[482]-0.050-182.7102961.890123恒荷載預(yù)制架梁002(最后)I[482]-0.050-182.7102961.890123恒荷載預(yù)制架梁002(最后)J[483]-0.050-121.8903342.630124恒荷載預(yù)制架梁002(最后)I[483]-0.050-121.8903342.630124恒荷載預(yù)制架梁002(最后)J[484]-0.050-60.9403571.170125恒荷載預(yù)制架梁002(最后)I[484]-0.050-60.9403571.170125恒荷載預(yù)制架梁002(最后)J[485]-0.050003647.350126恒荷載預(yù)制架梁002(最后)I[485]-0.050003647.350126恒荷載預(yù)制架梁002(最后)J[486]-0.05060.9403571.170127恒荷載預(yù)制架梁002(最后)I[486]-0.05060.9403571.170127恒荷載預(yù)制架梁002(最后)J[487]-0.050121.8903342.630128恒荷載預(yù)制架梁002(最后)I[487]-0.050121.8903342.630128恒荷載預(yù)制架梁002(最后)J[488]-0.050182.7102961.890129恒荷載預(yù)制架梁002(最后)I[488]-0.050182.7102961.890129恒荷載預(yù)制架梁002(最后)J[489]-0.050253.1102329.950130恒荷載預(yù)制架梁002(最后)I[489]-3.240253.0902329.950130恒荷載預(yù)制架梁002(最后)J[490]-4.140311.6401739.590131恒荷載預(yù)制架梁002(最后)I[490]-0.380311.6601739.590131恒荷載預(yù)制架梁002(最后)J[491]-0.640400.180853.920132恒荷載預(yù)制架梁002(最后)I[491]-0.050400.180853.920132恒荷載預(yù)制架梁002(最后)J[492]-0.050476.980-1.320133恒荷載預(yù)制架梁002(最后)I[492]-0.010-9.850-1.230133恒荷載預(yù)制架梁002(最后)J[493]-0.0100000134恒荷載預(yù)制架梁002(最后)I[493]000000134恒荷載預(yù)制架梁002(最后)J[726]000000135恒荷載預(yù)制架梁002(最后)I[494]000000135恒荷載預(yù)制架梁002(最后)J[495]009.850-1.230136恒荷載預(yù)制架梁002(最后)I[495]0.760-477.170-1.310136恒荷載預(yù)制架梁002(最后)J[496]0.760-400.380854.30137恒荷載預(yù)制架梁002(最后)I[496]-0.190-400.380854.30137恒荷載預(yù)制架梁002(最后)J[497]0.070-311.8601740.450138恒荷載預(yù)制架梁002(最后)I[497]-3.570-311.8401740.450138恒荷載預(yù)制架梁002(最后)J[498]-2.670-253.2902331.220139恒荷載預(yù)制架梁002(最后)I[498]0.260-253.302331.220139恒荷載預(yù)制架梁002(最后)J[499]0.260-182.902963.720140恒荷載預(yù)制架梁002(最后)I[499]-0.050-182.902963.720140恒荷載預(yù)制架梁002(最后)J[500]-0.050-122.0803344.940141恒荷載預(yù)制架梁002(最后)I[500]-0.050-122.0803344.940141恒荷載預(yù)制架梁002(最后)J[501]-0.050-61.1403573.970142恒荷載預(yù)制架梁002(最后)I[501]-0.050-61.1403573.970142恒荷載預(yù)制架梁002(最后)J[502]-0.050-0.1903650.630143恒荷載預(yù)制架梁002(最后)I[502]-0.050-0.1903650.630143恒荷載預(yù)制架梁002(最后)J[503]-0.05060.7503574.930144恒荷載預(yù)制架梁002(最后)I[503]-0.05060.7503574.930144恒荷載預(yù)制架梁002(最后)J[504]-0.050121.6903346.880145恒荷載預(yù)制架梁002(最后)I[504]-0.050121.6903346.880145恒荷載預(yù)制架梁002(最后)J[505]-0.050182.6402966.460146恒荷載預(yù)制架梁002(最后)I[505]0.250182.6402966.460146恒荷載預(yù)制架梁002(最后)J[506]0.250253.3302334.30147恒荷載預(yù)制架梁002(最后)I[506]-2.750253.3202334.30147恒荷載預(yù)制架梁002(最后)J[507]-3.650312.0701743.250148恒荷載預(yù)制架梁002(最后)I[507]0.070312.101743.250148恒荷載預(yù)制架梁002(最后)J[508]-0.190400.990856.030149恒荷載預(yù)制架梁002(最后)I[508]0.760400.990856.030149恒荷載預(yù)制架梁002(最后)J[509]0.760478.470-5.850150恒荷載預(yù)制架梁002(最后)I[509]-0.040-21.350-5.760150恒荷載預(yù)制架梁002(最后)J[510]-0.0400000經(jīng)計(jì)算，當(dāng)運(yùn)梁車單軸作用在T梁跨中的時(shí)候，T梁產(chǎn)生最大的彎矩，為15751kN·m。鋼束配置如下圖所示（T梁跨中）：圖2預(yù)制T梁截面截面受壓區(qū)高度：截面抗彎承載能力：承重梁上下截面的應(yīng)力如下圖所示。荷載組合為：1.2×自重+載重+鋼束圖3承重梁上緣正應(yīng)圖圖4承重梁下緣正應(yīng)圖經(jīng)計(jì)算，按照運(yùn)梁車布置，承重T梁上下緣均不出現(xiàn)拉應(yīng)力，截面抗彎承載能力滿足要求。運(yùn)梁車輪載應(yīng)作用在T梁腹板上。單側(cè)輪胎作用在T梁腹板上，對(duì)臨時(shí)支座的彎矩：T梁抵抗矩：因此，T梁橫向穩(wěn)定滿足要求。施工時(shí)應(yīng)將橋面梁板的縱向濕接縫的鋼筋及橫隔板的主筋進(jìn)行連接，使總體穩(wěn)定性更加安全可靠。本計(jì)算僅為一種型號(hào)的運(yùn)梁車運(yùn)輸工況，施工時(shí)應(yīng)按照實(shí)際運(yùn)梁車型號(hào)及荷載布置，結(jié)合施工圖紙及相關(guān)規(guī)范進(jìn)行復(fù)核計(jì)算。（2）被運(yùn)梁計(jì)算當(dāng)梁體放置在平板車上時(shí)，受到平板車向上的托舉作用，自重影響減弱，此時(shí)應(yīng)避免預(yù)應(yīng)力引起的反拱造成T梁損壞。計(jì)算結(jié)果如下所示。圖5被運(yùn)梁上緣正應(yīng)圖圖6被運(yùn)梁下緣正應(yīng)圖單元荷載階段步驟位置軸向剪力-y剪力-z彎矩(+y)彎矩(-y)彎矩(+z)彎矩(-z)Cb(min/max)Cb1(-y+z)Cb2(+y+z)Cb3(+y-z)Cb4(-y-z)101合計(jì)預(yù)制架梁002(最后)I[460]-1.20E-020.00E+00-1.72E-050.00E+000.00E+000.00E+001.33E-10-1.20E-02-1.20E-02-1.20E-02-1.20E-02-1.20E-02101合計(jì)預(yù)制架梁002(最后)J[461]-3.90E+030.00E+008.94E+020.00E+000.00E+004.65E+02-6.24E+02-4.52E+03-3.43E+03-3.43E+03-4.52E+03-4.52E+03102合計(jì)預(yù)制架梁002(最后)I[461]-3.90E+030.00E+003.44E+020.00E+000.00E+004.64E+02-6.23E+02-4.52E+03-3.43E+03-3.43E+03-4.52E+03-4.52E+03102合計(jì)預(yù)制架梁002(最后)J[462]-3.92E+030.00E+003.24E+020.00E+000.00E+001.25E+03-1.66E+03-5.58E+03-2.67E+03-2.67E+03-5.58E+03-5.58E+03103合計(jì)預(yù)制架梁002(最后)I[462]-3.92E+030.00E+003.43E+020.00E+000.00E+001.24E+03-1.66E+03-5.57E+03-2.67E+03-2.67E+03-5.57E+03-5.57E+03103合計(jì)預(yù)制架梁002(最后)J[463]-4.88E+030.00E+004.85E+020.00E+000.00E+002.50E+03-3.39E+03-8.27E+03-2.38E+03-2.38E+03-8.27E+03-8.27E+03104合計(jì)預(yù)制架梁002(最后)I[463]-4.86E+030.00E+006.02E+020.00E+000.00E+002.48E+03-3.35E+03-8.21E+03-2.38E+03-2.38E+03-8.21E+03-8.21E+03104合計(jì)預(yù)制架梁002(最后)J[464]-6.26E+030.00E+006.68E+020.00E+000.00E+003.64E+03-5.20E+03-1.15E+04-2.62E+03-2.62E+03-1.15E+04-1.15E+04105合計(jì)預(yù)制架梁002(最后)I[464]-6.25E+030.00E+004.01E+020.00E+000.00E+003.62E+03-5.18E+03-1.14E+04-2.63E+03-2.63E+03-1.14E+04-1.14E+04105合計(jì)預(yù)制架梁002(最后)J[465]-6.30E+030.00E+004.58E+010.00E+000.00E+004.20E+03-5.95E+03-1.22E+04-2.10E+03-2.10E+03-1.22E+04-1.22E+04106合計(jì)預(yù)制架梁002(最后)I[465]-6.30E+030.00E+004.58E+010.00E+000.00E+004.20E+03-5.95E+03-1.22E+04-2.10E+03-2.10E+03-1.22E+04-1.22E+04106合計(jì)預(yù)制架梁002(最后)J[466]-6.29E+030.00E+002.16E+020.00E+000.00E+004.33E+03-6.12E+03-1.24E+04-1.96E+03-1.96E+03-1.24E+04-1.24E+04107合計(jì)預(yù)制架梁002(最后)I[466]-6.29E+030.00E+002.16E+020.00E+000.00E+004.33E+03-6.12E+03-1.24E+04-1.96E+03-1.96E+03-1.24E+04-1.24E+04107合計(jì)預(yù)制架梁002(最后)J[467]-6.30E+030.00E+001.09E+020.00E+000.00E+004.61E+03-6.49E+03-1.28E+04-1.68E+03-1.68E+03-1.28E+04-1.28E+04108合計(jì)預(yù)制架梁002(最后)I[467]-6.30E+030.00E+001.09E+020.00E+000.00E+004.61E+03-6.49E+03-1.28E+04-1.68E+03-1.68E+03-1.28E+04-1.28E+04108合計(jì)預(yù)制架梁002(最后)J[468]-6.29E+030.00E+005.43E-010.00E+000.00E+004.72E+03-6.63E+03-1.29E+04-1.58E+03-1.58E+03-1.29E+04-1.29E+04109合計(jì)預(yù)制架梁002(最后)I[468]-6.29E+030.00E+005.43E-010.00E+000.00E+004.72E+03-6.63E+03-1.29E+04-1.58E+03-1.58E+03-1.29E+04-1.29E+04109合計(jì)預(yù)制架梁002(最后)J[469]-6.29E+030.00E+00-1.08E+020.00E+000.00E+004.60E+03-6.48E+03-1.28E+04-1.69E+03-1.69E+03-1.28E+04-1.28E+04110合計(jì)預(yù)制架梁002(最后)I[469]-6.29E+030.00E+00-1.08E+020.00E+000.00E+004.60E+03-6.48E+03-1.28E+04-1.69E+03-1.69E+03-1.28E+04-1.28E+04110合計(jì)預(yù)制架梁002(最后)J[470]-6.27E+030.00E+00-2.15E+020.00E+000.00E+004.30E+03-6.08E+03-1.23E+04-1.97E+03-1.97E+03-1.23E+04-1.23E+04111合計(jì)預(yù)制架梁002(最后)I[470]-6.28E+030.00E+00-2.16E+020.00E+000.00E+004.31E+03-6.06E+03-1.23E+04-1.98E+03-1.98E+03-1.23E+04-1.23E+04111合計(jì)預(yù)制架梁002(最后)J[471]-6.28E+030.00E+00-4.53E+010.00E+000.00E+004.16E+03-5.88E+03-1.22E+04-2.12E+03-2.12E+03-1.22E+04-1.22E+04112合計(jì)預(yù)制架梁002(最后)I[471]-6.30E+030.00E+00-4.53E+010.00E+000.00E+004.16E+03-5.87E+03-1.22E+04-2.13E+03-2.13E+03-1.22E+04-1.22E+04112合計(jì)預(yù)制架梁002(最后)J[472]-6.24E+030.00E+00-4.28E+020.00E+000.00E+003.60E+03-5.12E+03-1.14E+04-2.63E+03-2.63E+03-1.14E+04-1.14E+04113合計(jì)預(yù)制架梁002(最后)I[472]-6.25E+030.00E+00-6.95E+020.00E+000.00E+003.62E+03-5.14E+03-1.14E+04-2.63E+03-2.63E+03-1.14E+04-1.14E+04113合計(jì)預(yù)制架梁002(最后)J[473]-4.84E+030.00E+00-6.27E+020.00E+000.00E+002.46E+03-3.30E+03-8.14E+03-2.38E+03-2.38E+03-8.14E+03-8.14E+03114合計(jì)預(yù)制架梁002(最后)I[473]-4.87E+030.00E+00-5.11E+020.00E+000.00E+002.48E+03-3.33E+03-8.19E+03-2.39E+03-2.39E+03-8.19E+03-8.19E+03114合計(jì)預(yù)制架梁002(最后)J[474]-3.90E+030.00E+00-3.49E+020.00E+000.00E+001.20E+03-1.59E+03-5.49E+03-2.71E+03-2.71E+03-5.49E+03-5.49E+03115合計(jì)預(yù)制架梁002(最后)I[474]-3.91E+030.00E+00-3.30E+020.00E+000.00E+001.20E+03-1.59E+03-5.50E+03-2.71E+03-2.71E+03-5.50E+03-5.50E+03115合計(jì)預(yù)制架梁002(最后)J[475]-3.88E+030.00E+00-3.41E+020.00E+000.00E+004.16E+02-5.55E+02-4.44E+03-3.47E+03-3.47E+03-4.44E+03-4.44E+03116合計(jì)預(yù)制架梁002(最后)I[475]-3.89E+030.00E+00-8.80E+020.00E+000.00E+004.16E+02-5.56E+02-4.44E+03-3.47E+03-3.47E+03-4.44E+03-4.44E+03116合計(jì)預(yù)制架梁002(最后)J[476]-3.89E+030.00E+00-8.69E+020.00E+000.00E+001.75E+02-2.34E+02-4.12E+03-3.71E+03-3.71E+03-4.12E+03-4.12E+03117合計(jì)預(yù)制架梁002(最后)I[476]0.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+00117合計(jì)預(yù)制架梁002(最后)J[721]0.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+00118合計(jì)預(yù)制架梁002(最后)I[477]-2.20E+030.00E+004.90E+020.00E+000.00E+006.19E+02-8.27E+02-3.03E+03-1.58E+03-1.58E+03-3.03E+03-3.03E+03118合計(jì)預(yù)制架梁002(最后)J[478]-2.20E+030.00E+005.01E+020.00E+000.00E+007.57E+02-1.01E+03-3.21E+03-1.45E+03-1.45E+03-3.21E+03-3.21E+03119合計(jì)預(yù)制架梁002(最后)I[478]-2.20E+030.00E+00-3.87E+010.00E+000.00E+007.57E+02-1.01E+03-3.21E+03-1.45E+03-1.45E+03-3.21E+03-3.21E+03119合計(jì)預(yù)制架梁002(最后)J[479]-2.23E+030.00E+00-7.16E+010.00E+000.00E+006.37E+02-8.47E+02-3.08E+03-1.59E+03-1.59E+03-3.08E+03-3.08E+03120合計(jì)預(yù)制架梁002(最后)I[479]-2.23E+030.00E+00-6.06E+010.00E+000.00E+006.35E+02-8.44E+02-3.07E+03-1.59E+03-1.59E+03-3.07E+03-3.07E+03120合計(jì)預(yù)制架梁002(最后)J[480]-2.78E+030.00E+005.42E+010.00E+000.00E+006.18E+02-8.36E+02-3.62E+03-2.16E+03-2.16E+03-3.62E+03-3.62E+03121合計(jì)預(yù)制架梁002(最后)I[480]-2.77E+030.00E+001.21E+020.00E+000.00E+006.11E+02-8.28E+02-3.60E+03-2.16E+03-2.16E+03-3.60E+03-3.60E+03121合計(jì)預(yù)制架梁002(最后)J[481]-3.62E+030.00E+00-9.53E+010.00E+000.00E+008.30E+02-1.20E+03-4.82E+03-2.79E+03-2.79E+03-4.82E+03-4.82E+03122合計(jì)預(yù)制架梁002(最后)I[481]-3.62E+030.00E+00-2.49E+020.00E+000.00E+008.24E+02-1.19E+03-4.80E+03-2.79E+03-2.79E+03-4.80E+03-4.80E+03122合計(jì)預(yù)制架梁002(最后)J[482]-3.64E+030.00E+00-2.01E+020.00E+000.00E+005.45E+02-7.84E+02-4.43E+03-3.10E+03-3.10E+03-4.43E+03-4.43E+03123合計(jì)預(yù)制架梁002(最后)I[482]-3.64E+030.00E+00-2.01E+020.00E+000.00E+005.51E+02-7.95E+02-4.43E+03-3.08E+03-3.08E+03-4.43E+03-4.43E+03123合計(jì)預(yù)制架梁002(最后)J[483]-3.64E+030.00E+00-2.46E+010.00E+000.00E+004.01E+02-5.76E+02-4.21E+03-3.24E+03-3.24E+03-4.21E+03-4.21E+03124合計(jì)預(yù)制架梁002(最后)I[483]-3.63E+030.00E+00-2.45E+010.00E+000.00E+004.07E+02-5.88E+02-4.22E+03-3.22E+03-3.22E+03-4.22E+03-4.22E+03124合計(jì)預(yù)制架梁002(最后)J[484]-3.64E+030.00E+00-1.13E+010.00E+000.00E+004.46E+02-6.42E+02-4.28E+03-3.20E+03-3.20E+03-4.28E+03-4.28E+03125合計(jì)預(yù)制架梁002(最后)I[484]-3.64E+030.00E+00-1.13E+010.00E+000.00E+004.46E+02-6.42E+02-4.28E+03-3.20E+03-3.20E+03-4.28E+03-4.28E+03125合計(jì)預(yù)制架梁002(最后)J[485]-3.64E+030.00E+009.39E-060.00E+000.00E+004.63E+02-6.67E+02-4.31E+03-3.18E+03-3.18E+03-4.31E+03-4.31E+03126合計(jì)預(yù)制架梁002(最后)I[485]-3.64E+030.00E+009.39E-060.00E+000.00E+004.63E+02-6.67E+02-4.31E+03-3.18E+03-3.18E+03-4.31E+03-4.31E+03126合計(jì)預(yù)制架梁002(最后)J[486]-3.64E+030.00E+001.12E+010.00E+000.00E+004.37E+02-6.30E+02-4.27E+03-3.20E+03-3.20E+03-4.27E+03-4.27E+03127合計(jì)預(yù)制架梁002(最后)I[486]-3.64E+030.00E+001.12E+010.00E+000.00E+004.37E+02-6.30E+02-4.27E+03-3.20E+03-3.20E+03-4.27E+03-4.27E+03127合計(jì)預(yù)制架梁002(最后)J[487]-3.62E+030.00E+002.45E+010.00E+000.00E+003.89E+02-5.62E+02-4.18E+03-3.23E+03-3.23E+03-4.18E+03-4.18E+03128合計(jì)預(yù)制架梁002(最后)I[487]-3.63E+030.00E+002.45E+010.00E+000.00E+003.83E+02-5.51E+02-4.18E+03-3.24E+03-3.24E+03-4.18E+03-4.18E+03128合計(jì)預(yù)制架梁002(最后)J[488]-3.62E+030.00E+002.01E+020.00E+000.00E+005.24E+02-7.56E+02-4.37E+03-3.09E+03-3.09E+03-4.37E+03-4.37E+03129合計(jì)預(yù)制架梁002(最后)I[488]-3.63E+030.00E+002.01E+020.00E+000.00E+005.18E+02-7.44E+02-4.37E+03-3.11E+03-3.11E+03-4.37E+03-4.37E+03129合計(jì)預(yù)制架梁002(最后)J[489]-3.59E+030.00E+002.49E+020.00E+000.00E+007.86E+02-1.13E+03-4.73E+03-2.81E+03-2.81E+03-4.73E+03-4.73E+03130合計(jì)預(yù)制架梁002(最后)I[489]-3.60E+030.00E+009.62E+010.00E+000.00E+007.92E+02-1.14E+03-4.74E+03-2.81E+03-2.81E+03-4.74E+03-4.74E+03130合計(jì)預(yù)制架梁002(最后)J[490]-2.74E+030.00E+00-1.29E+020.00E+000.00E+006.02E+02-8.16E+02-3.56E+03-2.14E+03-2.14E+03-3.56E+03-3.56E+03131合計(jì)預(yù)制架梁002(最后)I[490]-2.76E+030.00E+00-6.33E+010.00E+000.00E+006.09E+02-8.24E+02-3.58E+03-2.15E+03-2.15E+03-3.58E+03-3.58E+03131合計(jì)預(yù)制架梁002(最后)J[491]-2.21E+030.00E+005.44E+010.00E+000.00E+006.08E+02-8.08E+02-3.02E+03-1.60E+03-1.60E+03-3.02E+03-3.02E+03132合計(jì)預(yù)制架梁002(最后)I[491]-2.21E+030.00E+006.52E+010.00E+000.00E+006.10E+02-8.11E+02-3.02E+03-1.60E+03-1.60E+03-3.02E+03-3.02E+03132合計(jì)預(yù)制架梁002(最后)J[492]-2.18E+030.00E+004.34E+010.00E+000.00E+007.26E+02-9.68E+02-3.15E+03-1.46E+03-1.46E+03-3.15E+03-3.15E+03133合計(jì)預(yù)制架梁002(最后)I[492]-2.18E+030.00E+00-4.96E+020.00E+000.00E+007.26E+02-9.68E+02-3.15E+03-1.46E+03-1.46E+03-3.15E+03-3.15E+03133合計(jì)預(yù)制架梁002(最后)J[493]-2.18E+030.00E+00-4.85E+020.00E+000.00E+005.89E+02-7.86E+02-2.97E+03-1.59E+03-1.59E+03-2.97E+03-2.97E+03134合計(jì)預(yù)制架梁002(最后)I[493]0.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+00134合計(jì)預(yù)制架梁002(最后)J[726]0.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+00135合計(jì)預(yù)制架梁002(最后)I[494]-2.00E+030.00E+004.46E+020.00E+000.00E+00-9.61E+021.29E+03-2.96E+03-2.96E+03-2.96E+03-7.05E+02-7.05E+02135合計(jì)預(yù)制架梁002(最后)J[495]-2.00E+030.00E+004.57E+020.00E+000.00E+00-8.37E+021.12E+03-2.83E+03-2.83E+03-2.83E+03-8.74E+02-8.74E+02136合計(jì)預(yù)制架梁002(最后)I[495]-3.91E+030.00E+003.47E+020.00E+000.00E+001.15E+03-1.53E+03-5.44E+03-2.76E+03-2.76E+03-5.44E+03-5.44E+03136合計(jì)預(yù)制架梁002(最后)J[496]-3.93E+030.00E+003.25E+020.00E+000.00E+001.93E+03-2.55E+03-6.48E+03-2.00E+03-2.00E+03-6.48E+03-6.48E+03137合計(jì)預(yù)制架梁002(最后)I[496]-3.92E+030.00E+003.44E+020.00E+000.00E+001.92E+03-2.55E+03-6.47E+03-2.00E+03-2.00E+03-6.47E+03-6.47E+03137合計(jì)預(yù)制架梁002(最后)J[497]-4.89E+030.00E+004.84E+020.00E+000.00E+003.21E+03-4.30E+03-9.19E+03-1.68E+03-1.68E+03-9.19E+03-9.19E+03138合計(jì)預(yù)制架梁002(最后)I[497]-4.86E+030.00E+005.99E+020.00E+000.00E+003.18E+03-4.27E+03-9.13E+03-1.68E+03-1.68E+03-9.13E+03-9.13E+03138合計(jì)預(yù)制架梁002(最后)J[498]-6.26E+030.00E+006.62E+020.00E+000.00E+004.37E+03-6.18E+03-1.24E+04-1.89E+03-1.89E+03-1.24E+04-1.24E+04139合計(jì)預(yù)制架梁002(最后)I[498]-6.25E+030.00E+003.96E+020.00E+000.00E+004.35E+03-6.15E+03-1.24E+04-1.90E+03-1.90E+03-1.24E+04-1.24E+04139合計(jì)預(yù)制架梁002(最后)J[499]-6.29E+030.00E+004.16E+010.00E+000.00E+004.91E+03-6.88E+03-1.32E+04-1.39E+03-1.39E+03-1.32E+04-1.32E+04140合計(jì)預(yù)制架梁002(最后)I[499]-6.28E+030.00E+004.16E+010.00E+000.00E+004.90E+03-6.90E+03-1.32E+04-1.38E+03-1.38E+03-1.32E+04-1.32E+04140合計(jì)預(yù)制架梁002(最后)J[500]-6.27E+030.00E+002.10E+020.00E+000.00E+005.02E+03-7.04E+03-1.33E+04-1.25E+03-1.25E+03-1.33E+04-1.33E+04141合計(jì)預(yù)制架梁002(最后)I[500]-6.26E+030.00E+002.10E+020.00E+000.00E+005.02E+03-7.05E+03-1.33E+04-1.24E+03-1.24E+03-1.33E+04-1.33E+04141合計(jì)預(yù)制架梁002(最后)J[501]-6.27E+030.00E+001.06E+020.00E+000.00E+005.30E+03-7.42E+03-1.37E+04-9.73E+02-9.73E+02-1.37E+04-1.37E+04142合計(jì)預(yù)制架梁002(最后)I[501]-6.27E+030.00E+001.06E+020.00E+000.00E+005.30E+03-7.42E+03-1.37E+04-9.73E+02-9.73E+02-1.37E+04-1.37E+04142合計(jì)預(yù)制架梁002(最后)J[502]-6.26E+030.00E+00-5.35E-010.00E+000.00E+005.39E+03-7.55E+03-1.38E+04-8.72E+02-8.72E+02-1.38E+04-1.38E+04143合計(jì)預(yù)制架梁002(最后)I[502]-6.26E+030.00E+00-5.35E-010.00E+000.00E+005.39E+03-7.55E+03-1.38E+04-8.72E+02-8.72E+02-1.38E+04-1.38E+04143合計(jì)預(yù)制架梁002(最后)J[503]-6.26E+030.00E+00-1.08E+020.00E+000.00E+005.28E+03-7.40E+03-1.37E+04-9.80E+02-9.80E+02-1.37E+04-1.37E+04144合計(jì)預(yù)制架梁002(最后)I[503]-6.26E+030.00E+00-1.08E+020.00E+000.00E+005.28E+03-7.40E+03-1.37E+04-9.80E+02-9.80E+02-1.37E+04-1.37E+04144合計(jì)預(yù)制架梁002(最后)J[504]-6.24E+030.00E+00-2.11E+020.00E+000.00E+004.98E+03-7.01E+03-1.33E+04-1.26E+03-1.26E+03-1.33E+04-1.33E+04145合計(jì)預(yù)制架梁002(最后)I[504]-6.24E+030.00E+00-2.11E+020.00E+000.00E+004.98E+03-7.01E+03-1.33E+04-1.26E+03-1.26E+03-1.33E+04-1.33E+04145合計(jì)預(yù)制架梁002(最后)J[505]-6.24E+030.00E+00-4.23E+010.00E+000.00E+004.85E+03-6.85E+03-1.31E+04-1.39E+03-1.39E+03-1.31E+04-1.31E+04146合計(jì)預(yù)制架梁002(最后)I[505]-6.24E+030.00E+00-4.23E+010.00E+000.00E+004.85E+03-6.85E+03-1.31E+04-1.39E+03-1.39E+03-1.31E+04-1.31E+04146合計(jì)預(yù)制架梁002(最后)J[506]-6.19E+030.00E+00-4.20E+020.00E+000.00E+004.32E+03-6.14E+03-1.23E+04-1.87E+03-1.87E+03-1.23E+04-1.23E+04147合計(jì)預(yù)制架梁002(最后)I[506]-6.20E+030.00E+00-6.84E+020.00E+000.00E+004.34E+03-6.17E+03-1.24E+04-1.87E+03-1.87E+03-1.24E+04-1.24E+04147合計(jì)預(yù)制架梁002(最后)J[507]-4.81E+030.00E+00-6.18E+020.00E+000.00E+003.15E+03-4.25E+03-9.06E+03-1.65E+03-1.65E+03-9.06E+03-9.06E+03148合計(jì)預(yù)制架梁002(最后)I[507]-4.83E+030.00E+00-5.03E+020.00E+000.00E+003.19E+03-4.29E+03-9.12E+03-1.65E+03-1.65E+03-9.12E+03-9.12E+03148合計(jì)預(yù)制架梁002(最后)J[508]-3.88E+030.00E+00-3.44E+020.00E+000.00E+001.90E+03-2.52E+03-6.40E+03-1.99E+03-1.99E+03-6.40E+03-6.40E+03149合計(jì)預(yù)制架梁002(最后)I[508]-3.89E+030.00E+00-3.26E+020.00E+000.00E+001.90E+03-2.53E+03-6.42E+03-1.99E+03-1.99E+03-6.42E+03-6.42E+03149合計(jì)預(yù)制架梁002(最后)J[509]-3.87E+030.00E+00-3.37E+020.00E+000.00E+001.12E+03-1.51E+03-5.37E+03-2.74E+03-2.74E+03-5.37E+03-5.37E+03150合計(jì)預(yù)制架梁002(最后)I[509]-3.87E+030.00E+00-8.87E+020.00E+000.00E+001.12E+03-1.51E+03-5.37E+03-2.75E+03-2.75E+03-5.37E+03-5.37E+03150合計(jì)預(yù)制架梁002(最后)J[510]-2.91E-020.00E+001.02E-040.00E+000.00E+000.00E+000.00E+00-2.91E-02-2.91E-02-2.91E-02-2.91E-02-2.91E-02經(jīng)計(jì)算，被運(yùn)梁的上下緣均不出現(xiàn)拉應(yīng)力，滿足要求。在運(yùn)梁時(shí)，應(yīng)在被運(yùn)梁梁端防置木枕或鋼梁墊置，使梁體中部懸空，并做好限位，避免滑移。1.4施工過(guò)程分析1.4.1施工順序本橋?yàn)橄群?jiǎn)支后連續(xù)T梁結(jié)構(gòu)，在計(jì)算時(shí)應(yīng)當(dāng)遵循合理的施工順序。模型中主要的施工過(guò)程模擬如下表所示。表1主要施工過(guò)程序號(hào)施工內(nèi)容模擬說(shuō)明CS1施工下部結(jié)構(gòu)激活下部結(jié)構(gòu)CS2預(yù)制T梁架設(shè)預(yù)制縱梁激活，張拉預(yù)制梁鋼束，激活臨時(shí)支撐CS2現(xiàn)澆段澆筑現(xiàn)澆段及橫向聯(lián)系激活，張拉頂板鋼束，激活永久支座完成體系轉(zhuǎn)換CS3施工二期激活鋪裝及欄桿荷載CS4收縮、徐變歷時(shí)3650天1.4.2計(jì)算原則1）作用（或荷載）效應(yīng)按彈性方法進(jìn)行計(jì)算；2）內(nèi)力計(jì)算考慮施工方法及順序影響。1.5T梁施工階段計(jì)算1.5.1計(jì)算模型該設(shè)計(jì)使用三維有限元計(jì)算軟件MidasCivil2020（v1.1版）進(jìn)行整體計(jì)算和分析，并使用MidasCivilDesigner（2020版）進(jìn)行驗(yàn)證。該單元是預(yù)應(yīng)力T形梁系統(tǒng)，首先簡(jiǎn)單地對(duì)其進(jìn)行支撐，然后連續(xù)進(jìn)行預(yù)應(yīng)力，并具有7個(gè)橫梁。為了準(zhǔn)確模擬T形梁結(jié)構(gòu)的力和橫向內(nèi)力的分布，使用了梁網(wǎng)格方法進(jìn)行建模。約束系統(tǒng)：支撐采用彈性連接仿真，支撐的底部節(jié)點(diǎn)被固結(jié)?？紤]到施工過(guò)程中收縮，靜載，蠕變和預(yù)應(yīng)力的累積影響，施工階段分為子結(jié)構(gòu)施工，預(yù)制梁架設(shè)，現(xiàn)澆施工，第二階段鋪裝，收縮和蠕變條件。橋梁完工后，考慮系統(tǒng)溫度，不均勻沉降，車輛載荷，溫度梯度等影響，并按照規(guī)范中的有關(guān)要求進(jìn)行結(jié)構(gòu)分析，并在計(jì)算中進(jìn)行檢查。符合A型預(yù)應(yīng)力組件。計(jì)算采用kN-m系統(tǒng)。其中，應(yīng)力結(jié)果單位為MPa，內(nèi)力結(jié)果單位為kN，kN·m，位移結(jié)果單位為mm。這些模型都使用空間梁?jiǎn)卧獊?lái)模擬結(jié)構(gòu)構(gòu)件。計(jì)算模型如下圖所示：圖7有限元模型圖8有限元消隱模型1）節(jié)點(diǎn)數(shù)：371；2）單元數(shù)：622；3）邊界條件數(shù)：4;4）施工階段數(shù)：3，構(gòu)造步驟如下：施工階段1：預(yù)制梁；建設(shè)期30.0天；施工階段2：梁體的現(xiàn)澆連接；建設(shè)期30.0天；建設(shè)階段3：第二階段建設(shè)；建設(shè)期30.0天；1.5.2荷載工況及荷載組合1）自重自重系數(shù)：-1.042）整體升降溫1:升溫，30.0℃；2:降溫，-20.0℃；3）徐變收縮徐變收縮的齡期：3.0天；程序自動(dòng)計(jì)算出理論厚度，計(jì)算公式為：h=a×Ac/u;u=L0+a×Li;在周長(zhǎng)u的計(jì)算公式中：Li是內(nèi)輪廓周長(zhǎng)，L0是外輪廓周長(zhǎng)，a是要考慮的輪廓周長(zhǎng)的比例系數(shù)。4）支座沉降根據(jù)每個(gè)基礎(chǔ)的最不利情況和基礎(chǔ)最大沉降的最不利荷載組合進(jìn)行計(jì)算。第一組的不均勻沉降為-5.0mm；第二組不均勻沉降為-5.0mm；第三組不均勻沉降為-5.0mm；第四組不均勻沉降為-5.0mm；5）可變荷載活載：車輛載重為活載，橋梁等級(jí)為一級(jí)公路。對(duì)于車輛負(fù)載的總縱向沖擊系數(shù)μ，根據(jù)“公路橋梁和涵洞通用設(shè)計(jì)規(guī)范”（JTGD60-2015）第4.3.2條，可以如下計(jì)算沖擊系數(shù)：EQ當(dāng)f＜1.5Hz時(shí)，μ＝0.05；EQ當(dāng)1.5Hz≤f≤14Hz時(shí)，μ＝0.1767ln(f)－0.0157；EQ當(dāng)f＞14Hz時(shí)，μ＝0.45；根據(jù)“規(guī)范”，計(jì)算出的沖擊系數(shù)μ=0.174，結(jié)構(gòu)基頻f=2.92Hz6）荷載組合表2荷載工況序號(hào)工況名稱描述1鋼束一次TP2鋼束二次TS3徐變二次CS4收縮二次SS5支座沉降SM6恒荷載DL7車道荷載M8降溫T19負(fù)溫度梯度TPG110升溫T11正溫度梯度TPG12基本1基本113基本2基本214基本3基本315基本4基本416基本5基本517基本6基本618基本7基本719基本8基本820基本9基本921基本10基本1022基本11基本1123基本12基本12續(xù)表2荷載工況24基本13基本1325基本14基本1426基本15基本1527基本16基本1628基本17基本1729基本18基本1830基本19基本1931基本20基本2032頻遇21頻遇2133頻遇22頻遇2234頻遇23頻遇2335頻遇24頻遇2436頻遇25頻遇2537頻遇26頻遇2638頻遇27頻遇2739頻遇28頻遇2840頻遇29頻遇2941準(zhǔn)永久30準(zhǔn)永久3042準(zhǔn)永久31準(zhǔn)永久3143準(zhǔn)永久32準(zhǔn)永久3244準(zhǔn)永久33準(zhǔn)永久3345準(zhǔn)永久34準(zhǔn)永久3446準(zhǔn)永久35準(zhǔn)永久3547準(zhǔn)永久36準(zhǔn)永久3648準(zhǔn)永久37準(zhǔn)永久3749準(zhǔn)永久38準(zhǔn)永久3850標(biāo)準(zhǔn)39標(biāo)準(zhǔn)3951標(biāo)準(zhǔn)40標(biāo)準(zhǔn)4052標(biāo)準(zhǔn)41標(biāo)準(zhǔn)4153標(biāo)準(zhǔn)42標(biāo)準(zhǔn)42續(xù)表2荷載工況54標(biāo)準(zhǔn)43標(biāo)準(zhǔn)4355標(biāo)準(zhǔn)44標(biāo)準(zhǔn)4456標(biāo)準(zhǔn)45標(biāo)準(zhǔn)4557標(biāo)準(zhǔn)46標(biāo)準(zhǔn)4658標(biāo)準(zhǔn)47標(biāo)準(zhǔn)47荷載組合列表：序號(hào)類型方式詳情基本1基本組合相加基本組合(永久荷載):0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)基本2基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4M基本3基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4T[1]+1.4TPG[1]基本4基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4T[1]+1.4TPG[2]基本5基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4T[2]+1.4TPG[1]基本6基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4T[2]+1.4TPG[2]基本7基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4M+1.05T[1]+1.05TPG[1]基本8基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4M+1.05T[1]+1.05TPG[2]基本9基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4M+1.05T[2]+1.05TPG[1]基本10基本組合相加基本:0.5SM[1]+1.2(cD)+1.2(cTS)+1.0(cCR)+1.0(cSH)+1.4M+1.05T[2]+1.05TPG[2]基本11基本組合相加基本組合(永久荷載):0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)基本12基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4M基本13基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4T[1]+1.4TPG[1]基本14基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4T[1]+1.4TPG[2]基本15基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4T[2]+1.4TPG[1]基本16基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4T[2]+1.4TPG[2]基本17基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4M+1.05T[1]+1.05TPG[1]基本18基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4M+1.05T[1]+1.05TPG[2]基本19基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4M+1.05T[2]+1.05TPG[1]基本20基本組合相加基本:0.5SM[1]+1.0(cD)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.4M+1.05T[2]+1.05TPG[2]頻遇21頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[1]+0.8TPG[1]頻遇22頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[1]+0.8TPG[2]頻遇23頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[2]+0.8TPG[1]頻遇24頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[2]+0.8TPG[2]頻遇25頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.7/(1+mu)M頻遇26頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.7/(1+mu)M+1.0T[...頻遇27頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.7/(1+mu)M+1.0T[...頻遇28頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.7/(1+mu)M+1.0T[...頻遇29頻遇組合相加頻遇:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.7/(1+mu)M+1.0T[...準(zhǔn)永久30準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[1]+0.8TPG[1]準(zhǔn)永久31準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[1]+0.8TPG[2]準(zhǔn)永久32準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[2]+0.8TPG[1]準(zhǔn)永久33準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[2]+0.8TPG[2]準(zhǔn)永久34準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.4/(1+mu)M準(zhǔn)永久35準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.4/(1+mu)M+1.0...準(zhǔn)永久36準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.4/(1+mu)M+1.0...準(zhǔn)永久37準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.4/(1+mu)M+1.0...準(zhǔn)永久38準(zhǔn)永久組合相加準(zhǔn)永久:1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+0.4/(1+mu)M+1.0...標(biāo)準(zhǔn)39標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[1]+1.0TPG[1]標(biāo)準(zhǔn)40標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[1]+1.0TPG[2]標(biāo)準(zhǔn)41標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[2]+1.0TPG[1]標(biāo)準(zhǔn)42標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0T[2]+1.0TPG[2]標(biāo)準(zhǔn)43標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0M標(biāo)準(zhǔn)44標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0M+1.0T[1]+1.0TP...標(biāo)準(zhǔn)45標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0M+1.0T[1]+1.0TP...標(biāo)準(zhǔn)46標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0M+1.0T[2]+1.0TP...標(biāo)準(zhǔn)47標(biāo)準(zhǔn)組合相加標(biāo)準(zhǔn):1.0SM[1]+1.0(cD)+1.0(cTP)+1.0(cTS)+1.0(cCR)+1.0(cSH)+1.0M+1.0T[2]+1.0TP...1.5.3施工階段應(yīng)力計(jì)算根據(jù)《公路鋼筋混凝土及預(yù)應(yīng)力混凝土橋梁和涵洞設(shè)計(jì)規(guī)范》（JTG3362-2018），該截面邊緣混凝土在建筑荷載下的正應(yīng)力（例如構(gòu)件重量和預(yù)應(yīng)力）應(yīng)滿足以下要求：壓應(yīng)力拉應(yīng)力主梁為C50混凝土，施工過(guò)程中混凝土強(qiáng)度已達(dá)到標(biāo)準(zhǔn)強(qiáng)度的90％，因此壓應(yīng)力的允許值＝0.70×0.9×32.4＝20.41Mpa，拉應(yīng)力允許值＝0.70×0.9×2.65＝1.67Mpa。主梁架設(shè)后，T梁正應(yīng)力圖如下：圖9主梁架設(shè)階段T梁上緣正應(yīng)力圖（單位：MPa）圖10主梁架設(shè)階段T梁下緣正應(yīng)力圖（單位：MPa）現(xiàn)澆段施工完成后，T梁正應(yīng)力圖如下：圖11現(xiàn)澆段施工階段T梁上緣正應(yīng)力圖（單位：MPa）圖12現(xiàn)澆段施工階段T梁下緣正應(yīng)力圖（單位：MPa）橋面鋪裝、防撞護(hù)欄等施工后，T梁正應(yīng)力圖如下：圖13二期施工階段T梁上緣正應(yīng)力圖（單位：MPa）圖14二期施工階段T梁下緣正應(yīng)力圖（單位：MPa）根據(jù)以上結(jié)果，在施工過(guò)程中，T型梁下邊緣的最大壓縮應(yīng)力為14.06MPa，上邊緣的最大壓縮應(yīng)力為8.7MPa，沒(méi)有拉應(yīng)力。施工過(guò)程中主梁的應(yīng)力分布應(yīng)符合規(guī)范要求。應(yīng)力結(jié)果匯總表單元荷載階段步驟位置軸向剪力-y剪力-z彎矩(+y)彎矩(-y)彎矩(+z)彎矩(-z)Cb(min/max)Cb1(-y+z)Cb2(+y+z)Cb3(+y-z)Cb4(-y-z)150合計(jì)二期002(最后)J[510]-3.80E-020.00E+001.33E-04-3.32E-023.32E-020.00E+000.00E+00-7.12E-02-4.79E-03-7.12E-02-4.90E-02-2.69E-02133合計(jì)二期002(最后)I[492]-4.97E+032.56E+003.32E+021.73E+01-1.73E+014.86E+02-6.42E+02-5.61E+03-4.50E+03-4.46E+03-5.60E+03-5.61E+03150合計(jì)二期002(最后)I[509]-3.82E+030.00E+00-8.84E+02-3.32E-023.32E-021.11E+03-1.49E+03-5.31E+03-2.71E+03-2.71E+03-5.31E+03-5.31E+03134合計(jì)二期002(最后)I[493]-2.86E+032.56E+008.22E+022.45E+01-2.45E+016.77E+01-9.26E+01-2.96E+03-2.82E+03-2.77E+03-2.95E+03-2.96E+03101合計(jì)二期002(最后)I[460]-1.56E-020.00E+00-2.24E-05-1.36E-021.36E-020.00E+001.06E-10-2.92E-02-1.96E-03-2.92E-02-2.01E-02-1.10E-02101合計(jì)二期002(最后)J[461]-3.85E+030.00E+008.90E+02-1.36E-021.36E-024.60E+02-6.18E+02-4.47E+03-3.39E+03-3.39E+03-4.47E+03-4.47E+03132合計(jì)二期002(最后)J[492]-4.97E+032.56E+003.44E+021.72E+01-1.72E+014.86E+02-6.42E+02-5.62E+03-4.50E+03-4.46E+03-5.60E+03-5.62E+03132合計(jì)二期002(最后)I[491]-5.00E+032.56E+003.35E+02-3.92E+013.92E+01-2.93E+024.17E+02-5.33E+03-5.25E+03-5.33E+03-4.59E+03-4.57E+03134合計(jì)二期002(最后)J[726]-2.86E+032.56E+008.39E+023.32E+01-3.32E+013.62E+02-4.96E+02-3.37E+03-2.54E+03-2.47E+03-3.35E+03-3.37E+03149合計(jì)二期002(最后)J[509]-3.82E+03-6.58E+00-1.39E+02-7.81E+017.81E+011.11E+03-1.48E+03-5.33E+03-2.63E+03-2.79E+03-5.33E+03-5.28E+03102合計(jì)二期002(最后)I[461]-3.85E+033.90E+001.48E+02-4.61E+014.61E+014.59E+02-6.16E+02-4.48E+03-3.34E+03-3.44E+03-4.48E+03-4.45E+03102合計(jì)二期002(最后)J[462]-3.87E+033.90E+001.55E+024.05E+01-4.05E+018.08E+02-1.08E+03-4.97E+03-3.11E+03-3.02E+03-4.94E+03-4.97E+03131合計(jì)二期002(最后)J[491]-4.99E+032.77E-013.11E+02-4.04E+004.04E+00-2.97E+024.23E+02-5.29E+03-5.29E+03-5.29E+03-4.57E+03-4.57E+03131合計(jì)二期002(最后)I[490]-6.21E+032.49E-012.66E+02-1.36E+011.36E+01-1.10E+031.55E+03-7.32E+03-7.29E+03-7.32E+03-4.67E+03-4.66E+03149合計(jì)二期002(最后)I