三跨连续梁桥的分析（Analysis of three span continuous beam bridge）

1、Good is good, but better carries it.精益求精，善益求善。三跨连续梁桥的分析（Analysis of three span continuous beam bridge）三跨连续梁桥的分析（Analysis of three span continuous beam bridge）三跨连续梁桥的分析（Analysis of three span continuous beam bridge）菲尼/清晰三跨连续梁桥/ prep7！上顶板的关键点位置K，1,0,0K，2，- 2.1K，3，2.6，-0.125K，4，2.8，-0.125K，5，3，-0.125K，

2、6，3.4857，-0.1036K，7，3.9714，-0.0821K，8，4.4571，-0.0607K，9，4.9429，-0.0393K，10，5.4286，-0.0179K，11，0.0036 - 5.9143,K，12，0.025 - 6.4,！下底板的关键点位置K、13、2.8，-1.85K、14、-1.85！上顶板关键点49m位置kgen，9,1,12,1,0,0,49 / 8100！上顶板关键点50m位置kgen，2,1,12,1,0,0,50900！上顶板关键点50 + 34.5m位置kgen，9901912,1,0,0, 34.5/8100！上顶板关键点5035m位置kge

3、n，2901912,1,0,0,35900！板的高度由1.85m变至3.875mC10.000843399！49m边跨的二次抛物线系数C20.001701323！34.5m边跨的二次抛物线系数*暗淡，X1，数组，8！定义边跨的八分点位置*做的事，我1,8,1X1（i）= i * 49/8* enddo*昏暗，x2，数组，8！定义中跨的八分点位置*做的事，我1,8,1X2（我）=我34.5/8* enddo！下底板边跨（4900万）八分点关键点的Y坐标位置*暗淡，镱，数组，8*做的事，我1,8,1镱（I）C1X1（i）* 2* enddo！下底板中跨（34.5m）八分点关键点的Y坐标位置*暗，Y

4、M，阵列，8*做的事，我1,8,1YM（我）= C2 *（X2（I）- 34.5）* 2 + 2.025* enddo！生成下底边跨（4900万）八分点的关键点*做的事，我1,8,1kgen，2,13,14,1,0，-镱（I），X1（我），我* 100* enddo！下底板50m处关键点kgen，2813814,1,0,0,1100！生成下底中跨（5034.5m）八分点的关键点*做的事，我1,8,1kgen，2913914,1,0，YM（我），X2（我），我* 100* enddo！边墩处的横隔板位置！1、2、3、414为0m处横隔板位置的所有关键点！51,52,5354为- 0.5m处横隔板

5、位置的所有关键点kgen，2,1,14,1,0，- 0.5,50！中墩处的横隔板位置！801802803804814为49m处横隔板位置的所有关键点！901902903904为50m处横隔板位置的所有关键点！连成板面！上顶板，板厚0.25m等，1、Shell63MP，窝点，12500国会议员、前，1 3.5e10MP，prxy，、0.1667R为0.25*做的事，我0,16,1一、1 +我100,1 +（i + 1）* 100,2 +（i + 1）* 100,2 +我* 100* enddo一、1,51,52,2画面，1,1,1切，没有！上顶板的加腋，板厚0.375mR、0.375*做的事，我

6、0,16,1一、2 +我100,2 +（i + 1）* 100,3 +（i + 1）* 100,3 +我* 100* enddo一、2,52,53,3画面，1,2，OneAsel, none! rib and flange junction plate thickness 0.5mR, 3,0.5*do, I, 0,16,1A, 3+i*100,3+ (i+1), *100,4+ (i+1), *100,4+i*100A, 4+i*100,4+ (i+1), *100,5+ (i+1), *100,5+i*100*enddoA, 3,53,54,4A, 4,54,55,5AATT, 1,3,1

7、Asel, none! the flange thickness gradient, the gradient defined below the flange thickness*dim, HD, array, 9Hd (9) =0.2Hd (8) =1* (3.4/7) *0.3/3.4+0.2Hd (7) =2* (3.4/7) *0.3/3.4+0.2Hd (6) =3* (3.4/7) *0.3/3.4+0.2Hd (5) =4* (3.4/7) *0.3/3.4+0.2Hd (4) =5* (3.4/7) *0.3/3.4+0.2Hd (3) =6* (3.4/7) *0.3/3.

8、4+0.2Hd (2) =7* (3.4/7) *0.3/3.4+0.2Hd (1) =0.5*do, I, 1,8,1R, 30+i, HD (I), HD (I), HD (i+1), HD (i+1) - define the flange thickness of the gradient*enddo*do, I, 0,16,1*do, K, 5,11,1A, k+i*100, k+ (i+1), *100, k+1+ (i+1), *100, k+1+i*100A, K, k+50, k+1+50, k+1AATT, 1, k+26,1Asel, none*enddo*enddoAs

9、el, noneThe thickness of 0.5m floor!R, 4,0.5*do, I, 0,16,1A, 4+i*100,4+ (i+1), *100,13+ (i+1), *100,13+i*100*enddoA, 4,54,63,13AATT, 1,4,1Asel, noneBottom plate thickness 0.25m to 0.4m, by 2 times parabola overC3=6.2474e-05 two parabolic coefficients of thickness variation across the bottom plateC4=

10、0.000126024 the two parabolic coefficients of the thickness change of the mid span floor*dim, H1, array, 8, cross the bottom thickness*do, I, 1,8,1H1 (I) =0.25+c3*x1 (I) *2*enddo*dim, H2, array, 9, mid span floor thickness*do, I, 1,8,1H2 (I) =0.25+c4*x2 (I) *2*enddoH2 (9) =0.4Generation of cross bor

11、der backplane units*do, I, 1,8,1R, 10+i, H1 (I)A, 13+ (i-1), *100,13+i*100,14+i*100,14+ (i-1), *100AATT, 1,10+i, 1Asel, none*enddoGenerate the backplane units of the midspan*do, I, 1,9,1R, 20+i, H2 (I)A, 13+ (i+7), *100,13+ (i+8), *100,14+ (i+8), *100,14+ (i+7), *100AATT, 1,20+i, 1Asel, none*enddoA,

12、 13,63,64,14AATT, 1,20+i, 1Asel, noneR, 50,0.5! Diaphragm thickness 2mA, 1,2,13,14! End diaphragm!A, 51,52,63,64A, 801802813814A, 901902913914AATT, 1,50,1AllselEsize, 0.4Mshape, 0Mshkey, 1Amesh, allNsel, allNsym, x, 10000, allEsym, x, 10000, allLocal, 11,0, 84.5Csys, 11AllselNsym, Z, 100000, allEsym

13、, Z, 100000, allAllselNummrg, allNumcmp, allCsys, 0Apply the support constraintSupport! Location choice in the rib plate (end support)Nsel, s, LOC, y, -1.85Nsel, R, LOC, x, -3, -2.6Nsel, R, LOC, Z, -0.5,0D, all, UX, uy, ROTY, Rotzallselnsel, s, loc, y, -1.85nsel, r, loc, x, 3,2.6nsel, r, loc, z, - 0

14、.5,0d, all, ux, uy, roty, rotzallselnsel, s, loc, y, -1.85nsel, r, loc, x, - 3, - 2.6nsel, r, loc, z, 169169.5d, all, ux, uy, roty, rotzallselnsel, s, loc, y, -1.85nsel, r, loc, x, 3,2.6nsel, r, loc, z, 169169.5d, all, ux, uy, roty, rotz! 中部支座allselnsel, s, loc, y, -3.875nsel, r, loc, x, 3,2.6nsel, r, loc, z, 49,50d, all, ux, uy, roty, rotzallselnsel, s, loc, y, -3.875nsel, r, loc, x, - 3, - 2.6nsel, r, loc, z, 49,50d, all, ux, uy, roty, rotzallselnsel, s, loc, y, -3.875