1、長沙理工大學(xué)工程軟件及應(yīng)用課程設(shè)計楓溪大橋鋼箱梁頂推工況125靜力計算及臨時墩L3 穩(wěn)定性分析學(xué) 院：土木與建筑學(xué)院專業(yè)班級：工程力學(xué)1101班學(xué) 號：201115020125姓 名：羅逍宇設(shè)計時間：2014.12.72014.12.20指導(dǎo)教師：董創(chuàng)文目錄一、課程設(shè)計任務(wù)書 TOC o 1-5 h z 二、 計算書11、設(shè)計資料1 HYPERLINK l bookmark17 o Current Document 2、各類截面參數(shù)計算1 HYPERLINK l bookmark20 o Current Document 3、楓溪大橋鋼箱梁頂推工況125靜力計算3 HYPERLINK l bo

2、okmark39 o Current Document 4、楓溪大橋臨時墩L3穩(wěn)定性分析125、穩(wěn)定性分析.23一、設(shè)計資料：工程背景及主要參數(shù)見表1、圖1和表2。表1工況信息班級學(xué)號最后 兩位數(shù)25#鋼箱梁節(jié) 段過臨時墩A 中心距離導(dǎo)梁長度（m）導(dǎo)梁荷載集度與 標(biāo)準主梁荷載集 度比值導(dǎo)梁剛度與標(biāo)準 主梁剛度比值臨時墩類型1班25125580.120.24L3縱橋向橫橋向圖1臨時墩構(gòu)造示意圖表2臨時墩計算參數(shù)類型主鋼管規(guī)格D*T（外 徑*壁厚）（mm）連接系規(guī)格d*t （外 徑*壁厚）（mm）主鋼管總長（m）連接系間距（m）L2900*12500*82810二、各類截面參數(shù)計算：由CAD繪圖及

3、查詢面域特性得:rruuuuuu1mA類截面面域 面積：91.2167 邊界框：周長：1164.2615X: -58.548366.5294Y: -16.476218.9838質(zhì)心：慣性矩：慣性積：旋轉(zhuǎn)半徑:X: 15.0760主力矩與質(zhì)心的X-YX: 0.0000Y : 0.0000X: 20732.2237Y: 123536.6701XY: -5655.0344Y: 36.8011方向:I: 20422.0890 沿0.9985 -0.0548J: 123846.8048 沿0.0548 0.9985B類截面面域 面積:91.2167 邊界框：周長：1164.2615X: -58.5483

4、66.5294Y: -16.476218.9838質(zhì)心：慣性矩：慣性積：旋轉(zhuǎn)半徑:X: 15.0760主力矩與質(zhì)心的X-YX: 0.0000Y: 0.0000X: 20732.2237Y: 123536.6701XY: -5655.0344Y: 36.8011方向：I: 20422.0890 沿J: 123846.8048 沿0.9985 -0.05480.0548 0.9985C類截面面域 面積:78.5822 邊界框：周長:1164.0555X: -57.982867.0950Y: -16.722218.6378質(zhì)心：慣性矩：慣性積：旋轉(zhuǎn)半徑:X: 14.8843主力矩與質(zhì)心的X-Y方向:

5、X: 0.0000Y: 0.0000X: 17409.4070Y: 106769.6425XY: -5107.7509Y: 36.8605I: 17118.4002 沿0.9984 -0.0569J: 107060.6493 沿0.0569 0.9984D類截面面域面積：73.0671邊界框：X: -56.3876 -Y： -17.9221 -質(zhì)心： X: 0.0000慣性矩：慣性積：旋轉(zhuǎn)半徑:X： 14.6849X： 15756.7452XY： -3015.4112周長：1163.9849-68.6901-17.3779Y： 0.0000Y： 100237.5744Y： 37.0386周長：

6、1163.984968.690117.3779Y: 0.0000Y: 100237.5744Y: 37.0386主力矩與質(zhì)心的X-Y方向:I： 15649.2516 沿0.9994 -0.0356J: 100345.0680 沿0.0356 0.9994E類截面面域面積：73.0671邊界框：X: -56.3877 -Y: -17.9221 -質(zhì)心： X: 0.0000慣性矩：X: 15756.7452慣性積：XY: -3015.4112旋轉(zhuǎn)半徑：X: 14.6849主力矩與質(zhì)心的 X-Y 方向:I: 15649.2516 沿0.9994 -0.0356J: 100345.0680 沿0.03

7、56 0.9994三、楓溪大橋鋼箱梁頂推工況125靜力計算:1、根據(jù)鋼箱梁冊設(shè)計資料進行節(jié)點編號及建模，并施加荷載。編寫命令流如下:fini/clea/prep7et,1,beam44mp,prxy,1,0.3mp,ex,1,2.1e11mp,dens,1,7850*1.1416mp,prxy,2,0.3mp,ex,2,2.1e11mp,dens,2,7850*1.1414mp,prxy,3,0.3mp,ex,3,2.1e11mp,dens,3,7850*1.1603mp,prxy,4,0.3mp,ex,4,2.1e11mp,dens,4,7850*1.1712!A!B!C!D（導(dǎo)梁）mp,p

8、rxy,5,0.3mp,ex,5,2.1e11mp,dens,5,7850*1.1605!Er,1,0.912167*2,12.35366701,2.07322237*2,1.64762,5.85483,rmodif,1,21,1.89838rmodif,1,22,6.65294!A(B)r,2,0.785822*2,10.67696425,1.74094070*2,1.67222,5.79828,rmodif,2,21,1.86378rmodif,2,22,6.70950!Cr,3,0.730671*2,10.02375744,1.57567452*2,1.79221,5.63876,rmo

9、dif,3,21,1.73779rmodif,3,22,6.86901!D(E)r,4,0.730671*0.11*2,10.02375744*0.22,1.57567452*2*0.22,1.79221,5.63876,rmodif,4,21,1.73779rmodif,4,22,6.86901!導(dǎo)梁n, 1n, 2n, 3n, 4n, 5n, 6n, 7n, 8n, 9n, 10n, 11n, 12n, 13n, 14n, 15n, 16n, 17n, 18n, 19n, 20n, 21n, 22n, 23183175.75168.5161.25154146.75139.5132.2512

10、5122.65119.65116.3113.65110.65107.65104.65101.6599.6597.396.6593.6590.6587.65n,24 ,85.3n,25 ,84.65n,26 ,81.65n,27 ,78.65n,28 ,75.65n,29 ,75n,30 ,73.3n,31 ,72.65n,32 ,69.65n,33 ,66.65n,34 ,63.65n,35 ,61.3n,36 ,60.65n,37 ,57.65n,38 ,54.65n,39 ,51.65n,40 ,49.3n,41 ,48.65n,42 ,45.65n,43 ,42.65n,44 ,39.6

11、5n,45 ,37.3n,46 ,36.65n,47 ,33.65n,48 ,30.65n,49 ,27.65n,50 ,25.3n,51 ,24.65n,52 ,21.65n,52 ,18.65n,54 ,15.65n,55 ,13.3n,56 ,12.65n,57 ,9.65n,58 ,6.65n,59 ,3.65n,60 ,1.3n,61 ,0.65n,62 ,0n,63 ,-2.35n,64 ,-5.35n,65 ,-8.35n,66 ,-10.7n,67 ,-11.35n,68 ,-14.35n,69 ,-17.35n,70 ,-20.35n,71 ,-22.7n,72 ,-23.3

12、5n,73 ,-26.35n,74 ,-29.35n,75 ,-30n,76 ,-30.65n,77 ,-33.65n,78 ,-36.65n,79 ,-39.65n,80 ,-42n,81 ,-42.65n,82 ,-44.14n,83 ,-45.65n,84 ,-48.65n,85 ,-50.14n,86 ,-51.65n,87 ,-54n,88 ,-54.65n,89 ,-56.14n,90 ,-57.65n,91 ,-60.65n,92 ,-62.14n,93 ,-63.65n, 94 ,*do,i,1,91-66e,i,i+1*enddo esel,s,1,9,1,emodif,al

13、l,mat,4emodif,all,real,4 !導(dǎo)梁esel,s,9,11,1,emodif,all,mat,1emodif,all,real,1 !Aesel,s,12,16,1,emodif,all,mat,2emodif,all,real,1 !Besel,s,17,21,1, emodif,all,mat,3 emodif,all,real,2!Cesel,s,22,68,1, emodif,all,mat,4 emodif,all,real,3!Desel,s,69,72,1, emodif,all,mat,5 emodif,all,real,3!Eesel,s,73,91,1,

14、 emodif,all,mat,4 emodif,all,real,3!Dallsel,alld,4,uyd,27,uyd,60,uyd,60,uxd,80,uyd,83,uyd,87,uyd,90,uyacel,10,F,10,FY,-8078.9F,11,FY,-8078.9F,13,FY,-8078.9F,14,FY,-10350.3F,15,FY,-8078.9F,16,FY,-8078.9F,18,FY,-8078.9F,19,FY,-10350.3F,20,FY,-8078.9F,21,FY,-8078.9F,23,FY,-8078.9F,24,FY,-10350.3F,25,FY

15、,-8078.9F,26,FY,-8078.9F,29,FY,-8078.9F,30,FY,-10350.3F,31,FY, -8078.9F,32,FY, -8078.9F,34,FY, -8078.9F,35,FY, -10350.3F,36,FY, -8078.9F,37,FY, -8078.9F,39,FY, -8078.9F,40,FY, -10350.3F,41,FY, -8078.9F,42,FY, -8078.9F,44,FY, -8078.9F,45,FY, -10350.3F,46,FY, -8078.9F,47,FY, -8078.9F,49,FY, -8078.9F,5

16、0,FY, -10350.3F,51,FY, -8078.9F,52,FY, -8078.9F,54,FY, -8078.9F,55,FY, -10350.3F,56,FY, -8078.9F,57,FY, -8078.9F,59,FY, -8078.9F,61,FY, -10350.3F,62,FY, -8078.9F,63,FY, -8078.9F,65,FY, -8078.9F,66,FY, -10350.3F,67,FY, -8078.9F,68,FY, -8078.9F,70,FY, -8078.9F,71,FY, -10350.3F,72,FY, -8078.9F,74,FY, -

17、8078.9F,75,FY, -10350.3F,76,FY, -8078.9F,77,FY, -8078.9F,79,FY, -8078.9F,81,FY, -10350.3F,82,FY, -8078.9F,84,FY, -8078.9F,86,FY, -8078.9F,88,FY, -10350.3F,89,FY, -8078.9F, 91, FY, -8078.9!顯示變形!支反力!彎矩!負彎矩 etable,bar_k,smisc,2!剪力finish /solu solve finish/post1 pldisp,1 prrsol, etable,bar_i,ls,2 etable

18、,bar_j,ls,3 Finish2、建立模型圖如下:1NODESANSYSJAN 10 2015 13:27:08(1)鋼箱梁變形圖(2)鋼箱梁彎矩圖(3)鋼箱梁負彎矩(4)鋼箱梁剪力圖4、支座反力輸出結(jié)果PRINT REACTION SOLUTIONS PER NODE* POST1 TOTAL REACTION SOLUTION LISTING *LOAD STEP= 1 SUBSTEP= 1TIME= 1.0000 LOAD CASE= 0THE FOLLOWING X,Y,Z SOLUTIONS ARE IN GLOBAL COORDINATESNODEFXFYFZMXMYMZ40

19、.15469E+07270.11287E+08600.00000.84642E+07800.45637E+0783-0.15875E+07870.12641E+07900.96253E+06TOTAL VALUESVALUE0.00000.250154E+080.00000.00000.00000.0000四、楓溪大橋臨時墩L3穩(wěn)定性分析1、立柱、連接系主鋼管截面系數(shù)由CAD繪圖計算得：立柱面域面：積 0.0280周長:5.5920邊界框:X: -0.4500 - 0.4500Y: -0.4500 - 0.4500質(zhì)心：X: 0.0000 Y: 0.0000慣性矩：X: 0.0028Y: 0.

20、0028慣性積：XY: 0.0000旋轉(zhuǎn)半徑:X: 0.3147 Y: 0.3147主力矩與質(zhì)心的X-Y 方向：I: 0.0028沿0.7071 0.7071J: 0.0028 沿-0.7071 0.7071連接系面域面積：0.0047周長：3.1227邊界框：X: -0.2500 - 0.2500Y: -0.2500 - 0.2500慣性矩:X:0.0001Y: 0.0001慣性積：XY: 0.0000旋轉(zhuǎn)半徑:X: 0.1757Y: 0.1757主力矩與質(zhì)心的X-Y方向:I: 0.0001沿0.7071 0.7071J: 0.0001 沿-0.7071 0.70712、根據(jù)臨時墩建模及臨時

21、墩荷載分布編寫以下命令流，并在ANSYS中運行。命令流如下：fini/clea/prep7et,1,beam44mp,ex,1,2.1e11mp,prxy,1,0.3mp,dens,1,7850 TOC o 1-5 h z r,1,0.0335,0.0033,0.0033,0.45,0.45,!Ar,2,0.0124,0.0004,0.0004,0.25,0.25,!Bk,1,2,-3.5,0k,2,2,-3.5,6k,3,2,-3.5,9.3333k,4,2,-3.5,12.6666k,5,2,-3.5,16k,6,2,-3.5,19.3333k,7,2,-3.5,22.6666k,8,2,

22、-3.5,26k,9,2,-3.5,28k,10,-2,-3.5,0k,11,-2,-3.5,6k,12,-2,-3.5,9.3333k,13,-2,-3.5,12.6666k,14,-2,-3.5,16k,15,-2,-3.5,19.3333k,16,-2,-3.5,22.6666k,17,-2,-3.5,26k,18,-2,-3.5,28k,19,2,0,0k,20,2,0,6k,21,2,0,9.3333k,22,2,0,12.6666k,23,2,0,16k,24,2,0,19.3333k,25,2,0,22.6666k,26,2,0,26k,27,2,0,28k,28,-2,0,0k

23、,29,-2,0,6k,30,-2,0,9.3333k,31,-2,0,12.6666k,32,-2,0,168Z9Z 9999.胃 餌餌.6191 9999.U 餌餌.69 0 次 9Z 9999.胃 餌餌.6191 9999.U 餌餌.69 0 次 9Z 9999.胃 餌餌61倡 寸 I IZ 。寸。I IZ 。 。 I 0Z 。 。 IOPPU。* I+TI W95OP*OPPU。* I+TI 咨削Top*OPPU。* I+TI sn&dp* oppu。* I+TI 9W6ITOP* oppu。* I+TI UOITOP*oppu。* I+2I8Tdp*寸 S9O86OISSSSSS 寸

24、寸（NS 寸 ir）9r-86Oi（N 寸寸寸寸寸寸寸寸 SSSl,5,23l,6,23l,6,25l,8,25l,8,26l,20,38l,21,38l,21,40l,23,40l,23,41l,23,42l,25,42l,25,44l,26,44l,11,29l,11,30l,13,30l,13,32l,14,32l,15,32l,15,34l,17,34l,17,35l,29,47l,30,47l,30,49l,32,49l,32,50l,32,51l,34,51l,34,53l,35,53l,2,11l,3,11l,3,13l,5,13l,5,14l,5,15l,7,15l,7,17l

25、,8,17l,20,29l,21,29l,21,31l,23,31l,23,32l,23,33l,25,33l,25,35l,26,35l,38,47l,39,47l,39,49l,41,49l,41,50l,41,51l,43,51l,43,53l,44,53l,9,18l,9,27l,45,27l,45,54l,36,18l,36,27l,36,54lsel,s,1,48,1,latt,1,1,1,lsel,s,49,118,1,latt,1,2,1,allsel,alllesize,all,3,1lmesh,alld,1,alld,26,alld,51,alld,76,alld,101,

26、alld,126,allacel,10,F,23,FZ,-1892500F,48,FZ,-1892500F,75,FZ,-1892500F, 98, FZ, -1892500F, 123, FZ, -1892500F, 148, FZ, -1892500finish/soluPSTRES,ON solve finish! CALCULATE PRESTRESS EFFECTS/SOLUANTYPE,BUCKLEBUCOPT,LANB,1! BUCKLING ANALYSIS! USE BLOCK LANCZOS EIGENVALUEEXTRACTION METHOD, EXTRACT 1 MO

27、DEMXPAND,1SOLVE! EXPAND 1 MODE SHAPE/post1 pldisp,1 SET,1 PLDISP,0 PRRSOL,!顯示一階變形!支反力/SOLUANTYPE,BUCKLEBUCOPT,LANB,2! BUCKLING ANALYSIS! USE BLOCK LANCZOS EIGENVALUE EXTRACTIONMETHOD, EXTRACT 2 MODEMXPAND,2SOLVE! EXPAND 2 MODE SHAPE/post1 pldisp,2 SET,2 PLDISP,0 PRRSOL,!顯示二階變形!支反力etable,bar_i,smisc,2etable,bar_j,smisc,4etable,bar_k,ls,1etable,bar_l,ls,2!y方向力!x方向彎矩!軸力!剪力finishANSYSIANSYSANME1DENIS13:40:19單元分布圖節(jié)點分布圖網(wǎng)格劃分(1) 一階變形4、運行結(jié)果a、變形圖如下如內(nèi)力圖如下-660E4-08-.449E+08-.237E4-08-.251E4-07.187E4-08彎矩圖繞X軸彎矩圖繞Y軸支座反力輸出結(jié)果如下:PRINT REACTION SOLUTIONS PER NODE* POST1 TOTAL REACTION SOLUTION LISTING *LO