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1、三跨连续梁桥的分析fini/clear/title,threespancontinousbridge/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,-0.125k,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,-5.9143,0.0036k,12,-6.4,0.025!下底
2、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,9,1,12,1,0,0,49/8,100!上顶板关键点50m位置kgen,2,1,12,1,0,0,50,900!上顶板关键点50+34.5m位置kgen,9,901,912,1,0,0,34.5/8,100!上顶板关键点50+35m位置kgen,2,901,912,1,0,0,35,900!板的高度由1.85m变至3.875mc1=0.000843399!49m边跨的二次抛物线系数c2=0.001701323!
3、34.5m边跨的二次抛物线系数*dim,x1,array,8!定义边跨的八分点位置*do,i,1,8,1x1(i)=i*49/8*enddo*dim,x2,array,8!定义中跨的八分点位置*do,i,1,8,1x2(i)=i*34.5/8*enddo!下底板边跨（49m）八分点关键点的y坐标位置*dim,yb,array,8*do,i,1,8,1yb(i)=c1*x1(i)**2*enddo!下底板中跨（34.5m）八分点关键点的y坐标位置*dim,ym,array,8*do,i,1,8,1ym(i)=-c2
4、*(x2(i)-34.5)**2+2.025*enddo!生成下底边跨（49m）八分点的关键点*do,i,1,8,1kgen,2,13,14,1,0,-yb(i),x1(i),i*100*enddo!下底板50m处关键点kgen,2,813,814,1,0,0,1,100!生成下底中跨（50＋34.5m）八分点的关键点*do,i,1,8,1kgen,2,913,914,1,0,ym(i),x2(i),i*100*enddo!边墩处的横隔板位置!1，2，3，4～14为0m处横隔板位置的所有关键点!51，52，53～
5、54为-0.5m处横隔板位置的所有关键点kgen,2,1,14,1,0,,-0.5,50!中墩处的横隔板位置!801，802，803，804～814为49m处横隔板位置的所有关键点!901，902，903～904为50m处横隔板位置的所有关键点!连成板面!上顶板，板厚0.25met,1,shell63mp,dens,1,2500mp,ex,1,3.5e10mp,prxy,1,0.1667r,1,0.25*do,i,0,16,1a,1+i*100,1+(i+1)*100,2+(i+1)*100,2+i*100*en
6、ddoa,1,51,52,2aatt,1,1,1asel,none!上顶板的加腋，板厚0.375mr,2,0.375*do,i,0,16,1a,2+i*100,2+(i+1)*100,3+(i+1)*100,3+i*100*enddoa,2,52,53,3aatt,1,2,1asel,none!肋板与翼缘交接处，板厚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+
7、i*100*enddoa,3,53,54,4a,4,54,55,5aatt,1,3,1asel,none!翼缘厚度渐变，下面定义翼缘板的渐变厚度*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)*0.3/3.4+0.2h
8、d(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)!定义渐变的翼缘厚度*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+1aat
