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1、第1章大型有限元軟件ANSYS簡(jiǎn)介 586.1施工過(guò)程仿真分析1.材料、實(shí)常數(shù)和單元類型定義/TITLE,Mechanicalanalysisonrailwaytunnel1ndlining!確定分析標(biāo)題/NOPR!菜單過(guò)濾設(shè)置/PMETH,OFF,0KEYW,PR_SET,1KEYW,PR_STRUC,1!保留結(jié)構(gòu)分析部分菜單/COM,/COM,PreferencesforGUIfilteringhavebeensettodisplay:/COM,Structural/PREP7!進(jìn)入前處理器ET,1,PLANE42!設(shè)置實(shí)體單元類型KEYOPT,1
2、,1,0KEYOPT,1,2,0KEYOPT,1,3,2!設(shè)置為平面應(yīng)變模式KEYOPT,1,5,0KEYOPT,1,6,0ET,2,PLANE42!設(shè)置實(shí)體單元類型KEYOPT,1,1,0KEYOPT,1,2,0KEYOPT,1,3,2!設(shè)置為平面應(yīng)變模式KEYOPT,1,5,0KEYOPT,1,6,0ET,3,BEAM3!設(shè)置梁?jiǎn)卧愋蚏,1,0.25,1.5e-3,0.25,,,,!設(shè)置梁?jiǎn)卧獛缀纬?shù)MPTEMP,,,,,,,,MPTEMP,1,0MPDATA,EX,1,,0.8e9!輸入彈性模量(圍巖)MPDATA,PRXY,1,,0.38!輸入泊松比(圍巖)
3、MPDATA,DENS,1,,2000!輸入密度(圍巖)TB,DP,1,,,!采用DP準(zhǔn)則進(jìn)行彈塑性分析TBMODIF,1,1,0.2e6!輸入凝聚力(圍巖)TBMODIF,1,2,30!輸入摩擦角(圍巖)TBMODIF,1,3,MPTEMP,,,,,,,,MPTEMP,1,0MPDATA,EX,2,,3.2e9!輸入彈性模量(加固圈)MPDATA,PRXY,2,,0.32!輸入泊松比(加固圈)第1章大型有限元軟件ANSYS簡(jiǎn)介 58MPDATA,DENS,2,,2200!輸入密度(加固圈)TB,DP,2,,,!采用DP準(zhǔn)則TBMODIF,1,1,0.
4、5e6!輸入凝聚力(加固圈)TBMODIF,1,2,35!輸入摩擦角(加固圈)TBMODIF,1,3,MPDATA,EX,3,,27.5e9!輸入彈性模量(噴射混凝土)MPDATA,PRXY,3,,0.2!輸入泊松比(噴射混凝土)MPDATA,DENS,3,,2500!輸入密度(噴射混凝土)SAVE!保存數(shù)據(jù)庫(kù)1.建立幾何模型創(chuàng)建關(guān)鍵點(diǎn)。K,1,0,0,,!創(chuàng)建計(jì)算區(qū)域輪廓線關(guān)鍵點(diǎn)K,2,65,-22.3,,K,3,-65,-22.3,,K,4,65,37.1,,K,5,19.6,37.1,,K,6,-65,-11.8,,K,7,-44.6,-22.3,,K,8,-4
5、4.6,0,,K,9,65,0,,K,10,15,-22.3,,K,11,-15,-22.3,,K,12,-15,17.1,,K,13,15,34.4,,K,14,-15,1.169,,!創(chuàng)建隧道輪廓線關(guān)鍵點(diǎn),上半圓圓心K,15,-18.408,0.22,,!左下拱腳圓心K,16,-15.022,7.887,,!仰拱圓心K,17,0,25.742,,K,18,0,-22.3,,K,27,-11.636,0.22,,!右下拱腳圓心SAVE!保存數(shù)據(jù)創(chuàng)建線。Circle,14,5.4!畫(huà)上半圓Circle,15,1.9!畫(huà)左下拱腳圓Circle,27,1.9!畫(huà)右下拱腳圓
6、LDELE,5,6,1!刪除左右下拱腳圓的部分線LDELE,8,11,1LOVLAP,7,3!作疊加布爾運(yùn)算LOVLAP,12,4LDELE,6,10,2LDELE,7LDELE,13,16,3NUMMRG,ALL,,,,LOW!合并所有元素第1章大型有限元軟件ANSYS簡(jiǎn)介 58NUMCMP,ALL!壓縮所有編號(hào)FLST,2,3,4,ORDE,3!作加運(yùn)算FITEM,2,4FITEM,2,5FITEM,2,6LCOMB,P51X,,0FLST,2,3,4,ORDE,3!作加運(yùn)算FITEM,2,3FITEM,2,7FITEM,2,9LCOMB,P51X
7、,,0NUMMRG,ALL,,,,LOW!合并所有元素NUMCMP,ALL!壓縮所有編號(hào)circle,16,10.178!畫(huà)仰拱圓LOVLAP,3,7!作疊加布爾運(yùn)算LOVLAP,4,8LDELE,19!刪除部分線LDELE,5,7,1LDELE,10,11,1LDELE,14,16,2FLST,2,4,4,ORDE,4!做線加布爾運(yùn)算FITEM,2,9FITEM,2,12FITEM,2,-13FITEM,2,15LCOMB,P51X,,0FLST,2,4,4,ORDE,4!做線加布爾運(yùn)算FITEM,2,3FITEM,2,17FITEM,2,-18F