CivilFEM:拉压杆实例

实例描述

下图所示桁架,受集中荷载作用,螺栓孔洞面积3cm2,采用欧洲规范3,构件为L型钢,规格为120×120×12。

几何尺寸:

a=1.0m;

b=0.5m;

荷载:

P=300kN

命令流

FINISH
~CFCLEAR,,1 ! Not needed
! 标题
/TITLE,CivilFEM Example 0602. Tension and Compression
! CivilFEM Setup: Code & Units 选择规范和单位
~UNITS,,LENG,M
~UNITS,,TIME,S
~UNITS,,FORC,KN
~CODESEL,EC3,EC2,,,EC8! Eurocodes
/PREP7
! CivilFEM Preprocessor
! --------------------------------------------------
! Materials 定义材料
! Mat 1: Fe430
~CFMP,1,LIB,STEEL,EC3,Fe 430,0,0,0
! Element Types 定义单元类型
ET,1,LINK1 ! Type 1: 2D Spar
! Sections 定义截面
~SSECLIB,1,1,23,11 !L 120 x 120 x 12
! Code Properties 下面这段命令设置梁上开口的面积
~SECMDF,1,EC3PROP ,AHOLES ,,3e-004,0,0,0
! Beam & Shell properties
~BMSHPRO,1,BEAM,1,1,,,1,1,0, ! Beam Property
! Ansys Preprocessor
! --------------------------------------------------
! Nodes
N, 1 $ N,2,1 $ N,3,,-0.5
! Elements
E,1,2
E,3,2
EPLOT
/SOLU
! Ansys Solution
! --------------------------------------------------
! Displacements
D, 1,ALL
D, 3,ALL
! Apply Load
F,2,FY,-300
! Solve
SOLVE
/POST1
! CivilFEM Postprocessor
! --------------------------------------------------
! Read results
~CFSET,,1,1
! Plot axial forces
~PLLSFOR,F,X
! Eurocode No.3 Check in Tension 受拉承载力检验
~CHKSTL,TENSION
! List Tension Check Results 列表显示受拉承载力检查结果
~PRSTL,DETAILED,BOTH,1
! Plot Tension Check Results
~PLLSSTL,CRT_TOT ! Eurocode No.3 Criterium (Must be < 1.00)
! Eurocode No.3 Check in Compression
~CHKSTL,COMPRESS
! List Compression Check Results
~PRSTL,DETAILED,BOTH,2
! Plot Compression Check Results
~PLLSSTL,CRT_TOT ! Nsd/Nc.Rd (Must be < 1.00)

 

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说不定我这一生涓滴意念,侥幸汇成河,而且是一条大长河

7 条评论

  1. civilfem很不习惯我想要问下,为什么要捕捉截面呢?实体捕捉截面有什么作用吗? 其作用是什么呢? 普通ansys里面好像没有这一说,不理解请您解答一下麻烦了

    1. @邋遢大王 我现在已经不用CF了,原因有三:1、正版CF的推广很不好,学了一圈却很可能无法实际应用;2、ANSYS环境不好配置,安装成功14.5已经重装过系统,再弄个12实在是糟心;3、CF的用途十分有限,如果仅仅用于求个内力,ANSYS 经典的算法已经够用了

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