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标题: staad计算的结果疑问 [打印本页]

作者: 2008benben 时间: 2012-6-29 15:44 标题: staad计算的结果疑问

规范检验是AISC LRFD，  其中PNC值偏小，很奇怪，Pn=Ag*Fcr，根据下边的杆件参数，手算的计算结果偏差很大，
|                                                 Y       PROPERTIES |
  |*************                                     |       IN  CMS UNIT |
  |          *  |=============================| ===|===    ------------ |
  |MEMBER 642  *  |          UPT             |    |       AX=0.3354E+3 |
  |          *  | UP  G027                   |    | --Z  AY=0.1355E+3 |
  |DESIGN CODE *  |                            |    |       AZ=0.1387E+3 |
  | LRFD 2001  *  =============================== ===|===    PY=0.6154E+5 |
  |          *                                              PZ=0.6734E+5 |
  |          *  |<---LENGTH (M)=    7.16 --->|             RY=0.1908E+2 |
  |*************                                              RZ=0.2526E+2 |
  |                                                                         |
  |             213.1 (KNS-METRE)                                        |
  |PARAMETER       |                                     L100CAPACITIES |
  |IN KNS  CMS    |                                  L100 IN KNS METRE |
  |---------------  +                                        -------------|
  | KL/R-Y=  37.53  |                            L100                      PNC=0.2785E+4|
  | KL/R-Z=  28.34  +                         L100                         pnc=0.3017E+4|
  | UNL = 716.00  |L100                                                    PNT=0.7094E+4|
  | CB = 2.19  + L100             L100                            pnt=0.0000E+0|
  | PHIC  = 0.85  |                                                             MNZ=0.4351E+3|
  | PHIB  = 0.90  +    L100       L105                               mnz=0.2131E+3|
  | FYLD  =  23.50  |          L100L105                                  MNY=0.1302E+5|
  | NSF = 1.00  +---+---+---+---+---+---+---+---+---+---| mny=0.2203E-3|
  | DFF =    0.00  26.9                                     VN =0.8599E+3|
  | dff =    0.00             ABSOLUTE MZ ENVELOPE          vn =0.4653E+2|
  |                               (WITH LOAD NO.)                         |
  |                                                                         |
  |                   MAX FORCE/ MOMENT SUMMARY  (KNS-METRE)             |
  |                   -------------------------                         |
  |                                                                         |
  |             AXIAL    SHEAR-Y SHEAR-Z MOMENT-Y MOMENT-Z    |
  |                                                                         |
  |    VALUE 3016.7       46.5       7.0       47.0    213.1    |
  | LOCATION    0.0       0.0       0.0       0.0       7.2    |
  | LOADING    100       100       106       106       100    |
  |                                                                         |
  |**************************************************************************|
  |*                                                                      *|
  |*                      DESIGN SUMMARY  (KNS-METRE)                   *|
  |*                      --------------                               *|
  |*                                                                      *|
  |*    RESULT/    CRITICAL COND/    RATIO/       LOADING/          *|
  |       FX             MY          MZ          LOCATION          |
  |       ======================================================          |
  |       FAIL       LRFD-H1-1A-C    1.518          100             |

作者: 2008benben 时间: 2012-7-9 11:35

论坛里面没有高手么，这个结果谁帮我看看啊

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