请教Midas Civil弯梁的建模问题

我建了一个弯梁的模型，两端节点采用双支座模拟，从节点都定义了局部坐标。运行之后，信息窗口中显示了以下信息：

MULTI-FRONTAL SOLVERAVAILABLE MEMORY =    1.4 GBYTES

ENTRY PHASE FOR RENUMBERING

ENTRY NUMBERING_EQN

ENTRY FORM_STIFF_MASS_LOAD

THE INDIVIDUAL ELEMENT STIFFNESS AND LOAD MATRICES WILL NOW BE FORMED.

ELEMENT NO. :     26  OF      26

ENTRY SOLUTION PHASE

ENTRY LOAD_BLOCK

TOTAL NUMBER OF VALID DOFS IN MODEL :     162

ENTRY ASSM_STIFF_LOAD ( FORM GLOBAL EQUILIBRIUM EQUATIONS IN BLOCKS )

ENTRY STATIC ANALYSIS

MULTI-FRONTAL SOLUTION HAS BEEN PERFORMED 90 % .

WARNING : NODE NO.     14  RZ  DOF MAY BE SINGULAR.WARNING : EQUATION NO.        84

WARNING : NODE NO.     14  DX  DOF MAY BE SINGULAR.

WARNING : EQUATION NO.        79

WARNING : NODE NO.     14  DY  DOF MAY BE SINGULAR.

WARNING : EQUATION NO.        80

WARNING : NODE NO.     14  RY  DOF MAY BE SINGULAR.  

MULTI-FRONTAL SOLUTION HAS BEEN COMPLETED.       

DISPLACEMENT/FORCE/STRESS OUTPUT.WARNING : DISPLACEMENT DZ AT NODE NO.      1 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      1 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      1 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.      2 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      2 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      2 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.      3 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      3 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      3 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.      4 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      4 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      4 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.      5 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      5 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      5 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.      6 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      6 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      6 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.      7 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      7 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      7 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.      8 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      8 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      8 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.      9 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.      9 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.      9 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     10 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     10 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     10 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     11 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     11 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     11 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     12 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     12 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     12 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     13 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     13 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     13 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     14 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     14 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     14 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     15 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     15 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     15 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     16 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     16 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     16 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     17 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     17 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     17 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     18 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     18 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     18 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     19 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     19 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     19 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     20 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     20 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     20 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     21 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     21 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     21 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     22 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     22 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     22 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     23 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     23 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     23 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     24 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     24 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     24 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     25 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     25 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     25 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     26 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     26 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     26 IS ABNORMAL.

WARNING : DISPLACEMENT DZ AT NODE NO.     27 IS ABNORMAL.

WARNING : DISPLACEMENT RX AT NODE NO.     27 IS ABNORMAL.

WARNING : DISPLACEMENT RY AT NODE NO.     27 IS ABNORMAL.  

ELEM. :     26 OF      26