EX. UK-23 Spring Support Generation for a Slab on Grade

This example illustrates the usage of commands necessary to automatically generate spring supports for a slab on grade. The slab is subjected to pressure loading and analysis of the structure is performed.

This problem is installed with the program by default to C:\Users\Public\Public Documents\STAAD.Pro CONNECT Edition\Samples\Sample Models\UK\UK-23 Spring Support Generation for a Slab on Grade.STD when you install the program.

Example Problem No. 23

where:
• H = 43m, h1 = 2.83m, h2 = 2.67m, h3 = 2m
• V = 13.33m, v1 = 2.17m, v2 = 2m, v3 = 2.61m, v4 = 1.33m
`    STAAD SPACE SLAB ON GRADE`

Every STAAD input file has to begin with the word STAAD. The word SPACE signifies that the structure is a space frame and the geometry is defined through X, Y, and Z axes. The remainder of the words form a title to identify this project.

`    UNIT METER KNS`

The units for the data that follows are specified above.

```    JOINT COORDINATES
1 0.0 0.0 13.33
2 0.0 0.0 12.0
3 0.0 0.0  9.39
4 0.0 0.0  6.78
5 0.0 0.0  4.17
6 0.0 0.0  2.17
7 0.0 0.0  0.0
REPEAT ALL 3 2.83 0.0 0.0
REPEAT 3 2.67 0.0 0.0
REPEAT 5 2 0.0 0.0
REPEAT 3 2.67 0.0 0.0
REPEAT 3 2.83 0.0 0.0```

For joints 1 through 7, the joint number followed by the X, Y, and Z coordinates are specified above. The coordinates of these joints is used as a basis for generating 21 more joints by incrementing the X coordinate of each of these seven joints by 2.83 meters, three times. REPEAT commands are used to generate the remaining joints of the structure. The results of the generation may be visually verified using the STAAD graphical viewing facilities.

```    ELEMENT INCIDENCES
1 1 8 9 2 TO 6
REPEAT 16 6 7```

The incidences of element number 1 is defined and that data is used as a basis for generating the 2nd through the 6th element. The incidence pattern of the first six elements is then used to generate the incidences of 96 (= 16 x 6) more elements using the REPEAT command.

```    UNIT CM
ELEMENT PROPERTIES
1 TO 102 TH 14.0```

The thickness of elements 1 to 102 is specified as 14 cms following the command ELEMENT PROPERTIES.

```    UNIT MMS
DEFINE MATERIAL START
ISOTROPIC CONCRETE
E 21.0
POISSON 0.17
DENSITY 2.36158e-008
ALPHA 5e-006
DAMP 0.05
G 9.25
TYPE CONCRETE
STRENGTH FCU 0.0275
END DEFINE MATERIAL
CONSTANTS
MATERIAL CONCRETE ALL
UNIT METER```

The DEFINE MATERIAL command is used to specify material properties and the CONSTANT is used to assign the material to all members.

```    SUPPORTS
1 TO 126 ELASTIC MAT DIRECTION Y SUB 1570.```

The above command is used to instruct STAAD to generate supports with springs which are effective in the global Y direction. These springs are located at nodes 1 to 126. The subgrade modulus of the soil is specified as 1570 KN/cu.m. The program will determine the area under the influence of each joint and multiply the influence area by the subgrade reaction to arrive at the spring stiffness for the FY degree of freedom at the joint. See TR.27.3 Automatic Spring Support Generator for Foundations .

`    PRINT SUPP INFO`

This command will enable us to obtain the details of the support conditions which were generated using the earlier commands.

```    LOAD 1 WEIGHT OF MAT & EARTH
1 TO 102 PR GY –74.2```

The above data describe a static load case. A pressure load of 74.2 kN/sq.m. acting in the negative global Y direction is applied on all the 102 elements.

```    LOAD 2 'COLUMN LOAD-DL+LL'
1 2  FY -965.
8 9  FY -485.
5 FY -1373.
6 FY -2746.
22 23 FY -1824.
29 30 FY -912.
26 FY -2414.
27 FY -4828.
43 44 50 51 71 72 78 79 FY -1368.
47 54 82 FY -1175.
48 55 76 83 FY -2350.
92 93 FY -912.
99 100 FY -1824.
103 FY -2166.
104 FY -4333.
113 114 FY -485.
120 121 FY -965.
124 FY -1216.
125 FY -2431.```

Load case 2 consists of several joint loads acting in the negative global Y direction.

```    LOADING COMBINATION 101 TOTAL LOAD
1 1. 2 1. ```

A load combination case, identified with load case number 101, is specified above. It instructs STAAD to factor loads 1 and 2 by a value of 1.0 and then algebraically add the results.

`    PERFORM ANALYSIS`

The analysis is initiated using the above command.

```UNIT CM
PRINT JOINT DISPLACEMENTS LIST 33 56
PRINT ELEMENT STRESSES LIST 34 67```

Joint displacements for joints 33 and 56, and element stresses for elements 34 and 67, for load case 101, is obtained with the help of the above commands.

`    FINISH`

Input File

``````STAAD SPACE SLAB ON GRADE
UNIT METER KNS
JOINT COORDINATES
1 0.0 0.0 13.33
2 0.0 0.0 12.0
3 0.0 0.0 9.39
4 0.0 0.0 6.78
5 0.0 0.0 4.17
6 0.0 0.0  2.17
7 0.0 0.0  0.0
REPEAT ALL 3 2.83 0.0 0.0
REPEAT 3 2.67 0.0 0.0
REPEAT 5 2 0.0 0.0
REPEAT 3 2.67 0.0 0.0
REPEAT 3 2.83 0.0 0.0
ELEMENT INCIDENCES
1 1 8 9 2 TO 6
REPEAT 16 6 7
UNIT CM
ELEMENT PROPERTIES
1 TO 102 TH 14.0
UNIT MMS
DEFINE MATERIAL START
ISOTROPIC CONCRETE
E 21.0
POISSON 0.17
DENSITY 2.36158e-008
ALPHA 5e-006
DAMP 0.05
G 9.25
TYPE CONCRETE
STRENGTH FCU 0.0275
END DEFINE MATERIAL
CONSTANTS
MATERIAL CONCRETE ALL
UNIT METER
SUPPORTS
1 TO 126  ELASTIC MAT DIRECTION Y SUBGRADE 1570.
PRINT SUPP INFO
LOAD 1 'WEIGHT OF MAT & EARTH'
1 TO 102 PR GY -74.2
1 2   FY -965.
8 9   FY -485.
5     FY -1373.
6     FY -2746.
22 23 FY -1824.
29 30 FY -912.
26    FY -2414.
27    FY -4828.
43 44 50 51 71 72 78 79 FY -1368.
47 54 82    FY -1175.
48 55 76 83 FY -2350.
92 93       FY -912.
99 100      FY -1824.
103         FY -2166.
104         FY -4333.
113 114     FY -485.
120 121     FY -965.
124         FY -1216.
125         FY -2431.
1 1. 2 1.
PERFORM ANALYSIS
UNIT CM
PRINT JOINT DISPLACEMENTS LIST 33 56
PRINT ELEMENT STRESSES LIST 34 67
FINISH
``````

```                                                                  PAGE NO.    1
****************************************************
*                                                  *
*           Version  22.08.00.***                  *
*           Proprietary Program of                 *
*           Bentley Systems, Inc.                  *
*           Date=    OCT 19, 2021                  *
*           Time=    17:54: 0                      *
*                                                  *
*  Licensed to: Bentley Systems Inc                *
****************************************************
INPUT FILE: UK-23 Spring Support Generation for a Slab on Grade.STD
2. UNIT METER KNS
3. JOINT COORDINATES
4. 1 0.0 0.0 13.33
5. 2 0.0 0.0 12.0
6. 3 0.0 0.0 9.39
7. 4 0.0 0.0 6.78
8. 5 0.0 0.0 4.17
9. 6 0.0 0.0  2.17
10. 7 0.0 0.0  0.0
11. REPEAT ALL 3 2.83 0.0 0.0
12. REPEAT 3 2.67 0.0 0.0
13. REPEAT 5 2 0.0 0.0
14. REPEAT 3 2.67 0.0 0.0
15. REPEAT 3 2.83 0.0 0.0
16. ELEMENT INCIDENCES
17. 1 1 8 9 2 TO 6
18. REPEAT 16 6 7
19. UNIT CM
20. ELEMENT PROPERTIES
21. 1 TO 102 TH 14.0
22. UNIT MMS
23. DEFINE MATERIAL START
24. ISOTROPIC CONCRETE
25. E 21.0
26. POISSON 0.17
27. DENSITY 2.36158E-008
28. ALPHA 5E-006
29. DAMP 0.05
30. G 9.25
31. TYPE CONCRETE
32. STRENGTH FCU 0.0275
33. END DEFINE MATERIAL
34. CONSTANTS
35. MATERIAL CONCRETE ALL
36. UNIT METER
37. SUPPORTS
38. 1 TO 126  ELASTIC MAT DIRECTION Y SUBGRADE 1570.
SLAB ON GRADE                                            -- PAGE NO.    2
39. PRINT SUPP INFO
SUPP     INFO
SUPPORT INFORMATION (1=FIXED, 0=RELEASED)
-------------------
UNITS FOR SPRING CONSTANTS ARE KNS  METE DEGREES
JOINT   FORCE-X/   FORCE-Y/   FORCE-Z/   MOM-X/   MOM-Y/   MOM-Z/
KFX        KFY        KFZ       KMX      KMY      KMZ
1       1          0          1         0        1        0
0.0     1477.3        0.0      0.0      0.0      0.0
2       1          0          1         0        1        0
0.0     4376.5        0.0      0.0      0.0      0.0
3       1          0          1         0        1        0
0.0     5798.2        0.0      0.0      0.0      0.0
4       1          0          1         0        1        0
0.0     5798.2        0.0      0.0      0.0      0.0
5       1          0          1         0        1        0
0.0     5120.7        0.0      0.0      0.0      0.0
6       1          0          1         0        1        0
0.0     4631.9        0.0      0.0      0.0      0.0
7       1          0          1         0        1        0
0.0     2410.4        0.0      0.0      0.0      0.0
8       1          0          1         0        1        0
0.0     2954.7        0.0      0.0      0.0      0.0
9       1          0          1         0        1        0
0.0     8752.9        0.0      0.0      0.0      0.0
10       1          0          1         0        1        0
0.0    11596.5        0.0      0.0      0.0      0.0
11       1          0          1         0        1        0
0.0    11596.5        0.0      0.0      0.0      0.0
12       1          0          1         0        1        0
0.0    10241.3        0.0      0.0      0.0      0.0
13       1          0          1         0        1        0
0.0     9263.9        0.0      0.0      0.0      0.0
14       1          0          1         0        1        0
0.0     4820.8        0.0      0.0      0.0      0.0
15       1          0          1         0        1        0
0.0     2954.7        0.0      0.0      0.0      0.0
16       1          0          1         0        1        0
0.0     8752.9        0.0      0.0      0.0      0.0
17       1          0          1         0        1        0
0.0    11596.5        0.0      0.0      0.0      0.0
18       1          0          1         0        1        0
0.0    11596.5        0.0      0.0      0.0      0.0
19       1          0          1         0        1        0
0.0    10241.3        0.0      0.0      0.0      0.0
20       1          0          1         0        1        0
0.0     9263.9        0.0      0.0      0.0      0.0
21       1          0          1         0        1        0
0.0     4820.8        0.0      0.0      0.0      0.0
22       1          0          1         0        1        0
0.0     2871.1        0.0      0.0      0.0      0.0
SLAB ON GRADE                                            -- PAGE NO.    3
23       1          0          1         0        1        0
0.0     8505.5        0.0      0.0      0.0      0.0
24       1          0          1         0        1        0
0.0    11268.7        0.0      0.0      0.0      0.0
25       1          0          1         0        1        0
0.0    11268.7        0.0      0.0      0.0      0.0
26       1          0          1         0        1        0
0.0     9951.8        0.0      0.0      0.0      0.0
27       1          0          1         0        1        0
0.0     9002.0        0.0      0.0      0.0      0.0
28       1          0          1         0        1        0
0.0     4684.5        0.0      0.0      0.0      0.0
29       1          0          1         0        1        0
0.0     2787.6        0.0      0.0      0.0      0.0
30       1          0          1         0        1        0
0.0     8258.0        0.0      0.0      0.0      0.0
31       1          0          1         0        1        0
0.0    10940.9        0.0      0.0      0.0      0.0
32       1          0          1         0        1        0
0.0    10940.9        0.0      0.0      0.0      0.0
33       1          0          1         0        1        0
0.0     9662.3        0.0      0.0      0.0      0.0
34       1          0          1         0        1        0
0.0     8740.1        0.0      0.0      0.0      0.0
35       1          0          1         0        1        0
0.0     4548.2        0.0      0.0      0.0      0.0
36       1          0          1         0        1        0
0.0     2787.6        0.0      0.0      0.0      0.0
37       1          0          1         0        1        0
0.0     8258.0        0.0      0.0      0.0      0.0
38       1          0          1         0        1        0
0.0    10940.9        0.0      0.0      0.0      0.0
39       1          0          1         0        1        0
0.0    10940.9        0.0      0.0      0.0      0.0
40       1          0          1         0        1        0
0.0     9662.3        0.0      0.0      0.0      0.0
41       1          0          1         0        1        0
0.0     8740.1        0.0      0.0      0.0      0.0
42       1          0          1         0        1        0
0.0     4548.2        0.0      0.0      0.0      0.0
43       1          0          1         0        1        0
0.0     2437.9        0.0      0.0      0.0      0.0
44       1          0          1         0        1        0
0.0     7221.9        0.0      0.0      0.0      0.0
45       1          0          1         0        1        0
0.0     9568.1        0.0      0.0      0.0      0.0
46       1          0          1         0        1        0
0.0     9568.1        0.0      0.0      0.0      0.0
47       1          0          1         0        1        0
0.0     8450.0        0.0      0.0      0.0      0.0
48       1          0          1         0        1        0
0.0     7643.5        0.0      0.0      0.0      0.0
49       1          0          1         0        1        0
0.0     3977.6        0.0      0.0      0.0      0.0
50       1          0          1         0        1        0
0.0     2088.1        0.0      0.0      0.0      0.0
SLAB ON GRADE                                            -- PAGE NO.    4
51       1          0          1         0        1        0
0.0     6185.8        0.0      0.0      0.0      0.0
52       1          0          1         0        1        0
0.0     8195.4        0.0      0.0      0.0      0.0
53       1          0          1         0        1        0
0.0     8195.4        0.0      0.0      0.0      0.0
54       1          0          1         0        1        0
0.0     7237.7        0.0      0.0      0.0      0.0
55       1          0          1         0        1        0
0.0     6546.9        0.0      0.0      0.0      0.0
56       1          0          1         0        1        0
0.0     3406.9        0.0      0.0      0.0      0.0
57       1          0          1         0        1        0
0.0     2088.1        0.0      0.0      0.0      0.0
58       1          0          1         0        1        0
0.0     6185.8        0.0      0.0      0.0      0.0
59       1          0          1         0        1        0
0.0     8195.4        0.0      0.0      0.0      0.0
60       1          0          1         0        1        0
0.0     8195.4        0.0      0.0      0.0      0.0
61       1          0          1         0        1        0
0.0     7237.7        0.0      0.0      0.0      0.0
62       1          0          1         0        1        0
0.0     6546.9        0.0      0.0      0.0      0.0
63       1          0          1         0        1        0
0.0     3406.9        0.0      0.0      0.0      0.0
64       1          0          1         0        1        0
0.0     2088.1        0.0      0.0      0.0      0.0
65       1          0          1         0        1        0
0.0     6185.8        0.0      0.0      0.0      0.0
66       1          0          1         0        1        0
0.0     8195.4        0.0      0.0      0.0      0.0
67       1          0          1         0        1        0
0.0     8195.4        0.0      0.0      0.0      0.0
68       1          0          1         0        1        0
0.0     7237.7        0.0      0.0      0.0      0.0
69       1          0          1         0        1        0
0.0     6546.9        0.0      0.0      0.0      0.0
70       1          0          1         0        1        0
0.0     3406.9        0.0      0.0      0.0      0.0
71       1          0          1         0        1        0
0.0     2088.1        0.0      0.0      0.0      0.0
72       1          0          1         0        1        0
0.0     6185.8        0.0      0.0      0.0      0.0
73       1          0          1         0        1        0
0.0     8195.4        0.0      0.0      0.0      0.0
74       1          0          1         0        1        0
0.0     8195.4        0.0      0.0      0.0      0.0
75       1          0          1         0        1        0
0.0     7237.7        0.0      0.0      0.0      0.0
76       1          0          1         0        1        0
0.0     6546.9        0.0      0.0      0.0      0.0
77       1          0          1         0        1        0
0.0     3406.9        0.0      0.0      0.0      0.0
78       1          0          1         0        1        0
0.0     2437.9        0.0      0.0      0.0      0.0
SLAB ON GRADE                                            -- PAGE NO.    5
79       1          0          1         0        1        0
0.0     7221.9        0.0      0.0      0.0      0.0
80       1          0          1         0        1        0
0.0     9568.1        0.0      0.0      0.0      0.0
81       1          0          1         0        1        0
0.0     9568.1        0.0      0.0      0.0      0.0
82       1          0          1         0        1        0
0.0     8450.0        0.0      0.0      0.0      0.0
83       1          0          1         0        1        0
0.0     7643.5        0.0      0.0      0.0      0.0
84       1          0          1         0        1        0
0.0     3977.6        0.0      0.0      0.0      0.0
85       1          0          1         0        1        0
0.0     2787.6        0.0      0.0      0.0      0.0
86       1          0          1         0        1        0
0.0     8258.0        0.0      0.0      0.0      0.0
87       1          0          1         0        1        0
0.0    10940.9        0.0      0.0      0.0      0.0
88       1          0          1         0        1        0
0.0    10940.9        0.0      0.0      0.0      0.0
89       1          0          1         0        1        0
0.0     9662.3        0.0      0.0      0.0      0.0
90       1          0          1         0        1        0
0.0     8740.1        0.0      0.0      0.0      0.0
91       1          0          1         0        1        0
0.0     4548.2        0.0      0.0      0.0      0.0
92       1          0          1         0        1        0
0.0     2787.6        0.0      0.0      0.0      0.0
93       1          0          1         0        1        0
0.0     8258.0        0.0      0.0      0.0      0.0
94       1          0          1         0        1        0
0.0    10940.9        0.0      0.0      0.0      0.0
95       1          0          1         0        1        0
0.0    10940.9        0.0      0.0      0.0      0.0
96       1          0          1         0        1        0
0.0     9662.3        0.0      0.0      0.0      0.0
97       1          0          1         0        1        0
0.0     8740.1        0.0      0.0      0.0      0.0
98       1          0          1         0        1        0
0.0     4548.2        0.0      0.0      0.0      0.0
99       1          0          1         0        1        0
0.0     2871.1        0.0      0.0      0.0      0.0
100       1          0          1         0        1        0
0.0     8505.5        0.0      0.0      0.0      0.0
101       1          0          1         0        1        0
0.0    11268.7        0.0      0.0      0.0      0.0
102       1          0          1         0        1        0
0.0    11268.7        0.0      0.0      0.0      0.0
103       1          0          1         0        1        0
0.0     9951.8        0.0      0.0      0.0      0.0
104       1          0          1         0        1        0
0.0     9002.0        0.0      0.0      0.0      0.0
105       1          0          1         0        1        0
0.0     4684.5        0.0      0.0      0.0      0.0
106       1          0          1         0        1        0
0.0     2954.7        0.0      0.0      0.0      0.0
SLAB ON GRADE                                            -- PAGE NO.    6
107       1          0          1         0        1        0
0.0     8752.9        0.0      0.0      0.0      0.0
108       1          0          1         0        1        0
0.0    11596.5        0.0      0.0      0.0      0.0
109       1          0          1         0        1        0
0.0    11596.5        0.0      0.0      0.0      0.0
110       1          0          1         0        1        0
0.0    10241.3        0.0      0.0      0.0      0.0
111       1          0          1         0        1        0
0.0     9263.9        0.0      0.0      0.0      0.0
112       1          0          1         0        1        0
0.0     4820.8        0.0      0.0      0.0      0.0
113       1          0          1         0        1        0
0.0     2954.7        0.0      0.0      0.0      0.0
114       1          0          1         0        1        0
0.0     8752.9        0.0      0.0      0.0      0.0
115       1          0          1         0        1        0
0.0    11596.5        0.0      0.0      0.0      0.0
116       1          0          1         0        1        0
0.0    11596.5        0.0      0.0      0.0      0.0
117       1          0          1         0        1        0
0.0    10241.3        0.0      0.0      0.0      0.0
118       1          0          1         0        1        0
0.0     9263.9        0.0      0.0      0.0      0.0
119       1          0          1         0        1        0
0.0     4820.8        0.0      0.0      0.0      0.0
120       1          0          1         0        1        0
0.0     1477.3        0.0      0.0      0.0      0.0
121       1          0          1         0        1        0
0.0     4376.5        0.0      0.0      0.0      0.0
122       1          0          1         0        1        0
0.0     5798.2        0.0      0.0      0.0      0.0
123       1          0          1         0        1        0
0.0     5798.2        0.0      0.0      0.0      0.0
124       1          0          1         0        1        0
0.0     5120.7        0.0      0.0      0.0      0.0
125       1          0          1         0        1        0
0.0     4631.9        0.0      0.0      0.0      0.0
126       1          0          1         0        1        0
0.0     2410.4        0.0      0.0      0.0      0.0
************ END OF DATA FROM INTERNAL STORAGE ************
40. LOAD 1 'WEIGHT OF MAT & EARTH'
42. 1 TO 102 PR GY -74.2
45. 1 2   FY -965.
46. 8 9   FY -485.
47. 5     FY -1373.
48. 6     FY -2746.
SLAB ON GRADE                                            -- PAGE NO.    7
49. 22 23 FY -1824.
50. 29 30 FY -912.
51. 26    FY -2414.
52. 27    FY -4828.
53. 43 44 50 51 71 72 78 79 FY -1368.
54. 47 54 82    FY -1175.
55. 48 55 76 83 FY -2350.
56. 92 93       FY -912.
57. 99 100      FY -1824.
58. 103         FY -2166.
59. 104         FY -4333.
60. 113 114     FY -485.
61. 120 121     FY -965.
62. 124         FY -1216.
63. 125         FY -2431.
65. 1 1. 2 1.
66. PERFORM ANALYSIS
P R O B L E M   S T A T I S T I C S
-----------------------------------
NUMBER OF JOINTS        126  NUMBER OF MEMBERS       0
NUMBER OF PLATES        102  NUMBER OF SOLIDS        0
NUMBER OF SURFACES        0  NUMBER OF SUPPORTS    126
Using 64-bit analysis engine.
SOLVER USED IS THE IN-CORE ADVANCED MATH SOLVER
TOTAL      PRIMARY LOAD CASES =     2, TOTAL DEGREES OF FREEDOM =     378
TOTAL LOAD COMBINATION  CASES =     1  SO FAR.
67. UNIT CM
69. PRINT JOINT DISPLACEMENTS LIST 33 56
JOINT    DISPLACE LIST     33
SLAB ON GRADE                                            -- PAGE NO.    8
JOINT DISPLACEMENT (CM   RADIANS)    STRUCTURE TYPE = SPACE
------------------
JOINT  LOAD   X-TRANS   Y-TRANS   Z-TRANS   X-ROTAN   Y-ROTAN   Z-ROTAN
33  101     0.0000  -10.5679    0.0000   -0.0259    0.0000    0.0552
56  101     0.0000  -12.1989    0.0000    0.0660    0.0000    0.0288
************** END OF LATEST ANALYSIS RESULT **************
70. PRINT ELEMENT STRESSES LIST 34 67
ELEMENT  STRESSES LIST     34
SLAB ON GRADE                                            -- PAGE NO.    9
ELEMENT STRESSES    FORCE,LENGTH UNITS= KNS  CM
----------------
STRESS = FORCE/UNIT WIDTH/THICK, MOMENT = FORCE-LENGTH/UNIT WIDTH
ELEMENT  LOAD       SQX        SQY          MX          MY          MXY
VONT       VONB         SX          SY          SXY
TRESCAT    TRESCAB
34    101        -0.02       -0.03        2.22       17.75       41.14
2.24        2.24        0.00        0.00        0.00
2.56        2.56
TOP : SMAX=       1.59 SMIN=      -0.98 TMAX=       1.28 ANGLE= 50.3
BOTT: SMAX=       0.98 SMIN=      -1.59 TMAX=       1.28 ANGLE=-39.7
67    101         0.28        0.03       62.65       39.76       88.62
4.99        4.99        0.00        0.00        0.00
5.47        5.47
TOP : SMAX=       4.30 SMIN=      -1.17 TMAX=       2.74 ANGLE= 41.3
BOTT: SMAX=       1.17 SMIN=      -4.30 TMAX=       2.74 ANGLE=-48.7
**** MAXIMUM STRESSES AMONG SELECTED PLATES AND CASES ****
MAXIMUM       MINIMUM       MAXIMUM       MAXIMUM       MAXIMUM
PRINCIPAL     PRINCIPAL       SHEAR       VONMISES       TRESCA
STRESS        STRESS        STRESS        STRESS        STRESS
4.302792E+00 -4.302792E+00  2.735344E+00  4.990313E+00  5.470689E+00
PLATE NO.      67            67            67            67            67
CASE  NO.     101           101           101           101           101
********************END OF ELEMENT FORCES********************
71. FINISH
SLAB ON GRADE                                            -- PAGE NO.   10
*********** END OF THE STAAD.Pro RUN ***********
**** DATE= OCT 19,2021   TIME= 17:54: 1 ****
************************************************************