# V. AISC N690 1994 Pipe Section With SLC

Verify the design of a pipe section used for a beam member per the AISC N690 1994 code.

## References

Gere, J. M. and S. P. Timoshenko. 1984. Mechanics of Materials, 2nd Edition. Boston, MA: PWS Publishers. p.238.

## Details

The 10 ft long span is a propped cantilever which is free to move axially at the fixed end. The beam is subject to the following four different load cases:
1. a 10 kip axial tension force,
2. a 10 kip axial compression force,
3. a uniformly distributed load of 0.3 kip/ft in the Global Y directions, the member selfweight (acts in Global Y), and the tension load from case 1
4. a uniformly distributed load of 0.3 kip/ft in the Global Y directions, the member selfweight (acts in Global Y), and the compression load from case 2

The member is Pipe 5-Sched. 40 (standard) pipe section with Grade A36 steel. The self-weight is 14.6 lbs/ft.

## Validation

Slenderness Ratio

The slenderness ratio is the same about either local z or y axes: KL/r = 120 in / 1.888 in = 63.56 < 300, OK

Axial Tension

From section Q1.5.1.1, the allowable tensile stress:

The actual tensile stress from load case 1:

Stress ratio = 2.49 / 21.6 = 0.115, hence OK.

Axial Compression

Allowable compressive stress per Cl Q1.9.2.3:

$OD t = 5.56 0.24 = 23.17 < 3,300 F y = 3,300 36 = 91.67$
$C c = 2 π 2 E F y = 126.1$

Since Kl/r < Cc, per eq. Q1.5-1, the allowable axial compressive stress:

The actual compressive stress from load case 2:

Stress ratio = 2.49 / 17.08 = 0.146, hence OK.

Bending

Section is compact per Cl Q1.5.1.4.1: $O D t = 23.17 < 3,300 F y = 91.67$

Allowable bending stress about both axes: Fb = 0.66×Fy = 23.76 ksi

Moment due to load case 3 or 4 on a propped cantilever (ref. AISC Steel Construction Manual):

Actual bending stress about the major axis:

(actual bending about the minor axis: $f by = 0$ )

Stress ratio: 9.17 / 23.76 = 0.386, hence OK.

Combined Bending and Axial Tension

Interaction per Cl Q1.6.2 in load case 3 (tension + bending):

 $f a SFT × 0.6 F y + f b z SMZ × F b z = 2.49 1.3 × 21.6 + 9.17 1.4 × 23.76 = 0.364$ (Eq. Q1.6-1b)

Combined Bending and Axial Compression

Interaction per Cl Q1.6 in load case 4 (compression + bending):

 $f a F a = 0.145 < 0.15$ (Eq. Q1.6-2)
$f a SFC × F a + f b y SMY × F b y + f b z SMZ × F b z = 2.49 1.3 × 17.08 + 0 1.4 × 23.76 + 9.17 1.4 × 23.76 = 0.388$

Shear

Actual shear (at supports):

Shear area (calculated as per Gere & Timoshenko reference):

$A z = π 4 r 2 4 - r 1 4 × 2 r 2 - r 1 2 3 r 2 3 - r 2 3$
where
 $r 1$ = the inner radius of the pipe = 5.56 / 2 - 0.24 = 2.54 in $r 2$ = the outer radius of the pipe = 5.56 / 2 = 2.78 in

Thus, the shear area along both axes = 2.008 in2.

(shear stress in major axis = 0)

The allowable shear stress:

Stress ratio in Y (minor axis): 0.98/14.4 = 0.068, hence OK.

## Results

Table 1. Comparison of results
Slenderness ratio 63.56 63.55 negligible
Actual axial tensile stress (ksi) 2.49 2.49 none
Allowable axial tensile stress (ksi) 21.6 21.6 none
Tensile stress ratio (LC1) 0.115 0.115 none
Actual axial compressive stress (ksi) 2.49 2.49 none
Allowable axial compressive stress (ksi) 17.08 17.08 none
Compressive stress ratio (LC2) 0.146 0.146 none
Allowable bending stress (ksi) 23.76 23.8 negligible
Actual bending stress (ksi) 9.17 9.15 negligible
Combined axial tension and bending stress ratio (LC3) 0.364 0.363 negligible
Combined axial compression and bending stress ratio (LC4) 0.388 0.386 negligible
Allowable shear stress (ksi) 14.4 14.4 none
Actual shear stress (ksi) 0.98 0.97 negligible
Shear stress ratio, Y 0.068 0.067 negligible

The file C:\Users\Public\Public Documents\STAAD.Pro CONNECT Edition\Samples\ Verification Models\09 Steel Design\US\AISC\AISC N690 1994 Pipe Section With SLC.std is typically installed with the program.

STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 05-Apr-19
END JOB INFORMATION
INPUT WIDTH 79
SET SHEAR
UNIT FEET KIP
JOINT COORDINATES
1 0 0 0; 2 10 0 0;
MEMBER INCIDENCES
1 1 2;
DEFINE MATERIAL START
ISOTROPIC STEEL
E 4.176e+006
POISSON 0.3
DENSITY 0.489024
ALPHA 1.2e-005
DAMP 0.03
END DEFINE MATERIAL
UNIT INCHES KIP
MEMBER PROPERTY AMERICAN
1 TABLE ST PIPS50
UNIT FEET KIP
CONSTANTS
MATERIAL STEEL ALL
SUPPORTS
1 PINNED
2 FIXED BUT FX
2 FX 10
2 FX -10
SELFWEIGHT Y -1
1 UNI GY -0.3
2 FX 10
SELFWEIGHT Y -1
1 UNI GY -0.3
2 FX -10
PRINT MEMBER PROPERTIES ALL
UNIT INCHES KIP
*
PARAMETER 1
CODE AISC N690 1994
CB 1 ALL
CMY 1 ALL
CMZ 1 ALL
FYLD 36 ALL
FU 58 ALL
KY 1 ALL
KZ 1 ALL
MAIN 200 ALL
NSF 1 ALL
RATIO 1 ALL
TMAIN 300 ALL
TRACK 2 ALL
UNB 30 ALL
UNT 30 ALL
CT 0.75 ALL
CHECK CODE ALL
*
PARAMETER 2
CODE AISC N690 1994
CB 1 ALL
CMY 1 ALL
CMZ 1 ALL
FYLD 36 ALL
FU 58 ALL
KY 1 ALL
KZ 1 ALL
MAIN 200 ALL
NSF 1 ALL
RATIO 1 ALL
TMAIN 300 ALL
TRACK 2 ALL
UNB 30 ALL
UNT 30 ALL
CT 0.75 ALL
CHECK CODE ALL
*
PARAMETER 3
CODE AISC N690 1994
CB 1 ALL
CMY 1 ALL
CMZ 1 ALL
FYLD 36 ALL
FU 58 ALL
KY 1 ALL
KZ 1 ALL
MAIN 200 ALL
NSF 1 ALL
RATIO 1 ALL
SMZ 1.4 ALL
SMY 1.4 ALL
SFT 1.3 ALL
SFC 1.3 ALL
TMAIN 300 ALL
TRACK 2 ALL
UNB 30 ALL
UNT 30 ALL
CT 0.75 ALL
CHECK CODE ALL
*
PARAMETER 4
CODE AISC N690 1994
CB 1 ALL
CMY 1 ALL
CMZ 1 ALL
FYLD 36 ALL
FU 58 ALL
KY 1 ALL
KZ 1 ALL
MAIN 200 ALL
NSF 1 ALL
RATIO 1 ALL
SMZ 1.4 ALL
SMY 1.4 ALL
SFT 1.3 ALL
SFC 1.3 ALL
TMAIN 300 ALL
TRACK 2 ALL
UNB 30 ALL
UNT 30 ALL
CT 0.75 ALL
CHECK CODE ALL
*
PARAMETER 5
CODE AISC N690 1994
CB 1 ALL
CMY 1 ALL
CMZ 1 ALL
FYLD 36 ALL
FU 58 ALL
KY 1 ALL
KZ 1 ALL
MAIN 200 ALL
NSF 1 ALL
RATIO 1 ALL
SMZ 1.4 ALL
SMY 1.4 ALL
SFT 1.3 ALL
SFC 1.3 ALL
TMAIN 300 ALL
TRACK 2 ALL
UNB 30 ALL
UNT 30 ALL
CT 0.75 ALL
CHECK CODE ALL
FINISH


 STEEL DESIGN
STAAD SPACE                                              -- PAGE NO.    6
STAAD.PRO CODE CHECKING - (  ANSI N690-1994)   v1.0
********************************************
|--------------------------------------------------------------------------|
|                                                    Y        PROPERTIES   |
|*************                                       |        IN INCH UNIT |
|            *  |=============================|   ==| |==     ------------ |
|MEMBER   1  *  |  AISC SECTIONS              |     | |       AX =   4.01  |
|            *  | ST  PIPS50                  |     | |  --Z  AY =   2.02  |
|DESIGN CODE *  |                             |     | |       AZ =   2.02  |
|ANSI N690-94*  ===============================   ==| |==     SY =   5.14  |
|            *                                                SZ =   5.14  |
|            *  |&lt;---LENGTH (FT)=   10.00 --->|               RY =   1.89  |
|*************                                                RZ =   1.89  |
|                                                                          |
|                  0.0 (KIP-FEET)                                          |
|PARAMETER        |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  STRESSES     |
|IN KIP  INCH     |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  IN KIP  INCH |
|---------------  +L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  -------------|
| KL/R-Y=  63.55  |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FA  =  21.60 |
| KL/R-Z=  63.55  +L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  fa  =   2.49 |
| UNL   =  30.00  |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FCZ =  23.76 |
| CB    =   1.00  +L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FTZ =  23.76 |
| CMY   =   1.00  |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FCY =  23.76 |
| CMZ   =   1.00  +L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FTY =  23.76 |
| FYLD  =  36.00  |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  fbz =   0.00 |
| NSF   =   1.00  +---+---+---+---+---+---+---+---+---+---|   fby =   0.00 |
| DFF   =   0.00   0.0                                        Fey =  36.98 |
| dff=      0.00               ABSOLUTE MZ ENVELOPE           Fez =  36.98 |
| (KL/R)max =  63.55              (WITH LOAD NO.)             FV  =  14.40 |
|                                                             fv  =   0.00 |
|                                                                          |
|                      MAX FORCE/ MOMENT SUMMARY  (KIP-FEET)               |
|                      -------------------------                           |
|                                                                          |
|                AXIAL      SHEAR-Y    SHEAR-Z    MOMENT-Y    MOMENT-Z     |
|                                                                          |
|      VALUE     -10.0         0.0        0.0         0.0         0.0      |
|   LOCATION       0.0         0.0        0.0         0.0         0.0      |
|                                                                          |
|**************************************************************************|
|*                                                                        *|
|*                         DESIGN SUMMARY  (KIP-FEET)                     *|
|*                         --------------                                 *|
|*                                                                        *|
|         FX              MY             MZ           LOCATION             |
|        ======================================================            |
|          PASS        ANSI Q1.6-3      0.115              1               |
|         10.00 T          0.00         0.00             0.00              |
|*                                                                        *|
|**************************************************************************|
|                                                                          |
STAAD SPACE                                              -- PAGE NO.    7
ALL UNITS ARE - KIP  INCH (UNLESS OTHERWISE Noted)
FX            MY             MZ       LOCATION
=======================================================================
|--------------------------------------------------------------------------|
STAAD SPACE                                              -- PAGE NO.    8
70. *
72. PARAMETER 2
73. CODE AISC N690 1994
74. CB 1 ALL
75. CMY 1 ALL
76. CMZ 1 ALL
77. FYLD 36 ALL
78. FU 58 ALL
79. KY 1 ALL
80. KZ 1 ALL
81. MAIN 200 ALL
82. NSF 1 ALL
83. RATIO 1 ALL
84. TMAIN 300 ALL
85. TRACK 2 ALL
86. UNB 30 ALL
87. UNT 30 ALL
88. CT 0.75 ALL
89. CHECK CODE ALL
STEEL DESIGN
STAAD SPACE                                              -- PAGE NO.    9
STAAD.PRO CODE CHECKING - (  ANSI N690-1994)   v1.0
********************************************
|--------------------------------------------------------------------------|
|                                                    Y        PROPERTIES   |
|*************                                       |        IN INCH UNIT |
|            *  |=============================|   ==| |==     ------------ |
|MEMBER   1  *  |  AISC SECTIONS              |     | |       AX =   4.01  |
|            *  | ST  PIPS50                  |     | |  --Z  AY =   2.02  |
|DESIGN CODE *  |                             |     | |       AZ =   2.02  |
|ANSI N690-94*  ===============================   ==| |==     SY =   5.14  |
|            *                                                SZ =   5.14  |
|            *  |&lt;---LENGTH (FT)=   10.00 --->|               RY =   1.89  |
|*************                                                RZ =   1.89  |
|                                                                          |
|                  0.0 (KIP-FEET)                                          |
|PARAMETER        |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  STRESSES     |
|IN KIP  INCH     |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  IN KIP  INCH |
|---------------  +L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  -------------|
| KL/R-Y=  63.55  |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FA  =  17.08 |
| KL/R-Z=  63.55  +L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  fa  =   2.49 |
| UNL   =  30.00  |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FCZ =  23.76 |
| CB    =   1.00  +L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FTZ =  23.76 |
| CMY   =   1.00  |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FCY =  23.76 |
| CMZ   =   1.00  +L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  FTY =  23.76 |
| FYLD  =  36.00  |L0 L0  L0  L0  L0  L0  L0  L0  L0  L0  L0  fbz =   0.00 |
| NSF   =   1.00  +---+---+---+---+---+---+---+---+---+---|   fby =   0.00 |
| DFF   =   0.00   0.0                                        Fey =  36.98 |
| dff=      0.00               ABSOLUTE MZ ENVELOPE           Fez =  36.98 |
| (KL/R)max =  63.55              (WITH LOAD NO.)             FV  =  14.40 |
|                                                             fv  =   0.00 |
|                                                                          |
|                      MAX FORCE/ MOMENT SUMMARY  (KIP-FEET)               |
|                      -------------------------                           |
|                                                                          |
|                AXIAL      SHEAR-Y    SHEAR-Z    MOMENT-Y    MOMENT-Z     |
|                                                                          |
|      VALUE      10.0         0.0        0.0         0.0         0.0      |
|   LOCATION       0.0         0.0        0.0         0.0         0.0      |
|                                                                          |
|**************************************************************************|
|*                                                                        *|
|*                         DESIGN SUMMARY  (KIP-FEET)                     *|
|*                         --------------                                 *|
|*                                                                        *|
|         FX              MY             MZ           LOCATION             |
|        ======================================================            |
|          PASS        ANSI Q1.6-2      0.146              2               |
|         10.00 C          0.00         0.00             0.00              |
|*                                                                        *|
|**************************************************************************|
|                                                                          |
STAAD SPACE                                              -- PAGE NO.   10
ALL UNITS ARE - KIP  INCH (UNLESS OTHERWISE Noted)
FX            MY             MZ       LOCATION
=======================================================================
|--------------------------------------------------------------------------|
STAAD SPACE                                              -- PAGE NO.   11
90. *
92. PARAMETER 3
93. CODE AISC N690 1994
94. CB 1 ALL
95. CMY 1 ALL
96. CMZ 1 ALL
97. FYLD 36 ALL
98. FU 58 ALL
99. KY 1 ALL
100. KZ 1 ALL
101. MAIN 200 ALL
102. NSF 1 ALL
103. RATIO 1 ALL
104. SMZ 1.4 ALL
105. SMY 1.4 ALL
106. SFT 1.3 ALL
107. SFC 1.3 ALL
108. TMAIN 300 ALL
109. TRACK 2 ALL
110. UNB 30 ALL
111. UNT 30 ALL
112. CT 0.75 ALL
113. CHECK CODE ALL
STEEL DESIGN
STAAD SPACE                                              -- PAGE NO.   12
STAAD.PRO CODE CHECKING - (  ANSI N690-1994)   v1.0
********************************************
|--------------------------------------------------------------------------|
|                                                    Y        PROPERTIES   |
|*************                                       |        IN INCH UNIT |
|            *  |=============================|   ==| |==     ------------ |
|MEMBER   1  *  |  AISC SECTIONS              |     | |       AX =   4.01  |
|            *  | ST  PIPS50                  |     | |  --Z  AY =   2.02  |
|DESIGN CODE *  |                             |     | |       AZ =   2.02  |
|ANSI N690-94*  ===============================   ==| |==     SY =   5.14  |
|            *                                                SZ =   5.14  |
|            *  |&lt;---LENGTH (FT)=   10.00 --->|               RY =   1.89  |
|*************                                                RZ =   1.89  |
|                                                                          |
|                  3.9 (KIP-FEET)                                          |
|PARAMETER        |                                       L3  STRESSES     |
|IN KIP  INCH     |                                           IN KIP  INCH |
|---------------  +                                           -------------|
| KL/R-Y=  63.55  |                                   L3      FA  =  21.60 |
| KL/R-Z=  63.55  +               L3                          fa  =   2.49 |
| UNL   =  30.00  |           L3      L3                      FCZ =  23.76 |
| CB    =   1.00  +       L3              L3                  FTZ =  23.76 |
| CMY   =   1.00  |   L3                          L3          FCY =  23.76 |
| CMZ   =   1.00  +                                           FTY =  23.76 |
| FYLD  =  36.00  |L0                         L0              fbz =   9.15 |
| NSF   =   1.00  +---+---+---+---+---+---+---+---+---+---|   fby =   0.00 |
| DFF   =   0.00  -0.2                                        Fey =  36.98 |
| dff=      0.00               ABSOLUTE MZ ENVELOPE           Fez =  36.98 |
| (KL/R)max =  63.55              (WITH LOAD NO.)             FV  =  14.40 |
|                                                             fv  =   0.97 |
|                                                                          |
|                      MAX FORCE/ MOMENT SUMMARY  (KIP-FEET)               |
|                      -------------------------                           |
|                                                                          |
|                AXIAL      SHEAR-Y    SHEAR-Z    MOMENT-Y    MOMENT-Z     |
|                                                                          |
|      VALUE     -10.0         2.0        0.0         0.0         3.9      |
|   LOCATION       0.0        10.0        0.0         0.0        10.0      |
|                                                                          |
|**************************************************************************|
|*                                                                        *|
|*                         DESIGN SUMMARY  (KIP-FEET)                     *|
|*                         --------------                                 *|
|*                                                                        *|
|         FX              MY             MZ           LOCATION             |
|        ======================================================            |
|          PASS        ANSI Q1.6-3      0.364              3               |
|         10.00 T          0.00         3.92            10.00              |
|*                                                                        *|
|**************************************************************************|
|                                                                          |
STAAD SPACE                                              -- PAGE NO.   13
ALL UNITS ARE - KIP  INCH (UNLESS OTHERWISE Noted)
FX            MY             MZ       LOCATION
=======================================================================
|--------------------------------------------------------------------------|
STAAD SPACE                                              -- PAGE NO.   14
114. *
116. PARAMETER 4
117. CODE AISC N690 1994
118. CB 1 ALL
119. CMY 1 ALL
120. CMZ 1 ALL
121. FYLD 36 ALL
122. FU 58 ALL
123. KY 1 ALL
124. KZ 1 ALL
125. MAIN 200 ALL
126. NSF 1 ALL
127. RATIO 1 ALL
128. SMZ 1.4 ALL
129. SMY 1.4 ALL
130. SFT 1.3 ALL
131. SFC 1.3 ALL
132. TMAIN 300 ALL
133. TRACK 2 ALL
134. UNB 30 ALL
135. UNT 30 ALL
136. CT 0.75 ALL
137. CHECK CODE ALL
STEEL DESIGN
STAAD SPACE                                              -- PAGE NO.   15
STAAD.PRO CODE CHECKING - (  ANSI N690-1994)   v1.0
********************************************
|--------------------------------------------------------------------------|
|                                                    Y        PROPERTIES   |
|*************                                       |        IN INCH UNIT |
|            *  |=============================|   ==| |==     ------------ |
|MEMBER   1  *  |  AISC SECTIONS              |     | |       AX =   4.01  |
|            *  | ST  PIPS50                  |     | |  --Z  AY =   2.02  |
|DESIGN CODE *  |                             |     | |       AZ =   2.02  |
|ANSI N690-94*  ===============================   ==| |==     SY =   5.14  |
|            *                                                SZ =   5.14  |
|            *  |&lt;---LENGTH (FT)=   10.00 --->|               RY =   1.89  |
|*************                                                RZ =   1.89  |
|                                                                          |
|                  3.9 (KIP-FEET)                                          |
|PARAMETER        |                                       L4  STRESSES     |
|IN KIP  INCH     |                                           IN KIP  INCH |
|---------------  +                                           -------------|
| KL/R-Y=  63.55  |                                   L4      FA  =  17.08 |
| KL/R-Z=  63.55  +               L4                          fa  =   2.49 |
| UNL   =  30.00  |           L4      L4                      FCZ =  23.76 |
| CB    =   1.00  +       L4              L4                  FTZ =  23.76 |
| CMY   =   1.00  |   L4                          L4          FCY =  23.76 |
| CMZ   =   1.00  +                                           FTY =  23.76 |
| FYLD  =  36.00  |L0                         L0              fbz =   9.15 |
| NSF   =   1.00  +---+---+---+---+---+---+---+---+---+---|   fby =   0.00 |
| DFF   =   0.00  -0.2                                        Fey =  36.98 |
| dff=      0.00               ABSOLUTE MZ ENVELOPE           Fez =  36.98 |
| (KL/R)max =  63.55              (WITH LOAD NO.)             FV  =  14.40 |
|                                                             fv  =   0.97 |
|                                                                          |
|                      MAX FORCE/ MOMENT SUMMARY  (KIP-FEET)               |
|                      -------------------------                           |
|                                                                          |
|                AXIAL      SHEAR-Y    SHEAR-Z    MOMENT-Y    MOMENT-Z     |
|                                                                          |
|      VALUE      10.0         2.0        0.0         0.0         3.9      |
|   LOCATION       0.0        10.0        0.0         0.0        10.0      |
|                                                                          |
|**************************************************************************|
|*                                                                        *|
|*                         DESIGN SUMMARY  (KIP-FEET)                     *|
|*                         --------------                                 *|
|*                                                                        *|
|         FX              MY             MZ           LOCATION             |
|        ======================================================            |
|          PASS        ANSI Q1.6-2      0.387              4               |
|         10.00 C          0.00         3.92            10.00              |
|*                                                                        *|
|**************************************************************************|
|                                                                          |
STAAD SPACE                                              -- PAGE NO.   16
ALL UNITS ARE - KIP  INCH (UNLESS OTHERWISE Noted)
FX            MY             MZ       LOCATION
=======================================================================
|--------------------------------------------------------------------------|
STAAD SPACE                                              -- PAGE NO.   17
138. *
140. PARAMETER 5
141. CODE AISC N690 1994
142. CB 1 ALL
143. CMY 1 ALL
144. CMZ 1 ALL
145. FYLD 36 ALL
146. FU 58 ALL
147. KY 1 ALL
148. KZ 1 ALL
149. MAIN 200 ALL
150. NSF 1 ALL
151. RATIO 1 ALL
152. SMZ 1.4 ALL
153. SMY 1.4 ALL
154. SFT 1.3 ALL
155. SFC 1.3 ALL
156. TMAIN 300 ALL
157. TRACK 2 ALL
158. UNB 30 ALL
159. UNT 30 ALL
160. CT 0.75 ALL
161. CHECK CODE ALL
STEEL DESIGN
STAAD SPACE                                              -- PAGE NO.   18
STAAD.PRO CODE CHECKING - (  ANSI N690-1994)   v1.0
********************************************
|--------------------------------------------------------------------------|
|                                                    Y        PROPERTIES   |
|*************                                       |        IN INCH UNIT |
|            *  |=============================|   ==| |==     ------------ |
|MEMBER   1  *  |  AISC SECTIONS              |     | |       AX =   4.01  |
|            *  | ST  PIPS50                  |     | |  --Z  AY =   2.02  |
|DESIGN CODE *  |                             |     | |       AZ =   2.02  |
|ANSI N690-94*  ===============================   ==| |==     SY =   5.14  |
|            *                                                SZ =   5.14  |
|            *  |&lt;---LENGTH (FT)=   10.00 --->|               RY =   1.89  |
|*************                                                RZ =   1.89  |
|                                                                          |
|                  3.9 (KIP-FEET)                                          |
|PARAMETER        |                                       L3  STRESSES     |
|IN KIP  INCH     |                                           IN KIP  INCH |
|---------------  +                                           -------------|
| KL/R-Y=  63.55  |                                   L3      FA  =  17.08 |
| KL/R-Z=  63.55  +               L3                          fa  =   2.49 |
| UNL   =  30.00  |           L3      L3                      FCZ =  23.76 |
| CB    =   1.00  +       L3              L3                  FTZ =  23.76 |
| CMY   =   1.00  |   L3                          L3          FCY =  23.76 |
| CMZ   =   1.00  +                                           FTY =  23.76 |
| FYLD  =  36.00  |L0                         L0              fbz =   9.15 |
| NSF   =   1.00  +---+---+---+---+---+---+---+---+---+---|   fby =   0.00 |
| DFF   =   0.00  -0.2                                        Fey =  36.98 |
| dff=      0.00               ABSOLUTE MZ ENVELOPE           Fez =  36.98 |
| (KL/R)max =  63.55              (WITH LOAD NO.)             FV  =  14.40 |
|                                                             fv  =   0.97 |
|                                                                          |
|                      MAX FORCE/ MOMENT SUMMARY  (KIP-FEET)               |
|                      -------------------------                           |
|                                                                          |
|                AXIAL      SHEAR-Y    SHEAR-Z    MOMENT-Y    MOMENT-Z     |
|                                                                          |
|      VALUE     -10.0         2.0        0.0         0.0         3.9      |
|   LOCATION       0.0        10.0        0.0         0.0        10.0      |
|                                                                          |
|**************************************************************************|
|*                                                                        *|
|*                         DESIGN SUMMARY  (KIP-FEET)                     *|
|*                         --------------                                 *|
|*                                                                        *|