Static Analysis With Non-liear Foundation

7/30/2019 Static Analysis With Non-liear Foundation

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Engineering Dynamics, Inc. Training 2011

Static Analysis with Non-Linear Foundation

Section 1 Create a PSI input data file

Step 1 Create a new folder and name it Static PSI, and then make it the current folder.

Copy SACINP.DAT and SEAINP.DAT files from Static directory to current folder.

Step 2 Create PSI input data file

Click-on Data file icon to launch Datagen program, and select Create new data file andclick-on OK to get the second window pop-up, as shown below; select Pile Soil Interaction as

the analysis type and make sure the unit is Metric KN. Click-on Select and skip the Title and

get next step to define the analysis options..

Step 3 Define analysis options

Leave default options for both General and Output Options, and click Next.


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Step 4 Select the results to plot

Click-on No to LCSEL and PILSUP cards. Click on Yes to PLTRQ card to get Plot Option

window and select the options shown below.

Click-on Next and select Include all piles in plot, select all load cases to be plotted. Do not

define plot size and specify pile section data until get Pile Group definition.

Step 5 Define pile group


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Click-on More to add the segments or groups, and click-on Next to finish the pile group

definition.

Step 6 Define the piles

Define the pile head joint, batter joint, pile group ID and soil ID as shown in following picture

for the four piles, and repeat to define conductors.

Click-on More to add a pile and click-on Next to finish the pile definition and get to next

step.

ClickheretoaddmoregroupsClickheretogettonext


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Step 7 Define T-Z data type

The picture on right shows the type of axial

data can be defined in SACS system. The

data for the training is T-Z data. Select

User Defined T-Z Curves and click-on

Next to get next step.

Step 8 Define T-Z axial header data

The header data defines the total number of soil strata, Z-factor, Soil ID and the maximum data

point of any T-Z curves. The data should be got from the Design Specification for this training,

and is shown in following picture.


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This step defines the soil stratum information followed by soil data of each stratum (Step 10), the

data needs to be defined is number of point of the curve, stratum location and T factors;

following picture shows the stratum definition of the top soil.

Step 10 Define the soil data of the stratum

The data is from the spec document, thepicture on right shows the soil at 0.0m

location.

Repeat Step 9 and 10 to enter all 8 soil T-Z

curves.

Step 11 Define end bearing data

The picture below will show up when finish the step 10. Click-on Yes to enter the Q-Z axial

header data.


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Define the Q-T axial header data shown in below picture, click-on Next to accept the data and

get to soil stratum data.

Define the soil stratum data as shown in following two pictures and repeat it for all the stratums.

Step 12 Torsional data

The torsional stiffness of the soil can be defined as linear spring, following two pictures gives the

detail of the input.


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The P-Y data input is similar to Axial T-Z data, follow the direction of Step 7 to 10 and get the

data from the soil report to finish the input.

Following two pictures show the soil type selection and P-Y header definition.

Following two pictures show the stratum and soil data definition at 0.0m location, repeat the

input to define all the P-Y soils at rest locations.

Save the file and name it PSIINP.DAT.

Section 2 Static analysis with PSI

Your current directory should have three input files: SEAINP.DAT containing the loading

condition, SACINP.DAT containing the model information includes the weight definition and

PSIINP.DAT containing the pile model information.


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Analysis subtype: Static analysis with Pile/Soil Interaction

Analysis options: selections are shown in the picture below

Step 2 Edit analysis options

Click-on to get the window shown below and makeselections as shown in the window, click-on OK when finish; Click-on to define the code option shown in below window on right:

Code option: API RP 2A 21th edition/AISC 9th edition


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Step 3 Define input files and run the analysis

Select the input files as shown in below window and check the output file names, click-on Run

Analysis Tab to run the analysis.


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Static analysis with PSI- 10

Section 3 Check the analysis results

Member code check results can be checked from post listing file or Postvue database, see below.

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PSI SAMPLE ANALYSIS DATE 12-FEB-2011 TIME 16:10:54 PST PAGE 158

SACS-IV MEMBER UNITY CHECK RANGE SUMMARY

GROUP III - UNITY CHECKS GREATER THAN 1.00 AND LESS THAN*****

MAXIMUM LOAD DIST AXIAL BENDING STRESS SHEAR FORCE SECOND-HIGHEST THIRD-HIGHEST

MEMBER GROUP COMBINED COND FROM STRESS Y Z FY FZ KLY/RY KLZ/RZ UNITY LOAD UNITY LOAD

ID UNITY CK NO. END N/MM2 N/MM2 N/MM2 KN KN CHECK COND CHECK COND

102P-202P PL1 1.438 STM1 0.0 -77.40 -114.13 111.13 -144.24 165.19 81.9 81.9 0.694 STM2 0.632 STM3

103P-203P PL1 1.396 STM3 0.0 -84.84 -134.10 13.98 -18.21 187.41 81.5 81.5 0.751 STM2 0.733 STM1

104P-204P PL1 1.636 STM2 0.0 -97.92 -140.61 -12.02 15.35 199.60 81.9 81.9 1.454 STM1 1.179 STM3

803L-8104 W01 1.065 OPR3 0.0 -5.42 -137.51 15.34 -5.14 230.24 18.9 64.6 1.002 OPR2 0.948 OPR1

804L-83FD W01 1.215 OPR3 0.0 0.01 -173.57 8.95 -3.79 241.85 18.9 64.6 1.189 OPR2 1.150 OPR1

8102-8103 W01 1.083 OPR3 5.0 -4.86 146.66 -7.75 -0.03 160.83 18.9 64.6 1.078 OPR2 1.077 OPR1

8103-802L W01 1.633 OPR1 5.0 -5.18 -221.15 -14.97 -5.99 -503.52 18.9 64.6 1.557 OPR2 1.489 OPR3

8104-8105 W01 1.327 OPR3 5.0 -5.42 182.97 -7.23 0.08 204.19 18.9 64.6 1.302 OPR2 1.280 OPR1

8105-804L W01 1.902 OPR1 5.0 -5.29 -265.76 -8.28 -3.11 -609.48 18.9 64.6 1.863 OPR2 1.821 OPR3

802L-804L W02 1.758 OPR3 10.0 -2.24 -178.44 -6.55 -1.14 -606.56 38.5 132.5 1.724 OPR2 1.613 OPR1

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Static analysis with PSI- 12

STM2 -12057.11 724.89 4315.2 0.90 24.80 0.013054 0.0 -147.36 -207.23 -1.10 21.56 -354.59 1.583

STM3 -8787.05 717.25 3853.9 0.66 21.46 0.011596 0.0 -107.39 184.87 -8.78 19.98 -292.47 1.292

PSI SAMPLE ANALYSIS DATE 12-FEB-2011 TIME 16:10:51 PSI PAGE 480

* * * P I L E M A X I M U M A X I A L C A P A C I T Y S U M M A R Y * * *

PILE GRP ********* PILE ********* ************** COMPRESSION ************* **************** TENSION ***************

JT PILEHEAD WEIGHT PEN. CAPACITY MAX. CRITICAL CONDITION CAPACITY MAX. CRITICAL CONDITION *MAXIMUM*

O.D. THK. (INCL. WT) LOAD LOAD LOAD SAFETY (INCL. WT) LOAD LOAD LOAD SAFETY UNITY LOAD

CM CM KN M KN KN KN CASE FACTOR KN KN KN CASE FACTOR CHECK CASE

101P PL1 106.68 2.50 177.4 40.0 -57792.1 -2139.6 -2139.6 OPR3 27.01 58144.3 5852.4 5852.4 STM2 9.94 0.15 STM2102P PL2 106.68 2.50 177.4 40.0 -57772.9 -9529.9 -9529.9 STM1 6.06 58125.1 3864.2 3864.2 STM3 15.04 0.25 STM1

103P PL1 106.68 2.50 177.4 40.0 -57792.1 -10445.9 -10445.9 STM3 5.53 58144.3 3287.9 3287.9 STM1 17.68 0.27 STM3

104P PL2 106.68 2.50 177.4 40.0 -57772.9 -12057.1 -12057.1 STM2 4.79 58125.1 0.0 0.0 OPR1 100.00 0.31 STM2

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Static Analysis With Non-liear Foundation

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