• PSI input

    Nurfaiza Mat
    Nurfaiza Mat
    For those PSI input created in SACS 14.3 and older, user will get 'SYSTEM ERROR' when they run the analysis using the later versions. Reasons: We have added the new options to PSI since SACS14.3 on input line “SOIL LATERAL HEAD” after the remarks. Normally…
    • 1 month ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower - Wiki
  • psi

    Tushar Kumar
    Tushar Kumar
    *** ERROR - THE FOLLOWING CARD IS NOT RECOGNIZED KKTYP= PLOP PLSE PLGR PILE SOIL KKTYP= PLLO TITL AXLO PLSP SPRI KKTYP= TABR PSIO LOAD PLTR PLTP KKTYP= PLTL PLTS END PLST PLOD KKTYP= PLCA DEPL LCSE PILS PHSP KKTYP= LODF LTDF SCOU JCHAR= I am getting…
    • 4 months ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • SACS PSI program

    Hassan Yassaee
    Hassan Yassaee
    I am trying to use SACS PSI program for a single pile but i kept getting error so I started useding problem 2 of SACS manual as input but get totally different result & a singularity in matrix & warning despite manual out put does not indicate the program…
    • over 3 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • PSI Convergence for Lateral Loaded Sction Piles

    Sergio Costa
    Sergio Costa
    Is there any limitations regarding OD/Length ratio for the PSI convergence? I'm experiencing a problem and cannot figure why for the exactly same soil data, with 25m of length, a OD = 3851mm pile converges and the other with OD = 5000 mm does not…
    • over 3 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • PSI Convergence for Stiff soils

    Ravi Varma
    Ravi Varma
    I am encountering the "System Error " error while I am running inplace analysis using PSI. In the lst file I see a number of warnings saying "PILE STIFFNESS CONNECTING JOINT 102P IS NEGATIVE OR ZERO IN THE DY-RZ DOF FORCE COMPARISONS" and error saying…
    • over 3 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • SACS SIG Virtual Workshop: Bentley Offshore – September 12, 2018 – You're Invited!

    Patsy Gant
    Patsy Gant
    Learn how to perform a PSI analysis with Gap elements using Collapse at the next Bentley Offshore Special Interest Group virtual workshop on Wednesday, September 12, 2018 at 10 a.m. EDT. Register today ! Connect with industry colleagues and Bentley…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF I MOSES I SACS I OpenWindPower Announcements Forum
  • Soil Liquefaction

    Nurfaiza Mat
    Nurfaiza Mat
    Introduction Soil liquefaction may occur when offshore foundations are subjected to seismic loading. The following equations are used to modify the P-Y and T-Z curves to simulate the effects of soil liquefaction. Soil Liquefaction The soil behavior…
    • 1 month ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower - Wiki
  • Model Gap Elements with PSI using Collapse

    Geoff McDonald
    Geoff McDonald
    Introduction Pile Structure Interaction (PSI) is a program which models and analyzes the non-linear behavior of the soil for a pile supported structure. Gap is a program which models non-linear one way elements in the structure. Occasionally, analyses…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower - Wiki
  • SACS SIG Virtual Workshop: Bentley Offshore – May 9, 2018 – You're Invited!

    Patsy Gant
    Patsy Gant
    Join Bentley's Geoff McDonald and industry colleagues for the next Bentley Offshore Special Interest Group (SIG) virtual workshop on Wednesday, May 9, at 10 a.m. EDT. Discover just how easy it is to automatically generate torsional stiffness curves for…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF I MOSES I SACS I OpenWindPower Announcements Forum
  • SACS SIG Virtual Workshop: Bentley Offshore - April 11, 2018 - You're Invited!

    Patsy Gant
    Patsy Gant
    Don't miss the next Bentley Offshore Special Interest Group (SIG) virtual workshop on Wednesday, April 11, at 10 a.m. EDT. Discover just how easy it is to automatically generate torsional stiffness curves for PSI in SACS. Register today ! This complimentary…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF I MOSES I SACS I OpenWindPower Announcements Forum
  • RE: Wave response Program

    Geoff McDonald
    Geoff McDonald
    1) The stiffness of the structure does not change. 2) The equivalent static load will include dynamic response of the structure. 3) The soil stiffness is non-linear and is dependent upon the load on the piles. The load used to linearize the piles…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Regarding pile stub creation in SACS

    Geoff McDonald
    Geoff McDonald
    I would not use the pile stub option to do this type of analysis. Instead try creating a pile superelement using the Create Pilehead Super Element analysis. This analysis will convert the pile soil interaction input file (psiinp) into a linearized superelement…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: PSI Module - Analytical model for foundation

    Geoff McDonald
    Geoff McDonald
    Ishwarya, The number of pile increments is set on the PSIOPT line in columns 62-64. The default value is 100. This information is available on the PSIOPT line information in the PSI manual. Regards, Geoff
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: SACS Static Analysis with PSI errors

    Saravanan Ravichandran
    Saravanan Ravichandran
    Enrico, It is difficult to pin point the reason for this error without looking at your input file and model. However from the information you provided, it seems you didn't define PL1 in pile group list. I would suggest you to refer SACS sample models…
    • over 7 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: error 5247

    Saravanan Ravichandran
    Saravanan Ravichandran
    Please check if TABR exists in Listing File. If not, it means program failed when it tried to generate TABR. You can enter TABR into a PSI file from anther analysis to fix the problem. Bottom line is TABR option is not working in your psi and you may…
    • over 7 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: foundation superelements for various purposes

    Geoff McDonald
    Geoff McDonald
    The pair of forces are for the X and Y components of the pilehead stiffness as they are calculated independently. Refer to section 2.5.1 of the PSI manual. You want to linearize the piles using the loading that will be closest to the actual loading…
    • over 7 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • PSI ANALYSIS

    dae wook
    dae wook
    Hi I create a SACS model of a jacket, and I want to analysis PSI module. The pile is a double pile, outside tube(1219x30t), inside tube(965x30t), and the pile is full of grouting. How to model in the PSI? Thanks
    • over 7 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Checking data input files...

    Geoff McDonald
    Geoff McDonald
    With seastate input files, you can import them into your SACS input file using File-> Import-> Import Seastate and then running the Check Model option. PSI does not have the same feature, but a good way to check PSI is to run the Polot Soil Data utility…
    • over 7 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • (2012.08.22) SACS Linear Analysis with PSI Webinar

    Bill Genemaras
    Bill Genemaras
    This webinar was originally presented on August 22nd, 2012. You can view the recording online in the On-Demand Video Library ( Click Here ). The following are the product-related questions and corresponding answers from the webinar. Q : Does the conductor…
    • over 8 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower - Wiki