• RE: Loss of support

    Vul Thang
    Vul Thang
    Yes, you can also perform Gap analysis. You can define the initial Gap spacing on columns 51-55 on the MEMB2 line. A gap element with internal displacement less than the initial gap spacing is assumed to be zero force (no load) members. So, you do not…
    • over 1 year ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • Know-it-all I

    Bentley Communities
    Answer 15 questions that are verified as helpful or correct.
    • over 6 years ago
    • Bentley Communities
    • Bentley Communities
  • RE: Wave Response - Stress Recovery Method

    Geoff McDonald
    Geoff McDonald
    In the WVROPT line columns 19-20, you can select ES for the equivalent static option or EI for the enhanced modal acceleration method. I believe that the MR option is the modal acceleration method but I am not sure on that one because it has essentially…
    • over 4 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: 2 levels of super-element in SACS

    Geoff McDonald
    Geoff McDonald
    Kasiphon, You can do it, but it takes some manual editing of the Utilities > Create Superelement runfile. You need to specify the SUBIN variable before your run SACWPRE (Preprocessor which uses the superelement input file to build the stiffness matrix…
    • over 4 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Free-field soil displacement due to lateral spreading load during earthquake

    Wilson John
    Wilson John
    An interesting question, Kasiphon ! I can think of two options; one with shifted P-y curves with the data given by your Geotechnical Engineer. secondly using P-y curve with constant P's for all y values. These we use for mud slide modeling. I prefer the…
    • over 4 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Free-field soil displacement due to lateral spreading load during earthquake

    Geoff McDonald
    Geoff McDonald
    Kasiphon, The only way to model soil liquefaction in SACS would be to use the soil liquefaction input in the PSI analysis when linearizing your piles. The PSI soil liquefaction input essentially reduces the p-y and q-z curves to approximate the liquefaction…
    • over 4 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Soil Liquefaction potential

    Geoff McDonald
    Geoff McDonald
    Kasiphon, I have created a commentary section for the PSI manual discussing soil liquefaction. It will be released in SACS 12.1, but I have posted it here as well so you can take a look at it: https://communities.bentley.com/products/offshore/w/wiki…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: keyboard and mouse shortcuts

    Swarup Selvaraj
    Swarup Selvaraj
    Dear Jack, I have listed below few shortcuts I have found useful while working with SACS version 5.6: Ctrl + N / Alt + 1 : New Model Ctrl + O / Alt + 2 : Open Alt + 3 : Browse for Postvue Directory F2 / Ctrl + S / Alt + 4 : Save Ctrl + P…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
    • Nurfaiza Mat
  • RE: S-N curve above water level

    Wen Meng
    Wen Meng
    Hi Kasiphon, For S-N curves from HSE, WJ and ISO, water depth and mudline elevation are specified in FTOPT2 to classify member type If NS3 option is chosen, an additional "SNT1" command is required to specify related parameters such as waterline…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: S-N curve above water level

    Wen Meng
    Wen Meng
    Yes, splash zone elevation defined in FTOPT2 is only valid for API thickness dependent curve(AXX, AXP). Yes, for other S-N curves options which differentiating members above/below waterline, SACS use waterline to classify members. Splash zone elevation…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Selecting modes with mode number higher than 100 for steady state deterministic wave analysis

    Geoff McDonald
    Geoff McDonald
    Try using the MODSEL line your wave response input file to select the modes that you want to analyze. Enter the number of modes you want to analyze on the WROPT line (100) and then enter modes (100-199) on the MODSEL line. You can use multiple MODSEL…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Wave Response steady state solution plots

    Wen Meng
    Wen Meng
    Essentially "general wave response" and " Extreme wave" are the same type of analysis for deterministic wave response. The "extreme wave" was further designed for user who want to perform post structure check due to an extreme wave response. It allows…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
    • Eduard Hendriksen
  • RE: Wave Response steady state solution plots

    Wen Meng
    Wen Meng
    Hi Eduard, 1. Currently SACS only support single PSJO line for joint displacement plot, but you can output all joints displacement in test format. In wave response analysis option definition, choose to generate a postvue database. Open this Psvdb file…
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
    • Eduard Hendriksen
  • Effective Elastic Buckling Length of Segmented Members

    Nurfaiza Mat
    Nurfaiza Mat
    Determination of Critical Loads by Successive Approximation Introduction The method of determining critical buckling loads by successive approximation is to derive two approximate deflected shapes of the beam based upon the expected buckled shape…
    • 6 months ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower - Wiki
    • Kaundinya Veluri
  • RE: Dynamic Wind Analysis

    Geoff McDonald
    Geoff McDonald
    The method you have described in section 2 is incorrect and will result in incorrect results. SACS is calculating the dynamic response and the static response due to the wind loading although there is a bit more going on than just combing the modal response…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
    • Quoc Tinh Tran