1.0 Inplace analysis with psi (using sacs)

Thảo luận trong 'SACS SOFTWARE' bắt đầu bởi Song Ma, 28/9/13.

  1. Song Ma

    Song Ma Administrator

    Tham gia ngày:
    17/5/12
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    In-place analysis requires the combined Jacket and topsides model to be created in
    SACS using Preceed-Pro and DataGen modules. The steps are as follows:

    1. Define the basic Jacket framing using the Jacket wizard in Preceed-Pro which defines the leg batter, conductor spacing and leg and/or skirt pile details.
    2. Title this input file as ‘sacinp.*’ where * is the user-defined title. The file contains the model data, member properties defined using Section and Groups. It also contains all the load data, wind areas, Cd, Cm values and Marine growth.
    3. Define the Pile and soil properties are specified separately in the ‘psiinp.*’ file. The soil properties specified are attached from the joints specified as ‘PILEHD’ in fixity in the sacinp file. All soil properties should be defined in the order of axial, end bearing, torsional and lateral stiffness. An initial pile penetration depth needs to be assumed. This has to be specified in the PLGRUP card.
    4. Create the Joint Can check input file called ‘jcninp.*’ where the load cases for which the joint can unity check needs to be performed is specified in this file.
    5. Select ‘Linear Static with PSI Analysis’ option in the Runfile Wizard and select all the above 3 files in the appropriate sections and run the analysis.
    6. The output file ‘psilst’ specifies the pile capacities mobilised versus the capacity required and gives a pile UC ratio value.
    7. Open the ‘psvdb’ folder and check the member UC ratios graphically. The joint can UC ratios need to be checked in the ‘psilst’ file.
    LARSEN & TOUBRO LIMITED
    STEP BY STEP GUIDE FOR JACKET DESIGN USING SACS SOFTWARE

    RESEARCH & DEVELOPMENT
    ENGINEERING & CONSTRUCTION DIVISION
    LARSEN & TOUBRO LIMITED
     
    Chỉnh sửa cuối: 28/9/13

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