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    Structure

    Comparison Between Gen & nGen

    BLOG Tips & Tutorials

    OVERVIEW

    Comparison between Gen & nGen has 10 classified sections such as Modeling Steps, RC Design, Design Code, Features, BIM, and Revit Interface.

     

    Let's look over the Modeling Step first!

     

    1. Pre Mode (Modeling Step)

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    SW

    nGen

    Gen

    Grid Reference

    (Grid-Based Modeling)

    O

    Δ

    DWG Reference

    (Drawing-Based Modeling)

    O

    Χ

    Recommended Size

    of Structure

    Low and Intermediate Story (Mid-low rise structure)

    All types (Provides specialized functions for High-rise)

    Materials

    Concrete

    Steel

    User Define

    Conc.

    Steel

    User Define

    Aluminum

    Plastic material

    Time-dependent material

    (For construction stage analysis)

     Sections

    Steel DB section

    Rectangular

    Circle

    Combined (for same materials)

    User Section

    Steel DB section

    Rectangular

    Circle

    Combined (for same materials)

    User Section

    Cold-formed steel section

    SRC

    Tapered

    Composite section (Steel beam + RC slab)

    Members

    Wall

    Column

    Beam

    Slab (+Drop panel & Column capital) brace

    Basement Wall

    Footing

    Pile

    Shell

    Opening

    Wall

    Column

    Beam

    Slab (+Drop panel & Column capital) brace

    -

    Footing (only Mat footing)

    Pile

    Shell

    -

    Composite beam

    SRC column

    Tapered beam

     

    Loads

    Point Load

    Line Load

    -

    Slab Load

    Floor Load

    Seismic (including RS) / Wind load

    Temperature Load

    Earth Pressure

    Imperfection Load

    Mass

    -

    Crane Load

    -

    Arbitrary Load

    Point Load

    Line Load

    -

    Pressure Load

    Floor Load

    Seismic (including RS) / Wind load

    Temperature Load

    Earth Pressure

    Imperfection Load

    Mass

    Pre Tension Load

    -

    Heat of Hydration

    Moving Load

    Dynamic load

     

     

     

    SW

    nGen

    Gen

    Boundary

    Conditions

    Supports

    Beam end release

    Plate end release

    Soil support (spring)

    Pile support (spring)

    Point / Line / Area spring

    General spring

    -

    Elastic / Rigid Link

    Diaphragm

    Beam end offset / Rigid zone

     

    Supports

    Beam end release

    Plate end release

    Soil support (spring)

    Pile support (spring)

    Point / Line / Area spring

    General spring

    General Link (with seismic control devices)

    Elastic / Rigid Link

    Diaphragm

    Beam end offset / Rigid zone

     

    ETC_01

    'Set' concept brought in

    -

    * When setting the analysis  model, it can create and perform multiple analysis models by selecting desired member/load/boundary condition

    Χ

    ETC_02

    Easy modeling for Multi Buildings

    Δ

    ETC_03

    Auto mesh & size control

    Δ

    (not able to revise size and shape for created mesh)

    ETC_03

    Body Element

    -

    * Flexible shape -creation & editing

     

    Χ

    ETC_04

    Flexible shape creation & editing (Sane as element-creation action in CAD)

     

    Node-based element creation and editing

     

    ETC_04

     Generate for Section offset

    (Automatic section-offset edition)

    -

    Align Section

    (Edits section-offset easily)

     Δ

    ETC_05

    Story & Plane modeling mode 

    (Supports 2D-based easy modeling and editing)

    Χ

    (Only based on 3D modeling)

     

     

     

    2. Analysis

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    SW

    nGen

    Gen

     Static Analysis

      O

    Pushover

    Analysis

     Χ

     O

    - Inelastic Hinge model

    -Fiber model

    Time History

    Analysis

     

    Χ

    O

    Cracked Section

    Analysis

    O

    Crack width 

    Displacement under cracked section

    P-Delta

    O

    Buckling

    O

    Eigenvalue

    (Modal)

    O

    Heat of Hydration

    Χ

    O

    Moving Load

    Χ

    O

    Geometry Nonlinear

    Χ

    O

    Material Nonlinear

    Χ

    O

    Construction Stage Analysis

    Χ

    O

    Settlement Analysis

    Χ

    O

    Direct Analysis

    O

    Χ

    Crane Analysis

    O

    Χ

    ETC_01

    Multi analysis

    (Define analysis cases)

    Χ

     
     

    3. RC Design

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    CODE

    nGen

    Gen

     ACI318-14

      O

    ACI318-11

    O

    ACI318-08

    O

    BS8110-1997

    O

    CP65 (Singapore)

    Χ

    HK-2004 (Hong Kong)

    Χ

    TS500-200 (Turkey)

    Χ

    Eurocode 2

    O

    Eurocode 2 (UK)

    O

    Χ

    Eurocode 2 (Ireland)

    Χ

    Eurocode 2 (Singapore)

    O

    O

    Eurocode 2 (Malaysia)

    O

    Χ

    Eurocode 2 (Hong Kong)

    Χ

    Eurocode 2 (Poland)

    O

    Χ

    Eurocode 2 (Sweden)

    O

    O

    NTC 2018

    O

    IS456:2000(India)

    Χ

    O

    TWN-USD100

    Χ

    O

    NSR-10(South America)

    Χ

    O

    ETC_01

    -

    ACI318-05, 02, 99, 95,89

    Provided additionally

     

     

     

     4. Steel Design

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    CODE nGen Gen

    AISC360-10 (LRFD)

    O

    AISC360-10 (ASD)

    AISC360-16 (LRFD)

    O

    AISC360-16 (ASD)

    O

    TSC2016 (LRFD)

    Χ 

    TSC2016 (ASD)

    Χ 

    BS5950

    O

    EC3 2006

    O

    EC3 2006 (UK)

    Χ

    EC3 2006 (Singapore)

    O O

    EC3 2006 (Malaysia)

    O Χ

    EC3 2006 (Poland)

    O

    EC3 2006 (Sweden)

    Χ O

    IS:800-2007 (India)

    Χ O

    TWN (LRFD)

    Χ O

    TWN (ASD)

    Χ

    O

     

     

     

    5. Design Code for Seismic Load

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    CODE nGen Gen

    TDY 2007 (Turkey)

    Χ

    TBDY 2018 (Turkey)

    Χ 

    SNI 1726 2012 (Indonesia)

    Χ

    Eurocode 8

    O

    Eurocode 8 (Singapore)

    O O

    Eurocode 8 (Malaysia)

    Χ

    DPT 1302-61 (Thailand)

    O Χ

    NSCP 2015 (Philippines)

    Χ

    IBC 2012 (ASCE7-10)

    O

    IBC 2009 (ASCE7-05)

    O

    IBC 2000 (ASCE7-98)

    Χ O

    UBC 97

    O

    NBC (1995)

    Χ O

    IS 1893 (2016)

    Χ O

    NSR-10

    Χ O

    NTC 2018 (Italy)

    O

    P-100-1 (2013)

    Χ O

    Taiwan (2011)

    Χ O

     

     

     

    6. Design Code for Wind Load

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    CODE nGen Gen

    BS6399-2 (1997)

    O

    MS1533 (2002)(Malaysia)

    Χ 

    ASCE7 (2010)

    O

    ASCE7 (2005)

    O

    EN1991-1-4 (2005)

    O

    EN1991-1-4 (2005)(Singapore)

    O O

    EN1991-1-4 (2005)(Poland)

    O Χ

    Thailand Wind Code

    O (In July 2021) Χ

    NSCP Wind Code (Philippines)

    Χ Χ

    IBC 2012

    O

    IBC 2009

    O

    IBC 2000

    Χ O

    UBC 97

    Χ O

    NBC (1995)

    Χ O

    IS875

    Χ O

    NSR-10

    Χ O

    Taiwan (2002)

    Χ O

     

     

     

    7. Features for design

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    Feature

    nGen

    Gen

    Ductile Design (Strong column-week beam)

    O

    Capacity Design

    O

    Auto Grouping

    O

    Auto Design

    O

    Seismic Detail

    O

    Combined Design Case

    O

    Χ

    SRC Design

    Χ

    O

    Cold-Formed Steel Design

    Χ

    O

    ETC_01

    -

    Shell design

    (Sandwich panel method)

    ETC_02

    Basement wall Design

    -

     

     

     

    8. Generation of Structural Drawing

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    Drawing Type

    nGen

    Gen

    Beam Reinforcement Cross Section

    O

    Δ

    (in Dshop)

    Column Reinforcement Cross Section

    O

    Δ

    (in Dshop)

    Wall Reinforcement Cross Section

    O

    Χ

    Cross-Section View of the Reinforcement of the Outer Wall

    O

    Χ

    Slab / Foundation Laying Diagram

    Χ

    Δ

    (in Dshop)

    Civil Retaining Wall Details

    Χ

    Δ

    (in Dshop)

    Stair Detail

    Χ

    O

    Steel Connection Drawing

    Χ

    Δ

    (in Dshop)

    Quantity Table

    O

    Χ

     

     

     

    9. BIM Interface

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    SW

    nGen

    Gen

    IFC

    Χ

    Δ (Export only)

    Revit

    O

    O

    Archicad

    Χ

    Χ

    Tekia

    Δ (Export only)

    O

    Sap2000

    Δ (Export only)

    O

    Etabs

    Χ

    Δ (Export only)

    Staad Pro

    O

    O

    Parasolid Format

    O

    Χ

     

     

     

     

    10. Revit Interface

     

    O : Supported  O : Scheduled to be supported  X : not supported  Δ : Not supported (alternative)

     

    Factor

    nGen

    Gen

    1D

    O

    Δ

    Mapping Section

    O

    O

    2D

    O

    O

    (Import to Gen as Plate Element)

    Opening

    O

    Χ

    Rebar

    O

    Χ

    Pile

    Χ

    Χ

    Point Load

    Χ

    O

    Line Load

    Χ

    O

    Load Combination

    Χ

    O

    Offset

    O

    O

    Link

    O

    O

    Support

    Χ

    O

    Material

    O

    Χ

    Level / Story

    O

    Χ

    Grid

    O

    Χ

     

     

     

     

     

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    Young-il Seo
    Yeong-il Seo | Principal Structural Engineer

    Young-il has over 13+ years of experience in building design, especially high-rise buildings with column reduction analysis, plant structures, pushover analysis, health monitoring, and vibration control projects. Since 2016, he is planning and providing technical supports for midas building products such as midas Gen, nGen, and Design+.

    E-BOOK ACI Design Guide

    This Design Guide provides a comprehensive guide for RC design as per ACI318-14.
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