CAD based modeling

A SUITE OF STRUCTURAL
ENGINEERING SOFTWARE

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Drawing to Drawings

MIDAS has been developing a software that can provide DRAWINGS along with the structural analysis and the necessary building design codes in one platform. Finally, midas nGen is ready to be presented to the engineering community. nGen is a structural engineering system, which was created to integrate the overall process of engineering practices
- Architectural drawing, modeling, analysis, design and 2D structural drawings.

Why nGen–Beyond Work, Have Fun

With the automation and optimization facility,it generates a comprehensive structural drawings, structural calculation reports and quantity takeoffs. Assisting engineers in reducing time in producing high quality design deliverables and increase productivity.

Automation

Reducesthe time and effort in going through the cumbersome process of modeling, checking, and reporting. These fundamental steps are the first and last steps for a better and easier software.

  • Auto-generation of members from 2D CAD Tracing
  • Auto-generation of mesh
  • Automatic design checks
  • Auto-generation of drawing / design report / quantity takeoff

How to reduce production time significantly with the 2D to 3D complete models.

Optimization

'Trial and error’ is an outdated practice. The ability to meet predetermined constraints with the optimized determinants is the goal of nGen.

  • Optimum section size by preliminary design
  • Auto-calculation of steel sections & reinforcement reflecting minimum weights and constructability

Enhanced Optimization of design parameters and quantity takeoff.

High quality

Better results equal better reports. nGenprovides seamless outputs to support in the generation of quality reports. With added features, engineers will utilize this with every project.

  • Auto-generation of structural calculation report
  • High-quality structural drawings
  • Auto-compilation of quantity takeoff reflecting constructability Accurate construction

Organizing, collecting and managing the information with higher quality standardization of design deliverables.

Tech Specs

MODELING (8)

LOADING & ANALYSIS (7)

DESIGN (4)

OUTPUTS (7)

Easy & fast CAD based modeling

CAD Based Modeling

  • Define members by a way of drawing lines in CAD
  • Use snap points, or define a member by specifying the coordinates of the member end points
  • Various editing functionality such as Extend / Trim / Offset

CAD Tracing

  • Assign members on CAD tracing lines
  • Snap points on intersect or end points of CAD tracing
  • Auto-generation of members by recognizing CAD layer

Auto-generation of members

  • Auto-generation of members using Cad Tracing (Walls, Columns and Beams)
  • Auto-generation of slab by recognizing closed area

Member offset

  • Set the reference of section to the top of beam or slabmembers
  • Members auto-cut or merged reflecting the connectivity between member types

Accurate analytical model simulation

Accurate construction shape simulation

  • Plate-Beam member
  • Wall-Column member
  • Arc Wall member

Multi-tower building

  • Wind and seismic loads assigned by towers
  • Auto-generation of floor diaphragm for each tower

Multiple diaphragms

  • Define multiple diaphragms for diverse mass centers in the identical floor level
  • Automatic generation of diaphragm by floors

Opening

  • Define members by a way of drawing lines in CAD
  • Use snap points, or define a member by specifying the coordinates of the member end points
  • Various editing functionality such as Extend / Trim / Offset

Practical loading definition for building design

Define slab load

  • Definition of slab loads to slab members
  • Easy revision of applied loading value and area

Define wind & seismic loads

  • Auto-generation of wind and seismic loadings for a building
  • Loading profile and report generation
  • Seismic loading input due to Response Spectrum function

Define notional load

  • Auto-generation of notional loads as per Eurocode and BS code
  • Equivalent horizontal force based on the user-defined proportion ratio of the vertical load

Define loading functions

  • Loading definition in the form of a user-defined function
  • Definition of soil pressure loading using geotechnical investigation results
  • Change the loading positions by moving the member

Advanced analysis features

Parametric design using analysis cases

  • Significantly fast analysis speed for linear static, modal, buckling, crane and construction stage analysis
  • Create various analysis cases composed of combinations of Members + Loads + Boundary Conditions of the modeling data, which can be separately or jointly analyzed, or coupled analysis can be performed
  • Combine member force results of various analysis cases as required at the design stage

Auto-generation of mesh reflecting connections between members

  • Auto-create an analytical model from a geometric shape model for which midas nGen creates fictitious nodes at the connection positions where members meet.

Direct Analysis Method

  • As a new design method for stability, Direct Analysis Method (DAM) is available which includes nominal geometric imperfection and stiffness reduction effects directly within the structural analysis for more accurate structural behavior.

Auto-generation of high-quality outputs

Structural calculation report

  • Auto-arrange modeling and analysis result graphics to be inserted in the report from Grid / Plan information
  • User specified templates to use identical report format repetitively
  • One click to generate a structural calculation report integrated with modeling, drawing and analysis result data

Structural drawings

  • Generate and edit structural drawings from midas Drawing of a 2D CAD environment
  • Auto-generate Column Layout Plan / Framing Plans / Elevations /Sections / Loading Plans / Equipment Pad Layout / Member List
  • Create sections from framing plans at desired locations on plans in real time
  • Use specified templates to define the CAD properties of all the autogenerated drawing composition entities. Freely change the templates as necessary

Member quantities and interface system

Structural calculation report

  • Quantity calculations by lengths of a unit member and member groups
  • Compilation of quantities based on center-to-center of members or lengths considering the member joints.
  • Quantities of steel members by steel grades / classification of concrete compressive strengths
  • Quantities by rebar diameters
  • Calculation of formwork areas / fireproofing / anticorrosive agent area

Direct Analysis Method

  • Loading definition in the form of a user-defined function
  • Definition of soil pressure loading using geotechnical investigation results
  • Change the loading positions by moving the member

Optimal steel section and reinforcement calculations

2D member design

  • Optimal rebar placement for wall and slab members
  • Summary and detail design report for 2D members

Calculation of optimal steel sections

  • Perform steel section calculations through searching for optimal sections from the section database on the basis of the target strength ratios of all the design categories including relative displacements
  • Control the range of section sizes by member groups while keeping the auto-control of limiting sections by member connection conditions

Steel Section Optimal Design

  1. Search for optimal sections satisfying the target stiffness specified for each design category
  2. Calculate the total member sections based on the continuity of members and their constructability
  3. Obtain design member forces after new analysis
  4. Perform design checks

Calculation of optimal reinforcing steel

  • Calculate the reinforcement of minimum quantity reflecting the positions and spacing of rebars with respect to the width and depth of the member based on the target strength ratio for each design category
  • In case of plate members, auto-calculate the reinforcement corresponding to the x/y local directions

Rebar Placement Optimal Design

  1. Calculate the member capacity satisfying the target design strength ratio for each design category
  2. Calculate the minimum reinforcement ratio of the most unfavorable member for each member group
  3. Calculate the reinforcement in reference to the bar placement range settings by section sizes
  4. Perform design checks

Auto-definition of design parameters by members

  • Auto-define design parameters as per design codes by design positions
  • Set design parameters all at once, and check / edit the data in a table form
  • Check auto-calculated design parameters such as unbraced lengths in contour graphics

Advanced analysis features

Auto-generation of load combinations

  • Auto-generate load combinations using a template by load types based on a specified design code
  • Mange the design code based load combination templates through implementing user defined database

Graphical design evaluation results

  • Check the design results of the total model through strength ratios represented in colored graphics of design assessment categories
  • Classify the design assessment categories considering the specified target ratio

Detail design results check

  • Select a member from the model view and generate a structural calculation report in the Word format
  • Assess the detail design results of all the design check items by members in a table

Support & Learning

More than Easy!
Watch and follow Step-by-Step guide from basic function to real project.

See how nGen helps your work in many ways

INFORMAL BUILDING

Twisted Shell Member Analysis

Turning Torso is based on a sculpture by Calatrava,called Twisting Torso, which is a white marble piece based on the form of a twisting human being.

In 1999, HSB Malmö's former managing director, Johnny Örbäck, saw the sculpture in a brochure presenting Calatrava in connection with his contribution to the architectural competition for the Öresund Bridge. It was on this occasion that Örbäck was inspired to build HSB Turning Torso. Shortly afterwards he travelled to Zurich to meet Calatrava, and ask him to design a residential building based on the idea of a structure of twisting cubes.

INFORMAL BUILDING

Curved Surface Shape Analysis

In its geometric essence, shape from texture is a cue to 3D shape very similar to binocular stereopsis and structure from motion.

All of these cues are based on the information available in multiple perspective views of the same surface in the scene.

In binocular stereopsis, the two eyes get slightly different views of the same surface; in structure from motion, the relative motion of the observer and the surface generates the different views.

IRREGULAR STRUCTURE

Curved Surface Shape Analysis

In its geometric essence, shape from texture is a cue to 3D shape very similar to binocular stereopsis and structure from motion.

All of these cues are based on the information available in multiple perspective views of the same surface in the scene.

In binocular stereopsis, the two eyes get slightly different views of the same surface; in structure from motion, the relative motion of the observer and the surface generates the different views.

MULTI TOWER

Analysis for more than Two Independent Structures

Analysis for more than two independent structures can be easily done in midas nGen. Diaphragm setting and analysis can be done conveniently for structures with more than two masses.

COMPLEX FACILITIES

RC Structures with Diverse Structural Systems

Realization of diverse geometry and drawings are possible using Plate Beam and Shape Offset. Modeling of beam adjacent to horizontal member at different level can be easily done using Plate Beam members.

STEEL / RC FRAME

Structural Analysis & Optimal Design

In general, the optimization techniques used in structural design can be categorized into classical and heuristic search methods.

Classical optimization methods such as linear programming, nonlinear programming and optimality criteria often require substantial gradient information.