Virtual Design Construction Case Study4

In this presentation, I will demonstrate my typical work flow and template development processes for CAITA work example. Incheon No. 2 International Passenger Terminal project, one of the busiest passenger airports in the world, is selected for the purpose of the demonstration. I was involved throughout the project for the most part of modeling works. Particularly for Roof Cell (image shown ), I led a team of modeling designers from data analysis and early planning to implementation of modeling, including all the communications with project team members. Therefore, the demonstration will be focused on the Roof Cell. In addition to the detailed descriptions of my actual works, my own thinking and reasoning behind the works or processes will be presented as well.

Outline

1. Analysis of Reference Data & Work Planning

2. CATIA Training for Client (one day session)

3. Input Data Breakdown & Preliminary Quantity Take-off

4. CATIA Template Creation & Sample Implementations

5. Conflict Study & Template revision

6. Finalization of Templates & Deliverables

(3D Modeling, Quantity take-off, 2D reference drawings)

Chapter 1

Analysis of Reference Data & Work Planning

The first step for CATIA design is to analyze reference data and plan work process based on the given data. Item selections and work schedule can be determined through discussions with clients and other project team members, items are selected and schedule is outlined.

1. Analysis of 2D Drawings

Preliminary design documents, including 2D design drawings, are key communication tools between client and 3D modeling team (my team), and are revised and finalized based on various design environments. They are used to;

?Set up Work Breakdown Structure (WBS) for 3D design,

?Analyze and establish design references, and

?Identify design issues.

2. Analysis of 3D Reference Data for Glass roof

3. Analysis of 3D Reference Data for Steel Structure

4. Analysis of other 3D Reference Data (e.g. Gutter) & Design Coordination with other teams

Gutter runs all the way around the roof cell to carry off rainwater. During this sample project, the other design team member designed the gutter support data (shown in blue in the left image) based on the gutter surface (shown in yellow in the left image) that is provided by the client. The gutter support needs to be properly designed to avoid any conflict with Aluminum sheets. along the roof cell, which is design by my team. To address such design issues, I lead the design coordination between multiple design teams as a team work approach.

Chapter 2

CATIA Training for Client (one day session)

In this project example, the client is 2D design firm that is mainly responsible for 2D shop drawings. They haven’t been exposed to 3D modeling yet, and therefore CATIA training is determined to be necessary. Because they don’t need to be involved in actual 3D design, one day session is provided to teach them how to navigate and read/view CATIA. The objectives of typical one day training are as follows:

?Navigation of CATIA modeling (e.g. mouse control, contextual menu, infrastructure)

?Parts assembly in CATIA Project

?Dimension check using measuring tools

?Using Show/Hide functions

Not only I am an advanced CATIA modeling designer, but also I am an experienced CATIA instructor. My past instructions include from 1:1 to a class of 30 people, and also from one day session to 3-month comprehensive training. I can provide customized training based on client’s needs, both in terms of depth and width. The following CATIA V5 Workbenches can be provided.

1, Part Design

2, Generative Shape Design

3, Assembly Design

4, Drafting

3, free style

4, fitting simulation

5, kinematic simulation

6, Knowledge Advisor

Each workbench training includes not only its functions but also technical aspects, such as Modeling Methodology (History, Top Down , Skeleton), Parameter Management(Parameter & Relations) , Reusable Content( Replace, Power Copy, Design Table, Link Copy), etc.

Chapter 3

Input Data Breakdown & Preliminary Quantity Take-off

Input data needs to be analyzed and broken down into individual work packages for preliminary quantity take-off. The breakdown is also used to plan design work load.

Preliminary quantity take-off

Chapter 4

Template Creation & Sample Implementation

Preliminary template is created for shape review and then implemented to modeling. Then, the modeling outcome is used to identify potential issues (e.g. constructability) and solve such issues.

A partial model of preliminary template is shown below. The main benefit of such model (often called as Coordinate Model) is to quickly create a model so that it can be reviewed by the client’s design team prior to complete template modeling, which can reduce overall design delivery time..

Once preliminary review is complete, then the templates are finalized. Areas where issues likely happen (e.g. complex assemblies) can be further reviewed through 3D virtual construction.

Areas where require complex assembly and therefore design coordination and constructability issues likely occur are typically more challenging. Images above, showing virtual construction for the edges of glass roofing system, are typical examples of such areas.

Chapter 5

Conflict Study & Template revision

Sample modeling areas are used for conflict study, and then used to revise design and CATIA templates if necessary. Detailed reviews are made with client and other design teams to identify any potential issues related to design coordination, prefabrication, constructability, etc. Conflict study enables the project team to mitigate issues and solve problems prior to actual construction, which would eventually minimize project cost and schedule overrun.

Images above show the comparison between before design revision and after, during conflict study to identify potential issues. Results from such conflict study are used as inputs for templates of each work items (e.g. glass, mullion, transom, panel, etc).

I strongly believe that integrated project approach and front-end planning (e. g. conflict study), rather than design change after the fact, would be significantly beneficial and minimize potential cost and schedule overrun.

Chapter 6

Finalization of Templates & Deliverables (3D Modeling, Quantity take-off, 2D reference drawings)

This chapter is to describe modeling based on finalized templates, and final deliverables.

Final deliverables after finalized template implementation include 3D and 2D view drawings. Images above show examples of 2D view deliverables, which provides important information, such as locations of individual pieces and materials, etc, for the client. Based on these drawings, the client is now able to generate shop drawings as shown on the next page.

If requested by client, an automated system to generate shop drawings from templates can be provided. In this case, the automation process can be developed with coordination with a programming team.

Final 3D deliverables

Mullion

Transom

Share Block

AL-Bar & Node Cap

Sheets

Glass

Final outcome – Modeling assembly result & photos from actual construction