TO BE PROVIDED BY THE EMPLOYER
II. 3D COMPUTER AIDED DESIGN (CAD) MODELS 2 A. Purpose
The 3D CAD Model is intended to be a computer aided design tool for all home office engineering disciplines. Although beneficial for other uses such as field construction, start-up and operator training, these shall be considered supplemental.
The 3D Model shall be developed under the supervision of Contractor's design personnel in Contractor's home office and shall, with respect to timing, fully support Contractor's detailed engineering effort. It shall contain only the amount of detail required to produce accurate and complete working drawings. As such, these documents shall be a scale replica of the entire facility for which the tool is being used.
The drawings and diagrams for engineering and construction will be elaborated and delivered using an integrated system of database and graphic platform, using the PDMSTM (Plant Design Management System) or similar. The process diagrams (P&ID, PFD, plot plan, one-circuit distribution, etc) shall be elaborated using “2D intelligent technology” following the standard ISO 15926. It is important to emphasize that the pipings and instruments supports may be omitted from the scope of the models3.
The product or suite that the Contractor shall use for the development of the intelligence technology in 2 dimensions shall generate automatically outcome files which comply with the ISO 15926 standard.
The generation of the drawings in 2D shall use a graphic platform in (AutoCad or equivalent), the drawings may be elaborated working in a local or remote manner.
1 Question 28 – Round 1 and 112 – Round 3.
2 Questions: 49 – Round 1 (Information more detailed shall be provided to the successful Bidder) and 111 - Round 3.
3 Question 50 – Round 1.
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17. MODELS
The drawings shall be subject to a verification of consistency of the drawing elements4.
The application used to be able to interrogate and display drawings generated in the graphic platform, including specific information and each element represented in the diagram of two dimensions. This information should be stored in a database which does not permit the repetition of elements with the same identification or label number, each and all of the records shall be stored showing the state in force and representing all the life cycle of the installation.
The information contained in the database, must be able to be extracted in the form of fact sheets, lists and reports, using an interface itself and exported to some software.
Nowadays, the information with respect to the plans and technical documents is available in electronic form (autocad), scanned and printed in paper.
There are no 3D models for the existing units5.
The electronic versions of the tool should be the latest; this version must now be used in similar industries (Oil & Gas) in the American continent. The developer and owner of the technology must recommend the most functional and optimum version for the project.
The CONTRACTOR shall propose the appropriate system and the EMPLOYER shall approve. Also, the CONTRACTOR shall provide to the EMPLOYER, at the beginning of the FEED effort, the software packages and at least three licensees in order to allow the EMPLOYER to review the drawings and diagrams developed by the EMPLOYER. A workstation system is also required. The Licenses shall be located at the places indicated by the EMPLOYER and at least one of the licenses shall be located at the EMPLOYER’s offices6.
The CONTRACTOR shall elaborate new drawings of the existing facilities using 3D scanning surveying technology.
The CONTRACTOR may subcontract laser survey of the existing facilities to a company specialized in laser survey, following the Contract procedures. As this activity is within the CONTRACTOR’s obligations scope, the CONTRACTOR will be responsible for the execution of the laser surveys. It is confirmed that underground facilities are excluded from laser survey7.
4 Question 29 – Round 1.
5 Question 243 - Round 1.
6 Question 208- Round 1
7 Question 119 – Round 3.
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17. MODELS
As well, it is confirmed that the 3-dimension scanning technology refers to the development of the 3D model starting from dotted cloud data obtained from the laser scanning system, and that the scope of the Contractor’s work includes the development of 3D models and the extraction of the Refinery isometric plans of both the upgraded and new facilities8.
B. Description and Content
Contractor shall utilize a 3D Model for all of the project's facilities, Contractor shall describe the system they use and how they intend to utilize it for the project. The Employer shall approve the program to be used.
1. Work Flow Diagram
To illustrate how Contractor's 3D Model designs evolve, Contractor is required to develop a work flow diagram that delineates the entire process from database development through to issuance of approved for construction documents. This will include prerequisite information requirements and a list of deliverables (Intelligent P&ID's, Plot Plans, Isometrics, Electrical Routing Diagrams, etc.) and when produced during the design development.
2. Complementary Software
Contractor to identify complementary software systems to be utilized for completing designs. Contractor shall demonstrate to the EMPLOYER’s satisfaction that system(s) and database “attributes” to be utilized by Contractor are compatible with those system(s) currently used by the EMPLOYER.
3. Clash Reviews
One of the major benefits of 3D Models is the ability to identify design interferences. Contractor is to identify system's clash review capabilities and how interdisciplinary designs are checked for interferences (i.e., structural secondary supports, pipe, electrical and instrumentation, etc.).
4. Plant Walk-Through Feature
To facilitate model review, Contractor's system should have a plant walk-through feature that allows Contractor/EMPLOYER to fully visualize access and operability of facilities.
8 Question 30 – Round 1.
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17. MODELS 5. Deliverables
Contractor to identify all the deliverables to be issued by 3D Model, including but not limited to description and/or example of the following content. As a minimum, the model shall contain the following:
a. All process and process piping and utilities, properly identified with thermal insulation and heat veins so designated;
b. All valves, including hand wheels and valve actuators;
c. All equipment items, including firefighting (monitors, hydrants and hose reels);
d. All buildings and structures including smokestacks, pipe racks, supports, etc. with fireproofing requirements indicated;
e. Engineered pipe supports;
f. Transformers and switchgear;
g. Electrical and Instrument major raceways;
h. All instrumentation, properly identified;
i. Handrails and ladder cages.
The instrumentation piping may be omitted from the scope of the models.
All equipment, instrumentation and piping shall be shown to scale.
Following items are to be shown in location on the model base:
a. Roadways, accessways, and site drainage scheme;
b. Foundation limits;
c. Underground facilities and utilities.
The following miscellaneous and standard details are representative of those items which may be omitted:
a. Miscellaneous pipe supports;
b. Instrument piping;
c. Lighting.
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17. MODELS 6. Early Bulk Material Take-offs
Contractor shall describe when and how early bulk take-offs will be conducted and reconciliation made to model's final material lists.
7. Data Protection
Contractor to describe data protection measures. As a minimum, system shall have a dual server and be backed up daily to protect against system failures and corruption of data.
C. Model Reviews
The EMPLOYER shall have free access to the Model at all times and Contractor shall provide at least one work station from which the EMPLOYER will have access in addition to undertaking the following formal reviews:
1. Interim review when Model is approximately 30% complete, with equipment and major piping included;
2. Interim review when model is approximately 60% complete with additional structural piping and electrical details.
3. Final review when Model is 90% complete, prior to production of piping isometrics drawings.
4. Operability, safety and maintenance reviews as and when deemed necessary by the EMPLOYER's Project Manager.
Contractor shall coordinate, schedule and fully document the results of formal reviews.
D. Post-Engineering Utilization
To maximize the use of the Model during construction, Contractor is to make a 3D Model work station available at the Site, for use by construction subcontractors in constructability planning and construction coordination.
E. Handover
Upon completion of the project, Contractor shall hand-over the latest copy of the model in its native format, including database information with “attributes”.
Contractor to provide engineering drawing, as determined by the EMPLOYER, converted to be compatible with the EMPLOYER's in-house CAD system.
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17. MODELS III. HARD, PLASTIC BLOCK MODELS9