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CAD STANDARDS

Space Management, Infrastructure Services

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Space Management

Infrastructure Services

CAD STANDARDS

August 2018

CAD STANDARDS


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Revised by

Jade Peter Germantis & David Heng

Space Management Team, Infrastructure Services

The University of Melbourne

Version 3.1

Update: August 2018

CAD STANDARDS


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Table of Contents 1. Introduction .............................................................................................................................. 4

1.1. Summary of amendments to CAD Standards ................................................................... 4

1.2. Background ....................................................................................................................... 4

1.3. Definitions and Acronyms ................................................................................................ 5

2. General Requirements .............................................................................................................. 6

2.1. Conditions of Compliance ................................................................................................ 6

2.2. Drawing Transmittal Requirements ................................................................................. 6

3. CAD File Format Requirements ................................................................................................. 7

3.1. Minimum requirements for acceptance of CAD files ....................................................... 7

4. Special Requirements ............................................................................................................... 8

4.1. Feature Surveys ................................................................................................................ 8

4.2. Underground Services ...................................................................................................... 8

APPENDIX A .....................................................................................................................................10

DRAWINGS, AS-BUILTS & MANUALS - FORMAT & SUBMISSION ...............................................10

APPENDIX B .....................................................................................................................................12

MERIDIAN AS BUILT PORTAL SUBMISSION GUIDELINES ............................................................12

Overview ........................................................................................................................................13

1. Registration and Submission ..................................................................................................13

2. Format ....................................................................................................................................18

2.1 As Builts and Manuals ................................................................................................18

2.2 Book In Cover Sheet ...................................................................................................18

APPENDIX C .....................................................................................................................................19

UNDERGROUND SERVICES SURVEY INFORMATION ...................................................................19

APPENDIX D.....................................................................................................................................24

UNDERGROUND SERVICES UNIQUE ENTITY CODES ....................................................................24

Example ..................................................................................................................................25

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1. Introduction

1.1. Summary of amendments to CAD Standards

The following summarises the recent changes to CAD Standards document.

• Space Management Team utilises an online database, Meridian As Built Portal for CAD files storage. https://meridian.staff.unimelb.edu.au/OCP

• The definition ‘AMG’ has been replaced with the new ‘MGA’ Coordinate System.

• The Space Management Team has amended the timeframe for receiving all related

Manuals and As-Builts. These are to be provided within four weeks after practical completion has been reached.

• A new drawing focus has been added for Underground Services.

• CAD files and all related documents to be submitted only through the approved

University online database – Meridian OCP Portal.

• A legend must be provided if the drawings received contain any non-standard layer names.

• Details provided as to the special requirements for Fire Services drawings.

1.2. Background

AutoCAD is used in the maintenance, design and facilities management of buildings and grounds in conjunction with other spatial data systems.

In this document the requirements for the AS BUILT drawings are outlined to obtain a high quality uniform set of documents that can easily be easily uploaded into the Meridian As Built Portal.

All queries relating to the CAD Standards should be directed to Space Management, Infrastructure Services, at [email protected].

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1.3. Definitions and Acronyms

CAD Computer Aided Drafting.

AutoCAD AutoCAD 2000 or later, copyright Autodesk.

AS-BUILT Measured and revised drawings documenting the full extent of completed building works.

MGA Map Grid Australian

AHD Australian Height Datum.

DWG Default AutoCAD drawing file format.

MODEL SPACE Defined drawing space in AutoCAD

PAPER SPACE Defined drawing space in AutoCAD for placing title sheets

etc.

LAYOUT Defined drawing space in AutoCAD for placing title sheets etc

XREF An external drawing file that is referenced into the main

drawing.

BIND An AutoCAD command that allows all external reference files to become a BLOCK in the CAD file.

LAYER Electronic drawing sheet within a drawing file upon which

data can be drawn and manipulated. A layer can be turned on or off as required.

BYLAYER Settings of line types and colours for specified entities.

PURGED AutoCAD command to delete any entity information that

is not being used in the CAD file.

BLOCK A subordinate drawing file within the main drawing file.

EXPLODE AutoCAD command to break a subordinate drawing file into

separate entities within the main drawing file.

BASE An AutoCAD command that sets the insertion point of drawings when used as a BLOCK.

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2. General Requirements

2.1. Conditions of Compliance

All consultants and contractors are required to meet the specifications of the CAD Standards set by the Space Management Team, Infrastructure Services, University of Melbourne, as part of their conditions of engagement.

The University of Melbourne Space Management Team provides consultants/contractors with copies of the Melbourne University CAD files for reference only and accepts no liability for their accuracy for purposes of building design or construction. All consultants/contractors are required to carry out the normal standard of site investigations as required by their profession and in accordance with their conditions of contract.

The consultant/contractor shall provide the Space Management Team with “As-Built” AutoCAD drawings no later than four weeks after practical completion.

2.2. Drawing Transmittal Requirements

Drawing files must meet these basic criteria or they will not be accepted. All “As-Built” drawings are to be marked in an obvious fashion with the text “As-Built” on the the CAD files and on the PDF copies of the drawings. One set of “As-Built” information per project is required. Multiple contracts or building requisitions shall not be combined into one set of “As-Built” documentation.

All computer files shall be submitted through the UoM online submission portal - Meridian As Built Portal. https://meridian.staff.unimelb.edu.au/OCP Please refer to:

• Appendix A ‘Drawings, As-Builts & Manuals – Format & Submission’ document for submission and format guidelines and;

• Appendix B ‘Meridian As Built Portal Submission Guidelines’ for a step by step guide on submissions through Meridian As Built Portal.

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3. CAD File Format Requirements

3.1. Minimum requirements for acceptance of CAD files

The consultant/contractor shall ensure that all CAD files conform to the following:

• CAD files shall be in AutoCAD 2016 (.dwg) file format or in previous formats • One drawing unit = one millimetre • Use fonts and line type files supplied with standard installation of AutoCAD • No external references! (All x-refs must be bound – or will not be accepted) • Files must be purged. • There shall be one AutoCAD file per completed drawing. • Multiple drawing sheets shall not be contained in one AutoCAD file. • Drawing entities shall be in model space. • All CAD files of building floor plans must have BASE set to “0, 0, 0” and the floor

plans drawn to the same grid coordinates on each CAD file. • All entities within the drawing file must have the colours and line types set to

BYLAYER. The documentation to be supplied MUST include:

• PS Number as provided by project manager on each title sheet of the drawing. • Marked with “AS BUILT” on each title sheet of the drawing. • Marked with correct DATE on each title sheet of the drawing. • Marked with correct REVISION numbers on each title sheet of the drawing.

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4. Special Requirements

Following are special requirements for the Feature Survey and Underground Services documentation.

4.1. Feature Surveys All plans shall be orientated with North to the top of the screen. Where a campus survey

drawing is used there shall be NO rotation to the drawing.

All elements shall be surveyed in three coordinates (X,Y,Z) using only Map Grid Australia, Zone

55 (MGA 55) and Australian Height Datum (AHD).

Where available within the campus, a minimum of three benchmarks shall be used and tied to

one another to check for any possible variation in the coordinates or RL. Where no guaranteed

benchmarks exist in the campus area, the contractor must place at least three control points in

the campus area by a qualified surveyor. The coordinates and mapped positions of these control

points must be submitted with the final work. The control points must be placed in stable areas

where there is little chance of them being destroyed.

Contours shall be displayed on all drawings at a suitable contour interval where applicable.

Trees of a height of one metre or more shall be surveyed. The position of the tree shall be

surveyed as the middle of the trunk, measured at one metre above ground level.

4.2. Underground Services All constructed underground services shall be mapped on the campus survey plan. The investigation shall provide the following information for each service detected, regardless if part of the service is above ground or underground:

• The service location on plan together with an offset measurement from the

nearest building line.

• Material of pipe or conduit.

• Depth or cover to pipe, conduit or cable.

• Diameter of pipe or conduit.

• The reduced level on pit covers.

• The depth and exact location of pit, including the edges of pits.

• The invert level of pipes or conduits converging at a pit.

• Documentation on the type of pit, material and depth of pit, type of lid, and state

of repair of pit.

• In the cases of an array of conduits, the surveyor shall provide information on how many conduits are empty and how many are being used.

• All isolation valves to buildings or other set areas, this is to include valves inside

and outside buildings.

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The contractor shall also detail all service entity information as specified in

Appendix C – ‘Underground Services Survey Information’.

The final documentation for underground services shall be provided in two formats incorporating an AutoCAD Drawing file and an Excel Spreadsheet. To enable Excel information to be associated with the right service entity on the CAD file, each Excel record will have a unique entity code. The format for this code is specified in Appendix D

– ‘Underground Services Unique Entity Codes’.

The pit number for pits shall be the same as the unique entity code as specified

above.

All abbreviations used in the documentation of the underground services must be fully defined within the legend of all title sheets.

As an exception to Section 3.1, underground service Cad files shall comprise of external

reference files. One AutoCAD CAD file for each service type surveyed.

The Space Management Team, University of Melbourne is able to provide records of

known services through the Meridian As Built Portal upon request.

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APPENDIX A

DRAWINGS, AS-BUILTS & MANUALS - FORMAT &

SUBMISSION

This appendix provides the quick guidelines for format and submission for all stages of a project.

Drawings, As-builts & Manuals for Space Management

Quick Guidelines for Format & Submission

Deliverable Stage Format Purpose

DETAILED DESIGN DRAWINGS Architectural floor plans with furniture layout

End of detailed design

PDF

For issuance of room numbers

CONSTRUCTION DRAWINGS Architectural floor plans with furniture layout

End of construction documentation

AutoCAD & PDF

For updating SIS

AS-BUILTS1 All Architectural drawings (incl. joinery drawings) Structural drawings All services & all disciplines Site & feature surveys & U.G. services

Within 4 weeks of practical completion

AutoCAD & PDF

Operational readiness

MANUALS2 At practical completion PDF

CERTIFICATE OF OCCUPANCY, BUILDING PERMITS AND ALL REPORTS

Minimum of one week prior to opening date or as advised by the University Project Manager

PDF

All information received by the Project Manager from the relevant consultant must be provided to Space

Management at the appropriate stages.

All As Built drawings and Manuals must be submitted electronically through the Meridian As-Built Portal (link

below) as per instructions outlined in the Create Book In Request webpage and as per the instructions below.

Meridian As-Built Portal: https://meridian.staff.unimelb.edu.au/OCP/BookIn

1Further instructions for As-built documentation

1.1 Drafting conventions must be compliant with internationally accepted CAD drafting standards. Naming of layers must be self-explanatory or a legend provided in place.

1.2 All external references (xrefs) must be bound.

1.3 There must be only one sheet/drawing per DWG and PDF file.

1.4 As-built documentation is to include all project specifications and schedules.

2Further instructions for manuals

2.1 Submit electronic manuals only. Printed manuals are no longer required.

2.2 Manuals must be consolidated as one singular PDF per volume.

2.3 Manuals must include a cover page (Building Request number, project title, building number, room number, year, et al) index and coherently sequenced contents as would a printed copy.

2.4 Manuals are to provide concise descriptions, technical details, operation and maintenance instructions and schedules, commissioning records, log books, catalogues, principles of operation, method of operation and other information that will enable the on-going operation and maintenance of the fabric, services, plant and equipment.

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APPENDIX B

MERIDIAN AS BUILT PORTAL SUBMISSION GUIDELINES This appendix provides a step by step guide on the submission process for As Built

documentation into the University of Melbourne database (Meridian As Built Portal).

University of Melbourne Meridian As-built Portal

– Contractor Contributor Upload Tool

Overview The Meridian As-built Portal provides secure search, browse and download in addition to

online submission and approval of drawing packages for automated import into BlueCielo

Meridian Enterprise.

All As Built Documentation and Manuals must be submitted electronically through the

Meridian As-Built Portal (link provided below) as per instructions and format outlined

below.

URL: https://meridian.staff.unimelb.edu.au/OCP/BookIn

1. Registration and Submission

1.1 For external users register an account at: https://meridian.staff.unimelb.edu.au/OCP/Account/Register

a. Select the appropriate UoM contact person to approve your account b. Select the appropriate Building in ‘Requested Documents to Access’ c. NB: If your account expires or additional access is required, a request can be made

directly to the UoM Project Manager or relevant UoM contact person

1.2 Navigate to the ‘Contributor’ page for submission: https://meridian.staff.unimelb.edu.au/OCP/BookIn

1.3 Download the sample excel file and fill in the ‘Book in Cover Sheet.xlsx’ according to the format guidelines presented in Section 2.2

1.4 Zip all files (PDF, DWG, DOCX, XLSX) along with the ‘Book in Cover Sheet’ to create a Book-In Package (A limit of 200mb is recommended per package)

NB: You must zip only the files that are listed in the ‘Book in Cover Sheet’ and not other files or folders as shown below:

1.5 Click the Add Files button to select the Book-In ZIP file package.

1.6 Click the Start upload button to upload the file to the website

1.7 Select relevant UoM contact person related to the project files

1.8 Review upload status

1.9 Review the uploaded documents and submit the Book-In request

1.10 Review the receipt

1.11 Review email notification

1.12 Await Book-In Approval

You will receive an email notification once the Book-In has been reviewed and approved

by The University of Melbourne Space Management team.

2. Format

2.1 As Builts and Manuals See ‘Drawings, As-Builts & Manuals for Space Management, Quick Guidelines’ document.

2.2 Book In Cover Sheet 2.2.1 Register (instructions as per section 1) and download ‘sample book-in (ZIP)’ from

the link provided: https://meridian.staff.unimelb.edu.au/OCP/BookIn

2.2.2 Unzip and open the Book In Cover Sheet excel file.

2.2.3 Fill in all fields according to the following format:

Column Format

Campus Select the appropriate campus from the drop down list

Building Number Select the appropriate building number from the drop down list

Focus Description Select the appropriate discipline from the drop down list

Focus Code The Focus Code is an abbreviation of the Focus Description. Select the appropriate code from the drop down list

Floor Level Select the relevant floor level from the drop down list or leave blank if not applicable

Year Select the appropriate year from the drop down list

PS Number Enter the building request number if known or leave blank

Project Enter the project name

File Name The file name column must match exactly what is submitted in the zip folder including the file extension e.g. BN100_Ground.pdf, BN100_Ground.dwg etc.

Description Enter in the relevant description of the manual, drawing or other file type or as per drawing title block. Put in as much information as possible e.g. Level 1 Power & Lighting Floor Layout

Document Type Select the appropriate document type from the drop down list. AsBuilt Building Documents relate to drawings, Building Manuals for guidelines and manuals, and so on.

Project Manager Enter the relevant UOM Project Manager

Consultant Enter the consultant company name

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APPENDIX C

UNDERGROUND SERVICES SURVEY INFORMATION

This appendix documents the underground service entities that are required, by the University of Melbourne, to be surveyed. It also specifies the types of information required for each underground service.

A pro forma spreadsheet is available from the University of Melbourne Space Management Team prior to commencement of any work.

UNDERGROUND SERVICES INFORMATION REQUIREMENTS

SERVICE ENTITY INFORMATION SAVED FIELD TYPE COMMENTS

DWG EXCEL

Mains Water Pipes Material

X X Text, 10 characters

Detect material type and use standard code on drawing

Date Installed X Date format, dd/mm/yyyy

Diameter X X Integer, 6 characters In millimetres

Pressure X Integer, 10 characters Assumed pressure in pipe

Location X Shown accurately on drawing

Offset X To nearest building line on

drawing

Depth to pipe X X Real, 8 characters, 2

decimals In meters

RL at exposed points X Real, 8 characters, 2

decimals In meters

Valves

Valve Type

X

Text, 64 characters

How to determine where valves are because of pipe

material changes ie. Poly to copper.


Predict year if unknown

Location X Is isolation valve inside

buildings our outside


drawing

Water Meter

Meter Type X Text, 64 characters

Describe make and type of meter



Location X Offset

X To nearest building line on drawing

Stormwater Pipes

Material X X

Text, 64 characters Detect material type and use

standard code on drawing

Direction of Flow X Arrow on drawing




Location X Do not locate minor

stormwater down pipes


drawing


decimals In meters


decimals In meters

IL at pits X X Real, 8 characters, 2

decimals In meters

Fire Service Pipes Material X X Text, 64 characters



Location

X Is isolation valve inside buildings our outside


DWG EXCEL

Offset

X To nearest building line on drawing


decimals In meters

Depth to pipe X Real, 8 characters, 2

decimals In meters

Hydrant


Diameter X Integer, 6 characters In millimetres

Electricity

Cable

Location High/Low

Voltage/Street Lighting

X

X

X

Text, 2 characters

(HV, LV, ST)

Shown accurately on drawing

Depth X X Integer, 6 characters In meters

Voltage rating X X Integer, 6 characters Type X Text, 64 characters Date Installed X Date format,

dd/mm/yyyy



drawing

Conduits

Array arrangement X Show diagram of array as per

standards

Depth X X Real, 8 characters, 2

decimals In meters

Used/Unused X Type X Text, 64 characters Date Installed X Date format,

dd/mm/yyyy



drawing

Gas Pipes

High/Low pressure X X Text, 2 characters (LP,

HP)


decimals In meters

Type X Text, 64 characters In meters



Location X Is isolation valve inside

buildings our outside

Valves Valve Type X Integer, 6 characters Gate or Sluice




drawing

Gas Meter Meter Type X Text, 64 characters Date Installed X Date format,

dd/mm/yyyy



drawing


DWG EXCEL

Gas Regulator

Regulator Type X Text, 64 characters

Regulator Pressure X Integer, 6 characters Date Installed X Date format,

dd/mm/yyyy



drawing

Telephone Cable Location X Shown accurately on drawing


decimals In meters

Type X Text, 64 characters Date Installed X Date format,

dd/mm/yyyy


drawing

Number of pairs X X Integer, 6 characters Security Devices Type of device X X

Location Shown accurately on drawing

Cable Location X Shown accurately on drawing


dd/mm/yyyy

Depth X Real, 8 characters, 2

decimals In meters

Offset X

Fibre Optic Cable Location X Shown accurately on drawing


dd/mm/yyyy

Depth X Real, 8 characters, 2

decimals In meters


drawing

Sewer Material X X Text, 10 characters

Direction of Flow X Arrow on drawing

Date Installed X Integer, 6 characters Diameter X X In millimetres



drawing


decimals In meters

IL at pits X X Real, 8 characters, 2

decimals In meters

RL at exposed points X In meters


DWG EXCEL Hot Water Pipes Material X

Date Installed X X Diameter X X In millimetres



drawing


decimals In meters

Level at exposed points

X In meters

All Services Pits Lid Type X Text, 64 characters

Unique Pit Number X X

Text, 10 characters Refer to CAD standards for pit

numbering standard

Condition of pit X Text, 64 characters IL of converging

conduits or pipes X In meters

RL of top of pit X X Real, 8 characters, 2

decimals In meters

Pit depth X Real, 8 characters, 2 decimals

In meters

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APPENDIX D

UNDERGROUND SERVICES UNIQUE ENTITY CODES

All underground entities surveyed will be supplied with a unique entity code. This

code will be tabled in an Excel spreadsheet with the information as requested in

Appendix C. The unique entity code shall also be noted on the drawing next to the entity concerned and be bounded by a polyline.

The format of this code is made up of two sub parts. The first sub part is a prefix

representing the underground service the entity. A list of these prefixes is documented below. The second sub part is a unique five digit number that will be supplied to entity sequentially.

CODE

PREFIX

DESCRIPTION

CFS CAMPUS FIRE SERVICE

COM COMPUTERS

CSS CENTRAL SUPERVISORY SYSTEM

CTD COOLING TOWER DISCHARGE

EGC EMERGENCY GENERATOR CONNECTION

GAS GAS MAINS

HV HIGH VOLTAGE ELECTRICITY

HW HOT WATER

LV LOW VOLTAGE ELECTRICITY

MW MAINS WATER

S SEWER

SL STREET LIGHTING

SP STEAM PIPES

SW STORM WATER

T TELECOMMUNICATIONS

UGE

GENERAL ELECTRICAL

Example

Following is an example of table information supplied with a drawing.

A CAD file for underground storm water;

NOTE: Unique entity code listed with each entity on the CAD file.

The associated Excel spreadsheet;

STORM WATER

Pipes Entity Code Material Date Dia Depth SW01265 RCP 1965 300 1.45 SW1267 RCP 1965 300 1.5 SW01269 RCP 1980 300 1.3 SW01271 RCP 1980 300 1.35 SW01272 VCP 1955 225 1.45 SW01273 VCP 1956 225 1.05 SW01273 RCP 1985 150 0.9

Pits

Entity Code

Date

Cover Type

Condition

RL Top

Depth

SW-P01266 1965 35mm Gatic Good 4.55 1.70 SW-P01268 1980 Concrete Lid Poor 4.56 1.5 SW-P01270 1980 35mm Gatic Fair 4.56 1.6 SW-P01274 1985 Gatic SEP Good 4.40 1.35