Guidelines for Using Building Information Modelling – UFA Diagram

Leave a reply
  • UFA Diagram

UFA diagram should contain the following information, if applicable, but not limited to:

  • Grids and grid dimensions as appropriate,
    • Delineation of the aggregate UFA areas, either by colour or annotation, and
    • Corresponding schedule and calculation.

Guidelines for Using Building Information Modelling – GFA Diagram

Leave a reply
  • GFA Diagram

GFA diagram should contain the following information, if applicable, but not limited to:

  • Grids and grid dimensions as appropriate,
    • Essential dimensions for layout design,
    • Adoption of colour code system as listed in Table 1 below,
    • Indication of GFA diagram with the corresponding halftone under laying floor plans,
    • Pre-set GFA zones / areas should be labelled appropriately and easily cross-referenced between the GFA diagrams and the corresponding schedule and calculation, and
    • Corresponding schedule and calculation.
  Categories of GFAPre-defined ColourRGB Colour System1
  1.    Accountable domestic GFA  ORANGE 255, 164 ,25
  2.    Accountable non-domestic GFA2  RED 227, 100, 102
3.    Disregarded GFA NOT subject to the overall 10% cap
a) Concession items specified in PNAP APP-151 (other than carpark, loading and unloading areas)  PURPLE 191, 000, 255
b) Carpark, loading and unloading areas and others  WOOD 222, 184, 135
4.    Disregarded GFA subject to the overall 10% cap
a) Concession items specified in PNAP APP-151  DEEP BLUE 30, 144, 255
  b) Others  LIGHT BLUE 144, 214, 236

Table 1 Colour Code System for GFA diagrams

Guidelines for Using Building Information Modelling – Site Area and SC Diagram

Leave a reply
  • Site Area and SC Diagram

Site area and SC diagram should contain the following information, if applicable, but not limited to:

(a)Site boundary lines and dimensions as appropriate,
(b)Outlines of the roof covered area highlighting in colour or with explicit
 annotation and dimensions as appropriate,
(c)Sufficient labelling on different buildings with their corresponding roof
 covered area, and
(d)Corresponding schedule and calculation.

Guidelines for Using Building Information Modelling – Fire Compartment Diagram

Leave a reply
  • Fire Compartment Diagram

Fire Compartment Diagram should contain the following information, if applicable, but not limited to:

  • Grids and grid dimensions as appropriate,
    • Essential     dimensions     and     sufficient     labelling    to                   demarcate compartments,
    • Delineation of various compartments preferably with different colour,
    • Indication of compartments diagram with the corresponding halftone under laying floor plans as appropriate, and
    • Corresponding schedule and calculation.

Guidelines for Using Building Information Modelling – Open Space Diagram

Leave a reply
  • Open Space Diagram

Open Space Diagram should contain the following information, if applicable, but not limited to:

  • The location and dimensions of open space with reference to the site classification, and
    • Corresponding schedule and calculation.

Guidelines for Using Building Information Modelling – EVA Diagram

Leave a reply
  • EVA Diagram

EVA Diagram should contain the following information, if applicable, but not limited to:

  • Demonstration of compliance with the Regulation 41D of the B(P)R, Part D of Code of Practice for Fire Safety in Buildings 2011 (FS Code) and PNAP APP-136 (such as calculation of the total perimeter of the building and length of major façade),
    • Principal dimensions showing the building perimeter and façade served by EVA as appropriate,
    • Demarcation of the EVA and the major façade, and
    • Corresponding schedule and calculation.

Guidelines for Using Building Information Modelling – Details

Leave a reply
  • Details

Details should contain the following information, if applicable, but not limited

to: 
(a)Sufficient labelling to identify the location of details,
(b)Sufficient labelling to identify typical and non-typical details, and
(c)Sufficient critical dimensions, levels and design of building components
 in compliance with the BO and its regulations, relevant PNAPs and
 circular letters.

Typical examples for details required under various PNAPs include gas aperture, utility platform, balcony, A/C platform, curtain wall, non-structural prefabricated external wall, sunken slab, protective barrier, accessible toilet, tactile warning strips for escalators, projecting windows, acoustic windows, acoustic fins, vertical greening, cladding, vertical barrier at atrium, details of modular integrated construction, etc.

It is the common practice to use 2D details created by CAD, to complement the BIM model. CAD is also one of the acceptable computer softwares under Appendix F of PNAP ADM-19. BD is ready to accept the details produced by CAD or BIM provided that APs have clearly indicated the software in their  GBP electronic files.

Guidelines for Using Building Information Modelling – Section and Elevation

Leave a reply
  • Section and Elevation

Section and elevation should contain the following information, if applicable, but not limited to:

  • Grids and grid dimensions showing principal dimensions of the building as appropriate,
    • Floor to floor height regarding structural floor levels,
    • Each floor level in HKPD,
    • Indication with dimensions of architectural features, projections, cladding and curtain wall, if any,
    • Street levels adjoining to corresponding section/ elevation,
    • Building height under the Building (Planning) Regulations (B(P)R) with reference to mean street level,
    • Building height restriction limit (mPD) under statutory town plans and government leases as stipulated in Joint Practice Note (JPN) No. 5, and
    • Colour code according to PNAP ADM-9.

Guidelines for Using Building Information Modelling – Floor Plan

Leave a reply
  • Floor Plan

The floor plan should contain the following information, if applicable, but not limited to:

  • Demonstration of compliance with the BO and its regulations as well as the prescriptive requirements stipulated in various codes of practices, PNAPs and circular letters,
    • Grids and grid dimensions showing principal dimensions of the building, as well as the distance between structural columns,
    • Elevation and section marks for the corresponding view,
    • Wall thickness,
    • Room/space usage/building line above/door marks,
    • Dimensions     showing     the     size     of     rooms,     the                        width         of corridors/staircases, etc.,
    • Indication with dimensions of architectural features, projections, cladding, curtain wall, if any, and
    • Colour code according to PNAP ADM-9.

Guidelines for Using Building Information Modelling – Block / Key Plan

Leave a reply

5.1.1  Block / Key Plan

Block / Key plan scale not less than 1:500, should contain the following information, if applicable, but not limited to:

(a)Site boundary,      
(b)Site area coloured in pink (recommended RGB: 255,218,236), 
(c)Lot number,      
(d)Specified streets for site classification,    
(e)Boundarycoordinatesanddimensions(examplesasillustratedin
Section 5.3.3),
(f)Location of vehicular run-in/out,    
(g)The extent of special areas (e.g. Scheduled Area, non-building area,
green/yellow/brown/special areas under the lease), and
(h)North direction symbol.