Category Archives: Guidelines for Using Building Information Modelling

Guidelines for Using Building Information Modelling – Open Space Calculation

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  • Open Space Calculation
  • Open space diagram and its disposition.
    • Calculation of required / provided open space.

OPEN SPACE REQUIRED :

(CALCULATION REFER DWG. NO. C056 )

1 / 4 OF DOMESTIC ROOF OVER 
AREA=511.531 s.m.x0.250
 =127.883 s.m.  
   =  715.319 s.m.  > 127.883 s.m.

Figure 23 Example of Open Space Calculation

  • 5.3.5        Computation for GFA Concession Requirements
  • Pre-requisites under PNAP APP-151 and 152, if applicable, should be provided.

5.3.6        List of GFA Concessions

  • Table showing all GFA concession items under Appendix A of PNAP APP- 151 and Appendices G and H of PNAP ADM-2 should be provided, and
    • Exempted GFA without ceiling cap and GFA subject to 10% cap under PNAP APP-151 should be provided.

Guidelines for Using Building Information Modelling – Site Classification, Summary of SC and PR Calculation

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  • Site Classification, Summary of SC and PR Calculation

Demonstration of compliance with the following should be provided:

  • Regulations 18A, 19, 20, 21 and 23 of the B(P)R, such as information in supporting the proposed site classification, site area and PR, and
    • Calculation of permitted PR by residual method under Regulation 21(2) of the B(P)R for composite building, if applicable.

Guidelines for Using Building Information Modelling – Essential Schedules for Composing the Prescribed Plans

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  • Essential Schedules for Composing the Prescribed Plans

Apart from various views generated from the model, the following schedules  or tables should be included in the BIM file for demonstrating the statutory compliance:

  • List of drawings,
  • Site area calculation,
  • List of coordinates,
  • Development Schedule,
  • Site classification, a summary of SC and Plot Ratio (PR),
  • Open space calculation,
  • Computation for GFA concession requirements,
  • List of GFA concessions,
  • List of modifications,
  • Schedule of minimum number and width of exit doors and exit routes,
  • Schedule of discharge value,
  • Schedule of fire resistance rating (FRR) / Compartment schedule,
  • Window area calculation,
  • Schedule of sanitary fitment provisions,
  • Refuse storage and material recovery chamber calculation,
  • Floor area calculation for Telecommunications and Broadcasting (TBE)

Room, and

  • Lift shaft concession calculation.

Guidelines for Using Building Information Modelling – Diagrams Showing Compliance with the SBD Guidelines

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  • Diagrams Showing Compliance with the SBD Guidelines

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

  • Demonstration of compliance with building separation, building setback and provision of site coverage of greenery according to PNAP APP-152, and
    • Site coverage of greenery areas should be identifiable to the extent that BD can differentiate the distribution of uncovered greenery areas and green features such as water features in primary and non-primary zone according to PNAP APP-152.

Guidelines for Using Building Information Modelling – Assessment of Prescribed Windows

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5.1.1   Assessment of Prescribed Windows

Prescribed window area diagram should contain the following information, if applicable, but not limited to:

  • Prescribed window areas,
    • Rectangular horizontal plan in critical locations,
    • Openable windows either shown on floor plans or elevations,
    • Provision of windows for habitable rooms, kitchens and offices,
    • Disposition of windows,
    • In case of using a performance-based approach, diagrams showing unobstructed vision area as defined under PNAP APP-130, and
    • Corresponding schedule and calculation.

Guidelines for Using Building Information Modelling – UFA Diagram

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  • 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

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  • 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

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  • 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

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  • 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.