#2 - buildability

8/2/2019 #2 - BUILDABILITY

1/19

BSB 602

BUILDABILITY


2/19

Design details are sometimes verydifficult and even impossible to construct.

This could be resulted from design teams

not considering problems which thecontractor has to face on site.

It is also seen as a result of fragmentation between the design andconstruction practitioners

(Moore, 1998).

Introduction

BSB 602


3/19

Buildability can be defined asthe ability to construct a building

efficiently, economically and toagreed quality levels from itsconstituent materials, components

and sub assemblies.

Definition

BSB 602


4/19

Buildability is the share of theresponsibility of all those disciplineswhose constitute the multi-

disciplinary building team includingarchitects, engineers, surveyors,building contractors and sub-contractors, and not the individualresponsibility of the Architect(Griffith, 1994)

BSB 602


5/19

Principle of BuildabilityFunction &

Performance

Buildability Aesthetics Cost

DESIGNER

CONSTRUCTOR

Contract

Agreed Quality

Levels

Buildability Cost

BSB 602


6/19

CONVERSION OF CONSTRUCTION

MATERIALSMATERIALS COMPONENTS

SUBASSEMBLIES

BUILDINGBSB 602


7/19

CONVERSION OF CONSTRUCTION

MATERIALSOFF SITE

ON SITE

CONVERSION

BSB 602


8/19

Function & Performance

Buildability Aesthetics

Cost

CONVERSION TO:MATERIALS (m)

COMPONENTS ( c)

SUB-ASSEMBLIES(sa)

Efficient and economical

assembly due to: Sequences Process, Continuity and Flow, Appropriate use of Labour, Tools, Plant & Equipment, Efficient Organization andManagement

Spatial organization Environmental performance Physical characteristics Strength and stability

Appearances of m/c/sa and of thecomplete building; size, shape, colour,texture, pattern.

Experience of m/c/sa ofthe complete building;

Quality of spatialrelationships, pleasure inuse, relationship tosurroundings

Cost of conversion to m/c/sa, labour, design, transport, handling & assemble Plant, tools and equipment, provision of certain level of

durabilityBSB 602


9/19

Standardization Simplicity Single Integrated System

Design Characteristics (3S)

Repetition of grids

Sizes of

Components

Connection ofDetails

UncomplicatedBuildingConstruction

System

Simple installation

Elements that combine

components together

BSB 602


10/19

BSB 602


11/19

Structural SteelFrame

PrecastFacade

Precast

SlabPlastic

FormworkBSB 602


12/19

Usage of Components

Employment of Modular Coordination inDimensions

Key Features of Buildability Design

BSB 602


13/19

Standardized Modular Column/Beam sizes

Repeated Structural Grids Vertically Horizontal(60%)

Column/beams grouped & confined to few sizes

Column/beam sitting directly on pile caps

Other Design Consideration

BSB 602


14/19

System toilets

Precast/Preassembled Staircase

Caging/Mesh of Reinforcement

Standard Modules Windows/Door

Other Design Consideration

BSB 602


15/19

PC Column / Beam / Slab PC beam / slab and cast-in-situ column / wall / beam

PC Slab and cat-in-situ column / wall / beam Repetition of components

Repetitive Factor

Consider Horizontal & Vertical Repetition

Precast Concrete (PC) Construction

BSB 602


16/19

Precast concrete panels

Metal Cladding

Traditional Design

Repetition of components.

Wall Components

BSB 602


17/19

Steel Frame, RC Slab on Steel Decking

Steel Frame on composite RC encasement on

wall/beam/column

Steel Frames with structural encasement for

wall/beam/column

Structural Steel System

BSB 602


18/19

Structural Steel System

BSB 602


19/19

Efficient and economical assembly resultingfrom: Sequence

Process

Continuity and Flow

Appropriate use of labour

Appropriate tools, plant and equipment Efficient organization and management

Buildability - Summary

BSB 602

#2 - buildability

Documents