Introduction to Drawings [ARC30103]

HOR WENG LIM (0319441)

WAH YUN CHEN (0319115)

FELIX VONG ZHI WEI (0318462)

CHONG WAI LOON (0319745)

AARON NGU NGUOK SOON (0319396)

What is a Quantity Surveyor (QS)?

•  Calculates the amount of materials needed

•  Manage all costs associated with all types of construction projects

•  Commercial and practical elements of construction

Private practice, for local authorities or for a contractor.

What do Quantity Surveyor do? •  Apply building economics and provide estimates at planning stage.

•  Prepare the Bill of Quantities from plans, describing the material, items of work and the quantities required.

•  Analyze tenders, prepare and analyze cost data, assess variations, negotiate claims, value complex structures and buildings.

•  Construction Cost Consultants, Building / Construction Economists, Cost Engineers or Estimators.

•  Types and function of drawings - Quantity surveyor draw basic straight or curve line for certain measurement.

•  Stages that involves in a Quantity Surveyor - Before a project starts, the project manager will hire a quantity surveyor which is help to calculate the estimating budget and materials for the whole project. - Quantity Surveyor involved in every parts of construction.

The various stages of cost planning during the design & construction phases

Preliminary Estimate

Cost Plan

Cost Check

Tender Reconcilation

Post-Contract Cost Control

Using a single-price method of estimating

Based upon elemental analysis evolving cost target

Evaluating the design in term of the cost target

Comparison of the accepted tender with the final cost plan

The control of cost during construction

Provide full Estimating and Tendering solutions to clients, including Main Contractors and Sub-Contractors.

Estimating & Tendering for Main Contractors & Sub-Contractors

•  Builders Quantities produced from drawings and specifications •  Preparation and submission of accurate competitive estimates •  Following up on submitted tenders to secure projects for Clients •  Negotiating submitted contracts

VALUATION Provide an accurate and detailed valuations / applications for payment solution for contractors and sub-contractors in order to value the works completed on-site and to ensure that the work completed is paid for. The Valuations service which we provide to main contractors and sub-contractors.

PREPARING VALUATION •  Preliminaries •  Measured works •  Valuation of architect's instructions or variations •  Valuation of nominated subcontractors and suppliers •  Unfixed materials on site and, where allowable, materials off-site •  Fluctuations, where they are allowed within the contract provisions

What is Tender ?

Tender : process submitting a proposal Prepared by : competing firm for there bidding to get the construction

•  A kind of contract mostly followed by public companies. When government want to construct big projects. •  The government ask to give there quotation and start the bidding process.

Tenders documents may include: •  A letter of invitation to tender •  Preliminaries: including pre-construction information and site waste management plan •  The form of contract, contract conditions and amendments •  A tender pricing document (or contract sum analysis on design and build projects) •  A drawing schedule •  Design drawings •  Specifications

What is tender drawing?

•  Produced by an architect.

•  Used for estimating or pricing the cost of the building. •  Issued project tendering stages. •  It is also a submission make an offer to the contractor.

Example of a Bills of Quantities (prepared by QS)

Example of Calculation of element of Quantity Surveying

What is Construction Drawings ?

•  The construction drawings are the graphic & written record of decisions made during the design process. They consist of the final drawings, details and specifications and are used to communicate the design intent for construction.

•  This Drawing must be included in : Walls, doors, furniture, equipment, lighting, outlets,

demolition and so on, are all specified. Graphic symbols are used to represent walls, doors, furniture, etc.

What to look for in a good set of Construction Drawings ?

•  Floor Plans •  Cover Sheet •  Roof Plan •  Site Plan •  3D Axonometric Views •  Building Sections •  Wall Sections & Details •  Electrical and Foundation Plans •  Interior & Exterior Elevations •  Detail Specification

Bricks Timbers

Rammed Earth Wattle & Daub

Metal Sheet Plaster & Board

Sod Poles

Sands Stones