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Test Standards


Test Standards

Steel Preparation

Fire Protection

Building Regulations

Technical

Fire Precautions


Test Standards

BS476:

Part 5 - Ignitability (Cladding Panels)

Part 6 - Fire Propogation (Heat emitted by cladding material)

Part 7 - Spread of flame (Speed of flame spread across a cladding material)

Part 20 - General principles of testing Structural Elements

Part 21 - Load bearing elements of construction

Part 22 - Non load bearing elements of construction

Part 23 - Contributions of components to the fire resistance of a structure

Part 24 - Ventilation ducts

European:

EN 1363-1 General requirements

EN 1363-2 Alternatives and additional procedures

EN 1364-1 Non-loadbearing walls

EN 1364-2 Ceilings

EN 1365-1 Loadbearing walls

EN 1365-2 Floors and roofs

EN 1365-3 Beams

EN 1365-4 Columns

EN 1366-1 Ducts

EN 1366-2 Dampers

EN 1364-1 Fire doors and shutters

Design of Steel structures in fire:

BS5950: Part 8

Structural Codes-EN1993-1.2 and EN1994-1.2

Fire Engineering principles:

BS7974: Code of Practice for the application of fire safety principles to the design of buildings

BS999: Code of Practice for the fire safety in the design, management and use of buildings

Steel Preparation

Blast Cleaning - :

SA 1 grade . Light Blast cleaning

SA 2 grade . Thorough Blast cleaning

SA 2 grade . Very Thorough Blast cleaning for general structural steel

SA 3 grade . Maximum Blast to provide visually clean steel

Hand & Power Tool Cleaning -

ST 2 grade . Thorough cleaning

ST 3 grade . Very Thorough cleaning

Galvanising -

New Structural steelwork - BS729 : 1971 (1986)

Fire Protection

Fire Protection of Building Elements : BS8202 : 1992

Part 1 -

Part 2 - Code of Practice for the use of Intumescent coatings

Part 8 . Fire Resistant design of Steelwork

Building Regulations

Approved Documents B :

B1 . Means of Escape

B2 . Internal Fire Spread (linings)

B3 . Internal Fire Spread (Structure)

B4 . External fire Spread

B5 . Access and Facilities for the Fire Service

Technical

Definitions

Volume Solids (VS) - The % of solids by volume in a solution

Specific Gravity (SG) - The density of a substance compared with water

Dry Film Thickness (DFT) - The final thickness of a coating once fully dry

Wet Film Thickness (WFT) - The thickness of a coating immediately upon application

Formulae

Hp/A of steel member = Exposed or Heated Perimeter (M) / Cross Sectional Area (M)

DFT (mm) = WFT (mm) x VS(%)

Grammes/m2 = Litres/m2 x SG

Densities of Materials

Steel (mild) - 7849 Kg/m3

Concrete (Structural) - 1760 Kg/m3, typical

Brick - 216 Kg/m2/100mm skin, typical

Plaster - 176 Kg/m2/100mm thickness

Timber (Softwood) - 480 Kg/m3, typical

Timber (Hardwood) - 528 Kg/m3, typical

Fire Precautions


BS5588 : Fire Precautions in the Design, Construction and the Use of Buildings Fire Precautions Act 1971 Primary legislation controlling the fire precautions and the means of escape of buildings once occupied
Fire Terms and Definitions : (In line with Approved Documents B: Appendix E)
Cavity Barrier :

An item that closes a concealed space against penetration or restriction of flame or smoke

Compartment Floor or Wall :

A fire resisting floor/wall used to separate one fire compartment from another

Element of Structure :

A beam column or other element of structural frame

A load bearing wall or part of

- A Floor

- A Gallery

- An External Wall

- A Compartment Wall

Fire-resisting (Fire resistance) :

the ability of a component or construction of a building to satisfy for a stated period of time, some or all of the relevant criteria of BS476

Means of Escape :

Provision of safe routes provided for persons to move from any point in a building to a place of safety

Protected Shaft :

A fire resistant shaft that allows persons, objects or air to pass from one apartment to another

Protected Stairway :

A fire resistant enclosed stair that opens directly to a place of safety