Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...
Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...
Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...
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2.3.7.2 A compartment wall or compartment floor shall have no<br />
open<strong>in</strong>gs <strong>in</strong> it, except <strong>for</strong>:<br />
(a) A door which has the same fire resistance rat<strong>in</strong>g as the<br />
compartment wall and complies with the relevant<br />
requirements of Cl. 2.3.4, unless permitted by other<br />
provisions of the <strong>Standard</strong>, or<br />
(b) A protected shaft which complies with the<br />
requirements of Cl. 2.3.8, or<br />
(c) The passage of a pipe or ventilation duct,<br />
Such open<strong>in</strong>gs <strong>in</strong> the compartment wall or compartment floor<br />
shall be protected to comply with the relevant provisions of<br />
Cl. 2.3.9.<br />
2.3.7.3 Where a compartment wall or compartment floor <strong>for</strong>ms a<br />
junction with any structure compris<strong>in</strong>g any other<br />
compartment wall, or any external wall, separat<strong>in</strong>g wall or<br />
structure enclos<strong>in</strong>g a protected shaft, such structures shall be<br />
bonded together at the junctions or the junctions shall be firestopped<br />
to comply with the requirements of Cl. 2.3.12.<br />
2.3.7.4 Where a compartment wall <strong>for</strong>ms a junction with a roof, such<br />
compartment wall shall be carried up to <strong>for</strong>m a close jo<strong>in</strong>t<br />
with the underside of the roof and shall be properly firestopped<br />
or shall be carried up above the level of the roof<br />
cover<strong>in</strong>g and the junctions between such compartment wall<br />
and roof shall be properly fire-stopped so as not to render<br />
<strong>in</strong>effective the resistance of such compartment wall to the<br />
effects of the spread of fire.<br />
2.3.7.5 No combustible material shall be built <strong>in</strong>to, carried through<br />
or carried across the ends of any compartment wall or<br />
compartment floor or carried over the top of any<br />
compartment wall <strong>in</strong> such a manner as to render <strong>in</strong>effective<br />
the resistance of such wall or floor to the effects of the spread<br />
of fire.<br />
2.3.8 PROTECTED SHAFTS<br />
2.3.8.1 A protected shaft shall not be used <strong>for</strong> any purpose additional<br />
to those given as def<strong>in</strong>ed under Cl. 2.1.2.57.<br />
2.3.8.2 Every protected shaft shall be required to:<br />
(a) Form a complete barrier to fire between the different<br />
compartments which the shaft connects, and<br />
Open<strong>in</strong>gs <strong>in</strong><br />
compartment<br />
walls or<br />
compartment<br />
floors<br />
Junction with<br />
other<br />
structures<br />
Compartment<br />
wall - roof<br />
junctions<br />
Prohibition of<br />
combustible<br />
materials<br />
Purpose of<br />
protected shaft<br />
Requirements<br />
of protected<br />
shaft<br />
<strong>Standard</strong> <strong>for</strong> <strong>Fire</strong> <strong>Safety</strong> <strong>in</strong> <strong>Rapid</strong> <strong>Transit</strong> <strong>Systems</strong> 61
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