现有一期工程

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SUPERSTRUCTURE

WORKSTOEXISTINGPHASE1SWITCHINGSTATION

DEMOLITIONOFEXTERNALSTAIRCASE

1

Demolishandremoveexistingreinforcedconcreteexternalstaircasewithassociatedfootingandbearingwalloverallsizeapproximate5275mmlongx3525mmwidex6370mmhigh;includingdesignofoveralldemolitionsequence,provisionoftemporaryrailingwithwarningsign/noticestofenchofftheworkingarea,provisionofproppingsupportandstairflightsdemolition,anyexcavationandlateralsupportworksrequiredtodemolishthefooting,backfillingandreinstatementofthearea,transportationanddisposalofdemolishedelements,temporaryprotectionworks,removalofalltemporaryworksuponcompletion;allasrequiredbytheBuildingRegulationsand/orasdirectedbyandtothesatisfactionoftheEngineer,allasDrawingNos.550/03/034/2386and550/03/034/2387.

1

Item

WorktoexistingPhaseIbuildingfornewstaircase(ST-03)asdetailonDrawingNos.552/03/034/1001,552/03/034/1002,

552/03/034/1003and552/03/034/1702

2

Takedownandremoveexistinglouvre(ML-22)overallsizeapproximate1975x1300mmhighandsubsequentlysealuptheopeningwithplastered150mmthickconcretewithPUpaintoninternalsize,includingmakinggoodallworksdisturbed,allasdirectedbytheEngineer.

1

No.

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3

Takedownandremoveexistingwindow

1

No.

(W11)overallsizeapproximate3150x1000

mmhighandsubsequentlysealuptheopening

withplastered150mmthickconcretewithPU

paintoninternalsize,includingmakinggood

allworksdisturbed,allasdirectedbythe

Engineer.

4

Breakup,sawcutandremovetheexisting

1

No.

reinforcedconcretewalltoformopeningin

overallsizeapproximate1500x2600mm

high,makinggoodallworksdisturbedand

cartingawayalldebris.

5

Design,supplyandinstalltemporary5000

1

Item

mmhighdustproofsteelboardingwithcover

andsubsequentlyremoveaftercompletionof

constructionofStaircaseST-3.

6

Takedownandremoveexistingcorrugated

355

Sup.

sheetandincludingmakinggoodallworks

disturbed,allasdirectedbytheEngineer.

7

Takedownandremoveexistingfire-rated

9

Sup.

partitionandincludingmakinggoodallworks

disturbed,allasdirectedbytheEngineer.

Expansionjoints,etc.asdetailedonDrawing

No.552/03/034/1701

8

Expansionjointcomprising"FOSROC

32

Run

EXPANDAFOAM"orotherapproved

polyethylenejointfiller,"SILICON"sealant,

1.5mmThickstainlesssteelflashingfixedto

newwall'sgroovewithM8stainlesssteel

anchorin400mmcentre-to-centre,25x25

mmhighgroovewithwaterproofinggrouting.

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9

10

11

12

"BALCOorapprovedequivalent75FWPE-1"walltowallexpansionjoint.

"BALCOorapprovedequivalentSS9WC-1"wallcornerexpansionjoint.

"BALCOorapprovedequivalentXH4FS-1M"floorexpansionjoint.

"BALCOorapprovedequivalent75FWPE-1"ceilingexpansionjoint.

20

92

30

30

Run

Run

Run

Run

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SUPERSTRUCTURE

WORKSTOEXISTINGPHASE1SWITCHINGSTATION

COLLECTION

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