STEELWORKS - A - HA11 kV SGS1 - FABRICATE AND ERECT STRUCTURAL STEELWORK

Oct 23, 2026

Uploaded by Kurz

Specifications for fabricating and erecting structural steelwork for an 11 kV SGS1 switchgear trench rail arrangement. Requirements reference Australian Standards for steelwork compliance, welded joints (including fillet and full penetration butt welds), bolt types and grades, galvanizing and surface protection, and design/yield strength limits for rolled and hollow sections. Includes shop drawing and approval workflow, inspection and NDT requirements, member schedules, and installation details such as grout backing, concrete encasement cover, and load-bearing splice and connection rules.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages1

Reading Time3 min

AccessFree to download

Fabrication and erection requirements

Welding, bolts, and surface protection

Yield strength and section compliance

Shop drawings, approvals, and inspection

6 2 5 8 10 1 3 4 7 9 12 11 STEELWORKSST A HA11 kV SGS1.S1.FABRICATE AND ERECT STRUCTURAL STEELWORK IN ACCORDANCE WITH AS4100. 6mm STITCH WELD HIT 10mm SHELF PLATE(75 WIDE)FULL100/MISS 150 BOTH SIDESS2. FABRICATOR TO INFORM EVO ENERGY IF IMPORTED STEEL IS PROPOSED TO BES2. USEDLENGTH OF SB1. 6mm STITCH WELDHIT 50/MISS 150.SECURE SWITCH GEAR IN ACCORDANCES3. S3. FABRICATOR SHALL PREPARE SHOP DRAWINGS AND SUBMIT THEM TO THE3000WITH MANUFACTURER'S REQUIREMENTSBUILDER FOR THEIR APPROVAL.BUILDER SHALL LODGE TWO HARD COPIES OFGCAST IN ANGLE TO MIN.6 CHECKERPLATE TO EVOENERGY SPECIFICATIONS2USING 10mm×150mm PLAT AND SOILDAPPROVED DRAWINGS TO EVO ENERGY FOR APPROVAL PRIOR TO FABRICATION.BACKING FULL LENGTH OF PFC,STOPS 10mm BEFORE AND AFTER CROSS SB1.S4. S4. UNLESS NOTED OTHERWISE,USE:-10mm GUSSET,FIN AND END PLATES.-M20SB1SB1FSB8.8/S BOLTS.-6mm CONTINUOUS FILLET WELDS MADE WITH E4818 MILD STEELELECTRODES.-ALL WELDS SP CATEGORY TO AS1554.-8.8/TB BOLTS ATBBEAM SPLICE LOCATIONS.EVENLY DISTRIBUTED LOAD OF 432 kg/mBSOLID BACKINGS5. S5. ALL BOLTS,SCREWS,HOLD DOWN BOLTS,MASONRY ANCHORS SHALL BE HOTOTHERSDIP GALVANIZED T0 AS1214 AND AS1650.UNLESS NOTED OTHERWISE ALL BOLTSB4/M16 CHEMSET BOLTS MIN.150SHALL BE M208.8/S.NO CONNECTION SHALL HAVE LESS THAN 2 BOLTS.ALLEMBEDMENT INTO EXISTING SLAB 10 mmHOLES SHALL BE 2mm LARGER THAN THE BOLT DIAMETER UNLESS NOTEDBASE PLATE.TO BE CONFIRMED ON SITE PRIOR TOOTHERWISE. 400MAX. EXISTING TRENCH DESIGN BY 20 GROUT PLANCONSTRUCTION.S6. ALL STRUCTURAL STEEL TO COMPLY WITH AS1163,AS1594,AS3678,AS3679S6. ENSURE TOP OF SB1 FLUSH WITHPART 1AND PART 2 AS PER SECTION TYPE,WITH MINIMUM YIELD STRESS:-HOTFL0OR LEVEL.2×10 PL.+4/M12 BOLTS.ROLLED SECTIONS=300MPa.-SQUARE HOLLOW SECTIONS=350MPa.- 6mm FILLET WELDRECTANGULAR HOLLOW SECTIONS=450MPa.-CIRCULAR HOLLOW SECTION= C350MPa.-HOT ROLLED PLATE=250MPa. # S7.S7.COLD FORMED SECTIONS TO CONFORM WITH AS/NZS4600,AS1397 AND AS1595.-SB1SBSBICDetailD2SECTIONMINIMUM YIELD STRESSES SECTIONS 3=450MPa.S8.S8.SURFACE TREATMENT UNLESS NOTED OTHERWISE,FOR 25 YEARS TO FIRSTSCALE 1:10SCALE 1:20MAINTENANCE:-PROTECTED FROM WEATHER-AS/NZ2312-ALK2.-EXPOSED2×10 PL.+4/M12 BOLTS.2M12-10mm CLEATTTO WEATHER-AS/NZ2312-IZS1.ON EXTERNAL,EXPOSED TO WEATHER6mm FILLET WELD TO PFC&SC1FILLET WELDED TO SB1O SB1.PAINTED ELEMENTS,APPLY PRIMER STRIP COATING TO ALL CORNERS ANDEmin.=25mmSHARP EDGES.-BUILT INTO AN EXTERNAL MASONRY WALL-AS/NZ2312-IZS1.只D①①Pmin.=50mm-IF GALVANIZING IS THE FINISHED COATING HOT DIPPED GALVANIZING SHALLBE IN ACCORDANCE WITH-AS4680.只SB1S9. S9. ALL BURIED STEELWORK TO BE ENCASED IN CONCRETE WITH A MINIMUM 50mmCOVER.SB1S9. STEELWORK ENCASED IN CONCRETE SHALL BE FREE FROM ALL L0OSE RUST,S9. 中中 LOOSE MILL SCALE,DIRT,OIL,GREASE,ETC.AND REINFORCED WITH F41FABRIC3000 OR EQUIVALENT 3mm DIA BLACK IRON WIRE. # SECTIONBDetailD1S10.S10.BOLT SYMBOLS:-4.6/S=COMMERCIAL BOLTS,GRADE 4.6 TO AS/NZS1111,SNUGFIT.-8.8/S=HIGH STRENGTH BOLTS,GRADE 8.8 T0 AS/NZS1254,SNUG FIT.-SCALE 1:108.8/TF=HIGH STRENGTH BOLTS,GRADE 8.8 T0 AS/NZS1254,FULLY TENSIONEDSCALE 1:20NOT FRICTION TYPE (USE LOAD INDICATOR WASHERS).-8.8/TB=HIGHSTRENGTH BOLTS,GRADE 8.8 T0 AS/NZS1254,FULLY TENSIONED BEARINGTYPE (USE LOAD INDICATOR WASHERS).ES11. THE CONTRACTOR SHALL SUPPLY WRITTEN CERTIFICATION TO THE STRUCTURALS11. ENGINEER PRIOR TO THE ERECTION OF ANY STRUCTURAL STEEL STATING THATTHE BOLTS PROPOSED TO BE USED COMPLY WITH AS1252.HIGH STRENGTHBOLTS(8.8)ARE NOT T0 BE WELDED.SECTIONHS12.NO PAINT ON MATING SURFACES WITH TF BOLTING UNLESS APPROVED BYS12.SCALE 1:20ENGINEER.PREPARE SURFACES FOR TF CONNECTIONS IN ACCORDANCE WITH SECTION 14.3.6 OF AS4100. S13.BOLTS T0 BE INSTALLED WITH ONE HARDENED WASHER UNDER THE TURNEDS13. PART. S14.USE LOAD INDICATING WASHERS FOR ALL TB AND TF CONNECTIONS.S14. S15.S15.ENSURE ALL BOLTS HAVE SUFFICIENT LENGTH SO THAT AT LEAST ONE FULL THREAD IS EXPOSED BEYOND THE NUT AFTER TIGHTENING.S16.THE FABRICATION AND ERECTION OF THE S

FAQs

What standards govern the structural steelwork and welding in this specification?

The document requires structural steelwork compliance with relevant Australian Standards (including AS 1163, AS 1594, AS 3678, AS 3679) and weld requirements aligned to AS 1554 series, including non-destructive examination per AS 1554.1, AS 2177.1, and AS 220.

How does the document specify bolt types and their installation conditions?

It defines commercial and high-strength bolt grades (4.6 and 8.8) and differentiates friction-related bolt types (TF/TB) using load indicator washers. It also requires sufficient bolt length for exposed threads and specifies washer use under certain connection types.

What surface treatment and corrosion protection requirements are included?

It calls for surface treatment and long-term protection, including hot-dip galvanizing to specified standards where applicable, primer strip coating on painted elements (especially at corners/sharp edges), and guidance to protect against weathering for external exposed elements.

Oct 23, 2026

Uploaded by Kurz