Core Grating Products09

Core Products M a n u a l

Queensgate Works, Bilston Road, Wolverhampton, West Midlands WV2 2nJ Tel: 01902 451733 Fax: 01902 452256

Email: [email protected]

Manufacturers and Installers of:

Flooring

Heavy Duty Gratings

Walkways

Staircases

Platforms

ladders

Duct Covers

Ball Type Handrail Systems

Flush Welded Handrail Systems

architectural Balustrades

Screens

access Covers

Component Fabrication

in Mild Steel

Stainless Steel

aluminium

& GRP

Steelway Fensecure has displayed for over eighty years the expertise for design, manufacture and installation of our specialised equipment.

We offer our customers the assurance of equipment complying with relevant British Standards, Code of Practice and Building Regulations backed up by quality assurance control in our works. architects, engineers and others now have the benefit of our experience brought together in this Catalogue of products engineered by Steelway Fensecure. Guidance will readily be given by our Engineers for the

specification and type of Steelway Fensecure equipment most suitable for your project. This help is available from the outset when the initial plans are being drawn up. It will prove invaluable to the architect, Engineer and Draughtsman alike.

Steelway Fensecure are frequently asked, not only to manufacture and supply equipment, but also to assemble and erect installations on site. Experienced teams of Steelway erectors undertake this work, controlled from the Wolverhampton works, they operate in all parts of the u.K. mainland.

In the interest of quality and customer service, we pursue a policy of continuous product development and reserve the right to modify product designs without notice. Due to the limitations of space we have not been able to illustrate our complete product range. Please enquire if you do not find the products that fulfil your requirements - we may still be able to help you.

We feel that our growing number of customers reflect the confidence they have in us to provide the products and service they require.

We offer:Free advice.Free Preliminary Surveys.*Free estimates and specification.Drawings for approval prior to manufacture.Full manufacturing facilities.On site assembly and erection service.*

* u.K. only.

E X P E R T S I N S T E E L

HOT DIP GALVANISED

COATING THICKNESSES TO BSENISO 1461

ARTICLE AND ITS THICKNESS

MEAN COATING THICKNESS (MINIMUM)

STEEL >/= 6mm

STEEL >/= 3mm to < 6mm

STEEL >/= 1.5mm to < 3mm

STEEL < 1.5mm

85 MICRONS

70 MICRONS

55 MICRONS

45 MICRONS

1Key1. Adjustable fixing clip, TyTyT pe, FC2,

can be used with all depths ofSteelway flooring listed on page 2and will secure panels to almost anysupport. TwTwT o clip assemblies areprovided with each panel whenrequired. Fix to straight bars.

2. Steelway mild steel diamondpattern open mesh flooring ofall welded construction.

3. Straight bar (load bearing bars).

4. Pressed bar,r,r acts as spacer andtransmits localised loads to adjacentload-bearing bars.

5. Strong stich welded joints.

6. Nosing bar (binding bar) 5mmthick flat bar welded along thespan edge of all panels.Nosing bars are not intendedto be load bearing.

7. Every fourth or fifth straight barand the edge bars are stronglywelded to the nosing bars.

8. Erection marks are steel stampedin the centre of nosing bars - seedrawing below.

AvAvA ailable inMild SteelStainless SteelAluminium

Unless otherwise specified, mild steelflooring will be given one coat ofblack paint, suitable only for internaldry conditions. A galvanised finish isrequired for external or dampconditions

Open Type Flooring - Diamond Pattern

Steel stamped location markon nosing bar(span edge of panel)

Edge barAdjustable clip

Welded

1Support

Depth

2mm Thick clipplate pressingNut

Top clip3mm thick material

M8 Hex. Bolt

Correct (Right)

Span or directionof Straight Bearing Bar(length of panel) Width of panel

Incorrect (Wrong)Ends of LoadBearing Bars are not supported

GRP ProductsComplete support structures are available constructed from GRP sections with stainless steel fixings,in both fire and non fire retardant GRP materials

TyTyT pe 'FC2' clip assemblyif ordered as a separaateitem, please stateflooring type ref

Safe Load Tables for Mild Steel Diamond Pattern Flooring Bases for Tubular Standards Type ST

2

Deflection limited to span/200 or 10mm whichever is lesser.Loads shown to the right of the thick blue line are below 5 kN/m2 the minimum design requirements of BS.4592.Note: We also manufacture open type flooring of a similar pattern constructed from aluminium.For safe loads on aluminium flooring multiply tabular loads by 0.35.

1 kN/m2 = 101.9718 kg f/f/f m2 = 20.8854 Ib f/f/f f/f/ t2.

Depth offlooring inmm andTyTyT pe Ref.

Straightbar and

(pressed bar)

Massin

Kgs/m2 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4

TaTaT bulated loads (UDL) in kN per m2 for spans in metresU.D.L.

RL RR

20FL20L

20 x 3(20 x 3)

25 x 3(20 x 3)

25 x 5(20 x 3)

35 x 3(25 x 3)

35 x 5(25 x 3)

40 x 5(25 x 3)

45 x 5(25 x 3)

50 x 5(25 x 3)

28.8 20.5 14.9 10.0 7.0 5.1 3.3

32.5 23.9 18.3 13.5 9.8 5.7 3.6 2.3

48.1 35.3 27.0 20.1 14.7 8.5 5.4 3.6 2.0 1.0

61.6 45.3 34.7 27.4 22.2 15.0 9.4 6.3 4.4 2.2 1.2

92.2 67.7 51.9 41.0 33.2 22.7 14.3 9.6 6.7 4.9 2.0 1.0

118 86.6 66.3 52.4 42.5 29.5 20.9 14.0 9.8 7.2 4.9 1.9

147 108 82.7 65.4 53.0 36.8 27.0 19.7 13.8 10.1 6.9 4.9

180 132 101 79.9 64.7 44.9 33.0 25.3 18.8 13.7 9.4 6.6

32.4

41.0

43.1

55.2

60.8

66.3

71.8

25FL25L

25FL25H

35FL35L

35FL35H

40FL40H

45FL45H

50FL50H

Covers can be supplied in a range ofdepths from 30mm (FLP 30) to 55mmFLP 55).

For particularly slippery conditions acarborundum surface finish for solidcovers is available.

FLP floor covers and open typeflooring panels have been usedextensively for raised flooringsystems, thus allowing easy access toservices below should the need arise.

Example: FLP 30 is FL 25 + 4.5mmplate cover.

TYPE FLSSteelway TyTyT pe FLS serrated flooringis available ranging in depths from25mm (TyTyT pe FLS 25) up to 50mmTyTyT pe FLS 50).Pressed spacer bars havea serrated edge providing extra gripfor the user on the walking surface.Serrated flooring, apart from theserrated surface, is supplied inpanels of similar specification toour standards TyTyT pe FLLL flooring.

TYPE FLPTyTyT pe FLP flooring has a solid surface of4.5mm thick non-slip Durbar patternplate or alternatively plain surface plateas preferred, welded to the top face oftype FLLL open flooring. TyTyT pe FLP coversmay be used alongside type FLLL or FLSflooring of matching depth, without atrip, to provide a virtually sealed floorarea over machinery or other sensitiveequipment, whilst retaining theadvantage of open type flooring in otherareas. This type of cover also providesbetter distribution of highly concentratedpoint loads across a panel without theusual distortion.

TYPE FLP OPEN TYPE FLOORINGwith integral solid flooor plate.

TYPE FLS OOPPEENN TTYYPPEE FFLLOOOORRIINNGGwith serrated edge.

Bases for Solid Standards Type S

Heavy Duty Bases Type HS

TaTaT bulated Load arecalculated to amaximum stressof 140N/mm2

NEW INSIDES 09.qxd:INSIDE PAGES (FILM SETUP) 6/5/09 17:28 Page 2

Handrail Standards Safe Load Tables for Concentrated Loads

3

Depth ofSectionand

TyTyT pe Ref.

AvAvA erageMassin

Kgs/m2 0.6

9.87

19.2

38.5

48.1

57.2

71.7

85.0

109

129

7.90

15.4

30.8

38.5

45.7

57.4

68.0

87.4

103

6.58

12.8

25.7

32.1

38.1

47.8

57.6

72.9

86.1

5.92

11.5

23.1

28.8

34.3

43.1

51.0

65.6

77.5

4.74

9.24

18.5

23.1

27.4

34.4

40.8

52.5

62.0

3.33

7.70

15.4

19.2

22.9

28.7

34.0

43.7

51.7

2.45

6.60

13.2

16.5

19.6

24.6

29.1

37.5

44.3

1.88

5.19

11.5

14.4

17.1

21.5

25.5

32.8

38.8

0.75 0.9 1.0 1.25 1.5 1.75 2.0

TaTaT bulated Point Loads (Concentrated on Min. Area of 200 x 200mm) in kN for Spans in Metres

35FL35H 55.2

71.8

114

137

135

163

190

215

246

50FL50H65

FL65H665

FL65H880

FL80H680

FL80H880

FL80H10100

FL100H8100

FL100H10

147 118 98.3 88.4 70.7 58.9 50.5 44.2276100FL100H12

On Mild Steel Diamond Pattern heavy duty opentype covers subject to loads applied by slow movingroad vehicles with pneumatic tyres. Where coversare subject to other types of usage e.g. Fork LiftTrucks etc. a specific enquiry should be made.

Mild Steel Angle CurbFor straight runs of duct we supply standard 3m lengths of curb.Make-up lengths are provided to obtain the correct overall lengththese are marked for identification on site. Each angle curb isprovided with joint plates and countersunk bolts to assist instalon site. Lugs are welded on at approximately 900mm centres anapproximately 150mm from each end. It is preferable, though nessential, for customers to provide a layout showing all ducts wit is proposed to have floor covers and curbing: this will allow uprovide you with drawings for your approval showing the mosteconomical arrangement.

gth,

llationnd atnotwhereus tot

ANGLE CURBING TYPE FLC FORSTEELWLWL AWAW YAYA OPEN TYPE FLOORINGIN STATAT NDARD 3M LENGTHS ORCUT TO SIZE

Mild Steel Aluminium Stainless Steel

ANGLE CURB TYPE CODE AND SIZES

FLC 20 20 8 32 100 60FLC 25 25 10 50 120 65FLC 35 35 10 30 100 80FLC 40 40 11 34 110 90FLC 45 45 11 39 110 100FLC 50 50 16 44 120 110

TyTyT peCode

Fl.Depth'A'

Clearance'B'

Bearing'C'

Min. Rebate'D' 'E'

d Loads


Rectangular Pattern Mild Steel Open Type Flooring Typical arrangement of Handrails for Stairs, Platforms and Walkways

4

Our rectangular pattern open steelgrating provides the structural benefitsof strength, light weight and goodstability,y,y constructed from mild steel,load bearing and twisted transversebars are joined together by the forgewelding process to produce a gratingwhich complies with the requirementsof BS4592 Part 1 and is suitable formany industrial applications.

Four types of standard pattern gratings arereadily available. They are designated bythe pitch (centre spacing) in mms of theload bearing and transverse bars.

Stock PanelsThese can be supplied in nominal 6m lengthsby 1m wide.

Non Standard PatternsIn addition to the standard range, otherpatterns with different pitches can be suppliedsubject to availability. Please enquire if youhave a specific requirement outside thestandard range.

Plain and Serrated Load Bearing BarsOur standard range of gratings with thespecial transverse twisted bar provide betterthan average slip resistance. Where oily or icyconditions are likely to be prevalent, thengratings with serrated edge load bearing barscan be supplied for improved grip.

Standard FinishesSelf colour,r,r painted black or galvanised toBSENISO 1461. Alternative finishes areavailable on special request.

Fixing ClipsAll gratings should be fixed securely to thesupporting structure using not less than twoclips for each panel. A range of fixing clips areavailable to suit particular applications.Standard Clip FC2 See page 1 for illustration.

Standard Range Rectangular Pattern

Load Bearing BarA longitudinal load carryingmember of uniform sectionspanning between supports.

TrTrT ansverse BarA member fixed at right angles tothe load bearing bars to providelateral restraint.

Binding BarA bar or section, of at least equalthickness to the load bearing bars,fixed to the edge of a panel,flush with the top of the loadbearing bars.

PitchThe distance centre-to-centre ofload bearing bars or centre-to-centre of transverse bars.

DepthOverall depth of load bearing bars

Length (Span)The overall dimension of a flooringpanel measured in a directionparallel with the load bearing bars.This dimension is always referredto as length even if it is shorterthan the width.

WidthThe overall dimension of a flooringpanel measured in a direction atright angles to the load bearingbars. This dimension is alwaysreferred to as width even if itexceeds the length.

Effective SpanThe clear span between supports.

FabricationYoYoY ur specific requirements are undertaken after submission of our detaileddrawings for your approval. Our proposals will provide you with the optimumlayout taking account of all requirements for cut-outs, shaping and supportingsteelwork. For ease of installation on site, each fabricated panel is hard stampedon the binding bar with an erection mark to correspond with our layout drawings.

TyTyT pe 41/100Load bearing bars at 41mm centreTTrraannsseerrvvssee bbaarrss aatt 110000mmmm cceennttrreess

TyTyT pe 30/100Load bearing bars at 30mm centreTranservse bars at 100mm centres

TTyyTyTTyT pe 30/50Load bearing bars at 30mm centreTTranservse bars at 50mm centres

TTyTyT pe 4411//5500Load bearing bars at 41mm centreeTTrraannsseerrvvssee bbaarrss aatt 5500mmmm cceennttrreess

Load bearings in 3mm and 5mm thickness and varying depths are availablefor each type of grating. See load tables for the range of sections.

Handrail & Guardrails Safe Load Tables Rectangular Pattern Mild Steel Flooring

5

LoadBearingBarsmm

MassKg/m2

*

MaxSpanmm

908

1141

1350

1367

1594

1570

1867

1816

2119

2505

2872

Clear Span in Millimetres

20 x 3

25 x 3

25 x 5

30 x 3

30 x 5

35 x 3

35 x 5

40 x 3

40 x 5

50 x 5

60 x 5

14.8

18.0

27.8

21.0

33.0

23.8

37.8

26.8

43.0

52.8

63.0

#

600

17.4 9.1 5.2 3.3

4.3

5.1 3.7

3.8

6.4 4.8

4.6

7.7 5.9 4.6

4.2

6.9 5.3 4.0

7.8 5.9

10.313.4

10.3

17.7

13.5

23.1

5.2

8.79

17.2

28.5

6.8

11.4

22.9

34.6

6.0

10.1

9.1

15.2

29.0

41.8

5.2

8.5

8.3

13.9

12.6

20.8

35.8

52.0

7.2

7.5

12.5

11.9

19.8

17.4

29.0

45.4

65.0

6.5

10.8

11.2

18.6

17.4

29.0

22.8

37.9

59.0

85.0

10.2

17.1

17.4

29.0

23.7

39.5

31.0

52.0

81.0

110

17.4

29.0

25.1

41.8

34.0

57.0

44.6

74.0

116

167

27.2

45.4

39.2

65.0

53.0

89.0

70.0

116

181

261

750 900 1050 1200 1350 1500 1650 1800 1950 2100 2250 2400

LoadBearingBarsmm

MassKg/m2

*

MaxSpanmm

973

1236

1480

1500

1747

1726

2044

1989

2271

2685

3079

Clear Span in Millimetres

20 x 3

25 x 3

25 x 5

30 x 3

30 x 5

35 x 3

35 x 5

40 x 3

40 x 5

50 x 5

60 x 5

17.7

21.7

33.8

25.4

40.3

28.8

46.2

32.6

52.7

64.8

77.5

#

600

23.0 11.9 6.9 4.4

5.7

6.7

3.9

4.9

5.0 3.8

8.4 6.3 4.9

6.0 4.6

10.0 7.7 6.1 4.6

5.4 4.1

9.1 6.9 5.3 4.0

10.3 7.9

13.717.7

13.6

23.5

17.8

30.6

6.9

11.6

22.6

37.8

9.0

15.0

29.2

45.6

8.0

13.4

11.9

19.9

38.3

55.0

6.8

11.6

11.0

18.4

16.6

27.6

47.3

68.0

9.6

9.9

16.6

15.7

26.2

23.0

38.3

60.0

86.0

8.5

14.3

14.8

24.6

23.0

38.3

30.0

50.0

78.0

113

13.6

22.5

23.0

38.3

31.3

52.0

40.9

68.0

106

153

23.0

38.3

33.1

55.2

45.1

75.0

59.0

98.0

153

221

35.9

60.0

52.0

86.0

70.0

117.0

92.0

153

239

345

750 900 1050 1200 1350 1500 1650 1800 1950 2100 2250 2400

The table below give the safe Uniformly Distributed Loads in kN/m2 for mild steel gratings with plain load bearing bars.For gratings with serrated edge load bearings bars the tabulated loads should be multiplied by 0.75 for 25 mm and30 mm deep sections and 0.80 for 35 mm and over deep sections.

The loads have been calculated to a maximum stress of 165 N/mm2 and deflections are limited to within 1/200th of thespan or 10 mm whichever is the lesser.

Note that loads shown to the right of the blue line are below 5 kN/m2 which is the minimum design requirement forgeneral duty regular two way pedestrian traffic. #The maximum span for 5 kN/m2 uniformly distributed load is statedin the end column for each section.

* For mass of TyTyT pe 30/50 add 1.8 Kg/m22

TYPES 41/100 and 41/50 Safe Uniformly Distributed Load in kN/m2

* For mass of TyTyT pe 41/50 add 1.8 Kg/m2

TYPES 30/100 and 30/50 Safe Uniformly Distributed Load in kN/m2

Aluminium tread plate, designed primarily for flooring applicationsprovides a non-slip, easy clean, hard wearing surface, which hasfound extensive use in Industrial, Marine and Transport fields.Tread plate comes in three popular patterns to suit variousconditions of service and personal preferences. Thickness forthickness, in a particular material, the load bearing characteristicsof the three patterns, are not significantly different, but a choicedoes accommodate factors such as pedestrian comfort, durability,y,yand aesthetic consideration. Applications vary from kick plates toloading ramps, from factory flooring and stairtreads toprotective facias. Supplied self-colour.

Mild Steel & Stainless Steel Floor Plate Spiral Stairs Mild Steel

6

Durbar raised pattern non-slip mild steel solid floor plate.

This plate may be used for trench covers, platforms, stair landings andstair treads. The raised leaf pattern, having no enclosures, providesincreased non-slip surface to give firm grip in all directions. Forparticularly slippery conditions a carborundum surface finish isavailable. Plates of this type are self draining and readily cleaned,therefore minimising corrosion and ensuring longer life.Trench covers, which are to be readily removed, are holed for andsupplied complete with standard lifting keys. Where necessary,y,y platare cut to clear pipework or other obstructions and are countersundrilled for securing to steelwork with fixing screws.Mild Steel Floor Plate is available in 4.5, 6.0, 8.0,10.0 and 12.5mmbase thickness. Primer Painted or Galvanised.In Stainless Steel available in grades 304L or 316L.

s

tesnk

Aluminium Tread Plate

PPGP HEAVAVA Y PATATA TERN

Mild Steel Built-up CurbingMild steel built-up curbs suitable formild steel Durbar plate trench covers.Curbs are supplied painted in standardoxide primer and can be tapped toreceive fixing screws to secure covers ifnecessaarryy. MMiilldd sstteeeell bbuuiilltt--uupp ccuurrbbiinnggcan alsso be supplied for aluminiumP.P.PG.P.P.P pplates with the mild steelmateriials suitably insulated withBitumeen of Neoprene Strip.

Standard 3-metre lengths of mildsteel built-up type curbing.For long straight runs of trench wesupply standard 3-metre lengths.Make-up lengths are provided asnneecceessssaarryy aanndd aass sshhoowwnn oonn llooccaattiioonndrawings. Joints are secured withcountersunk bolts to assistInstallation.

Lugs are welded on at approximately900mm centres and approximately150mm from each end.

Also avvailable instainleess steeland aluminium.

ONE-BAR PATATA TERN FIVE-BAR PATATA TERN

Companion Step or Ship Type Ladders Ladders

7

Chart giving useful recommendations for staircases

Section of Stringer (Mild Steel)Max. Spacing ofStays or Fixings

VeVeV rt.Ladders

SlopingLadders

65 x 10 Flat65 x 12 Flat70 x 10 Flat70 x 12 Flat80 x 10 Flat80 x 12 Flat

75 x 50 x 8 Angle100 x 65 x 8 Angle125 x 75 x 10 Angle

3.74.14.04.44.65.04.86.27.7

3.13.53.43.73.94.24.15.26.5

AvAvA ailable in steel, aluminium alloyaanndd ssttaaiinnlleessss sstteeeell.

LADDER WITH EXTENDED SIDESTYPE AAA

LADDER WITH EXTENDED SIDESTYPE B

LADDER WITH EXTENDED SIDESTYPE CC

LADDER WITH RETRACTATAT BLETUBULAR HANDHOLDTYPE D(Ladder can be supplied with orwithout retractable handhold)

TATAT BLE OF RECOMMENDED LADDER SECTIONS AND FIXING CENTRESFixing centres of stays indicated are based on good connections to steelwork.For fixings to good sound brickwork or concrete divide stated centres by 1.5.

NNote: Handrails ommittedffor clarity,y,y but musst beffitted around openningwwith either removaablecchains or self closinng gate.


Staircases & Platforms Open Type Stair Treads

8

Steelway Fensecure have wide experience in thedesign and construction of staircases, mezzaninefloors, walkways and platforms.Where required, the companys own engineers willvisit the site of a proposed installation andsubsequently

storage or for fire emergency use. These proposalsare then submitted to the customer for approval.Designs are produced to the most exactingrequirements to ensure stability and durability.

Solid Pattern Treads

Steelway Solid Mild Steel TrTrT ead with Raised Pattern-TaTaT bulated Mass in kg

Width ofTreadin mm

Preferred lengths of treads in metres and thickness in mm Hole centresin mm

A B

Hollediaa.mmm

100150200250300

3.69 4.315.30 6.17 7.056.92 8.04 9.17 10.29 14.59

11.28 16.11 17.91 19.72 26.27 28.5119.11 21.24 23.36 31.11 33.75

30 45 1240 75 1550 100 1550 100 1550 125 15

0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.206 6 6 6 8 8 10 10

RREEFF:: CCTTRR ((MMiilldd SStteeeell)) AACCTTRR ((AAlluummiinniiuumm)) SSCCTTRR ((SSttaaiinnlleessss SStteeeell))

y prepare schemes for access,

Pan-Type Treads

Staircases & Platforms Open Type Stair Treads

9

Solid Pattern Treads

AvAvA ailable in both Diamond and Rectangular Patterns, to complement the flooringrange. Steelway open type treads embody all the advantages of open steeli.e. lightweight, strong, durable, self draining, slip resistant & fire proof.AvAvA ailable in a wide range of lengths & standard widths with slip resistant no

Steelway open type treads are normally manufactured using thefollowing flooring sections.

Treads to 900mm long from 25 x 5mm section1200mm long from 30 x 5mm section1425mm long from 35 x 5mm section1500mm long from 40 x 5mm section

End plates are 65 x 5mm flat and standard end platedrilling details are given in tables.

Grano infill not suppliedby Steelway.

flooring

osing.

Pan-Type TreadsREF: PTR Nosings

Nosings can be supplied suitable forfixing to new or existing concrete ortimber steps. They are of extrudedaluminium sections with eithercarborundum, rubber or fabric infilling.Pan-Treads in any length

and the following widths.

Widthin mm

Hole centresin mmA B

225250275300

38 10038 10038 12538 125

Diamond Pattern TrTrT eads

88 15 35 12 M10

127 15 35 12 M10

166 15 75 15 M12

205 30 100 15 M12

244 30 100 15 M12

283 30 125 15 M12

322 30 175 15 M12

Tread Widthin mm

40mm Crs A BA B Hole Dia. Bolt Dia.

Hole Centresin mm

Rectangular Pattern TrTrT eadsTread Width

in mm

41/100 30/100 A BA B Hole Dia. Bolt Dia.

Hole Centresin mm

87 98 15 35 12 M10128 129 15 35 12 M10169 160 15 75 15 M12210 191 30 100 15 M12

222 30 100 15 M12251 253 30 125 15 M12

284 30 125 15 M12292 315 30 175 15 M12333 30 175 15 M12

Companion Step or Ship Type Ladders Ladders

10

This type of ladder provides an improvedmeans of access over the normal singlerun ladder when space is available.The 65 degree to 75 degree slope iseasier to negotiate than a verticalor near vertical ladder.We recommend that the maximumvertical rise should not exceed3000mm and the width betweenstringers should preferably be betweenlimits of 450mm and 550mm.It should be noted that 250mmminimum foot space should be allowedfrom the nose of treads to the wall,platform face or other obstruction, seeillustration. A top tread should beprovided at floor level, or the platformcan be arranged to run over,r,r but theminimum foot space should still bemaintained. Handrails are necessary onthis type of ladder and should beprovided on both sides withoutexception.

Chart giving useful recommendations for staircasesThis chart gives preferred rise/go dimensions see sectioncoloured yellow for any given rake of stailadder and is based on our recommendedTwTwT ice the rise plus the go = not less thannor more than 640mm (550 to 700).

Go is the term used for the horizontaldimension of a stair or tread.

Rise is the vertical dimension.

Overlap is the amount the nosingof one tread overlaps the onebelow (minimum16mm).

Example: A single flight stair has a riseof 2600mm and has to comply with aminimum tread go of 250mm and amaximum rise of 190mm. From the chartbelow we see with a go of 250mm anacceptable rise will be about 185mm.This will give 14 equal rises. The stairwill thus have an angle of rake pitchof 36 36 and will fall within the limitsrequired for this type of stair. Also theaggregate of twice the rise plus the goequals 620mm, close to the optimumrecommended in BS 5395 Part 1.

aircase ord formula:n 570mm


Mild Steel & Stainless Steel Floor Plate Spiral Stairs Mild Steel

11

Aluminium Tread Plate

Mild Steel Built-up Curbing

A spiral staircase suitable for a widerange of applications from Residentialto Industrial, and complying with therequirements of BS.5395: Part 2.AvAvA ailable in any diameter,r,r risingclockwise or anti-clockwise to suitcustomers requirements. Constructionis based on a tubular centre columnwhich is fully load bearing andcapable of supporting a landing orfloor joists. Treads are set at 221/2(16 per circle) and are constructedfrom solid Durbar pattern plate

welded to a tubular collar to fit overthe centre core column. Alternativetype treads and landings are availablesuch as pan type. Landings areprovided to fit existing situationswhere details are available or to suitnew applications. Handrails compriseof a 42.4mm dia. tube supported on20mm dia. balusters that also serve tosecure the outer extremities of thetreads, and together,r,r they form a rigidconstruction.

Additional balusters are required forstairs in residential situations in orderthat any gaps do not exceed 100mm.All parts are prefabricated for easy siteassembly. Spirals of 2.0m diameter orless require relaxation of BuildingRegulations regarding minimum treadgo. The 2.2m diameter spiral will give800mm clear width of stair when fittedwith an inside handrail to comply withBuilding Regulations.

Heavy Industrial TyTyT pe Spiral Staircase illustrated.

Handrail & Guardrails Safe Load Tables Rectangular Pattern Mild Steel Flooring

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General ApplicationAs a general rule, any unprotected edge of a walkway,y,y platform,staircase or other raised area from which a person may fall more than0.5m must be fitted with a guardrail. Steelway handrails and guardrailsare designed to provide safety and give reassurance for users ofstaircases and walkways. They may be of tubular or solid constructionor a combination of both. We supply handrails not only to complementour staircases. platforms, and other similar structures, but also ascompletely independent items to fit customers own equipment or civilengineering work etc.All component parts are tailor-made in easy to handle lengths andclearly marked for assembly on site. Drawings are provided forcustomers use where they wish to undertake the site erectionthemselves. Alternatively,y,y we can provide a speedy and efficient siteinstallation service.

DesignOur designs follow the recommendation of BS 6399; Part 1, BS 5395and BS 6180. There are at least two horizontal rails - a top rail(handrail) and an intermediate rail (knee rail) at approximately mid-height. For step (companion) ladders and staircases in close proximityto, or bounded by a wall, a single handrail only is required with aminimum clearance for the hand of 75mm** (EEUA recommendminimum 65mm). If glazed areas occur adjacent to a walkway,y,yplatform, balcony or staircase, they should be guarded by a securehandrail or balustrade.Wherever possible, handrails should be continuous and follow theexposed edge of raised platform areas and staircases. Sharp changes ofdirection in the vertical plane should be avoided in runs of handrail.The minimum height of handrails for platforms walkways and landingsis 1.1m above the walking surface; for staircases the handrail heightshould be between 0.9m and 1m above the pitch line.Handrails should terminate in a swept end, either to the wall or to theknee rail, or return to the standards.Note: Sharp corners, protrusions and stop ends should be avoided sincethese may catch clothing and cause accidents. Return bends (U bends)should not extend more than 350mm from the centre line of thestandards. At the foot of staircases, U bends should extend to thepoint of maximum extension of the stringer.

LoadingsBS 5395: Part 3 recommends the following minimum design imposedlateral loads that should be used for handrails in industrial situations:Light duty. Access limited to one person. 0.36 kN/mGeneral duty. Regular two-way pedestrian traffic. 0.36 kN/mHeavy duty. High density pedestrian traffic: escape routes.0.74 kN/mPotentially crowded areas over 3m wide. 3.00 kN/m

If there is any possibility of vehicular impact, the recommendations inappendix C of BS 6180 should be followed.For light access stairs, gangways etc., which are not more than 600mmwide, a minimum design load of 0.22 kN/m may be used (BS 6399: Part 1).

Protective TrTrT eatmentsSteel can be supplied in the following finishes:i) Self colour.ii) Red oxide metal primer.iii) Hot dipped galvanized to BSENISO 1461. Recommended for

exposed or corrosive conditions. Decorative paint finishes can beapplied by the customer on top of galvanized materials, but asuitable priming system must be used prior to painting.

iv) Nylon/Plastic coated. Not recommended for exposed conditions.v) Chrome plated, polished and powder coated finishes are

available to special order.

** BS 5395

Aluminium alloy and stainless steel do not normally require protectivetreatment. However. where additional protection or improvedappearance is thought necessary,y,y then aluminium can be anodisedand stainless steel polished.Note: Some discolouration may occur on Aluminium bends and heataffected areas when anodised.

HandrailsTubular and Solid mild steel handrails are available in a range of sizes

Tubular: 26.9 o/d x 3.2mm wall minimum, (1.87kg/m)33.7 o/d x 3.2mm wall minimum, (2.41kg/m)42.4 o/d x 3.2mm wall minimum, (3.10 kg/m)48.3 o/d x 4.0mm wall minimum, (4.39kg/m)

Solid: 25mm dia. solid bar (3.85kg/m)32mm dia. solid bar (6.31 Kg/m)

Stainless steel handrails are available with ball type standards, but allwelded construction can also be accommodated.

Aluminium tubular handrail is also available on request in a range ofsizes.

Handrail StandardsTubular and Solid ball type mild steel standards are available in avariety of types and sizes. For further details, including types of basefittings, see page 13, 14 & 15. A handrail system may be tubular orsolid, or a combination of both e.g. tubular handrails with solidstandards. However,r,r it is important to select a standard withadequate ball size to be compatible with the diameter of handrail tobe used, as illustrated below.

Note: All standards are compatible with 25mm and 32mm SolidHandrails.Details regarding the spacing between Standards at differentLoadings are given on page 13.Aluminium tubular Standards are also available to complement theAluminium tubular handrailing.

Gates and Safety ChainsWhere loading access is required for a mezzanine floor,r,r or forprotection across openings at the head of stairs and ladders. we cansupply gates of tubular construction to match the design of adjoininghandrails. Alternatively,y,y safety chains can be provided. Chains aregalvanized mild steel, smooth welded to BS4942 and supplied withhooks, split rings, shackles, eye bolts and snap fasteners as required.

Infill Panels and Mesh GuardsWhere a two line system of handrail is preferred or for existinghandrails where the need arises for additional protection, we canprovide infill panels. These panels consist of 50mm sq. welded meshconstructed from 3.25mm dia. wire with heavy gauge wire framesurrounds and supplied complete with fixing clips for securing tohandrails.

TUBULAR

SOLID

33.7mm o/d x 3.2mm wall x 60mm dia. ball42.4mm o/d x 3.2mm wall x 75mm dia. ball48.3mm o/d x 4.0mm wall x 90mm dia. ball60.3mm o/d x 4.0mm wall x 90mm dia. ball

32mm dia. Solid x 60mm dia. ball38mm dia. Solid x 70mm dia. ball

Specification of StandardShank Size x Ball Size

Max Dia. of Handrailto suit Ball Size

33.7mm o/d42.4mm o/d48.3mm o/d48.3mm o/d

33.7mm o/d42.4mm o/d

Rectangular Pattern Mild Steel Open Type Flooring Typical arrangement of Handrails for Stairs, Platforms and Walkways

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Standard Range Rectangular PatternTaTaT bles A and B take into account thelimiting stress for the grade of steelspecified The horizontal displacementof any part of the barrier should notexceed 25mm. Allowance has beenmade for the combined deflection ofhandrails and standards.

Height of StandardsSpecification of Standards 900 950 1000 1050 1100 1150 1200 1250

33.7mm o/d Shank x 60mm dia. ball 1090 1030 N/A/A/ N/A/A/ N/A/A/ N/A/A/ N/A/A/ N/A/A/42.4mm o/d Shank x 75mm dia. ball 1800 1800 1795 1710 1630 1560 1495 130048.3mm o/d Shank x 90mm dia. ball 1800 1800 1800 1800 1800 1800 1800 180060.3mm o/d Shank x 90mm dia. ball 1800 1800 1800 1800 1800 1800 1800 1800

32mm dia. Solid x 60mm dia. ball 1635 1550 1473 1405 1245 N/A/A/ N/A/A/ N/A/A/38mm dia. Solid x 70mm dia. ball 1800 1800 1800 1800 1800 1800 1800 1800

Height of StandardsSpecification of Standards 900 950 1000 1050 1100 1150 1200 1250

33.7mm o/d Shank x 60mm dia. ball THIS PATATA TERN NOT SUITATAT BLE42.4mm o/d Shank x 75mm dia. ball THIS PATATA TERN NOT SUITATAT BLE48.3mm o/d Shank x 90mm dia. ball 1800 1800 1763 1685 1545 1330 1010 N/A/A/60.3mm o/d Shank x 90mm dia. ball 1800 1800 1800 1800 1800 1800 1800 1800

32mm dia. Solid x 60mm dia. ball THIS PATATA TERN NOT SUITATAT BLE38mm dia. Solid x 70mm dia. ball 1333 1265 1200 1143 830* N/A/A/ N/A/A/ N/A/A/

Max. Spacing in mm of Mild Steel Handrail Standards where Intensity of Horizontal Loading = 0.36 kN/m

M.S.

TUBU

LAR

M.S.

SOLID

Max. Spacing in mm of Mild Steel Handrail Standards where Intensity of Horizontal Loading = 0.74 kN/m

M.S.

TUBU

LAR

M.S.

SOLID

* By using 42.4mm o/d tube handrails, spacing of standards in this particular instance could be increased to 1090mm.When fixed to concrete or other building materials, the maximum spacing of standards for 0.74kN/m loading should be nogreater than 1250mm

TATATBL

EA

TATATBL

EB

In order to select a suitable size ofhandrail standard from the above tablesone must first decide:(a) the horizontal loading requirement(b) the handrail diameter to be used

Having decided the handrail dia.and loading:

(c) select from table A or TaTaT ble Ba suitable standardNote: Height should be taken fromfixing point (1) see base detailspage 15 .

(d) check that the handrail dia. iscompatible with the size of handrailstandard selected . See page 12.

Spacing Between Standards

TaTaT bles A and B take into account the In order to select a suitable size of (c) select from table A or TaTaT b

For loadings on Handrails referenceshould be made to BS 6399; Part 1.

Information on Design and Loadings isalso given in BS 6180.

Handrail Standards Safe Load Tables for Concentrated Loads

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Steelway tubular and solid ball typestandards are made in varying heightsto suit single, double and multi-linehandrails. Balls are drilled to suithandrails or can be fitted with eyesfor chains. Grub screws are a standardfitment in balls to secure handrailsagainst movement.

Note: Handrail standards must not besupported from toe plates, unless it

Mild Steel Angle Curb

A full range of available basesare illustrated on page 15. The typeof base should be chosen withcare to ensure it will be suitablefor attaching to the structure inquestion. A larger size of baseis more suitable when fixing tomaterials which have a lowerdensity than steel e.g. concrete,

brickwork, block work.The size and spacing of fixingbolts into concrete or otherlow density materials requirescareful consideration. There isan optimum requirement forfixings, and exceeding thismay weaken rather thanstrengthen the attachment.

pp pcan be shown that the toe plates arestructural members.

When ordering please indicatewhether solid type or tubular typestandards are required, and state:

1) Height.2) Ball centres.3) Diameter of ball/shank.4) Outside diameter of handrail.5) TyTyT pe of base (state reference).

See page 15.6) Angle of rake/pitch (if side fixing

type base state handing L.H. orR.H. side of stair when ascending).

7) Material and finish. See page 12.

Should be fitted inpreference to safety chains.


Safe Load Tables for Mild Steel Diamond Pattern Flooring Bases for Tubular Standards Type ST

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U.D.L.RL RR

Bases for Solid Standards Type S

Heavy Duty Bases Type HS

These bases aresuitaable for mild steelstanndards requiredto resist a maximumhoriizontal force of0.366 kN/m at designleveel.

Suitable for 32mm and38mm dia. standardsreqquired to resist amaaximum horizontalforrce of 0.36 kN/mat design load.

Suitable for both Solid and Tubular Standardsrequired to resist a maximum horizontal forceof 0.74 kN/m at design level.High TeTeT nsile Bolts should be used.TyTyT pes with suffix 'C' are designed for fixing toconcrete at an optimum spacing of 1.25mnominal assuming concrete to be unreinforcedwith a minimum compressive strength of25 N/mm2.TyTyT pes with a suffix 'S' are designed for fixingto steelwork at spacings of up to 1.8m.Designers should ensure that the adjacentconstruction acting as support for handrailsand balustrades is of adequate strength andstability to sustain all applied loads safelywithout excessive strain, deflection ordistortion.

Note: Bases are drilled 19mm dia. holes for M16 bolts. Non standard drilling can be accommodated and bolts supplied on request.


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Open Type Flooring - Diamond Pattern

Steel stamped location markon nosing bar(span edge of panel)

Edge barAdjustable clip

Welded

1Support

Depth

2mm Thick clipplate pressingNut

Top clip3mm thick material

M8 Hex. Bolt

Correct (Right)

Span or directionof Straight Bearing Bar(length of panel) Width of panel

Incorrect (Wrong)Ends of LoadBearing Bars are not supported

GRP ProductsComplete support structures are available constructed from GRP sections with stainless steel fixings,in both fire and non fire retardant GRP materials

ThThT e benefifif tstst of GRP materialslsl arenumerous

High strength Low weight Corrosion resistance Low maintenance Low conductivity to heat

and electricity Non magnetic Non sparking

GRP Safegrip StairtreadsStairtreads from GRP grating / solidhave a square siting bar to the frontof the tread which also acts as a highstress absorber where most of theforce is applied in use.The siting bar isof a contrasting colour,r,r normallyyellow.

GRP Handrails Light, medium and heavy duty

designs Posts are square or rectangular

sections Contrasting colour posts and

rails available With or without kickplate Supplied in kit form for ease ofinstallation

GRP Ladders Stringers are square or

rectangular hollow sectionsfor greater stiffness andstrength

Serrated rungs offer good grip Contrasting colours for rungs

and stringers available Complete with GRP safety

cages where required Stays and feet in GRP or

stainless steel to suit

GRP Safegrip PlankingSolid (40SP-S) or perforated (40SP-P)from stock in 6m x 500m panels or cutto size and shape. Adjacent panelsconnect by tongue and groove joints.Supplied with a plain or gritted topwalking surface. Fixings are stainlesssteel.

GRP Moulded GratingsAvAvA ailable 25mm or 40mm thick instock panels 1.22m * 2.44m having a40mm square perforated grid pattern.With plain or gritted slip resistant topwalking surface.

Safegrip (40SP-S)Safegrip (40SP-P)

Queensgate Works, Bilston Road, Wolverhampton, West Midlands WV2 2nJ Tel: 01902 451733 Fax: 01902 452256

Email: [email protected] [email protected]

E X P E R T S I N S T E E L

Steelway is a leading engineering and fabrication company that specialises in the manufacture of steel, aluminium and GRP products.

Our dedicated workforce prides itself on its professionalism and the quality finish of the products produced. We strive to be experts in our field.

Core Grating Products09

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