ladder spec

Client Name : BASF India Limited Project Name : Project GIR Project Number :G3IR

Document No. : G3IR100015SP9008-R1 Date 07 Nov 2012

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Specification for ladders for industrial structures

G3IR100015SP9008-R1.doc Civil Engineering

Project Document No: G3IR100015SP9008

Unit: General Discipline: Civil Structural Architectural Document Type: Specification Document Title: Specification for ladders for industrial structures

1 07 Nov 2012 ISSUED FOR CONSTRUCTION NB SM VP

Fluor BASF Revision Date Purpose Prepared By Checked By Approved By

By NIshant Bhatia on Nov 07, 2012 By Sourabh on Nov 07, 2012

ISSUED FOR CONSTRUCTION

07 Nov 2012



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Record of Revisions

This specification has been revised as indicated below and described in the revision record on the following page. Please destroy all previous revisions. Revision

No. Date Description

1 07 Nov 2012 Issued for Construction.



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Table of Contents

1.0 GENERAL.....................................................................................................................................................4 Purpose...........................................................................................................................................................4

2.0 ATTACHMENT - 1 ......................................................................................................................................5



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1.0 GENERAL

Purpose

This Specification provides the Contractor with requirements for designing and construction of Ladder works within Project GIR Dahej, India facilitiy.

All required details and dimensions for ladder and its members are explained with help of figures and diagrams in ATTACHMENT -1 of this document.



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2.0 ATTACHMENT - 1

CCE

Competence Center Engineering - Ludwigshafen

Standard Civil, Infrastructure & Master Planning - Basics Ladders for industrial structures

LU-S-CL 012 Page 1 of 15 Issue Feb 2002

This Standard supersedes

Works Standard 39-004 Edition

Published: 7 Intranet 7 Extranet For internal use only Technical Documentation and Standardization lu-s-cl_012_en.doc / 22.07.2004

2

004

BASF

Akt

ieng

esel

lsch

aft

Contents Page

1 Scope 1

2 General 1

3 Dimensions, Terms 2

4 Design 3

5 Components 14

Standards and other documents referred to 14

Further standards and documents 15

Amendments 15

Dimensions in mm

1 Scope This Works Standard shall be applied to the design and fabrication of ladders.

For ladders on apparatus and vessels refer to WN 7-333 (LU-S-MC 258).

2 General Ladders designed for rising heights > 2.5 m to 5 m shall have a cage hoop, where practical. (refer to Fig. 1) Ladders designed for rising heights > 5 m must have a cage hoop. The rising height of a ladder with cage hoop must not exceed 10 m. For ladder heights > 10 m which require several ladders to be provided, intermediate landings shall be installed. (refer to Fig. 2) The cage hoop shall start at a height of 2 200 (in the area of ramps at 3 000) above floor. The ladder shall be attached by means of bolts at the locating point and the points of sliding rest. (refer to Figs. 9 through 11) Ladders for which the potential spacing for attachment is 3 500 shall have reinforced stiles.

a) Spacing 4 500 Pipe 60.3 x 3.6

b) Spacing > 4 500 to 10 000 Channel 100

For a) and b) in the exit area, however, reduction to 48.3 x 3.6.

Welds: Execution to DIN 18800-1

Corrosion protection: by hot-dip galvanizing to DIN EN ISO 1461

Fabrication tolerances: General tolerances for welded structures to DIN EN ISO 13920 Tolerance class A

LU-S-CL 012 EN Feb 2002 Page 2

3 Dimensions, Terms

FP = Locating point LP = Point of sliding rest

Figure 1: Ladder with side exit

Figure 2: Ladders > 5 000 to 10 000

risin

g he

ight

Exit

Pipe

4

8.3

x 3.

6


4 Design

Figure 3: Ladder end for side step

Figure 4: Cage hoop Figure 5: Cage hoop for side Stepp

Flat 30 x 12 Flat 30 x 12

Exit


Figure 6: Stile for exit to the front

Section X

Figure 7: Exit to steel platform Figure 8: Exit to reinforced-concrete platform

Tread


Ladder attachment configurations

Connection strap welded to structural component

Connecting angle bolted to structural component

Figure 9: Connectors for attachment of ladders

Figure 10: Locating point for ladder attachment

Figure 11: Vertical slotted ladder connection 2) Length of clip or angle depending on local conditions


View A

Standard safety gate = 700 wide (For landing depth < 1085 smaller safety gates are required.)

1) Single post with special end link

Figure 12: Side step with landing

(Basic dimension)


1) Single post with end link (refer to Fig. 12)

Figure 13: Ladder with intermediate landing and protective railing


Figure 14: Ladder with floor plate

Floor plate

Floor-plate detail

Mounting clips

Grating floor plate SP Design (Stamped and welded grating)


1) Single post with end link (refer to Fig. 12) 2) Design of floor plate (refer to Fig. 14)

Figure 15: Ladder with intermediate landing and gate

(Basic dimension)

Floor plate 1)


1) Single post with end link (refer to Fig. 12)

Figure 16: Ladder with intermediate landing, gate and protective railing

(Basic dimension)


1) Single post with end link (refer to Fig. 12) 2) Safety gate 600 wide

Figure 17: Ladder opening with pass-around, gate and protective railing

(Basic dimension)


Figure 18: View Z of Fig. 17 (ladder opening with pass-around)

Figure 19: Section B-B of Fig. 17 (ladder opening with pass-around)


Figure 20: Ladder with landing and railing or protective railing

< 16

00 w

ith p

rote

ctiv

e ra

iling

>

1600

with

raili

ng


5 Components

Table 1

Item No. Description Material

1 Stile Pipe 48.3 x 3.6 DIN 2448 or DIN 2458 St 37.0 DIN 1629 or DIN 1626

2 Ladder rung 1) Round 25 DIN 1013-1 S235JRG2 DIN EN 10025 3 End cap Cap 48.3 x 3.6 DIN 2617 S235JRG2 DIN EN 10025 4

Ladder

Cage hoop Flat 30 x 12 DIN 1017-1 S235JRG2 DIN EN 10025 5.1 Clip Flat 120 x 10 DIN 1017-1 S235JRG2 DIN EN 10025

5.2 Angle Flat 120 x 10 DIN 1017-1 or Angle DIN EN 10056-1

S235JRG2 DIN EN 10025 S235JRG2 DIN EN 10025

6 Ladder clip Flat 120 x 10 DIN 1017-1 S235JRG2 DIN EN 10025 Hex bolt M 16 x 45 Mu DIN 7990 4.6 DIN EN ISO 898-1

7 Washer A 18 DIN 7989-2 St Hex bolt M 16 x 45 DIN 7990 4.6 DIN EN ISO 898-1

8

Ladder connection

Cap nut M 16 DIN 1587 5 DIN EN ISO 898-1 9 Tread Grating SP 30 DIN 24537 S235JR DIN EN 10025 10 Toeboard Flat 130 x 10 DIN 1017-1 S235JRG2 DIN EN 10025 11 Support plate Plate DIN EN 10029 S235JRG2 DIN EN 10025 12

Floor plate

Support angle Angle 50 x 5 DIN EN 10056-1 S235JRG2 DIN EN 10025 1) Where special service conditions prevail, such as presence of oil or grease, additional precautions shall be taken in conformity with ASR to ensure slide-down protection, e.g. profiled tread or a suitable encasing.

Standards and other documents referred to ASR 20 German Workplace Regulations; Steps and ladders

DIN 1013-1 Steel bars; Hot rolled round steel for general purposes; Dimensions, permissible variations for dimension and form

DIN 1017-1 Steel bars; Hot rolled flat steel for general purposes; Dimensions, weights, permissible variations

DIN 1587 Hexagon domed cap nuts

DIN 1626 Welded circular pipes made of unalloyed steels for special requirements; Technical delivery conditions

DIN 1629 Seamless circular pipes made of unalloyed steels for special requirements; Technical delivery conditions

DIN 2448 Seamless steel pipes and tubes; Dimensions and conventional masses per unit length

DIN 2458 Welded steel pipes and tubes; Dimensions and conventional masses per unit length

DIN 2617 Steel butt-welding pipe fittings; Caps, dimensions

DIN 7989-2 Washers for use on structural steelwork; Part 2: Product grade A

DIN 7990 Steel heagon head bolts for structural steel bolting for supply with hexagon nuts

DIN 18800-1 Structural steelwork; Design and construction

DIN 24537 Gratings; Dimensions and loadbearing capacity

DIN EN 10025 Hot rolled products of non-alloy structural steels; Technical delivery conditions

DIN EN 10029 Hot rolled steel sheet and plate 3 mm thick or above; Tolerances on dimensions, shape and mass

DIN EN 10056-1 Structural steel equal and unequal leg angles; Part 1: Dimensions


DIN EN 20898-2 Mechanical properties of fasteners; Part 2: Nuts with coarse pitch thread and specified proof load values

DIN EN ISO 898-1 Mechanical properties of fasteners made of carbon steel and alloy steel; Part 1: Bolts

DIN EN ISO 1461 Hot dip galvanized coatings on fabricated iron and steel articles; Specifications and test methods

DIN EN ISO 13920 Welding; General tolerances for welded constructions; Lengths and angles; Shape and position (ISO 13920: 1996)

WN 7-333 Vertical ladders on equipment and vessels

LU-S-CL 013 Safety doors for industrial structures (WN 39-005)

Further standards and documents DIN 18799-1 Fixed ladders; Part 1: Ladders with two stiles Safety requirements and verification

DIN 24532 Fixed vertical ladders of steel

LU-S-CL 011 Railing fabricated from steel for industrial structures (WN 39-003)

BGV D36 (VGB 74) German Accident Prevention Code "Ladders and steps"

Amendments The following amendments have been made to the July 1997 edition:

a) Editorially revised; b) In Fig. 6, Section X, altered dimensions on bent stile c) Included footnote in Table 1 Ladder rung

Ladder & Self closing gate details.pdfbersichtPrinted Book1 Scope2 General3 Dimensions, Terms4 Design5 ComponentsStandards and other documents referred toFurther standards and documentsAmendments

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