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PD 6705-2:2020 Structural use of steel and aluminium - Execution of steel bridges conforming to BS EN 1090-2. Guide, 2020
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 General
- 5 Basis for the recommended selections of choice permitted by BS EN 1090-2:2018 [Go to Page]
- 5.1 Objectives
- 5.2 Reliability level
- 5.3 Types of choice in BS EN 1090-2:2018
- 5.4 Basis for selection of execution class
- 5.5 Quantified service category
- 5.6 Options
- 5.7 Additional information
- 6 Specifications and documentation (see BS EN 1090-2:2018, Clause 4) [Go to Page]
- 6.1 Execution class (see BS EN 1090-2:2018, 4.1.2)
- 6.2 Quality documentation (see BS EN 1090-2:2018, 4.2.1)
- 6.3 Quality plan (see BS EN 1090-2:2018, 4.2.2 and Annex C)
- 7 Constituent steel products (see BS EN 1090-2:2018, Clause 5) [Go to Page]
- 7.1 Identification, inspection documents and traceability (see BS EN 1090-2:2018, 5.2)
- 7.2 Structural steel products (see BS EN 1090-2:2018, 5.3)
- 7.3 Steel castings (see BS EN 1090-2:2018, 5.4)
- 7.4 Welding consumables for weathering steels (see BS EN 1090-2:2018, Table 6 and 7.5.10)
- 7.5 Bolt assemblies (see BS EN 1090‑2:2018, 5.6)
- 8 Preparation and assembly (see BS EN 1090-2: 2008+A1:2011, Clause 6) [Go to Page]
- 8.1 Identification of components (see BS EN 1090-2:2018, 6.2)
- 8.2 Marking methods (see BS EN 1090-2:2018, 6.2)
- 8.3 Quality of thermally cut surfaces (see BS EN 1090-2:2018, 6.4.3)
- 8.4 Hardness of free edge surfaces (see BS EN 1090-2:2018, 6.4.4)
- 8.5 Flame straightening (see BS EN 1090-2:2018, 6.5.3.1 and 6.5.3.2)
- 8.6 Execution of holing (see BS EN 1090-2:2018, 6.6.3)
- 8.7 Cut outs (see BS EN 1090-2:2018, 6.7)
- 8.8 Assembly – Connections for temporary assembly components (see BS EN 1090‑2:2018, 6.9)
- 8.9 Trial assembly (see BS EN 1090-2:2018, 6.10)
- 9 Welding (see BS EN 1090-2:2018, Clause 7) [Go to Page]
- 9.1 Quality management (see BS EN 1090-2:2018, 7.1, 7.2.2 and 7.3)
- 9.2 Qualification of welding procedures (see BS EN 1090-2:2018, 7.4.1)
- 9.3 Welding co-ordination (see BS EN 1090-2:2018, 7.4.3)
- 9.4 Preparation and execution of welding (see BS EN 1090-2:2018, 7.5)
- 10 Use of bolting assemblies (see BS EN 1090-2:2018, Clause 8) [Go to Page]
- 10.1 Welding of bolted components (see BS EN 1090-2:2018, 8.2.1)
- 10.2 Tightening of preloaded bolting assemblies (see BS EN 1090-2:2018, 8.5)
- Table 1 — Torque values for the part turn method: step one
- Table 2 — Rotation values for the part turn method: step two
- 11 Erection (see BS EN 1090-2:2018, Clause 9) [Go to Page]
- 11.1 Reference temperature for setting out (see BS EN 1090-2:2018, 9.4.1)
- 11.2 Use of levelling nuts on foundation bolts (see BS EN 1090-2:2018, 9.5.4)
- 11.3 Restoration of damage of site (see BS EN 1090-2:2018, 9.6.3)
- 11.4 Use of shims for fit-up and alignment (see BS EN 1090-2:2018, 9.6.5.3 and 11.2.3.5)
- 12 Surface treatment (see BS EN 1090-2:2018, Clause 10) [Go to Page]
- 12.1 Sealing of enclosed spaces (see BS EN 1090-2:2018, 10.6)
- 12.2 Repairs after cutting and welding (see BS EN 1090-2:2018, 10.9)
- 13 Geometrical tolerances (see BS EN 1090-2:2018, Clause 11) [Go to Page]
- 13.1 Special tolerances (see BS EN 1090-2:2018, 11.1 and Annex B)
- 13.2 Functional tolerance class (see BS EN 1090-2:2018, 11.3.2 and Annex B)
- 13.3 Alternative criteria (see BS EN 1090-2:2018, 11.3.3 and Annex B)
- 13.4 Geometrical tolerances applicable to bridges (see BS EN 1090-2:2018, Annex B)
- 14 Inspection, testing and correction (see BS EN 1090-2:2018, 7.6 and Clause 12) [Go to Page]
- 14.1 Constituent products/components (see BS EN 1090-2:2018, 5.4, 12.2.1 and 12.2.2)
- Table 3 — Testing and acceptance levels for steel castings
- 14.2 Geometrical dimensions (see BS EN 1090-2:2018, 12.3)
- 14.3 Welding (see BS EN 1090-2:2018, 7.6 and 12.4)
- 14.4 Mechanical fastening (see BS EN 1090-2:2018, 12.5)
- 14.5 Erection
- Table 4 — Minimum extent of supplementary NDT of shop welds in steel grades up to and including S355 and QSC F56
- Table 5 — Adjustments in proportions of supplementary NDT for conditions other than those covered by Table 4 and Table 6
- Table 6 — Minimum extent of supplementary NDT of shop welds in steel grades up to and including S355 and QSCs F71 to F140
- Table 7 — Weld acceptance criteria for visual inspection
- Table 8 — Weld acceptance criteria for visual inspection for QSCs F71 to F140 where limits differ from those for F56 in Table 7
- Table 9 — Weld acceptance criteria for magnetic particle and penetrant testing
- Table 10 — Weld acceptance criteria for ultrasonic testing with limited optional radiographic testing
- Table 11 — Production tests on run off coupon plates
- Annex A (informative) Background to the development of European and International execution standards and their relationship to previous British execution standards
- Annex B (informative) Method of determining QSC and guidance for use in drafting specifications [Go to Page]
- Table B.1 — Definition of QSC levels
- Table B.2 — General guide to where highest QSCs might be found in common types of bridge
- Figure B.1 — Method of designation of QSCs for specific zones on drawings
- Annex C (informative) Explanatory notes on selected recommendations [Go to Page]
- Figure C.1 — Definition of plain edge and stress raising zones for machine plasma cut edge surfaces
- Figure C.2 — Examples of effect of lack-of-fit on clamping force and forces in components in pre-loaded joints
- Annex D (informative) Full references of Parts of normative standards not provided in BS EN 1090‑2:2018, Clause 2
- Bibliography [Go to Page]
