BS 8004:2015+A1:2020
$215.11
Code of practice for foundations
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 108 |
This British Standard gives recommendations for the design and construction of foundations for the normal range of buildings and engineering structures. It provides non‑contradictory, complementary information for use in conjunction with BS EN 1997 and its UK National Annex.
Clause 4 gives general recommendations for the design and construction of all types of foundations; Clause 5 and Clause 6 give specific recommendations for the design and construction of spread foundations and pile foundations (respectively).
Annex A gives specific recommendations for the design and construction of helical steel piles.
Annex B gives specific recommendations for the design and construction of underpinning.
Annex C gives information about specific geological formations encountered in the UK.
Annex D gives information about the UK Government’s policy regarding archaeological finds.
NOTE 1 This standard does not cover the design and construction of earthworks, for which see BS 6031.
NOTE 2 This standard does not cover the design and construction of earth retaining structures, for which see BS 8002.
NOTE 3 This standard does not cover the design and construction of maritime works, for which see BS 6349.
NOTE 4 For non‑industrial structures of not more than four storeys, see BS 8103‑1.
NOTE 5 This standard does not cover the design and construction of foundations for reciprocating machinery.
NOTE 6 This standard does not cover the design and construction of offshore foundations, for which see BS EN ISO 19901‑4.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | Foreword |
| 7 | 1 Scope 2 Normative references |
| 11 | 3 Terms, definitions and symbols |
| 12 | 4 General rules 4.1 Choice and design of foundation |
| 13 | 4.2 Basis of geotechnical design |
| 18 | 4.3 Materials |
| 19 | Figure 1 — Suggested values for characteristic weight density of soils above the groundwater table |
| 20 | Figure 2 — Suggested values for characteristic weight density of soils below the groundwater table |
| 22 | Table 1 — Values of φ’ang, φ’PSD and φ’dil to obtain values of φ’pk,k and φ’cv,k for siliceous sands and gravels with fines content not exceeding 15% |
| 24 | Table 2 — Values of φ’cv,k for fine soils from plasticity index |
| 26 | Figure 3 — Stiffness parameters for non‑linear soil |
| 27 | Table 3 — Values of parameters for use with equation (12) Table 4 — Values of parameters for use with equation (13) |
| 32 | 4.4 Durability |
| 33 | Table 5 — Use classes relevant to timber in foundations 4.5 Geotechnical analysis 4.6 Ultimate limit states |
| 35 | 4.7 Serviceability limit states 4.8 Structural design 4.9 Execution |
| 36 | 4.10 Testing |
| 37 | 4.11 Supervision, monitoring, and maintenance 4.12 Reporting |
| 39 | 5 Spread foundations 5.1 Choice and design of spread foundations Table 6 — Some key features of spread foundations |
| 41 | 5.2 Actions and design situations 5.3 Design considerations |
| 43 | 5.4 Calculation models |
| 48 | 5.5 Materials 5.6 Durability 5.7 Ultimate limit state design |
| 49 | 5.8 Serviceability limit state design 5.9 Structural design 5.10 Execution 5.11 Testing |
| 50 | 5.12 Supervision, monitoring, and maintenance 5.13 Reporting 6 Pile foundations 6.1 Choice and design of pile foundations Table 7 — Classification of piles according to ground disturbance caused by installation |
| 52 | 6.2 Actions and design situations 6.3 Design considerations |
| 54 | 6.4 Calculation models |
| 56 | Table 8 — Suggested values of Ks for piles installed in coarse silica soils |
| 57 | Table 9 — Suggested values of kδ for piles installed in coarse soils |
| 60 | Table 10 — Suggested values of k2 for piles installed in fine soil |
| 62 | Table 11 — Values of the empirical coefficients cs and cb,0.1 according to soil and pile type |
| 63 | Table 12 — Values of the empirical coefficients ns and nb,0.1 according to soil and pile type |
| 67 | Figure 4 — Calculation model for downdrag |
| 69 | Table 13 — Suggested values of the coefficients k1 and k4 for piles installed in rocks |
| 72 | 6.5 Materials |
| 74 | 6.6 Durability 6.7 Ultimate limit state design |
| 79 | 6.8 Serviceability limit state design |
| 80 | 6.9 Structural design |
| 82 | Table 14 — Design pile diameter for cast‑in‑place piles without permanent casing |
| 83 | 6.10 Execution |
| 85 | 6.11 Testing |
| 87 | 6.12 Supervision, monitoring, and maintenance 6.13 Reporting |
| 89 | Annex A (normative) Helical steel pile foundations |
| 93 | Annex B (normative) Underpinning |
| 97 | Annex C (informative) Specific Formations |
| 99 | Annex D (informative) Archaeological finds |
| 100 | Bibliography |
