Design Basis Report Generator
Edit the edition/year field as needed — it is printed with each code reference.
Properties are pulled from the Enginus material library — every value cited to its code clause.
Loads with a non-zero value also feed Section 5: the load combinations are generated by the same verified engine as the Load Combination Generator.
Design Basis Report
1. Project Information
| Project | — |
| Location | — |
| Client | — |
| Engineer of record | Eng. Fayez Balhas |
| Document no. | — |
| Revision | Rev. 0 |
| Date | 12 September 2026 |
This Design Basis Report defines the codes and standards, material properties, characteristic loads, safety factors and design assumptions applicable to the structural design of the project identified above. It shall be read in conjunction with the project drawings and specifications.
2. Applicable Codes & Standards
The structural design of the project is governed by the following codes and standards, including their national annexes and amendments where applicable:
- EN 1990:2002+A1:2005 — Eurocode — Basis of structural design
- EN 1991-1-1:2002 — Eurocode 1: Actions on structures — Part 1-1: General actions — Densities, self-weight, imposed loads for buildings
- EN 1991-1-4:2005 — Eurocode 1: Actions on structures — Part 1-4: Wind actions
- EN 1992-1-1:2004 — Eurocode 2: Design of concrete structures — Part 1-1: General rules and rules for buildings
3. Materials
3.1 Concrete (EN 1992-1-1)
| Class | fck (MPa) | fck,cube (MPa) | fcm (MPa) | fctm (MPa) | Ecm (GPa) | εcu2 (‰) | fcd (MPa) |
|---|---|---|---|---|---|---|---|
| C30/37 | 30 | 37 | 38 | 2.90 | 32.8 | 3.5 | 17.0 |
3.2 Reinforcing Steel (EN 1992-1-1)
| Grade | fyk (MPa) | fyd (MPa) | Es (GPa) | Ductility class | εuk (%) |
|---|---|---|---|---|---|
| B500B | 500 | 434.8 | 200 | B | ≥ 5.0 |
4. Design Loads
The characteristic (unfactored) loads listed below form the basis of the structural design. Load values are established from the referenced code provisions and project-specific criteria.
| Category | Description | Value | Basis / source |
|---|---|---|---|
| Dead | Self-weight + finishes | 0.00 kN/m² | EN 1991-1-1 Annex A |
| Live | Imposed floor load | 0.00 kN/m² | EN 1991-1-1 Table 6.2 |
5. Safety Factors & Load Combinations
Ultimate limit state (STR) verifications follow EN 1990 §6.4.3.2, using expression 6.10. Serviceability combinations follow EN 1990 §6.5.3 (characteristic, frequent and quasi-permanent). Partial factors and ψ coefficients are the CEN recommended values of EN 1990 Tables A1.1 and A1.2(B):
| Factor | Value | Application | Reference |
|---|---|---|---|
| γG,sup | 1.35 | Permanent actions, unfavourable | EN 1990 Table A1.2(B) |
| γG,inf | 1.00 | Permanent actions, favourable (STR) | EN 1990 Table A1.2(B) |
| γQ | 1.50 | Variable actions, unfavourable | EN 1990 Table A1.2(B) |
| γC | 1.50 | Concrete (persistent & transient) | EN 1992-1-1 Table 2.1N |
| γS | 1.15 | Reinforcing steel (persistent & transient) | EN 1992-1-1 Table 2.1N |
Load combinations will be listed once design loads are defined in Section 4.
6. Design Assumptions
No project-specific assumptions recorded.
Prepared with Enginus. All values, material properties, factors and load combinations in this document are for preliminary design purposes and must be independently verified by a qualified, licensed structural engineer before use in any actual design or construction project.