PAD FOUNDATION DESIGN to EN 1992-1 : 2004 (without UK NA)

Designing a pad foundation according to EN 1992-1:2004 (Eurocode 2) without the UK National Annex (NA) involves following the general design principles outlined in the standard. However, it’s important to note that each design situation is unique, and consulting with a structural engineer or using specialized design software is highly recommended for accurate and reliable results. Here are the general steps involved in designing a pad foundation:

Determine the loads: Identify and calculate the applied loads that the pad foundation will need to support, including the dead load, live load, and any other relevant loads.

Soil investigation: Conduct a geotechnical investigation to determine the soil properties, including bearing capacity, soil type, and settlement characteristics. This information is crucial for the foundation design.

Determine the foundation size: Based on the loads and soil properties, determine the required size (plan dimensions) and depth of the pad foundation. This will depend on factors such as allowable bearing pressure, soil type, and structural requirements.

Calculate the bearing capacity: Use the geotechnical information to calculate the allowable bearing capacity of the soil. Consider factors such as soil type, depth, and any additional considerations for eccentric loading or layered soils.

Design reinforcement: Determine the reinforcement requirements for the pad foundation. This will depend on the applied loads, the size of the foundation, and the required bending and shear capacities. Reinforcement details such as bar diameter, spacing, and cover will need to be specified.

Check stability: Ensure the stability of the pad foundation by assessing factors such as sliding, overturning, and bearing capacity. Perform calculations and checks to verify that the foundation will remain stable under the applied loads.

Detailing and construction: Prepare detailed construction drawings and specifications, including reinforcement detailing, concrete cover, and any additional requirements. Consider factors such as construction joints, waterproofing, and durability requirements.