Drained Strip Foundation En1997

STRIP FOUNDATION (EN1997-1:2004)   
Purpose of calculation  
Design and alalysis of two leaf block basic strip foundation on a ridgid concrete base.   
   
Calculation Reference  
TEDDS Trial Software calulation version 3.1.04 - BS EN1997-1:2004 incorporating Corrigendum dated   
February 2009 and the UK NA incorporating Corrigendum No.1.    

Calculation Validation  
Calculations checked by P.J.   

Strip foundation details - considering a one metre strip   
Length of foundation   
Width of foundation   
Foundation area   
Depth of foundation   
Depth of block work   
Depth of soil over foundation   
Level of water   
Density of water   
Density of block   
Density of concrete   
   
Cavity details   
Width of cavity   
   
Wall no.1 details   
Width of wall   
Position in y-axis   
   
Wall no.2 details   
Width of wall   
Position in y-axis   
   
Soil Properties   
Density of Soil   
Characteristic cohesion   
Charac. angle of shear resistance   
Characteristic friction angle   
   
Foundation loads   
Self weight   
Soil Weight   
   
Wall no.1 loads per linear metre   
Self weight   
Variable load in y-axis   
Permanent load in y-axis   
Variable load in z-axis   
Permanent load in z-axis   
Surcharge next to wall z-axis   
   
Wall no.2 loads per linear metre   
Self weight   
Variable load in y-axis   
Permanent load in y-axis   
Variable load in z-axis   
Permanent load in z-axis   
Surcharge next to wall z-axis  

Calculation Reference

Foundation Calculations

Soil Mechanics

Building Calculations

A strip foundation is a type of shallow foundation commonly used in construction to support linear structures like walls, columns, or rows of columns. The main purpose of a strip foundation is to distribute the load from the supported structure evenly across the ground, preventing excessive settlement and ensuring stability.

EN 1997-1:2004, also known as Eurocode 7 - Geotechnical Design - Part 1: General Rules, provides guidelines for the geotechnical aspects of the design of civil engineering works and buildings, including foundations. For designing a strip foundation, Eurocode 7 should be used in conjunction with Eurocode 2 (EN 1992) for the design of concrete structures.

When designing a strip foundation using EN 1997-1:2004, the following steps are typically followed:

1. Site investigation: Assess the ground conditions, soil properties, and groundwater levels to determine the bearing capacity and settlement characteristics of the soil.

2. Load determination: Calculate the loads imposed by the structure on the foundation, including dead loads, live loads, and any additional loads such as wind or seismic loads.

3. Bearing capacity and settlement analysis: Analyze the bearing capacity of the soil to ensure that the foundation will not fail due to shear or punching. Assess the potential settlement of the foundation to ensure that it will not cause excessive differential settlement or structural damage.

4. Foundation dimensions: Determine the width, depth, and length of the strip foundation based on the load distribution, bearing capacity, and settlement analysis.

5. Reinforcement design: Design the reinforcement for the strip foundation, considering the bending moments, shear forces, and axial loads, as per Eurocode 2 (EN 1992) guidelines.

6. Detailing and construction: Prepare detailed drawings and specifications for the strip foundation, including reinforcement details, dimensions, and construction materials.

7. Quality control and monitoring: Implement quality control measures during construction, and monitor the performance of the foundation after construction to ensure it meets the design requirements.

Remember that local building regulations and codes may also apply, so it's essential to consult with local authorities and engineers familiar with the region's specific requirements.