This ninth manual in the GEO5 engineering series is dedicated to the design of spread footings. Utilizing the GEO5 Spread Footing program, this guide provides a step-by-step approach to designing the dimensions of a concentric spread footing according to the EN 1997-1 (EC 7-1, DA1) standard. Now available for download, this manual is an essential resource for geotechnical engineers focused on foundation design.

Learning Objective:

The goal of this manual is to equip users with the knowledge and skills to design the dimensions of a spread footing using GEO5 software. Users will learn how to input soil and load data, configure settings, and automatically generate the optimal dimensions for a spread footing, ensuring the foundation meets all safety and performance criteria.

Assignment Description:

In this assignment, users are tasked with designing a concentric spread footing subjected to forces from columns, with the footing bottom located at a depth of 2.5 meters. The assignment includes inputting the soil parameters, selecting appropriate design settings, and using GEO5 to determine the minimal required dimensions of the foundation. The manual provides detailed instructions on how to verify the bearing capacity and design the reinforcement for the spread footing.

Outcome:

By completing this assignment, users will be able to design a spread footing that meets the necessary safety standards, with optimized dimensions to support the structural loads. They will also gain practical experience in using GEO5 to calculate bearing capacity and design foundation reinforcement.

Conclusions:

The manual concludes that the designed spread footing, with dimensions of 2.0 x 2.0 meters, is satisfactory and meets all requirements for vertical bearing capacity. The reinforcement design, including 18 bars with a diameter of 14 mm, is verified as adequate for the expected loads, ensuring the foundation’s stability and durability.

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