This tenth manual in the GEO5 engineering series is focused on analyzing the settlement and rotation of spread footings. Utilizing the GEO5 Spread Footing program, this guide walks users through the steps necessary to perform settlement and rotation analysis, ensuring that the foundation meets all serviceability limit state requirements. Available for download, this manual is a critical resource for geotechnical engineers who need to assess the performance of foundations under load.

Learning Objective:

The goal of this manual is to teach users how to analyze the settlement and rotation of a spread footing using GEO5 software. Users will learn how to input soil parameters, configure analysis settings, and interpret the results to ensure that the foundation’s performance is within acceptable limits.

Assignment Description:

In this assignment, users are tasked with analyzing the settlement of a concentric spread footing that was previously designed. The assignment involves using the oedometric modulus for settlement analysis and considering the structural strength of the soil. Users will assess the settlement and rotation of the foundation under service load conditions, comparing the results with the permissible limits to determine if the design meets the required serviceability criteria.

Outcome:

Upon completing this assignment, users will be able to perform a comprehensive settlement and rotation analysis for spread footings, ensuring that the design meets serviceability requirements. They will gain practical experience in using GEO5 to assess foundation performance and make informed decisions based on the analysis results.

Conclusions:

The manual concludes that the analyzed spread footing meets the serviceability criteria, with a final settlement of 16.9 mm, which is within the permissible limit of 0.60 mm. The rotation analysis also confirms that the foundation’s rotation is within acceptable limits, ensuring the stability and performance of the structure.

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