Understanding the uplift capacity of shallow foundations is a crucial aspect of structural and geotechnical design, particularly for lightweight structures such as steel frameworks and sheds. In these cases, uplift forces induced by lateral loads can become a significant design consideration, often challenging traditional assumptions about soil-structure interaction.
Commonly used approaches, such as relying on the weight of soil above the footing or applying a 30–45° angle method, may yield quick estimates but often oversimplify the underlying mechanics. Uplift capacity is not just about soil weight; it also involves friction, cohesion, and safety factors, all of which play critical roles in ensuring structural stability and reliability.
Drawing from the principles outlined in Braja M. Das’s Shallow Foundations: Bearing Capacity and Settlement, this discussion focuses on practical methods for assessing uplift capacity in sandy soils. The aim is to clarify misconceptions and provide actionable insights that can enhance your design practices.
Below, you’ll find a detailed presentation and accompanying video that delve deeper into the topic, offering clear guidance on evaluating uplift capacity with precision and confidence.
Powerpoint File Link: https://disk.yandex.com/i/_qrmUbaz2EPmlg
