Grade beam foundations are a crucial part of building structures, playing a key role in transferring loads and preventing differential settlement. Let’s delve into what grade beams are, their foundation, construction process, advantages, and disadvantages.
A grade beam is a concrete element designed to transfer the load from a bearing wall to spaced foundations, such as pile foundation caps or caissons. This component, made from Reinforced Cement Concrete (RCC), provides horizontal ties between foundations to ensure stability and prevent uneven settling.
A grade beam foundation is a concrete foundation with a rectangular cross-section that runs around a house’s perimeter beneath exterior walls. This type of foundation, also known as a perimeter beam foundation, is named for the beam resting on the ground.
The primary goal of a grade beam foundation is to transfer a building’s load to the ground. The size of the grade beam is determined based on factors like load intensity, types of load, and soil bearing capacity. Notably, grade beam foundations require less concrete than traditional foundations, making them a cost-effective choice.
However, it’s essential to note a limitation—grade beam foundations are not suitable for basements.
The construction of grade beams involves a step-by-step process:
Excavation and Preparation:
Installation of Formwork:
Reinforcement Placement:
Concrete Pouring:
