In construction, it is impossible to adopt one approach in preparing foundations since one can be suitable for a construction site while another might not. In such situations, ground beams come in handy; they are not only sturdy and robust but an ideal solution.
What is a Ground Beam, and Why are They Used?
Generally made from concrete, a ground beam is a structural support system for a building. Traditionally, ground beams were made on-site, but with the passage of time, they are precast and craned to the construction site. In this way, it not even provides a quick turnaround time but it’s also cost-effective. This could be a great advantage as sometimes poor soil and site conditions drastically cause foundation problems, costing more money and delaying the project. As mentioned earlier, that beams are made from concrete, but concrete does not have enough strength; therefore, it is reinforced to add strength. Since the steel reinforcement makes the structure lighter, ground beams are ideal for larger structures. The ground beams are installed and used where the soil has a lower load-bearing capacity than the design. After installation, whether the soil beneath the structure expands or contracts, the ground beams resist these changes due to their higher strength and bearing capacity.
The Construction of Ground Beams
- Ground beams are made up of reinforced concrete.
- It is placed either on the soil, pad foundation or concrete.
- According to the construction plan and after the site excavation, the formworks are placed, enclosing the ground beam area.
- After this, the ground beam formwork is checked for water tightness, size and straight lines.
- Then ready-mix concrete is poured into the formwork, covering all points.
- The concrete must be poured appropriately and left for at least 24 hours before removing the formwork.
Where are Ground Beams Put?
Ground Beams are either placed directly on the ground or at the bottom of the masonry wall. Or in some cases, they are attached to piles via in situ concrete stitches.
Ground Beam Formwork
Beam Formwork is a vital component in ground beams’ construction. It comprises three-sided boxes to provide enough structural support while ensuring the ground beam is precisely levelled. This formwork is strong enough to withstand the pressure. Moreover, to keep the formwork in place, the surroundings are filled with soil. Sometimes they are installed permanently or temporarily, and temporary farmwork demands more hands as it must be removed after the concrete is dried up and set.
Ground Beams Size and Length
- Ground beams are available in a range of sizes; however, their length highly depends on the project, structure and size of the location.
- The most popular types of beams are made of reinforced concrete, aluminium, wood and steel.
- All these materials are highly durable and can easily withstand tension, shear and heat.
Facts Regarding Ground Beams
Some of the facts and advantages of ground beams include the following:
- Ground beams are made at the base level.
- Ground beams beads on the ground help to support joists or walls,
- These are installed where the soil and ground conditions are poor.
What Features are Offered by Precast Ground Beams?
As much detailed attention is put into making this product, construction contractors can benefit greatly. This attention and detail insert important features that prove beneficial in constructing a building.
Strength
Due to their consistency and durability, ground beams are extremely strong. They are quickly shipped and have a more significant turnaround time without delays.
Density
Density makes ground beams highly stable as it adds weight to the finished product. As a result, they not only help in securing the building but also in the construction process.
Smooth Finish
The smooth finish of precast concrete beams adds to and enhances the project’s aesthetic. If these beams have rough edges, the building will also appear rough. Fortunately, the preplanned consistency and efficient methods used in manufacturing these products effectively prevent this.
Shock Tolerance
The shock-resistant precast concrete ground beams are extremely durable. This is due to their stability, strength, and density. No natural disaster, extreme temperature, or severe weather can impair their performance.
Efficient
Project managers can order precast concrete beams based on their required design because they are easier to instal. They can easily instal them after shipping because they have many lifting points. This reduces both time and labour effort.
Safety
The design of precast concrete ground beams is secure. They resist all harsh conditions and thus protect the building from all disasters. This is significant because it ensures the building’s usability and the safety of all residents.
