A tie rod is a key component in formwork systems, especially for concrete walls, columns, tanks, and shear walls. Its main function is to hold the two opposite formwork panels together while concrete is being poured.
Here are its main functions:
Resists concrete pressure: Fresh concrete exerts high lateral pressure on formwork. Tie rods prevent the formwork from bulging or bursting apart.
Maintains the correct wall thickness: Tie rods keep the two formwork faces at the designed spacing, ensuring the finished concrete element has the specified thickness.
Improves structural stability: They help keep the formwork aligned and prevent movement during concrete placement and vibration.
Produces accurate dimensions: By preventing deformation, tie rods help ensure the concrete structure is straight, level, and dimensionally accurate.