In steel frame formwork, various types of formwork ties are utilized, each possessing distinct characteristics and benefits. Some commonly employed forms include:
1. Snap Ties: These formwork ties are the most fundamental and widely used. They consist of two flat plates with a threaded rod positioned in between. Snap ties offer effortless usage and establish secure connections between formwork panels.
2. Wedge Ties: This tie variant entails a flat plate inserted into a slot on the formwork panel. A wedge is then driven into the slot to secure the tie in place. Wedge ties are characterized by their swift and simple installation process, while still providing robust connections.
3. Coil Ties: Constructed from a continuous loop of wire threaded through the formwork panels, coil ties are secured by twisting the ends together. Their versatility enables application across a wide range of formwork scenarios.
4. She-Bolts: In situations where external ties are impractical, she-bolts are employed. They consist of a threaded rod inserted into a hole drilled through the formwork panel, with a washer and nut used to ensure the tie remains secure.
5. Cone Ties: Cone ties possess a conical shape on one end, similar to snap ties. This design facilitates easy removal of the tie after the concrete has cured. Cone ties find frequent use in scenarios where prompt formwork removal is necessary.
6. Flat Ties: Flat ties are fashioned from flat steel bars inserted through the formwork panels. Their fixation is achieved by utilizing nuts and washers on both sides of the formwork. Flat ties deliver a sturdy and reliable connection.
7. Z Ties: Z ties derive their name from their Z-shaped profile. Inserted into the formwork panels and secured with nuts and washers, Z ties are commonly employed in applications requiring high load capacity and stability.
These examples represent merely a selection of the diverse range of formwork ties employed in steel frame formwork. The choice of tie depends on project-specific criteria, including the type of formwork utilized, desired load capacity, and ease of installation and removal.
There are several different types of formwork ties used in steel frame formwork, each with its own unique characteristics and advantages. Some of the most common types include:
1. Snap Ties: These are the most basic and commonly used formwork ties. They consist of two flat plates with a threaded rod in between. Snap ties are easy to use and provide solid connections between the formwork panels.
2. Wedge Ties: This type of tie consists of a flat plate that is inserted into a slot on the formwork panel. A wedge is then driven into the slot to secure the tie in place. Wedge ties are quick and easy to install and provide a strong connection.
3. Coil Ties: Coil ties are made from a continuous loop of wire that is threaded through the formwork panels. They are secured by twisting the ends together. Coil ties are versatile and can be used for a wide range of formwork applications.
4. She-Bolts: She-bolts are used in situations where it is not possible to use external ties. They consist of a threaded rod that is inserted into a hole drilled through the formwork panel. A washer and nut are used to secure the tie in place.
5. Cone Ties: Cone ties are similar to snap ties but have a conical shape on one end. This allows for easy removal of the tie after the concrete has cured. Cone ties are commonly used in situations where the formwork needs to be removed quickly.
6. Flat Ties: Flat ties are made from flat steel bars that are inserted through the formwork panels. They are secured using nuts and washers on both sides of the formwork. Flat ties provide a strong and secure connection.
7. Z Ties: Z ties are named for their Z-shaped profile. They are inserted into the formwork panels and secured using nuts and washers. Z ties are commonly used in situations where high load capacity and stability are required.
These are just a few examples of the different types of formwork ties used in steel frame formwork. The choice of tie will depend on the specific requirements of the project, including the type of formwork being used, the load capacity required, and the desired ease of installation and removal.
There are several different types of formwork ties used in steel frame formwork, including snap ties, wedge ties, coil ties, and flat ties. These ties are used to secure the formwork panels together, ensuring that they maintain their shape and structural integrity during the concrete pouring process.
