With steel frame formwork, various formwork ties are utilized to ensure stability and strength in the system. Each tie serves a distinct purpose in achieving this goal.
1. Snap Ties: Among the most frequently employed formwork ties, snap ties establish a robust connection between formwork panels. They can be swiftly and effortlessly installed, and easily removed once the concrete has cured.
2. Flat Ties: Similar to snap ties, flat ties possess a flat end instead of a loop. They are employed when a smooth finish on the concrete surface is desired, as they leave minimal marks after removal.
3. She-bolts: She-bolts are used to connect formwork panels together. Designed with a threaded end, they can be effortlessly screwed into the formwork panels, ensuring a secure connection.
4. Wing Nuts: In conjunction with she-bolts, wing nuts are utilized to secure the formwork panels in place. These nuts have two wings that can be turned by hand, facilitating quick and easy installation and removal.
5. Tie Rods: Tie rods anchor the formwork system to the ground or other structural elements. Typically made of steel, they have threaded ends, enabling easy connection and adjustment.
6. Cone Anchors: Cone anchors secure the formwork system to the concrete structure. They consist of a cone-shaped anchor inserted into a pre-drilled hole in the concrete. The tie rod is then threaded into the anchor, establishing a strong and secure connection.
7. Form Anchors: Form anchors provide additional support and stability to the formwork system. Made of steel, they are inserted into pre-drilled holes in the formwork panels. The anchor is then secured in place with a nut and washer, creating a strong and rigid connection.
These examples demonstrate the various formwork ties used with steel frame formwork. The choice of tie depends on factors such as desired finish, structural requirements, and the specific formwork system employed.
There are several types of formwork ties used with steel frame formwork, each serving a specific purpose in ensuring the stability and strength of the formwork system.
1. Snap Ties: These are one of the most commonly used formwork ties and they provide a strong connection between the formwork panels. They are quick and easy to install and can be easily removed after the concrete has cured.
2. Flat Ties: Flat ties are similar to snap ties but have a flat end instead of a loop. They are used when a smooth finish is desired on the concrete surface as they leave minimal marks on the concrete after removal.
3. She-bolts: She-bolts are used to connect formwork panels together. They are designed with a threaded end that can be easily screwed into the formwork panels, providing a secure connection.
4. Wing Nuts: Wing nuts are used in conjunction with she-bolts to secure the formwork panels in place. They have two wings that can be easily turned by hand, allowing for quick and easy installation and removal.
5. Tie Rods: Tie rods are used to anchor the formwork system to the ground or other structural elements. They are typically made of steel and are threaded on both ends, allowing for easy connection and adjustment.
6. Cone Anchors: Cone anchors are used to secure the formwork system to the concrete structure. They consist of a cone-shaped anchor that is inserted into a pre-drilled hole in the concrete. The tie rod is then threaded into the anchor, providing a strong and secure connection.
7. Form Anchors: Form anchors are used to provide additional support and stability to the formwork system. They are typically made of steel and are inserted into pre-drilled holes in the formwork panels. The anchor is then secured in place with a nut and washer, providing a strong and rigid connection.
These are just a few examples of the different types of formwork ties used with steel frame formwork. The choice of tie will depend on factors such as the desired finish, the structural requirements, and the specific formwork system being used.
There are various types of formwork ties used with steel frame formwork, including snap ties, wedge ties, coil ties, and flat ties.
