Steel formwork utilizes various types of form ties, each serving specific purposes and meeting distinct requirements.
1. Coil Ties: Flexibility and effortless installation and removal are provided by coil ties, which feature a coil rod with two to four coils. These ties are commonly utilized in lighter applications where lower pressure is anticipated.
2. Flat Ties: Constructed from steel, flat ties possess wide, flat plates on both ends. Their purpose is to connect opposing wall forms, ensuring stability and preventing bulging or spreading caused by concrete pressure.
3. She-Bolt Ties: She-bolt ties consist of a she-bolt attached to one end of a threaded rod. These ties secure wall forms together, and the threaded rod allows for easy formwork adjustment.
4. Snap Ties: Snap ties are a popular choice for swift and efficient formwork installation. They consist of a metal rod with a button-like head on one end and a wedge on the other. By inserting the button head into the formwork and driving the wedge into the button head using a hammer, a robust connection is created.
5. Cone Ties: Similar to snap ties, cone ties possess a cone-shaped head instead of a button head. The cone head is inserted into the formwork, and a metal wedge is driven into the cone, securing the formwork.
6. Waler Ties: Waler ties connect horizontal waler beams with vertical formwork members, enhancing the strength and stability of the formwork system.
7. Loop Ties: Made of steel wire, loop ties feature loops on both ends. They are employed to fasten wall forms together and can be effortlessly removed once the concrete has cured.
8. Pin and Wedge Ties: Pin and wedge ties comprise a pin and a wedge. The pin is inserted into the formwork, and the wedge is driven into the pin, creating a tight and secure connection.
These examples represent only a fraction of the form ties available for steel formwork. The selection of a tie depends on factors such as construction type, desired strength, ease of installation, and specific project requirements.
There are several different types of form ties used in steel formwork, each designed to serve a specific purpose and meet specific requirements.
1. Coil Ties: These ties consist of a coil rod with two to four coils, which provide flexibility and allow for easy installation and removal. Coil ties are commonly used in lighter applications where relatively low pressure is expected.
2. Flat Ties: Flat ties are typically made of steel and have flat, wide plates on both ends. They are used to connect opposite wall forms, providing stability and preventing the forms from bulging or spreading due to the pressure of the concrete.
3. She-Bolt Ties: She-bolt ties consist of a threaded rod with a she-bolt attached to one end. These ties are used to secure wall forms together, and the threaded rod allows for easy adjustment of the formwork.
4. Snap Ties: Snap ties are a popular choice for fast and efficient formwork installation. They consist of a metal rod with a button-like head on one end and a wedge on the other. The button head is inserted into the formwork, and the wedge is then driven into the button head using a hammer, creating a strong connection.
5. Cone Ties: Cone ties are similar to snap ties, but they have a cone-shaped head instead of a button head. The cone head is inserted into the formwork, and a metal wedge is driven into the cone, securing the formwork.
6. Waler Ties: Waler ties are used to connect horizontal waler beams with vertical formwork members. They provide additional strength and stability to the formwork system.
7. Loop Ties: Loop ties are made of steel wire and have loops on both ends. They are used to secure wall forms together and can be easily removed once the concrete has cured.
8. Pin and Wedge Ties: Pin and wedge ties consist of a pin and a wedge. The pin is inserted into the formwork, and the wedge is driven into the pin, creating a tight and secure connection.
These are just a few examples of the different types of form ties used in steel formwork. The choice of tie will depend on factors such as the type of construction, desired strength, ease of installation, and specific project requirements.
There are several types of form ties used in steel formwork, including wedge bolts, loop ties, taper ties, and she-bolts.
