Steel formwork construction utilizes various types of ties to hold the formwork panels together and ensure the stability and integrity of the structure. Some commonly used ties in this construction method include:
1. Snap ties are the most frequently employed ties in steel formwork construction. They consist of a metal rod and a flat plate. The rod is inserted through holes in the formwork panels, and the plate is attached to secure the panels. Snap ties are quick and easy to install and can be easily removed after the concrete cures.
2. Tie rods are long steel rods with threading on both ends. They are used to connect the formwork panels by passing them through the panel holes and securing them with nuts and washers. Tie rods provide robust and stable connections that can withstand high pressure and loads.
3. She-bolts are similar to tie rods but have a fixed female thread at one end. Used in combination with wing nuts and washers, she-bolts hold the formwork panels together. They are particularly useful when tie rods need to be quickly and easily removed.
4. Flat ties are flat-shaped steel wires or bars. They are inserted through the formwork panel holes and secured with cones or washers. Flat ties establish a secure connection between the panels and are commonly used in large-scale construction projects.
5. Coil ties are flexible steel wires coiled at one end and threaded at the other. They are inserted through the formwork panel holes and secured with cones or washers. Coil ties are especially advantageous in curved or irregular-shaped structures.
6. Combination ties merge the characteristics of snap ties and tie rods. They consist of a metal rod with a flat plate at one end and a threaded end at the other. Combination ties are versatile and can be utilized in diverse formwork applications.
Choosing the appropriate tie type is crucial for steel formwork construction projects. Factors such as the structure's size and shape, required load-bearing capacity, and ease of installation and removal influence the tie selection.
There are several types of ties commonly used in steel formwork construction. These ties serve the purpose of holding the formwork panels together and ensuring the stability and integrity of the structure. Some of the different types of ties used in steel formwork construction include:
1. Snap ties: These are the most commonly used ties in steel formwork construction. They consist of two parts - a metal rod and a flat plate. The rod is inserted through holes in the formwork panels, and the plate is then attached to hold the panels together. Snap ties are quick and easy to install and can be easily removed after the concrete has cured.
2. Tie rods: These are long steel rods that are threaded on both ends. They are used to hold the formwork panels together by passing them through holes in the panels and securing them with nuts and washers. Tie rods provide strong and stable connections between the panels and can withstand high pressure and loads.
3. She-bolts: These are similar to tie rods but have a fixed female thread at one end. She-bolts are used in combination with wing nuts and washers to hold the formwork panels together. They are particularly useful in applications where the tie rods need to be quickly and easily removed.
4. Flat ties: These are steel wires or bars that are flat in shape. They are inserted through holes in the formwork panels and secured with cones or washers. Flat ties provide a secure connection between the panels and are commonly used in large-scale construction projects.
5. Coil ties: These are flexible steel wires that are coiled at one end and have a threaded end at the other. Coil ties are inserted through holes in the formwork panels and secured with cones or washers. They are particularly useful in curved or irregular-shaped structures.
6. Combination ties: These ties combine the features of snap ties and tie rods. They consist of a metal rod with a flat plate at one end and a threaded end at the other. Combination ties are versatile and can be used in various formwork applications.
It is important to choose the appropriate type of tie based on the specific requirements of the steel formwork construction project. The choice of tie will depend on factors such as the size and shape of the structure, the load-bearing capacity needed, and the ease of installation and removal.
There are several types of ties commonly used in steel formwork construction, including steel wire ties, snap ties, wedge ties, and coil ties. Each type of tie is designed to securely hold the formwork together and provide stability during the concrete pouring process. Steel wire ties are typically used for light-duty applications, while snap ties, wedge ties, and coil ties are more commonly used for heavy-duty formwork construction.
