In this article, we will explore the purpose and function of deck hangers and discuss the types of loads they are designed to bear.
Understanding Deck Hangers
Deck hangers are typically made of steel, galvanized steel, or stainless steel, ensuring durability and resistance to weathering and corrosion. They come in various shapes and sizes to accommodate different joist sizes and meet specific load requirements. The primary purpose of deck hangers is to provide stability and support to the deck joists, which are horizontal beams that form the framework of the deck.
Shear Loads
Shear loads refer to the forces that act parallel to the surface of the material. In the context of deck hangers, shear loads are primarily horizontal forces that result from the weight of the deck joists, as well as any additional loads placed on the deck, such as furniture, people, or snow accumulation. Shear strength is vital in preventing the deck joists from sliding or moving horizontally, thus maintaining the structural integrity of the deck.
Deck hangers are specifically designed to bear shear loads. The two main components of a deck hanger, the bent tabs and the flanges, work together to resist shear forces. The bent tabs are strategically positioned to secure the joists and prevent them from slipping out of the hanger. Meanwhile, the flanges provide additional support by attaching the hanger to the header or beam, effectively transferring the shear loads downward to the foundation.
Tension Loads
Tension loads, on the other hand, refer to the forces that act perpendicular to the surface of the material, creating a stretching or pulling effect. While shear loads are the primary concern when it comes to deck hangers, tension loads can also come into play, especially in scenarios where there is a potential for uplift or the pulling force on the deck.
Although deck hangers primarily handle shear loads, they still have some capacity to bear tension loads. However, the ability to resist tension forces is not as significant as their ability to handle shear forces. If the deck design requires additional tension load support, other elements like brackets, straps, or hurricane ties may be necessary to strengthen the connection between the deck hanger and the header or beam.
Deck hangers are primarily intended to bear shear loads, which are horizontal forces acting parallel to the surface of the material. These loads result from the weight of the deck joists and any additional loads placed on the deck. Deck hangers are specifically designed to resist shear forces by securely holding the joists in place and transferring the loads downward. Although deck hangers have some capacity to bear tension loads, their ability to handle tension forces is not as significant. If additional tension load support is required, other reinforcement methods may be necessary.