What is the purpose of tieback anchors in construction?

• A. To provide decorative finishes to structures
• B. To prevent lateral movement of temporary structures
• C. To enhance insulation of the foundation
• D. To support vertical loads in concrete columns

Answer: (B)

Tieback anchors are utilized in construction primarily to prevent lateral movement of temporary structures, such as excavation walls or shoring systems. They help stabilize structures that are subjected to lateral forces, such as soil pressure, water pressure, or vibrations from nearby construction activities. By anchoring the structure back into the ground or to a more stable element, tiebacks ensure that the temporary structures maintain their position and integrity throughout the construction process.

This is essential in scenarios where the excavation depths are significant or where soil conditions may lead to instability. Without the use of tieback anchors, there is a risk of collapse or failure of temporary structures, which can pose serious safety hazards and delays in construction.

The other options do not align with the primary function of tieback anchors. Decorative finishes do not relate to structural support, enhancing insulation does not pertain to lateral stabilization, and supporting vertical loads is typically achieved through other structural elements, such as columns and beams, rather than tiebacks, which focus on lateral support.