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2. Prestressed concrete - Wikipedia

   en.wikipedia.org/wiki/Prestressed_concrete

   Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" ( compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. [ 1][ 2]: 3–5 [ 3] This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to ...

3. Precast concrete lifting anchor system - Wikipedia

   en.wikipedia.org/wiki/Precast_concrete_lifting...

   The anchor selection, together with additional reinforcement, and rigging arrangements is influenced by: - The dead weight of the element - The number of anchors in the element and the configuration of the anchor - Capacity of the anchor at the specific concrete compressive strengths at time of lift - The dynamic loads applied during lifting ...

4. Earth anchor - Wikipedia

   en.wikipedia.org/wiki/Earth_anchor

   Single helix earth anchors Guyed mast anchor. An earth anchor is a device designed to support structures, most commonly used in geotechnical and construction applications. Also known as a ground anchor, percussion driven earth anchor or mechanical anchor, it may be impact driven into the ground or run in spirally, depending on its design and intended force-resistance characteristics.

5. Anchor bolt - Wikipedia

   en.wikipedia.org/wiki/Anchor_bolt

   Column-to-foundation connection [ 1] Anchor bolts are used to connect structural and non-structural elements to concrete. [ 2] The connection can be made by a variety of different components: anchor bolts (also named fasteners), steel plates, or stiffeners. Anchor bolts transfer different types of load: tension forces and shear forces.

6. Screw piles - Wikipedia

   en.wikipedia.org/wiki/Screw_piles

   Screw piles, sometimes referred to as screw-piles, screw piers, screw anchors, screw foundations, ground screws, helical piles, helical piers, or helical anchors are a steel screw-in piling and ground anchoring system used for building deep foundations. Screw piles are typically manufactured from high-strength steel [ 1] using varying sizes of ...

7. Curtain wall (architecture) - Wikipedia

   en.wikipedia.org/wiki/Curtain_wall_(architecture)

   Curtain wall (architecture) A building project in Wuhan, China, demonstrating the relationship between the inner load-bearing structure and an exterior glass curtain wall. Curtain walls are also used on residential structures. A curtain wall is an exterior covering of a building in which the outer walls are non-structural, instead serving to ...