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2. Riser clamp - Wikipedia

   en.wikipedia.org/wiki/Riser_clamp

   Riser clamp for a standpipe through-penetration firestop inside a fire hose cabinet under construction. A riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around the pipe, and integral fasteners are then tightened to clamp them ...

3. Hold down (structural engineering) - Wikipedia

   en.wikipedia.org/wiki/Hold_down_(structural...

   A hold-down may also refer to clamping device used to anchor a pipe to a structural steel element or concrete floor or allow movement of the pipe in an axial direction. [1] At the bottom, the hold down is connected to the concrete foundation or structural slab by an embedded or epoxied anchor bolt. At the top, the hold down is connected to a ...

4. List of construction methods - Wikipedia

   en.wikipedia.org/wiki/List_of_Construction_methods

   construction site workers loading water, sand, ballast and cement into a concrete mixer. Concrete is typically used in commercial buildings and civil engineering projects, for its strength and durability. Concrete is a mix of cement and water plus an aggregate such as sand or stone. Its compression strength means it can support heavy weights. [5]

5. Lewis (lifting appliance) - Wikipedia

   en.wikipedia.org/wiki/Lewis_(lifting_appliance)

   A three-legged lewis, also known as a dovetailed lewis, St Peter's keys, or a Wilson bolt, fits into a dovetailed seating in the top of a building stone. It is made from three pieces of rectangular-section 13 mm (0.51 in)-thick steel legs held together with a shackle, allowing connection to a lifting hook.

6. Index of construction articles - Wikipedia

   en.wikipedia.org/wiki/Index_of_construction_articles

   Abated - Abrasive blasting - AC power plugs and sockets - Access mat - Accrington brick - Accropode - Acid brick - Acoustic plaster - Active daylighting - Adaptive reuse - Aerial crane - Aerosol paint - Aggregate base - Agile construction - Akmon - Alternative natural materials - Anchorage in reinforced concrete - Angle grinder - Arc welding - Artificial stone - Asbestos cement - Asbestos ...

7. Concrete slab - Wikipedia

   en.wikipedia.org/wiki/Concrete_slab

   Suspended slab under construction, with the formwork still in place Suspended slab formwork and rebar in place, ready for concrete pour. A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel-reinforced slabs, typically between 100 and 500 mm thick, are most ...

8. 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 ...

9. Rebar spacer - Wikipedia

   en.wikipedia.org/wiki/Rebar_spacer

   The engineering study of every reinforced concrete construction, whether it is a building, a bridge, a bearing wall, or another structure, dictates the positioning of steel rebars at specific positions in the volume of concrete (predicted concrete cover of steel reinforcement bars). This cover varies between 10 mm and 100 mm.