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  2. Construction site safety - Wikipedia

    en.wikipedia.org/wiki/Construction_site_safety

    Construction site safety is an aspect of construction-related activities concerned with protecting construction site workers and others from death, injury, disease or other health-related risks. Construction is an often hazardous, predominantly land-based activity where site workers may be exposed to various risks, some of which remain ...

  3. Roof edge protection - Wikipedia

    en.wikipedia.org/wiki/Roof_edge_protection

    In 1877, the state of Massachusetts began implementing safety and health legislation. [4] Even though the first safety laws primarily concentrated on the working conditions and safety practices within factories and other workplaces, it paved the way for efforts to be geared towards roof edge protection as construction skyrocketed in U.S. cities.

  4. Roofer - Wikipedia

    en.wikipedia.org/wiki/Roofer

    A roofer, roof mechanic, or roofing contractor is a tradesman who specializes in roof construction. Roofers replace, repair, and install the roofs of buildings , using a variety of materials, including shingles , single-ply , bitumen , and metal .

  5. Construction worker - Wikipedia

    en.wikipedia.org/wiki/Construction_worker

    Thus, construction safety is intended to ensure a safe environment for workers, who are required to be educated on safety at each site. [12] Construction workers must remain vigilant by keeping work areas clear, learning safe lifting techniques, being aware of seasonal hazards, and regularly inspecting all equipment, among other preventive ...

  6. New York City crane collapse – live: Six injured after crane ...

    www.aol.com/york-city-crane-collapse-live...

    Not the first crane accident for city, or equipment owner. 08:45, AP. The crane is owned by the New York Crane & Equipment Corp., one of the city’s most widely used crane providers, officials said.

  7. Reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete

    A short video of the last beam being placed on a raised road, part of a new road near Cardiff Bay, Wales. A beam bends under bending moment, resulting in a small curvature. At the outer face (tensile face) of the curvature the concrete experiences tensile stress, while at the inner face (compressive face) it experiences compressive stress.