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Bridge failure investigated by the Mexican company Mexpresa, and American company Modjeski and Masters Florida International University pedestrian bridge collapse: Sweetwater and University Park, Florida: United States: 15 March 2018: Concrete Pedestrian Bridge Partially constructed concrete truss bridge, a rare design.
Completed falsework: Decking and some formwork has been added. The illustrations are of modern pipe-column falsework, used to support the formwork for a post-tensioned reinforced concrete flyover connector for the eastern span replacement of the San Francisco-Oakland Bay Bridge. When the supports are complete, wood beams and plywood or reusable ...
A wooden deck was then erected atop the falsework to support the lowest forming surface. Reinforcing for the lowest surface of the box structure was then added, and the concrete was poured. During the initial pour, reinforcing and formwork for interior shear beams and any included tendon conduits were added. Later, another concrete pour was ...
This is a list of structural failures and collapses of buildings and other structures including bridges, dams, and radio masts/towers. This is a dynamic list and may never be able to satisfy particular standards for completeness.
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Fifty-one people were killed in these failures, leading in the UK to the formation of the Merrison Committee [4] and considerable investment in new research into steel box girder behaviour. Most of the bridges still under construction at this time were delayed for investigation of the basic design principle.
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end (called cantilevers).For small footbridges, the cantilevers may be simple beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete.
Shoring is designed to prevent collapse where shielding is only designed to protect workers when collapses occur. Concrete-structure and stone-building shoring, in these cases also referred to as falsework, provides temporary support until the concrete becomes hard and achieves the desired strength to support loads.