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Falsework includes temporary support structures for formwork used to mold concrete [1] in the construction of buildings, bridges, and elevated roadways. The British Standards of practice for falsework, BS 5975:2008, defines falsework as "Any temporary structure used to support a permanent structure while it is not self-supporting."
In August 1972 the falsework that had supported the westbound carriageway deck pour was moved over to the eastbound carriageway. [1]: 113 The two structures were separated by a gap of just 2 feet 10 inches (0.86 m). [1]: 111 The falsework was dragged across on a temporary track. It was inspected and some defects were rectified before it was put ...
Right: Northern columns, falsework, and formwork (westbound to tunnel upper deck). Late 2011 Progress: A portion of the SAS span is seen the bottom of the image. Late Summer, 2012: The westbound link falsework and formswork were disassembled and are now used to construct the eastbound link (center of image).
The Dee bridge after its collapse. The failure was due to faulty design. Ness Bridge Inverness: United Kingdom 1849 Stone Bridge over River Ness: Flooding overwhelmed the 164-year-old bridge Unknown Either completely destroyed or damaged beyond repair [5]
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.
Formwork is molds into which concrete or similar materials are either precast or cast-in-place. In the context of concrete construction, the falsework supports the shuttering molds. In specialty applications formwork may be permanently incorporated into the final structure, adding insulation or helping reinforce the finished structure.
Traditional formwork is fabricated using wood, but it can employ steel, glass fibre, reinforced plastics and other materials. [3] Formwork for beams takes the form of a box that is supported and propped in the correct position and level. The removal time for the formwork will vary with air temperature, humidity and consequent curing rate.
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 ...