Due to this responsibility and liability, rails are placed to protect people using the premises. Any abrupt change in elevation where the higher portion is accessible makes a fall possible. Many public spaces are fitted with guard rails as a means of protection against accidental falls. A cast iron grille of decorative railings interspersed by weighty columns in St Petersburg A handrail leading along a rocky creek crossing A crowd barrier ( guard rail - North America) collapses at a college football game, spilling fans onto the sidelines. Sign in Niagara Falls, Ontario, warning people not to climb over guard rail overlooking the Niagara River. ( November 2017) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this section by adding citations to reliable sources. Guardrails also apply in a technology context. High security railings (particularly if in flat metal then a type of palisade) may instead feature jagged points and most metals are well-suited to anti-climb paint.Ī handrail is less restrictive on its own than a guard rail and provides support. Park and garden railings commonly in metalworking feature swirls, leaves, plate metal areas and/or motifs particularly on and beside gates. Common shapes are flat, rounded edge, and tubular in horizontal railings, whereas tetraform spear-headed or ball- finialled are most common in vertical railings around homes. Guard rail, guardrails, or protective guarding, in general, are a boundary feature and may be a means to prevent or deter access to dangerous or off-limits areas while allowing light and visibility in a greater way than a fence. Staircase railings in the Degré du roi, part of the Petit appartement du roi, in the Palace of Versailles, Versailles, France Galvanized metal post to flex beam guardrail, height 1.11m.For other uses, see Guard rail (disambiguation). Terminal tail of duck (Baranda flexible beam), length 1.80m. Steel beam elements for construction of bridges in the road network, flexible beam Railings double wave Bridge Guard Railing Project Illustrationīridges project in country road, of double wave beam Railings, hot-rolled structural steel 36 for railing with posts kind W6x15section of 1.11m.īeam type guardrail, 3.81meter double-wave, with minimal thickness gauge steel 2.67mm, standadrd requirements of AASHTOM180, with hot-dip galvanizing for all connections with bolts, nuts and washers.Īll posts shall be structural steel designation A 36, equivalent to AASHTOM 270 M designations Grade36, ASTMA 709 Grade 36 andM 183,with a minimum breaking strength of 4060kg/cm² and a mini mum yield strength of 2520kg/cm², Section I W6x15type(with wing 6 ') of L 1.11m. Tube barriers: Bridge Guardrail Barriers, blue painted, square tubular fencing Pipe Railings: Galvanized Steel Pipe Fenceīridge railing barrier powder coated protected Main types of bridge safety railings include Pipe railings, tube railings and Beam railings. Impact Attenuator – an impact absorbing device which reduces the forces transmitted after a vehicle collision ĩ Folding Guardrail – a collapsible guardrail designed to open up when hit, then reset itself. Crash Cushion – a flexible system designed to absorb impact Ĩ. Steel Railing – steel railing designed to deter vehicles from running off the road ħ. Post & Block System – posts and blocks used to mount guardrails Ħ. Thrie Beam Guardrail – three corrugations in a w-beam pattern for extra strength ĥ.

Beam Barrier – a pre-fabricated beam that can be installed quickly Ĥ. Cable Barrier – a flexible system of cables suspended between posts ģ. W-Beam Guardrail – a standard highway guardrail with a w-shaped profile Ģ. There are 9 common bridge guardrail types:ġ. The bridge railing guardrail is used along the bridges, viaducts and roads, finished with powder coating and zinc gavanizing.īridge guard railings are made of carbon steel, stainless steel or other base materials, supplied in various designs to meet specific grades and requirements. Furthermore, they must be tested to confirm compliance before being put into production and sale. Regarding production and sale, bridge guardrails should comply with applicable local regulations and standards. The main differences between bridge guardrails and other guardrails are that bridge guardrails are taller and wider than standard Type A guardrails, as they must protect against higher-velocity impacts due to their location on bridges. They are designed to absorb impact and reduce the likelihood of serious injury or death if a collision were to occur. Bridge guardrails are a type of barrier used to separate lanes of vehicular traffic on bridges.

Bridge guard rails