Editing Cable-stayed bridge (section)

{{Short description|Type of bridge with cables directly from towers to deck}}
{{more footnotes needed|date=July 2020}}
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<!--Note that this taxobox is for generic bridge types, not specific (except as an example). The ancestor, sibling, and descendent references should follow the current taxonomy at media:BridgeTaxonomy.jpg, see also Talk:Bridge -->

{{Use dmy dates|date=March 2016}}
{{Infobox bridge type
|image="Russian bridge" in Vladivostok.jpg
|image_title=The [[Russky Bridge]] in [[Vladivostok]] has a central span of {{convert|1104|m|ft}}, the world's longest cable-stayed bridge span as of 2024.
|sibling_names=[[Extradosed bridge]]
|descendent_names=[[Side-spar cable-stayed bridge]], [[Self-anchored suspension bridge]], [[cantilever spar cable-stayed bridge]]
|ancestor_names=[[Suspension bridge]]
|carries=[[Pedestrian]]s, [[bicycle]]s, [[automobile]]s, [[truck]]s, [[light rail]]|span_range=Medium to Long
|material=[[Steel rope]], [[post-tensioned concrete]] [[box girder]]s, [[steel]] or [[concrete]] [[Abutment|pylons]]
|movable=No{{Citation needed|reason=[[Puente de la Mujer]] is a moveable cable-stay beidge.|date=January 2021}}
|design=medium
|falsework=Normally none
}}
[[File:Öresundsbron och tanker.jpg|thumb|[[Øresund Bridge]] from [[Malmö]] to [[Copenhagen]] in [[Sweden]] and [[Denmark]] ]]
A '''cable-stayed bridge''' has one or more ''towers'' (or ''pylons''), from which [[wire rope|cable]]s support the bridge deck. A distinctive feature are the cables or [[wikt:stay#Etymology 3|stays]], which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern [[suspension bridge]], where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge is optimal for spans longer than [[cantilever bridge]]s and shorter than suspension bridges. This is the range within which cantilever bridges would rapidly grow heavier, and suspension bridge cabling would be more costly.

Cable-stayed bridges found wide use in the late 19th century. Early examples, including the [[Brooklyn Bridge]], often combined features from both the cable-stayed and suspension designs. Cable-stayed designs fell from favor in the early 20th century as larger gaps were bridged using pure suspension designs, and shorter ones using various systems built of [[reinforced concrete]]. It returned to prominence in the later 20th century when the combination of new materials, larger construction machinery, and the need to replace older bridges all lowered the relative price of these designs.<ref>{{Cite news|url=https://www.scientificamerican.com/article/popular-cable-stay-bridges-rise-across-u-s-to-replace-crumbling-spans/|title=Popular Cable-Stay Bridges Rise Across U.S. to Replace Crumbling Spans|last=Nordrum|first=Amy|work=Scientific American|access-date=30 April 2017|language=en}}</ref>