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trunnion (sometimes a "Scherzer" rolling lift), raises the span by rolling on a track resembling a rocking-chair base. The "Scherzer" rolling lift is a refinement patented in 1893 by
American engineer
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type combines rolling lift with longitudinal motion on trunnions when opening. It was patented (1901) by
Theodor Rall. One of the few surviving examples is the
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that raises the span(s). The
Chicago bascule name derives from the location where it is widely used, and is a refinement by
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in the 1850s, very long, heavy spans could not be moved quickly enough for practical application.
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Animation of a double-leaf
Strauss fixed-trunnion bridge (based on engineering drawings from the
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to operate, while providing the possibility for unlimited vertical clearance for marine traffic.
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Moveable bridge with a counterweight which keeps the span(s) balanced during the upswing
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549:"Analysis of the force distribution on operating mechanisms in a bascule bridge"
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Bascule bridges have been in use since ancient times, but until the adoption of
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180:"Strauss bascule" redirects here. For the company started by its inventor, see
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519:"Broadway Bridge, Spanning Willamette River at Broadway Street [
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438:, Scherzer, William, "Lift-Bridge", issued 26 December 1893
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The counterweight is often hidden below the road surface in the bridge
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Joseph
Strauss (engineer) § Early career and the bascule bridge
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Pedestrian, bicycle, automobile, truck, light rail, heavy rail
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to the span may be located above or below the bridge deck.
31:
This animation shows the movement of a double-leaf bascule.
463:(3rd ed.). Urban Adventure Press. pp. 32, 35.
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407:"Landmark Designation Report: Historic Chicago Bridges"
209:(sometimes a "Chicago" bascule) rotates around a large
416:. September 2007 . pp. 12, 15 (pdf pages 14, 17)
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145:with a counterweight that continuously balances a
926:List of lists of covered bridges in North America
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287:Animation of a rolling lift bridge (such as the
195:There are three types of bascule bridge and the
485:"Patent number 669348: T. Rall movable bridge"
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191:A road sign indicating a bascule bridge ahead
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459:Wood Wortman, Sharon; Wortman, Ed (2006).
489:United States Patent and Trademark Office
338:for a list of other movable bridge types
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152:The name comes from the French term for
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523:], Portland, Multnomah County, OR"
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591:
515:Historic American Engineering Record
303:Bascule bridge in the down position
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547:Van Zantvliet, P. S. (June 2015).
14:
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894:medieval stone bridges in Germany
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561:from the original on 2021-09-21.
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123:Site and prefabrication specific
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414:Commission on Chicago Landmarks
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851:Visual index to various types
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243:(1913), in Portland, Oregon.
674:Cantilever spar cable-stayed
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1063:Bridges by structural type
372:Movable bridge engineering
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365:Koglin, Terry L. (2003).
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962:Continuous truss bridges
935:Lists of bridges by size
872:Lists of bridges by type
461:The Portland Bridge Book
175:
375:. John Wiley and Sons.
331:List of bascule bridges
230:William Donald Scherzer
217:of the fixed-trunnion.
133:(also referred to as a
921:List of bridge–tunnels
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689:Double-beam drawbridge
491:(referenced online by
316:Double-beam drawbridge
192:
914:vertical-lift bridges
864:
326:Johnson Street Bridge
190:
972:Masonry arch bridges
952:Cable-stayed bridges
584:at Wikimedia Commons
367:"4. Bascule Bridges"
899:multi-level bridges
527:Library of Congress
436:US grant 511713
45:Plate girder bridge
21:
957:Cantilever bridges
947:Suspension bridges
889:cantilever bridges
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786:Navigable aqueduct
193:
19:
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1003:Bridge to nowhere
904:road–rail bridges
621:-related articles
580:Media related to
382:978-0-471-41960-0
273:Henry Ford Bridge
127:
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49:cantilever bridge
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991:Additional lists
627:Structural types
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1058:Bascule bridges
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998:Bridge failures
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884:bascule bridges
879:List of bridges
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744:Rolling bascule
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582:Bascule bridges
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215:Joseph Strauss
197:counterweights
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139:lifting bridge
131:bascule bridge
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20:Bascule bridge
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154:balance scale
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967:Arch bridges
909:toll bridges
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825:Through arch
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659:Cable-stayed
542:
530:. Retrieved
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497:. Retrieved
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418:. Retrieved
386:. Retrieved
371:
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236:
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224:rolling lift
221:
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130:
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63:swing bridge
769:Transporter
749:Submersible
734:Retractable
342:Straussbrug
170:steam power
59:Lift bridge
1052:Categories
808:Suspension
724:Drawbridge
694:Extradosed
669:Cantilever
654:Burr Truss
644:Box girder
352:References
345:(in Dutch)
321:Drawbridge
235:The rarer
135:drawbridge
85:Span range
69:Descendant
41:Drawbridge
942:By length
781:Multi-way
532:April 21,
499:April 21,
420:April 21,
118:Falsework
1037:Category
801:Vlotbrug
714:Moveable
556:Archived
309:See also
257:abutment
206:trunnion
120:required
93:Material
37:Ancestor
1012:Related
982:Tallest
977:Highest
845:Viaduct
840:Tubular
830:Trestle
796:Pontoon
739:Rolling
729:Folding
719:Bascule
679:Covered
495:). 1901
388:May 25,
164:History
141:) is a
101:Movable
77:Carries
55:Related
820:Timber
664:Canopy
619:Bridge
467:
442:
379:
204:fixed-
158:energy
112:Medium
835:Truss
813:types
759:Table
754:Swing
559:(PDF)
552:(PDF)
410:(PDF)
176:Types
137:or a
96:Steel
88:Short
791:Pile
764:Tilt
709:Moon
684:Crib
639:Beam
634:Arch
534:2013
501:2013
465:ISBN
422:2013
390:2009
377:ISBN
237:Rall
220:The
211:axle
202:The
147:span
72:None
704:Log
699:Jet
521:sic
104:Yes
1054::
554:.
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517:.
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449:^
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398:^
369:.
232:.
129:A
61:,
47:,
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611:e
604:t
597:v
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503:.
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392:.
291:)
275:)
259:.
184:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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