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Topic: Plate girder bridge

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	Bridge - Wikipedia, the free encyclopedia
		For example, it may be a bridge carrying a highway and forbidden for pedestrians and bicycles, or a pedestrian bridge, possibly also for bicycles.
		Bridges may be classified by how the four forces' of tension, compression, bending and shear are distributed through their structure.
		Bridges can also be classified by their lineage, which is shown as the vertical axis on the diagram to the right.
	www.wikipedia.org /wiki/Bridge (1167 words)

	Bridge
		Owing to practical limitation in the grade of the bridge deck this type is quite restricted in its load carrying capacity relative to its span.
		This kind of bridge is particularly pleasing to the visual senses, with the most beautiful of the type being generally acknowleged as the Golden Gate Bridge at the entrance to San Francisco Bay.
		This type of bridge is typically used for temporary military use, but a number of permanent bridges of this type have been built in the state of Washington, USA.
	www.sciencedaily.com /encyclopedia/bridge (2305 words)

	Through & deck plate Girder bridge
		The cover plates are made of postcard stock; all are 1' 6" wide, but they vary in length from the shortest (the top cover plate) to the longest, which spans the length of the girder around both corners and to the bases at the bottom ends as in Fig.
		The entire bridge is painted a dull fl and lettered in silver, white or gold, depending on the practice of your road.
		This type of bridge is built by the same method as the through girder model, except that in this case the ties and rails are laid on top of the structure.
	www.trainweb.org /s-trains/davis/girder.htm (1369 words)

	Plate Girder
		Plate girder bridges carry their load with two heavy beams made from sections of steel plate that are welded together.
		The Mineral Creek bridge near Silverton is a combination structure consisting of a plate girder bridge on the west side and a low wooden trestle to the east.
		The original plate girder span was constructed in 1907 and served on the Colorado Springs and Cripple Creek District until it was moved to its present location in 1916.
	ghostdepot.com /rg/bridges/plate/plate.htm (152 words)

	MiniatureScapes - Structures - Plate Girder Bridge (Site not responding. Last check: 2007-10-15)
		The plate girder bridge seemed to be right type of short, but sturdy bridge for this module.
		They are fake plate girder bridges because I simply attached the sides to the subroadbed, thereby providing the look of the bridge, but yet keeping a solid support for the track.
		Most of the bridges are skewed over the two creeks on the module, so the longest bridge came out to be 20 scale feet.
	users2.ev1.net /~pvanvliet/Structures/PlateGirderBridges (609 words)

	PUBLIC ROADS On-Line (Autumn 1996) - FHWA Launches New Nationwide Seismic Bridge Design Training
		Bridge designers have had difficulty applying the American Association of State Highway and Transportation Officials (AASHTO) bridge seismic design specification since its adoption in 1983 because it requires an understanding of dynamic analysis, seismic hazard concepts, elastic and inelastic structural response, soil-structure interaction, and structure ductility, among other things.
		The superstructure is composed of four steel plate girders with a composite cast-in-place concrete deck.
		All substructure elements are oriented to the centerline of the bridge.
	www.tfhrc.gov /pubrds/fall96/p96au13.htm (1761 words)

	Illustration Of Roof Girder Truss (Site not responding. Last check: 2007-10-15)
		timber joinery 33 0.16% girder truss 33 0.16% insulating a...
		of untreated wood a truss bridge should be covered with a roof and enclosed...
		Girder 1420 (1); Bridging beam 1429 (2); Joists (1...
	www.best-for-roofing.com /OPG/illustration-of-roof-girder-truss.html (446 words)

	FHWA High Performance Steel Designers' Guide Section 3
		The girder designs had 2-span continuous layout, covering a span range of 150', 200' and 250', variable girder spacing of 9' and 12', and designs in grade 50W, HPS 70W and a variety of hybrid combinations.
		The bridge consisted of two 235.5-foot spans, carrying a 28-foot roadway on three continuous welded plate girders spaced at 10' 6" on centers.
		It is a three-span continuous welded steel plate girder bridge with spans of 320'-416'-320'.
	www.fhwa.dot.gov /bridge/guide03.htm (1664 words)

	Bridges In The USA And Canada (Site not responding. Last check: 2007-10-15)
		The Fred Hartman Bridge near Houston, Texas is a cable-stayed bridge with a very unusual double-diamond design for its pylons, each of the two roadways passing through the widest part of each diamond.
		The longest bridges in the world, with an overall length of nearly twenty-four miles each, are the two parallel bridges (each being actually made up of over two thousand of smaller spans) across Lake Pontchartrain, connecting the city of New Orleans to I-12 and Covington.
		The bridge, which opened in 1951, is the replacement for the famous original suspension bridge which collapsed due to resonance in winds of only 40 miles per hour a few months after its completion in 1940.
	freespace.virgin.net /john.cletheroe/usa_can/bridges/index.htm (6951 words)

	Context for World Heritage Bridges
		Bridges were one of the first structural uses of iron, preceded only by columns (not yet beams) to support the floors of textile mills.
		Bridges in areas other than Europe and the USA should be investigated, as the colonial empires of several nations were at their peak during the autumn years of the 19th century.
		This bridge, designed by E H Duggan and Phelps Johnson with Ralph Modjeski as consultant, was criticized by many engineers as being the ugliest, while the cantilever was generally regarded as a type, especially those of American origin, whose profile was unsightly despite their record lengths.
	www.icomos.org /studies/bridges.htm (14344 words)

	Expedited Concrete Box Girder Bridge Removals Over the Interstate in One-Night Interstate Closures - Attachments
		Bottom slabs of box girders may be considered to be protective covers for preliminary work performed on the top slab inside the limits of the exterior girders.
		During periods when the roadway is closed to public traffic, debris from bridge removal operations may be allowed to fall directly onto the lower roadway provided adequate protection is furnished for all highway facilities.
		The bridge removal plan shall be prepared by a Professional Engineer registered in the State of Iowa.
	www.fhwa.dot.gov /bridge/iademoat.htm (1964 words)

	Polymorf - Knowhere - Bridges (Site not responding. Last check: 2007-10-15)
		A bridge is basically a beam that is designed to carry a live load such as vehicles, people,
		Therefore the stresses imposed on a bridge are
		girder bridge design in which the girder is many times taller in cross-section than it is wide.
	www.polymorf.net /engineer23.htm (283 words)

	Bridge - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-15)
		The purpose of a bridge is to allow passage of people, vehicles, trains or ships
		The story starts out simply enough: Jess Aarons wants to be the fastest boy in the fifth grade--he wants it so bad he can taste it.
		Technology and Society: A Bridge to the 21st Century (2nd Edition)
	encyclopedia.worldsearch.com /bridge.htm (598 words)

	McGraw-Hill AccessScience: Plate girder
		Plate girders are commonly used in bridge structures where large transverse loads and spans are encountered.
		On average, the height (measured from the top of the top flange to the bottom of the bottom flange) of plate girders is one-tenth to one-twelfth the length of the span, which can vary based on the loading and architectural requirements.
		The dimensions of plate girders are tailored to specific applications by adjusting the width and thickness of the web and flange plates along the length of the beam.
	dx.doi.org /10.1036/1097-8542.526900 (291 words)

	chapter1 (Site not responding. Last check: 2007-10-15)
		Of greater significance is that the moment rotation testing performed on plate girders at both Lehigh University and the University of Nebraska Lincoln has eliminated concerns for using HPS-70W in designing compact sections, when appropriate, for their plastic moment resistance.
		Fatigue testing performed on treated and untreated specimens cut from the plate girder concluded that, for the conditions tested, UIT altered the performance of a Category C= detail by imparting to it the fatigue strength of a Category B detail.
		Investigation of Weld Cracking in 70 ksi Steel Bridges - The FHWA staff are assisting researchers at the Virginia DOT to determine the cause of weld cracking in several bridges, and are applying the latest fracture mechanics research to assess their criticality.
	www.tfhrc.gov /structur/struc98/ch1.htm (2974 words)

	LUSAS Engineering Consultancy Projects - Bridge Analysis (Site not responding. Last check: 2007-10-15)
		Stability analysis of a road bridge to demonstrate adequacy, which could not be shown with traditional methods.
		Seismic response analysis of a major bridge crossing.
		Buckling assessment of a plated lattice girder bridge structure
	www.lusas.com /consultancy/bridge_projects.html (242 words)

	Model Layouts Page - CVRR Plate Girder Bridge
		The plate girder bridge is wide enough to support two tracks.
		See, between the time that I moved the bridge from the layout to the workbench and the time I started to apply the decals, several weeks had passed.
		When I started to apply the decals on the side of the bridge, I simply was not thinking and did so with it in its normal, upright position.
	justtrains.railfan.net /Model_Layouts_CVRR_PlateGirderBridge.html (259 words)

	SC Solutions: San Francisco Oakland Bay Bridge (Site not responding. Last check: 2007-10-15)
		As a part of this project a two- and three-span steel plate girder bridge, and a three-span steel double-box girder bridge were examined.
		Additionally, 45-degree skews at the bent and abutment locations were introduced, and their effects were investigated as a design alternative of the two-span plate girder bridge structure.
		Following the linear analysis a series of nonlinear pushover analyses were conducted to study behavior of the system under lateral loading.
	www.scsolutions.com /aisi1.html (188 words)

	East Broad Top Railroad Virtual Tour: Runk Road Bridge (Site not responding. Last check: 2007-10-15)
		The bridge was undamaged by the flood of 1889.
		The current deck steel plate girder bridge was built about 1900.
		The south one is covered by a layer of concrete and both have a concrete cap supporting the bridge.
	www.spikesys.com /EBT/Tour/rrbrdge.html (171 words)

	19031 Plate Girder htm
		These injection molded styrene bridge girders the same part used for the #1903 and 1904 Plate Girder Bridge Kit.
		Each package includes two (2) complete sprues of plate girder bridge parts.
		Model builders who have purchased these plate girders buy enough for CV to package them for public sale!
	www.cvmw.com /1900/19031.htm (65 words)

	PA Model Railroad Supply Structures Bridges and Viaducts (Site not responding. Last check: 2007-10-15)
		UNITRACK 248mm (9 3/4") Truss Bridge, Gray, 1 ea.
		UNITRACK 248mm (9 3/4") Truss Bridge, Green, 1 ea.
		UNITRACK 186mm (7 5/16") Plate Girder Bridge, Gray, 1 ea.
	www.parail.com /pmrstrbridges.asp (147 words)

	Girder Bridge (Site not responding. Last check: 2007-10-15)
		These highly detailed injection-molded styrene kits fill a long over due need in model railroading.
		Until now, only very primitive or absolutely “Toy” versions of this common and widely used bridge type has been available in any scale.
		Now, exciting, super detailed plate girder bridges are available featuring easy assembly and reasonable cost.
	www.ablehobby.com /girder_bridge.htm (97 words)

	Articles - Plate girder bridge (Site not responding. Last check: 2007-10-15)
		A plate girder bridge is a bridge often seen supporting railroad roadbeds over short spans, this bridge may be a shallow U-shape in cross section with the roadbed at the bottom of the U or the bridge may be entirely under the roadbed.
		For the under roadbed type the two members of the bridge will be connected at the bottom with additional light truss elements and at the top with decking to form a box structure.
		The above roadbed type cannot be completely boxed, so additional stiffeners may be provided as seen in the illustration above left.
	www.oldion.com /articles/Plate_girder_bridge (177 words)

	Mirax Hobbies ATLAS 885 PLATE GIRDER BRIDGE HO
		The Plate Girder Bridge has been designed to be used with your HO SCALE Atlas railroad layouts.
		FEATURES: Nickel-silver rails and fl ties One piece molded fl girder bridge (built in track--runs down the center of the bridge)
		COMMENTS: These bridges are terrific when used in multiple arrangements with Atlas pier sections--for spanning highways, crossing streams and gulleys and etc.
	www.mirax.cl /detalles.asp?codigo=30716 (115 words)

	Atlas N Code 80 Plate Girder Bridge - 2548 (Site not responding. Last check: 2007-10-15)
		All bridges are the same length as a standard 5 inch Atlas straight track section.
		You can snap them together in any number and any arrangement to form your own design or to realistically replicate an existing bridge structure.
		You don't have to build this Atlas Plate Girder Bridge to be able to add it to your layout.
	www.ehobbies.com /1000-5189.html (381 words)

	Fairfield-Mabey Ltd: Steel Plate Bridge / Girder / Monopile Manufacturer
		Fairfield-Mabey Ltd: Steel Plate Bridge / Girder / Monopile Manufacturer
		Fairfield-Mabey Ltd specialise in the provision of high quality steelwork for highway bridges, railway bridges, footbridges, monopiles, wind turbine towers and other steel structures.
		The company provides all forms of service from the supply of simple plated sections through to the design, fabrication, painting and erection of complete structures.
	www.fairfieldmabey.com (68 words)

	CENTRAL VALLEY HO SCALE MODELRAILROAD BRIDGES
		HO 150' PRATT TRUSS BRIDGE KIT SINGLE TRACK
		HO 72' PLATE GIRDER BRIDGE KIT SINGLE TRACK
		HO 72' PLATE GIRDER BRIDGE KIT DOUBLE TRACK
	www.modeltraincrossing.com /central_valley_index.htm (24 words)

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