2/17/2024 0 Comments Highway underpass bridges modelsTexas State RR concete trestle _TexHwys_ June86 cover, p.4 Levee- concrete flyover on a levee, modeling ModRRer Jan04 p.115 Steel-beam supported concrete w steel lattice rails, early 1920s Route 66, the Mother Road p.9Ĭajon Wash above Devore, low trestle w concrete piers, 1951 Warbonnet 3Q 03 p.3Ĭoncrete trestle _NMRA Data Sheets_ D6b.3Ĭoncrete trestle bents, how to build in wood or… UP (ex-SP, ex-HE&WT) at Trinity River, 19 miles south of Livington combination thru pony truss + 2 deck girders + thru box truss + thru girder + wood trestle approaches Mod RRer Feb02 p.43 Foundations for Arches will go from 11 to 16 feet below bottom of Bay." Rolling Lift Bridge will give clear waterway of 100 feet. There will be three railroad tracks and two Interurban tracks and County Driveway. Total length, 10,642 feet height, 16 feet above mean low tide Road way portion width, 154 feet Arch Bridge width, 66 feet will consist of 28 Arches with a 70 foot span, a length of 2,358 feet. Commenced September 21, 1909, to be completed December 1910. Per _Gulf Intracoastal Waterway_ chart, Army Corps of Engineers,1965ġ6’ above mean low tide per 1910 postcard Original 2455’ viaduct, 8219’9” concrete faced embankmentsĭrawbridge 120’ long, longest in world when built, replaced 1988. Original 28 concrete arches & steel draw spanħ9 additional concrete arches built 1917-1922 Historic American Buildings Survey/Historic American Engineering Record Texas Chief Galveston connection on Galveston causeway at Virginia Point 1966 _Santa Fe in the Lone Star State_ vol.1 p.80 Galveston causeway bascule bridge, prize HO model by Gil Freitag, In Corpus Christi: a picture postcard history pic.87,88,89,144 Nueces Bay causeway, concrete arch 1912, earlier timber trestle. Lake Champlain causeway trestle, HO Rutland Stone viaduct model w expanding foam ModRRer Oct02 p.82ī&M bascule draw at Gloucester, Mass, pix, plansī&OCT bascule drawbridge, pix, plans Mod RRer Dec73 p.58ĪTSF bridge at Topock AZ on Colorado River blt 1890, replaced 1945, view w EB freight 1909 Warbonnet 3Q-2008 p.6 Stone arch bridge over one lane road, on GC&SF near Somerville TX Stone arch bridge, curved, modification of "Mountains in Minutes" Steel arch thru truss: HellGate in N _N Scale_ MarApr 2001 p.61 Steel arch similar to Stony Creek, HO plans & templates Steel arch truss bridge, similar to ATSF Canyon Diablo, Santa Ana River multiple arch bridge, near Riverside, Masonry arch bridge, scale elevation & proto pix under construction w falsework Mod RRer Apr48 p.253 Mod RRer Jan2001 p.38Ĭoncrete arch viaduct modeled in blue styrofoam ModRRer Dec03 p. photos, scale drawings & constructionĪrticle Bridges & Buildings for Model RRers (Kalmbach) p.32Ĭoncrete arch- Marsh Rainbow Arch Bridge, triple thru-arch Riverton KS blt 1922 Mod RRerp.82Ĭoncrete arch, KCS over Hwy 50 near KCMO. There are two main findings, including the high sensitivity to Bayesian updating (especially when the damage predicted by numerical analysis does not match the real damage) and the criteria used to decide when re-open bridges to traffic.My file opf published bridge references, some are scale drawings, many just photos, some are construction articles.īridge basics by Tony Koester Model Railroader Oct06 p.50Ĭanyon Diablo bridge.ATSF. This tool was applied to an old highway RC viaduct. Different decision criteria regarding the practicability of bridges are discussed, and a new criterion is proposed. The risk is calculated by combining the aftershock hazard using the Omori law and the fragility curves of the structure, which are calculated using the regression analysis of a sample of results obtained with data randomly generated by the Latin Hypercube Sampling technique and updated based on the results of in situ inspection. In particular, we propose an effective tool to speed up the decision-making process involved in evaluating the seismic risk of mainshock-damaged bridges in the context of aftershocks. For this reason, this paper presents a method for evaluating post-earthquake bridge practicability based on a rational combination of information derived from numerical analyses and in situ inspections. The use of a pure analytical tool to assess the aftershock risk of a structure can be contrasted with the limited time available to make a decision about the usability of a structure. Critical issues in emergency management after a seismic event are assessing the functionality of the main infrastructures (hospitals, road network, etc.) and deciding on their usability just after the mainshock.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |