1.
Answer these questions.
write a description of the railroad bridge
Answers
Answer:
here is ur answer
Explanation:
The track structure types include ballasted track, direct fixation (“ballastless”) track, and embedded track.
The report considers the characteristics and interfaces of vehicle wheels and rail, tracks and wheel gauges, rail sections, alignments, speeds, and track moduli.
The report includes chapters on vehicles, alignment, track structures, track components, special track work, aerial structures/bridges, corrosion control, noise and vibration, signals, traction power, and the integration of LRT track into urban streets.
Answer:
A railroad bridge is a structure constructed for the exclusive purpose of carrying railroad traffic across an obstruction. Since the construction of the first modern railway bridge in the 1820s, railway bridge engineering has evolved extensively. Locomotives have changed from steam to diesel electric along with the weight of railway freight car loads and equipment. While future freight equipment weights will be limited by economics associated with railway infrastructure, maintenance, and renewal, it is most likely that train shipments and axle loads will increase. The extension of bridge asset life through research and assessment is critical to the safety of railway bridges; therefore, this chapter covers design issues and current research on the matter. It includes type classification, analysis and design, static scheme and construction details, and finally related research updates.