دانلود رایگان پاورپوینت مهندسی راه آهن (انگلیسی)

FUNCTIONS OF RAILS
Rails provide hard, smooth and unchanging surface for passage of heavy moving loads with minimum friction between steel rail and steel wheel

Rails bear the stresses developed due to heavy vertical loads, lateral and braking forces and thermal stresses

The rail material used is such that it gives minimum wear to avoid replacement charges and failure due to wear

Rails transmit the loads to sleepers and consequently reduce pressure on ballast and formation below