TY - NEWS
TI - Determination of the structural efficiency of short bridges according to their physical and economic characteristics
AU - Pineda Rodríguez, J R
AU - Rojas Suárez, J P
AU - Prato Duarte, Fabian Alberto
AB - Bridges are structures designed and built to overcome natural and artificial
obstacles. The analysis and design of bridges is carried out following principles of physics
applied to engineering. The aim is to estimate the structural efficiency of short bridges
according to their physical and economic characteristics through equations that measure the
cost tendency, identifying which ones have the highest structural efficiency for a given length
between supports. The design of short bridges was carried out by means of a mathematical
modeling in a software based on finite elements. A comparative cost analysis was carried out
for various types of short vehicular bridges designed with reinforced concrete decks supported
by reinforced concrete beams; post-tensioned concrete beams; and structural steel beams. It
was determined that the bridge with a reinforced concrete deck is the alternative with the best
structural efficiency according to its physical and economic characteristics with spans of 12
meters and 18 meters. According to the estimated cost equations, it is concluded that, from
18.49 meters post-tensioned concrete bridges are the most efficient physically and
economically. Structural steel bridges are the least structurally efficient for short bridges.
Therefore, the construction of short vehicular bridges with structural steel is not feasible.
DA - 2021-06-04
UR - https://repositorio.ufps.edu.co/handle/ufps/6598
ER -