Open AccessOptimization of Columns and Bent Caps of RC Bridges for Cost and CO2 Emission
Author(s) -
A. Kaveh,
L. Mottaghi,
Ramezan Ali Izadifard
Publication year - 2022
Publication title -
periodica polytechnica. civil engineering/periodica polytechnica. civil engineering (online)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.406
H-Index - 19
eISSN - 1587-3773
pISSN - 0553-6626
DOI - 10.3311/ppci.19413
Subject(s) - bent molecular geometry , minification , structural engineering , reinforced concrete , compressive strength , shear (geology) , optimal design , environmental science , computer science , materials science , engineering , mathematical optimization , composite material , mathematics , machine learning
This paper describes a methodology for optimal seismic design of reinforced concrete 3D columns and bent caps (beams) of bridges. Design variables include compressive strength of concrete, geometry, as well as longitudinal and shear reinforcement of columns and beams. The optimization is performed to minimize the cost and CO2 emissions using the enhanced colliding bodies optimization (ECBO) algorithm. The trade-off between cost and CO2 emissions shows that in the design for minimizing CO2 emissions compared to the design based on the cost minimization, increasing 1.4 % in cost can decrease CO2 emissions by 6.1%.