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Structural Engineering and Mechanics
  Volume 45, Number 6, March25 2013, pages 723-740
DOI: http://dx.doi.org/10.12989/sem.2013.45.6.723
 


A parametric study of optimum tall piers for railway bridge viaducts
Francisco J. Martinez-Martin, Fernando Gonzalez-Vidosa, Antonio Hospitaler and Victor Yepes

 
Abstract
    This paper presents a parametric study of reinforced concrete bridge tall piers with hollow, rectangular sections. Such piers are typically used in railway construction of prestressed concrete viaducts. Twenty one different piers have been studied with seven column heights of 40, 50, 60, 70, 80, 90 and 100 m and three types of 10-span continuous viaducts, whose main span lengths are 40, 50 and 60 m. The piers studied are intermediate columns placed in the middle of the viaducts. The total number of optimization design variables varies from 139 for piers with column height of 40 m to 307 for piers with column height of 100 m. Further, the results presented are of much value for the preliminary design of the piers of prestressed concrete viaducts of high speed railway lines.
 
Key Words
    ant colony optimization; concrete structures; economic optimization; structural design; tall piers
 
Address
Francisco J. Martinez-Martin: Department of Geotechnical Engineering, Universitat Politecnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain
Fernando Gonzalez-Vidosa, Antonio Hospitaler and Victor Yepes: Department of Construction Engineering, Institute of Concrete Science and Technology (ICITECH), Universitat Politecnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain
 

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