Structural Optimization of Reinforced Concrete Aqueduct with Multi-Longitudinal Beams Part II: Application

Abstract:

Based on a 3-D solid finite element parametric model, an optimization design method of reinforced concrete aqueduct with multi-longitudinal beams is proposed. In this method, the stress of sidewall and subplate is controlled by the sectional crack-resisting criteria, the space between longitudinal beams or crossbeams is decided by the coordination of structural deformation, and the bottom stress of longitudinal beams or crossbeams is restrained by the nominal tensile stress. Taking the lightest dead weight of aqueduct as the objective of optimization, this method is able to give the optimal sizes and distribution patterns of the main load bearing members. The internal force of each structural element of the optimized aqueduct is calculated by a 3-D beam-shell finite element numerical model and thus the reinforcements are arranged. Compared with the prototype, the optimized aqueduct shows the advantages of lighter weight, more reasonable stiffness distribution, coordinated deformation and economical reinforcements.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 323-326
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.323
• Online since: May 2011
• Authors: Jun Feng Guan, Xiao Ke Li, Shun Bo Zhao
• Keywords: Multi-Longitudinal Beam, Optimization, Reinforced Concrete Aqueduct, Sectional Crack-Resisting, Structural Deformation Coordination

References

[1] J. Guan, X. Li, S. Zhao: submitted to Advanced Materials Research, 2011.

[2] J. Guan: Research on Theory and Application of Simulation Model Test for Reinforced Concrete Structure (Doctoral Dissertation of Dalian University of Technology, Dalian 2010). (In Chinese)

[3] DL/T 5057-1996: Code for Design of Hydraulic Concrete Structures. (China Water Power Press, Beijing1996). (In Chinese)