T1 - A Case Study on Two-Span Post-Tensioned Concrete Bridge Decks with Different Span Lengths and Investigation on Prestressing Tendons with Comparisons
"A Case Study on Two-Span Post-Tensioned Concrete Bridge Decks with Different Span Lengths and Investigation on Prestressing Tendons with Comparisons". Sakarya University Journal of Science 24 (2020 "A Case Study on Two-Span Post-Tensioned Concrete Bridge Decks with Different Span Lengths and Investigation on Prestressing Tendons with Comparisons" Journal = ,Ī Case Study on Two-Span Post-Tensioned Concrete Bridge Decks with Different Span Lengths and Investigation on Prestressing Tendons with Comparisons Results show that a good optimization enables us to have the optimal PT tendon using with lower cost. Concluded that optimization on PT tendon areas at bridge deck sections is possible by investigating the main effects on it. The “best” tendon using was examined for the investigated deck sections. Also, different effects on PT tendons were studied and relevant comparisons were submitted. Interaction between span lengths and PT tendons areas was investigated. By iterations, PT tendons layout and types were studied. To balance the deck section stresses, prestressing tendons were used. Boundary conditions were defined with their real mechanical properties. Permanent, transient and time-dependent loading types were considered.
#Midas civil tendons software
The FE software package Midas Civil was used. Two-dimensional Finite Element (FE) deck models were created by frame elements. To reduce the self-weight of the deck, at mid spans, deck section was used as voided section and at diaphragm regions, section was used as filled. For three different span lengths, two-span bridge decks were investigated. The aim of this paper is to study on finite element analysis of two-span PT concrete bridge decks with different span lengths.
By increasing load carrying capacities on conventional reinforced concrete structures, PT is considered as an advanced technology in engineering. Post-Tensioned (PT) concrete system is one of the widely used bridge superstructure types because of its better load capacity performance.
Arroyo “Optimization of prestressed concrete bridge decks” Computers & Structures, vol. Trochymiak “The selection of a system of prestressing tendons in hyperstatic beams as a problem of linear integer programming” Structural and Multidisciplinary Optimization, vol.
Ghallab, “Calculating ultimate tendon stress in externally prestressed continuous concrete beams using simplified formulas” Engineering Structures, vol. Lee, “Flexural behavior of posttensioned flat plates depending on tendon layout” Advances in Materials Science and Engineering, vol. Samartin “Optimized design of the prestress in continuous bridge decks” Computers and Structures, vol. Nasr, “Behavior of bonded and unbonded prestressed normal and high strength concrete beams” HBRC Journal, vol. Pisani, “Behaviour under long-term loading of externally prestressed concrete beams” Engineering Structures, vol. Fanning, “Nonlinear models of reinforced and posttensioned concrete beams” Electronic Journal of Structural Engineering, vol. Venkat, “Genetic algorithm based optimum design of prestressed concrete beam” International Journal of Civil and Structural Engineering, vol. Ostinelli, “Ultimate behaviour and design of post-tensioned composite slabs” Engineering Structures, vol.
0 kommentar(er)
