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- W2351179527 abstract "Nonlinear failure mode of Reactive Powder Concrete(RPC) is determined according to the ultra-high strength of RPC: the compressive area concrete is assumed to be not failed and the stress distribution is linear;the tensile stress of the tensioning area concrete is calculated and the contribution of the nonlinear stage is taken into account.On the basis of the failure mode,a series of railway RPC T-beams are optimized.One genetic algorithm program is worked out to optimize the T-beams which are modeled in the ANSYS program.The depth-tospan ratio of the optimized RPC T-beams is 1/10,1/12,1/14 and 1/16 and the span is 16,20,24 and 32 m.The optimization calculation results show that the economical depth-to-span ratio of railway RPC T-beams is 1/14.The main constraint conditions to affect the optimization results are the stiffness and the concrete tensile strain.The structural requirements will affect the optimization results under certain conditions." @default.
- W2351179527 created "2016-06-24" @default.
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- W2351179527 date "2009-01-01" @default.
- W2351179527 modified "2023-09-28" @default.
- W2351179527 title "Optimization Design Study of Railway Reactive Powder Concrete Bridge" @default.
- W2351179527 hasPublicationYear "2009" @default.
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