Mechanical Characteristics and Structural Optimization of Steel Reinforced Concrete Service Bridge
The traditional reinforced concrete structure is not suitable for the design of long-span service bridge due to its large dead weight.The steel reinforced concrete structure possesses the advantages of large rigidity,good ductility and light dead weight,rendering it highly suitable for large-span structure.It is reasonable to introduce it into the design of a working bridge as a replacement for the traditional reinforced concrete structure.In this paper,the mid-span steel concrete working bridge on the control gate of a water conservancy project was taken as an engineering example.At the same time,the influence of the geometric size of the section steel on the mechanical performance of the service bridge was studied,and the conclusion was drawn and fed back to the actual design work.On the basis of the research,the genetic algorithm was used to compile a program to optimize the structure of the stressed main beam of the working bridge,in order to achieve higher engineering economic benefits.
work bridgeforce characteristicstructural optimization
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