This design is mainly about Ningbo City Lai Yuen Hing Bridge upper structure design. According to the engineering geological data and actual, put forward three kinds of different bridge type scheme comparison and selection:1T shaped reinforced concrete simply supported beam bridge of reinforced concrete hollow slab bridge,2( single ),3( double span reinforced concrete hollow slab bridge ). The spirit of "safe, economy, beautiful, practical" eight-character principle, as well as reinforced concrete T beam bridge the advantages, determined that the bridge for the recommended scheme.The design of the bridge span is 12M, with T shaped cross section, bridge deck width of 6m, divided into2 lanes.In the design process, through the ultimate bearing capacity load combination to calculate longitudinal steel bar, curved steel, and according to the standard layout of stirrups, the bending of reinforced position checking, checking the crack width, beam deformation checking, by referring to the standard that checking to meet the specification. In order to improve the design efficiency and accuracy, is adopted in the design of Midas software for calculation, and make full use of the CAD, WORD and other office software to organize the design document.
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