Design Practice of Long Span Asymmetrical Suspended Continuous Beam
The conventional continuous beam structure adopts symmetrical design,and the ratio of side to middle span is reasonable.When the bridge span arrangement is limited by terrain or other factors,the asymmetric design is an effective solution.The large span asymmetric continuous beam has the characteristics of unreasonable structural stress,difficulty in bundling,easy to empty the small side span end support,and high construction control requirements.In this paper,the main bridge across the South-to-North Water Diversion canal adopts(52.5+130+75)m asymmetric vari-able section suspension continuous beam as an example,through the establishment of model calculation and analysis,the most unfavorable stress state is studied,and the existing problems of this type of bridge are solved by adopting effective design methods and construction measures,which can provide reference for the design of similar Bridges.
asymmetricsmall side spansuspension cast continuous beamcantilever constructioncounter-weight concrete
万方数据
维普
