Construction Technology of Traffic Bridge T-beams Erection at the Downstream of Le'an Hydropower Project
In order to meet the construction needs during the construction of Le'an Hydropower Project,a traffic bridge was built according to the design plan.The bridge design adopts 3 m×30 m prestressed concrete T-beam structure.Due to the special geographical environment of the bridge,which spans the Yalong River and S217 provincial Road at the same time,the site operation space was limited,and the construction safety risks were high.Through the comparison and selection of multiple schemes,the T-beam erection scheme was finally adopted by combining the automobile hanger beam with the fishing rod method.At the same time,the key construction technologies such as the selection of automobile crane,the design and erection of the lifting rod were analyzed,and the beam erection task was completed on time under the premise of safety and efficiency.
Prefabricated T-beamAutomobile hanger beamLe'an Hydropower ProjectFishing rod method
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