Title: Experimental Study on Strengthening Method of Bridges and Culverts under 30 t Axle Load in Shuo-huang Railway
Abstract:Based on the investigation of the current operational state of bridges and culverts along the ShuoHuang Railway,an analysis was performed on the ratio of the actual and designed live load effects on t...Based on the investigation of the current operational state of bridges and culverts along the ShuoHuang Railway,an analysis was performed on the ratio of the actual and designed live load effects on the bridges under the actual 30 taxle load of the freight train.The precept of the strengthening and the reconstruction of the bridges loaded under the heavy axle load was proposed.Based on a comprehensive test and the characteristics of the structures of the bridges and culverts,the effect of the 30 taxle load of the freight on bridges and culverts of various spans was studied.The main technical problems faced by bridge and culvert structures under the heavy haul transportation condition were analyzed in terms of reinforced concrete simply-supported girder,prestressed concrete girder with normal height,prestressed concrete shallow girder,bridge bearing,reinforced concrete culvert,framed bridge,and footing of abutment and pier.The challenge of the heavy axle load to the current bridges and culverts at service required strengthening with the prestressed carbon fiber reinforcement technology,the auxiliary girder technology,small span bridges reinforcement technology and a new type of bearing for overload.These strengthening technologies,which were applied in Shuo-Huang Railway,proved to be effective,thereby improving the capacity of the bridges and the culverts to satisfy the operation requirement of the freight with the 30 taxle load.Read More
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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Cited By Count: 2
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