The arch of an arch bridge structure is mainly a compression member with curved linier parabolic ... more The arch of an arch bridge structure is mainly a compression member with curved linier parabolic shape. A great part of the uniform and moving loads is carried by compression forces that are transmitted to the arch abutment as a large thrust force. Compression forces prevent and reduce concrete tensioning due to traffic passage on the bridge. Existing old arch bridges still resist the increasing vehicle loads due to reserve capacity of the compression member. Arch bridges reduce 15% concrete volume compared to straight girder bridges, so they are economical in dimension and reinforcement. Arch bridges are classified into two types according to the thrust force transmission. The rigid arch type is optimal for very good soil conditions as the thrust force is directly transmitted to very good foundation soil. The stiffened arch type is suitable for deep foundation condition as the thrust force is carried by the structural tie beam. The monolithic system between super and sub structures with the number of plastic hinges improve the earthquake resistance. The construction of
The arch of an arch bridge structure is mainly a compression member with curved linier parabolic ... more The arch of an arch bridge structure is mainly a compression member with curved linier parabolic shape. A great part of the uniform and moving loads is carried by compression forces that are transmitted to the arch abutment as a large thrust force. Compression forces prevent and reduce concrete tensioning due to traffic passage on the bridge. Existing old arch bridges still resist the increasing vehicle loads due to reserve capacity of the compression member. Arch bridges reduce 15% concrete volume compared to straight girder bridges, so they are economical in dimension and reinforcement. Arch bridges are classified into two types according to the thrust force transmission. The rigid arch type is optimal for very good soil conditions as the thrust force is directly transmitted to very good foundation soil. The stiffened arch type is suitable for deep foundation condition as the thrust force is carried by the structural tie beam. The monolithic system between super and sub structures with the number of plastic hinges improve the earthquake resistance. The construction of
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