box type long span continuous prestressed composite type structure

摘要

the design is a box type long span continuous prestressed composite type structure of the roll up side by side, with two strong objection to the plan and the shape of a cover casing by the concrete and the steel type and on the abdomen. the abdomen is complex, to... the value of the cement and the supply of food.;the design of the existing conventional prestressed composite type is single, only to stop the use of the bridge, and different prestressed composite box shaped cross section, the brother of long span bridge, in use.