Aiming at the existing situation that it is high difficulty of using cradle casting construction of continue box beam bridge,it introduces the laying out methods of deform detection point and pressure detection point in the construction of the project,and analyses the detection effect.

RC frame model with consideration for beam-column joints deformation;

This paper analyzes some issues occurred in dam deformation monitoring,including wet environment,facilities disturbed by external condition,refraction influence,mark deformation,few datum value obtained before impounded.

The load - bearing behavior, deformation, construction and economic reasonableness of the structure, as well as the mechanical performance, deformation characteristic, durability and cost of steel structure and aluminum alloy structure, are discussed through detailed design calculation under normal working condition .