Some factors such as bridge site, main span beam structure, investment and construction period make conventional steel girder erection schemes (such as launching method and single-end large cantilevered assembling construction method) impossible, so new erection schemes must be taken into consideration.

Based on concrete engineering practice,the fitting construction order,fitting method and control of 50 m precast T-beam were discussed in detail,and the credible erection scheme was provided.

This article makes an exploration of urban flyover and elevated design schemes which emphatically explains how to carry out the design of the type of pier columns and that of continuous box girder sections when the bridge landscape is under the condition of being restricted,which provides reference to the bridge scheme design in the future.

Combined with the features of arch bridge,it makes a research of bridge supporting frame setting plan,discusses the force on arch section,vertical force calculation of each arch section to the supporting frame,the thrust face calculation at supporting pier and supporting frame calculation,and gets the rational horizontal and vertical supporting wood size.

The high pier column scaffold construction coping hanger program;