Research on the Application of Key and Difficult Construction Technology for Bridge High-altitude Double-limb Thin-walled Pier
Hydraulic self-climbing formwork construction technology has been widely used in many rectangular high pier bridge construction projects,which has formed standardized operations.However,in the construction of double-limb pier with transverse binder,process adjustment is needed,which is difficult to construct and has high safety risk.Therefore,the construction of high-altitude transverse binder has become a key and difficult point in the construction of bridge substructure.This paper compares and analyzes two conventional construction technologies of high-altitude transverse binder,that is,the simultaneous pouring of high-altitude transverse binder and double-limb pier section,and the asynchronous construction technology of double-limb pier body and transverse binder.Based on a river-crossing bridge on a mountainous expressway in Henan Province,this paper comprehensively analyzes the application of key construction technology of high-altitude double-limb thin-walled pier transverse binder,so as to adjust relevant important technical parameters in time,and optimize and innovate the relevant technology.
NETL
NSTL
万方数据
维普
