Steel Box Girder Hoisting and Top Pushing Construction Technology
Steel box girder is a type of bridge superstructure that is widely used due to its lightweight,reliable strength,flexible form,and fast installation speed.At present,steel box girders in highway engineering are mainly used for crossing existing highways and railways on highways.The construction of steel box girders is generally carried out by the manufacturer through segmented prefabrication and transported to the construction site for installation.The installation methods mainly include external lifting and top pushing.This paper compares the lifting and top pushing construction techniques and processes of steel box girders based on engineering examples,analyzes the advantages and disadvantages of top pushing and lifting techniques under different working conditions,and points for attention.
国家科技期刊平台
NSTL
万方数据
维普
