Multi-dimensional Analysis of Construction Technology of Steel Tube Concrete Stiff Skeleton Arch Bridge
Arch ring concrete pouring process is the most important part of the main arch ring construction,the first ring concrete pou-ring process is one of the most difficult operation,the highest risk,time-consuming process.In order to better solve the pouring prob-lems encountered in the construction of long-span bridges,a new construction technology of synchronous precast and hoisting with concrete floor is proposed based on Yutang Bridge.Based on the difficulties encountered in the field construction process,the improve-ment ideas of the new technology are given,which can solve the problems of steel bar binding and side formwork sealing in the air oper-ation.In view of the new construction process and its improvement ideas,the influence of new and old processes on construction safety and construction environment is analyzed and compared,and the construction period cost and economy of the new and old processes are further analyzed and compared.The results show that the new technology can save 30%of project cost and 25%of construction peri-od.While ensuring the safety of construction workers,the pollution problem of mixed water falling is solved.
NETL
NSTL
万方数据
