Application of Light Bridge Deck Crane to Demolish the Upper Structure of Continuous Rigid Frame Construction Technology
Taking the old Malan Bridge as the engineering background,a new method of using a mobile bridge deck crane for the lifting of box beams during the demolition construction of old bridges was proposed.After the demolition construction process and process of the T-structure and main bridge were determined,the theoretical stress values of the bridge piers during the T-structure demolition process were measured through numerical calculations.The theoretical values were compared with on-site monitoring measurements.Finally,through theoretical stress analysis and detailed comparison of actual bridge stress monitoring data,it was verified that the main bridge demolition technology proposed in this research is consistent with the ideal design situation,and the obtained construction technology scheme has good feasibility and effectiveness.
T-shaped steel structurebridge demolitionnumerical modelstress monitoringconstruction process
NETL
NSTL
万方数据
