Calculation of the Overturning Resistance of the Temporary Consolidation Combination System of Continuous Girder Bridge with Cantilever Construction
The pier-beam temporary consolidation system is the main load-bearing element in construction of the continuous girder with cantilever,this paper analyzes the load-bearing mechanism of this type of pier-beam temporary consolidation combination system,and proposes the corresponding reaction force calculation formula for each component,and ANSYS finite element software is used to build a scaled-down calculation model to verify the correctness of the equations.On the basis of this,the pier-beam temporary consolidation combination system of the bridge on Xixin Road in Xinjin County,Chengdu City is tested,the results show that the pier-beam temporary consolidation combination system is safe and reliable;The effect of the variation of the parameters of the components on the load carrying capacity of this type of combined system of the pier-beam temporary consolidation combination system is investigated,the results show that the changes in the parameters of each component have a significant effect on the load bearing state of this type of the pier-beam temporary consolidation combination system,the effect of changes in the type of external steel support is the greatest,the effect of the changes in the concrete grade of the temporary support and the height of the temporary support is the second greatest,the effect of the changes in the height of the external steel support is the least.
bridgescontinuous girder bridgescantilevertemporary consolidationanti-overturningfinite element analysis
NETL
NSTL
万方数据
维普
