Application of Forward Iteration Method in Arch Beam Composite Structure Bridge
To quickly and accurately obtain the construction cable force of arch beam composite structure bridge,taking Donghua Bridge in Luquan County,Kunming,Yunnan Province as the research background,the Bridge Doctor V4.3 finite element software was used to obtain the construction cable force corresponding to the reasonable completed bridge state through the forward iteration method,which was used for the field construction control.Finally,the measured completed bridge cable force was compared with the theoretical completed bridge cable force.Practice has proved that the forward iteration method has the advantages of simple operation and fast convergence speed.The construction cable force obtained is used for construction tensioning,and the actual completed bridge cable force obtained is in good agreement with the theoretical completed bridge cable force,reaching the preset internal force state of the completed bridge,so as to avoid the repeated cable adjustment process in the later stage,which can effectively optimize the construction process,shorten the construction period and save construction investment.
composite structure bridgeconstruction cable forcefinite element analysisformal iterationconstruction control
NETL
NSTL
万方数据
维普
