1~50 m Single Box Double Chamber Steel Box Girder Bridge Support Construction and Force Checking Calculation
Based on the construction background of 1 to 50 m single-box double-chamber steel box girder bridge,the finite element model of steel box girder support is established by using finite element analysis software midas,and the strength,stiffness and stability of the support structure are checked,as well as the bearing capacity of the support foundation.The main research contents are as fol-lows:(1)Material and load analysis of the support;(2)Support stress analysis includes shear stress and bending stress of each struc-ture of support;(3)Support foundation bearing capacity checking calculation,including base reaction force calculation,foundation punching checking calculation.The results show that the maximum shear stress of the structure is 0.48 MPa,the maximum bending stress is 5.14 MPa,and the maximum displacement is 1.5 mm,all of which meet the requirements of the support material and struc-ture,and the stability also meets the requirements.Support should be processed and installed in accordance with relevant specifications to ensure the safety of the support structure.