Numerical Simulation And Computer Method Research On Shearing-resistant Bearing Capacity Of The Oblique Section Of Steel Reinforced Light Aggregate Concrete Beam

On the basis of experimental research on the shearing-resistantbearing capacity of steel reinforced light aggregate concrete beam, thistext carries numerical simulation and induce the theory calculationformula. First of all, try to set up the separating finite element model, usingthe software ANSYS. Different element types are used in the model ,atthe same time we neglect the cohesiveness and slippery performancebetween different materials. Steel and longitudinal reinforcements aremodeled using 2-nodes link element. Concrete is modeled using 8-nodesSolid element with the performance of crack and crush.Steel-reinforcement is modeled using 4-nodes Shell element with largedeformation. Carry non-linear finite element analysis on bearing capacityand other performances of sample. Draw out the load-displacement curve.Then compare the result of calculation of finite element with theexperimental result. If they are identical, that means the feasibility of thisfinite element simplified model. Then we can use truss-join theory andsuperpose intensity theory to induce the calculation formula ofshearing-resistant bearing capacity of sample oblique section. Thismethod has a very clear mechanics models, the theory is relatively strong,the precision of calculation is relatively very high. Finally, compare theinduced theoretical formula, superpose law, shearing-resistant bearingcapacity which is got by finite element calculation with experimentalresults, to rectify the theoretical formula.