Research On The Load Transverse Distribution Of Simply Supported T-shaped Girder Bridge With Damage

Simply supported T-shaped girder bridge has many advantages,such as clear force,simple structure,convenient installation and prefabrication.so it is widely used in our country.But this kind of bridge during service often appears transverse connection damage because of excessive use,resulting in the lateral link stiffness of structure decreased,thereby affecting the load transverse distribution of structure.Therefore,a simple research on load transverse distribution of nondestructive bridge is not enough,the load transverse distribution of bridges with damage should also be researched.So this paper did the following researches,and draw the corresponding conclusions.1.A simply supported T beam bridge was simulated by using the finite element analysis software ANSYS,obtained the finite element numerical solution of the load transverse distribution of this bridge,and compared it with the theoretical solution.The results show that the model built in this paper can be used to analysis the load transverse distribution of simply supported T-shaped girder bridge.2.In order to research the transverse connection damage effect on the load transverse distribution of simply supported T-shaped girder bridge,according to the different damage locations and forms,divided into various conditions to established the finite element model,calculated the numerical load transverse distribution of every girder under each condition,analyzed and compared with numerical without damage.The results show that transverse connection damage will weak the effect of load transverse distribution of simply supported T-shaped girder bridge,and even cause load transverse redistribution of simply supported T-shaped girder bridge.3.With the aid of finite element software ANSYS,analyzed the influence of overload on the load transverse distribution of simply supported T-shaped girder bridge under the condition of without damage and damage.The results show that: no matter simply supported T beam bridge whether has transverse connection damage,the overload will have an adverse effect on the load transverse distribution,but only under damage condition,the adverse effects will be enlarged.