Application Of The Method Of Response Surface FEM Apply In Girder Transfer Story

Transfer beam as an important member of the transfer story structure, was subdivided into two sorts: wall-supporting members and column-supporting members. As to the former style, the existing of the shear wall above results in eccentric tensile force. The design method is different with the ordinary beam. There is less studies on the reliability of transform beam designed as eccentric tensile force.A practical reliability algorithm is put forward, i.e. the method of response surface FEM based on ANSYS. It is a FEM numerical simulation method when the function of structure cannot express in explicit performance. The method receives rather accurate index and efficiency.Research on reliability of transfer beams shows that it meets the need of reliability index. The ratio of dead load and live load, the variation coefficient of the strength and areas of steel bars has great effect on the reliability index. On the other hand, the size of section has less effect on the reliability index. It has less effect when the shear wall has a hole in the middle. In addition, it cannot meet the need of reliability index when there is a hole in the margin of the shear wall.