Spring unit modeling method of SRC component finite element model based on Excel

Abstract

The invention discloses a spring unit modeling method of an SRC component finite element model based on Excel. The spring unit modeling method comprises the steps: establishing a finite element modelof an SRC component, and storing an inp file; copying profile steel node information in the inp file to the first column of Sheet1 and dividing the profile steel node information into four columns; copying the concrete node information to the fifth column and dividing the concrete node information into four columns; copying the first column of profile steel node numbers to the tenth column, searching concrete node numbers with the same coordinates as the profile steel nodes in the 2nd, 3rd and 4th columns of the first row from the concrete nodes, and obtaining profile steel and concrete node numbers with the same coordinates in the 10th and 11th column of each row; obtaining section steel and concrete joint numbers required by the spring units; obtaining a spring unit required by the inp file in the twelfth column; and copying the twelfth column of spring units to a required position in the inp file, and adding attributes of the spring units in front of the first spring unit. Accordingto the spring unit modeling method, the addition of the spring unit can be efficiently and accurately completed, so that the spring unit modeling method is used for finite element simulation analysisof the SRC component or structure considering the bonding slip performance.

Description

technical field [0001] The invention belongs to the field of building and civil engineering simulation analysis, and in particular relates to a spring element modeling method based on an Excel-based SRC component finite element model. Background technique [0002] Steel reinforced concrete (SRC) is widely used in high-rise building structures at home and abroad due to its advantages of high strength, high rigidity and good seismic performance. The bonding effect of the two materials in the SRC component determines the cooperative performance of steel and concrete. Studies have shown that the bond strength between steel and concrete is less than 50% of the bond strength between light round steel bars and concrete. The weaker bond The bond strength makes the two materials prone to slip at the interface, and the slip will reduce the ability of the two to work together, and directly have a serious impact on the strength, stiffness and applicability of the component. Therefore, t...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems of extremely difficult operation and extremely low work efficiency when using finite element simulation to analyze the bond-slip performance of SRC components in the above-mentioned prior art, the purpose of the present invention is to propose a finite element method for SRC components based on Excel Spring element modeling method for the model

Images