Stability Analysis of a Simple-Supported Bridge with Steel Truss Structure Based on Abaqus Software

Abstract

With the continuous development and improvement of modern bridge construction technology, the bridge based on steel structure materials has gradually become the mainstream. It is not difficult to find that steel structure has good comprehensive performance and significant advantages compared with other materials, so it can be widely used. In order to explore the stability of steel structure in different states, this paper selected steel truss bridge as the research object. At the same time, the structure of simply supported bridge is selected as the main analysis structure, by using Abaqus modeling software to establish a finite element model and to analyze the overall stability under the most unfavorable load. The analysis and integration of the finite element simulation results show that the stress of the truss under the most adverse load is concentrated in the upper chord. According to the horizontal displacement nebulae, the horizontal displacement of the lower chord is the most serious, and the node is also affected. This experiment can provide a certain reference for the actual design and construction of simply supported bridge with steel structure as the main, and can make a certain deal with the load situation mentioned in this paper.