Study And Analysis On Redistribution Of Internal Force During Bridge Construction

During bridges construction, along with method of bridges construction more complex then ever and bridges structure system diversification, lots of factors will induce redistribution of internal force of bridge, such as construction load, temperature, creep and shrinkage of concrete, bearing, incidental load, artificial load, and so on. Redistribution of internal force and deformation of structure will bring lots of disadvantage factors to structure construction during structure construction. This paper expatiates the principle and process of finite element method, analyses factors of redistribution of internal force during structure construction detailedly, clarifies mechanism of redistribution of internal force, indicates-phenomena of redistribution of internal force of structure disadvantage factors. At the same time this paper offers a computing method that based on finite element method of plane beam structure and factors that induce redistribution of internal force and deformation of structure. This paper has some significance that cognition and avoiding of redistribution of internal force during factual engineering project.