Studies On Numerical Analysis And Parametric Selection Of Steel Pipe Supports In Alumina Plant

Pipe support is the most widely used special structure and plays an important role in lots of industry all over the world. In this paper, the theory analysis of restrain coefficient for multi-layer sliding support, numerical analysis and the optimizing design for multi-layer steel pipe support in the alumina plant are performed.In this paper, first, two-dimensional structures of bar system mechanical models were established for sliding support and anchor of pipe supports. The deadweight of support, deadweight of pipes, medium weight, layer of heat preservation weight, horizontal force on support caused by temperature variation of pipes and horizontal force on support caused by wind load on pipes are considered. Boundary condition is fixed constraint in areas contact with side beams about support that is vertical with pipe, and boundary condition is hinged constraint in areas contact with side beams about support that is parallel with pipe. According to the quality of pipe support, quantitative analysis of restrain coefficient for multi-layer sliding support, the most disadvantage load combination and the optimizing design of multi-layer pipe support are performed. The models were examined in every working state and checked the capacity. It obtains the restrain coefficient and the curve of bottom column height- steel consumption for multi-layer sliding support. It obtains suitable selection of members' shape, the best bottom column height and optimum steel consumption for multi-layer steel pipe support in alumina plant.In this paper, three-dimensional structures of beam mechanical models was established for anchor. The solid element are used in meshing. The deadweight of beam, deadweight of pipes, medium weight, layer of heat preservation weight, horizontal force on beam caused by temperature variation of pipes are considered. Boundary condition is fixed constraint in areas contact with endside of beam and hinged constraint in areas contact with middleside of beam . Finite element analysis of the beam was performed. The model was computed and the capacity were checked.In this paper, result in accordance with engineering experience has been acquired by numerical method analysis of multi-layer steel pipe support structure. The suitable...