Safety Evaluation And Optimization Design Of Steel Frame Structures For Denitrification

Based upon the practical denitrification engineering of Yueqing power plant in Zhejiang province, the safety evaluation and optimization design of steel frame structures for selective catalytic reduction (SCR) denitrification in the secondary-stage engineering of Yueqing power plant are investigated under various load combinations in this paper.Firstly, the structural styles and characteristics, basic design loads and load combination cases are introduced in detail. Using the special design software STAADPro for steel structures, the most unfavorable load combination cases are determined. Then, the axial forces and bending moments of structural members, and support reactions under eight varieties of basic design loads obtained from STAADPro and ANSYS softwares are compared, and the existing differences between the calculated results are analyzed. Finally, the cross-section sizes of main structural components are further optimized using STAADPro software, and the optimized steel frame structures are analyzed under various load combination cases, the carrying-load capacity and stability of global structure and important components are verified. The main studying contents in ths paper may be summarized as follows:(1) Verifications of the forces, bending moments and support reactions of steel frame structures for denitrification under basic load cases.(2) Verifications of stress and stability of steel frame structures for denitrification under load combination cases.(3) Safety evaluation and optimization design of steel frame structures for denitrification.In summary, the significances and further studying works in the future for steel frame structures are briefly outlined.