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以天津北疆电厂二期工程侧煤仓结构为背景,研究利用防屈曲支撑对钢结构厂房进行消能减震结构优化分析。采用SAP 2000软件建模,通过与PKPM模型进行建模认证,验证了SAP 2000模型的正确性,并建议了防屈曲支撑消能减震方案。采用SAP 2000模型进行了静力弹塑性分析和动力非线性分析,对原结构方案和BRB消能减震方案的计算结果进行了研究对比。结果表明:BRB消能减震方案能够改善厂房结构地震作用下的扭转变形,使得多遇地震作用下结构两方向基底剪力分别减小28%和20%,明显降低了结构在高烈度地震后的损伤程度,证明已被工程采用的BRB消能减震方案相对于原结构方案更有优势。
Taking the structure of side coal bunker of the second phase of Tianjin Beijiang Power Plant as a background, the structural optimization analysis of energy dissipation and damping of the steel structure workshop by buckling brace is studied. The SAP 2000 software was used to model the model and the PK 2000 model was used to verify the correctness of the SAP 2000 model. The anti-buckling brace energy dissipation and damping scheme was also proposed. The static elastic-plastic analysis and dynamic nonlinear analysis are carried out by using the SAP 2000 model. The results of the original structure scheme and the BRB energy dissipation and damping scheme are compared and studied. The results show that the BRB energy dissipation and damping scheme can improve the torsional deformation under the earthquake of plant structure so that the base shear force in both directions will decrease by 28% and 20% Of the degree of damage proved that the project has been adopted BRB energy-saving damping program compared to the original structure of the program even more advantages.