【作者】 焦柯； 贾苏； 梁施铭；

【Author】 Jiao Ke;Jia Su;Liang Shiming;Architectural Design and Research Institute of Guangdong Province;

【机构】 广东省建筑设计研究院；

【摘要】 由于存在计算规模大、约束条件复杂、优化变量不连续、缺少专业优化软件等困难,在高层混凝土结构设计中通过软件进行优化分析的项目还比较少。响应面算法由于其对多变量、多约束条件的优化问题收敛性较好,适合在建筑结构优化计算中应用。对响应面算法引入建筑结构优化分析中存在的问题进行研究,解决了响应面在处理复杂约束条件、多峰值以及起始点不在可行域内等技术问题,并基于此研发了高层混凝土结构优化设计软件GSOPT。该软件能够方便地对混凝土结构进行整体分析及优化,自动完成构件截面调整,并方便得到优化变量对优化目标的敏感度。以层间位移角为优化目标对某8度区超限高层框筒结构进行优化设计分析,X、Y向结构最大层间位移角分别增大14.0%和11.4%,经验证优化后结构满足结构抗震性能要求。应用GSOPT软件可大大减少工程师调整计算模型的工作量,辅助工程师高效、可靠地完成复杂结构的优化设计。更多还原

【Abstract】 The difficulties that large-scale computing,relationship of restrictions may be complicated,variables are discontinuous and the lack of professional software have hindered the application of general analysis software in the optimization design of high-rise structure.Because of its features like good convergence property to multiple variables and constraints problem,respond-surface algorithm is fit for optimization design of concrete structure among various algorithms.In this article,difficulties caused by complicated restricts,multi-peaks and iteration in infeasible area are discussed.And GSOPT is developed for high-rise concrete structure optimization design based on the theory and methods in the process.It’s very convenient to use the software for the analysis and optimization design of concrete structures.And the sensitivity analysis can be achieved and the components’ sections can be modified automatically.A drift optimization of a super highrise frame-tube structure in 8 degree area is accomplished.The results showed that drifts of X and Y directions are increased by 14.0%and 11.4%respectively.And the seismic performance of the optimized structure can meet the performance requirement.The application of GSOPT can greatly reduce the workload of engineers in structure design and calculation,and assist the engineer to accomplish the optimization design of complex structures in an efficient and reliable way.更多还原