某超限高层框架-核心筒结构优化设计  

A Super High-rise Frame-core Wall Structure Optimization Design Example

作　　者：钟建敏[1] ZHONG Jianmin(Suzhou Nine Urban Architectural Design Co. ,Ltd. ,Suzhou 215123, China)

机构地区：[1]苏州九城都市建筑设计有限公司,苏州215123

出　　处：《结构工程师》2018年第2期33-40,共8页Structural Engineers

摘　　要：以某超限高层框架-核心筒结构为例,以结构刚度、重量、造价等为控制目标并满足结构规范和超限审查要求,对原结构设计的计算参数、结构荷载、柱、墙、梁、板、屋顶钢结构支架和筏板基础进行全方位优化。采用PKPM软件分别对原设计和优化后的结构重量、刚度、抗震性能、造价等进行了分析与比较,结果表明通过建筑结构优化后,各项指标均满足规范要求,结构自重减轻,地震作用降低,刚度分配更趋合理,结构延性增加,结构安全度相应提高。同时也取得了增大室内使用空间、缩短施工工期和节约建设成本2 294.68万元的效益。Taken a super high-rise frame-core wall structure as an example, comprehensive optimization of the original structural design calculation parameters, structural loads, walls, columns, beams, plates, roof steel structure brackets and raft foundation was conducted,where the structural stiffness,weight and cost were set as control objectives, while meeting the structural specifications and transfinite review requirements. Comparison of the stiffness, seismic pefformance and cost between the original design and the optimized one was conductedby PKPM soflware. The results show that all the indicators meet the specification requirements, and benefits such as reduced structural weight, reduced earthquake action, more reasonable stiffness distribution, increased ductility and structural safety,increased indoor space, shortened construction period and reduced construction cost of 22 million 946 thousand and 800 yuan profit.

关 键 词：超限高层结构 框架-核心筒 优化设计 造价分析 

分 类 号：TU973.1[建筑科学—结构工程]