论文部分内容阅读
五角场镇340街坊商业办公用房2A座结构高度45.6m,采用钢筋混凝土框架-核心筒结构体系,3层以上结构构件应用再生混凝土材料,为国内首个采用再生混凝土的高层建筑。结合工程项目背景,介绍工程结构设计中的关键技术问题,包括再生混凝土材料分项系数及其弹性模量取值、再生混凝土强度设计值的确定和构件设计方法、结构设计与分析方法、抗震构造措施,并对再生混凝土的施工验收提出了具体的要求。采用YJK及MIDAS Building两种软件对结构进行了整体计算分析,分析结果表明,两个软件在多遇地震作用下各项指标趋于一致,均满足规范要求。采用SAP2000软件补充了结构在罕遇地震作用下的静力弹塑性分析,分析结果表明结构性能满足预设的抗震性能目标。
Wujiaochang 340 neighborhood Commercial Block 2A residential structure height 45.6m, the use of reinforced concrete frame - the core tube structure system, more than three layers of structural components using recycled concrete materials for the first use of recycled concrete high-rise buildings. Based on the background of the project, the key technical problems in the structural design of the project are introduced, including the calculation of the sub-coefficient of recycled concrete material and its modulus of elasticity, the determination of the design value of strength of recycled concrete, component design, structural design and analysis, seismic structure Measures, and put forward specific requirements for the construction acceptance of recycled concrete. The structure of the two softwares YJK and MIDAS Building are calculated and analyzed. The analysis results show that the two softwares tend to accord with each other under the action of frequent earthquakes and meet the requirements of the code. The SAP2000 software is used to supplement the static elasto-plastic analysis of the structure subjected to rare earthquakes. The results show that the structural performance meets the pre-set seismic performance goal.