摘要
西流湖公园生态中心位于郑州市,根据建筑要求,在建筑物东南位置设置大悬挑,悬挑最大位置长度达18.40m。根据方案对比,选择钢桁架作为结构实施方案。针对大悬挑结构本身的受力特点,对其各种设计难点进行攻关,对重要结构构件进行性能设计,对关键节点进行有限元分析。本工程大悬挑结构自振周期长,因此进行了舒适度分析。针对大悬挑结构自由度高,安全冗余度低的特点,对其进行了防连续倒塌分析。根据分析结果,本工程大悬挑结构满足规范要求,可达到抗震设防三水准设计要求,受力合理,可为其他类似工程提供参考。
The ecological center of Xiliu Lake Park is located in Zhengzhou,According to architectural requirements,a large cantilever is set in the southeast of the building,the maximum length of the cantilever is 18.40m.According to the scheme comparison,the steel truss is selected as the structural implementation scheme.According to the stress characteristics of the large cantilever structure,tackle various design difficulties,performance design is practiced on important structural members,the key nodes are analyzed by finite element method.The natural vibration period of the large cantilever structure is long,therefore,the comfort analysis is practiced.In order to avoid high degree of freedom and low safety redundancy of large cantilever structure.The analysis of preventing continuous collapse is practiced.According to the analysis results,the large cantilever structure of the project meets the specification requirements,it can meet the three-level design requirements of seismic fortification,mechanical behavior is reasonable,it can provide reference for other similar projects.
作者
高晗
GAO Han(Beijing Institution of Architectural Design Co.,Ltd.,Beijing 100045,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S01期1145-1149,共5页
Building Structure
关键词
大悬挑
钢桁架
性能化设计
舒适度分析
防连续倒塌
cantilever structure
steel truss
performance based design
comfort analysis
prevent continuous collapse
作者简介
第一作者:高晗,一级注册结构师,Email:1119080279@qq.com。
