摘要
成都河畔新世界酒店为不对称双塔楼高位连体结构,双塔体型相差大,其中塔一平面为狭长的L形,塔二平面为平行四边形。塔一、塔二分别采用框架-剪力墙结构和剪力墙结构,两座塔楼在高位由钢桁架强连接组成整体结构,通过比较各种强弱连接的方式,论证了强连接的合理性。在进行单塔结构分析时,一方面需保证了单塔结构能独立安全工作,另一方面也要尽量调整两座塔楼的动力特性接近,以减少通过连接的相互传力作用。对重要的钢桁架与塔楼的连接节点进行精细的有限元计算分析,保证了强节点弱构件;进行超长结构的温度应力分析,据此配置了相应的温度加强钢筋;对结构进行动力弹塑性分析,定性地找出了结构的薄弱部位,并提出相应的加强措施;最后进行了振动台试验,验证了结构的抗震性能,并根据试验结果给出了施工图设计指导建议。
Chengdu Riverside New World hotel is asymmetry double towers with top position connections. The shapes of these two towers are different. The plan of tower one is a long and narrow L shape. The plan of tower two is parallelogram.Tower one is frame-shear wall structure and tower two is shear wall structure. The two towers are strongly-connected as a whole structure by top position connector of steel truss. By comparison of all kinds of strong and weak connection methods,strong connection method was proved reasonable for the whole structure. In single tower structural analysis,on the one hand it should guarantee that each tower can work independently safely,and on the other hand each tower should be adjusted to similar dynamic performance in order to weaken the interactions of two towers. For important joints of steel truss and towers,the fine finite element analyses were carried out and the strengthening measures were put forward to ensure the strong joint and weak member. The temperature stress analysis on super-long structure was carried out and corresponding temperature reinforcing steel bars were arranged accordingly. The structural dynamic elasto-plastic analysis was conducted to find out the weak parts of the structure qualitatively,and corresponding strengthening measures were put forward. In order to prove the seismic performance of the structure,shaking table test was conducted. And some optimized suggestions were given to provide guidance for construction drawing design according to test results.
作者
吴国勤
傅学怡
何立才
李建伟
张明
Wu Guoqin Fu Xueyi He Licai Li Jianwei Zhang Ming(CCDI GROUP, Shenzhen 518048, China)
出处
《建筑结构》
CSCD
北大核心
2017年第3期40-46,83,共8页
Building Structure
关键词
不对称双塔楼
钢桁架强连拉高位连体
超长结构温度应力
有限元分析
动力弹塑性分析
振动台试验
asymmetry double towers
strongly-connected top position connector of steel truss
temperature stress analysis of super-long structure
finite element analysis
dynamic elasto-plastic analysis
shaking table test
