成都中海天府新区超高层项目结构设计  

Structural design of super high⁃rise project in Chengdu Zhonghai Tianfu New District

作　　者：吴小宾[1] 彭志桢[1] 刘宜丰[1] 陈强[1] 谢俊乔 张庆林 秦攀 涂雨 WU Xiaobin;PENG Zhizhen;LIU Yifeng;CHEN Qiang;XIE Junqiao;ZHANG Qinglin;QIN Pan;TU Yu(China Southwest Architectural Design and Research Institute Co.,Ltd.,Chengdu 610042,China;China Overseas Development Group Co.,Ltd.,Shenzhen 518046,China)

机构地区：[1]中国建筑西南设计研究院有限公司,成都610042 [2]中海企业发展集团有限公司,深圳518046

出　　处：《建筑结构》2024年第21期1-10,共10页Building Structure

摘　　要：成都中海天府新区超高层项目建筑高度488.9m,为西南地区已建和在建的最高建筑物。塔楼采用巨柱框架⁃伸臂桁架⁃核心筒结构体系,具有8个环带桁架层和2个伸臂层,无外围巨型斜撑,次框架柱不连续的特点。介绍塔楼结构设计策略,包括结构整体性能参数、抗震性能目标和关键构件的性能水准的设定。阐述基础、环带桁架、伸臂桁架、巨型钢管混凝土柱、角部大悬挑、塔冠的结构布置及设计;进行了次框架结构的防连续倒塌分析以及加强层楼板、水平支撑、斜柱、斜墙等关键构件的计算分析;给出了与巨柱、伸臂相连的关键节点的构造措施以及结构长期荷载效应下的施工模拟结果和处理措施等。结果表明,结构体系及布置合理安全,各构件能够满足预定的性能目标。The building height of super high⁃rise project in Chengdu Zhonghai Tianfu New District is 488.9 meters,which is the tallest building built or under construction in the Southwest of China.The tower building adopts giant column frame⁃outrigger truss⁃core tube structure system,which has the characteristics of 8 ring trusses and 2 outrigger floors,no external giant diagonal braces and the columns of secondary frame is discontinuous.The design strategy of tower structure was introduced,including the setting of overall performance parameters,seismic performance objectives and performance levels of key components.The structural layout and design of foundation,ring truss,outrigger truss,giant concrete⁃filled steel tube column,large cantilevered corner and tower crown were described.The anti⁃continuous collapse analysis of sub frame structure and the calculation and analysis of key components such as reinforced floor,horizontal brace,inclined column and inclined wall were carried out.The construction measures of key joints connected with giant columns and outriggers,as well as the construction simulation results and treatment measures under the long⁃term load effect of the structure were given.The results show that the structural system and arrangement are reasonable and safe,and each component can meet the predetermined performance targets.

关 键 词：超高层结构 巨柱框架 次框架 环带桁架 伸臂桁架 大悬挑 

分 类 号：TU318.2[建筑科学—结构工程]