杭州国际中心超高层结构抗风设计

引用文献:

寿东 王家豪 曾菁 王向锋 杜刚 庄楚龙. 杭州国际中心超高层结构抗风设计[J]. 建筑结构,2023,48(13):110-114.

SHOU Dong WANG Jiahao ZENG Jing WANG Xiangfeng DU Gang ZHUANG Chulong. Wind resistance design of super high-rise structure of Hangzhou International Center[J]. Building Structure,2023,48(13):110-114.

作者:寿东 王家豪 曾菁 王向锋 杜刚 庄楚龙
单位:杭州鲁能城置地有限公司 上海江欢成建筑设计有限公司
摘要:杭州国际中心项目包括两栋超高层塔楼(主塔、副塔)及相连裙房,两栋塔楼采用钢筋混凝土核心筒-钢梁-钢管混凝土柱结构体系。塔楼平面为短边凹入的近矩形,立面为竹节造型,结构侧向刚度较柔、横风向响应较大。通过风洞试验,研究了各风向角下有周边建筑、最不利风向角下无周边建筑工况下的风荷载。结构风振舒适度分析采用根据当地风气候分析所得的折减后10年重现期风速值,并补充验算了1年重现期风振舒适度。针对风致加速度响应较大的副塔进行了敏感性分析,对结构构件进行了适当的加大。结果表明:风洞试验结果大部分略大于规范风荷载,但是二者相差不大,风荷载沿竖向分布较均匀,未由于体型特殊而产生不合理的较大风致响应。两栋塔楼风振加速度均能满足正常使用要求。
关键词:杭州国际中心;超高层建筑;混合结构;风洞试验;抗风设计;风振舒适度;
作者简介:寿东,学士,高级工程师,主要从事地产设计管理,Email:13305813397@163.com。
基金:
尊敬的用户,本篇文章需要2元,点击支付交费后阅读
参考文献[1] SOM建筑设计公司.鲁能集团杭州国际中心超限高层抗震设防专项审查初步报告[R].芝加哥:SOM建筑设计公司,2018.
[2] SOM建筑设计公司.鲁能集团杭州国际中心项目方案文本[R].芝加哥:SOM建筑设计公司,2017.
[3] 高层建筑混凝土结构技术规程:JGJ 3—2010[S].北京:中国建筑工业出版社,2011.
[4] 建筑结构荷载规范:GB 50009—2012[S].2016年版.北京:中国建筑工业出版社,2016.
[5] 浙江大学建筑工程学院.杭州国际中心风振响应及等效静力风荷载评估报告[R].杭州:浙江大学建筑工程学院.2018.
[6] 建筑工程风洞试验方法标准:JGJ/T 338—2014[S].北京:中国建筑工业出版社,2014.
[7] 黄铭枫,李强,涂志斌,等.基于Copula函数的杭州地区多风向极值风速估计[J].浙江大学学报(工学版),2018,52(5):828-835.
[8] 马晖,杜平,冯向华,等.深圳东海超高层连体公寓塔楼风振舒适度研究[J].建筑结构,2012,42(S1):424-428.
[9] Bases for design of structures-serviceability of buildings and walkways against vibrations:ISO 10137∶2007 [S].Switzerland:International Organization for Standardization (ISO),2007.
Wind resistance design of super high-rise structure of Hangzhou International Center
SHOU Dong WANG Jiahao ZENG Jing WANG Xiangfeng DU Gang ZHUANG Chulong
(Hangzhou Luneng City Real Estate Co., Ltd. Jiang's Architects & Engineers)
Abstract: Hangzhou International Center consists of 2 super high-rise towers and adjacent podium buildings. The two towers adopt a reinforced concrete core-steel beam-concrete-filled steel tube column structure system. The plane of the tower is nearly rectangular with a concave short edge and the facade is bamboo shaped. The lateral stiffness of the structure is soft and the response of the transverse wind is large. Through wind tunnel test, the wind loads under the conditions of surrounding buildings at each wind angle and no surrounding buildings at the most unfavorable wind angle were studied. The wind vibration comfort level of structure was analyzed by using the wind speed value of 10 years reduced in the return period based on the analysis of local wind climate, and the wind vibration comfort level of 1 year in the return period was supplemented by checking calculation. The sensitivity analysis of the secondary tower with large wind-induced acceleration response was carried out and the structural members were increased appropriately. The results show that most of the wind tunnel test results are slightly larger than the standard wind loads, but there is little difference between them. The wind loads are distributed evenly along the vertical, and no unreasonable large wind-induced response is generated due to the special body type. The wind induced vibration of 2 towers can satisfy structure serviceability.
Keywords: Hangzhou International Center; super high-rise building; composite structure; wind tunnel test; wind resistance design; wind induced vibration
481 0 0
文字:     A-     A+     默认 取消