华润温州老港区综合体主塔楼结构设计
引用文献：
徐麟 隋晓 宋策 李盛勇 胡渭雄. 华润温州老港区综合体主塔楼结构设计[J]. 建筑结构，2022，48（04）：22-30.
XU Lin SUI Xiao SONG Ce LI Shengyong HU Weixiong. Structural design of the main tower of China Resources Wenzhou Laogang district complex[J]. Building Structure，2022,48（04）：22-30.
摘要：华润温州老港区二期主塔楼为高300m的钢筋混凝土框架-核心筒结构，底部采用钢管混凝土叠合柱。项目位于临江高风压地区，高宽比接近7.5,抗风设计难度大。方案阶段通过风天平对比试验进行了外立面风荷载优化，减小了风荷载输入，使结构体系更加简洁高效。由于场地岩层较深，卵石层厚达70m,桩基设计中在当地较早采用了旋挖成孔和C50水下混凝土，改进了后注浆技术措施，通过多桩型试桩比选确定了最优桩基础方案，实现了经济性和承载力的合理平衡。因建筑方案存在单侧退台收进，故对塔楼的水平变形进行了研究，计算分析中考虑了竖向荷载、基础不均匀沉降和混凝土收缩徐变的影响。结果表明：对于超高层混凝土结构，收缩徐变是需要特别重视的技术环节，考虑基础沉降以后，配筋规律会发生变化。
关键词：风荷载体型优化，桩基础，钢管混凝土叠合柱，收缩徐变
基金：
尊敬的用户，本篇文章需要2元，点击支付交费后阅读
限时优惠福利：领取VIP会员
全年期刊、会议视频
全部免费！培训视频打折！
全年期刊、会议视频
全部免费！培训视频打折！
参考文献[1] 温州市老港区二期03-01-14&15地块超高层综合体项目高层建筑工程超限设计可行性论证报告[R].广州：广州容柏生建筑结构设计事务所，2020.
[2] 建筑结构荷载规范：GB 50009—2012[S].北京：中国建筑工业出版社，2012.
[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，2015.
[5] 钢管混凝土叠合柱结构技术规程：T/CECS 188—2019[S].北京：中国工程建设标准化协会，2019.
[2] 建筑结构荷载规范：GB 50009—2012[S].北京：中国建筑工业出版社，2012.
[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，2015.
[5] 钢管混凝土叠合柱结构技术规程：T/CECS 188—2019[S].北京：中国工程建设标准化协会，2019.
Structural design of the main tower of China Resources Wenzhou Laogang district complex
Abstract: The main tower of the second phase of China Resources Wenzhou laogang district is a 300 m high reinforced concrete frame-core tube structure, with steel tube-reinforced concrete columns at the bottom. The project is located in a high wind pressure area along the river, with an aspect ratio close to 7.5, which makes it difficult to design for wind resistance. In the project phase, the wind load on the facade was optimized through the wind balance test, which reduced the wind load input and made the structural system more concise and efficient. Due to the deep rock layer of the site and the thickness of the pebble layer up to 70 m, the pile foundation design adopted the rotary digging hole and C50 underwater concrete earlier in the local area, and improved the post-grouting technical measures. Optimal pile foundation scheme was determined through the comparison and selection of multiple pile types. The optimal pile foundation scheme achieved a reasonable balance between economy and bearing capacity. Due to the unilateral retreat of the building plan, the horizontal deformation of the tower was studied, and the effects of vertical load, uneven foundation settlement, and concrete shrinkage and creep were considered in the calculation and analysis. The results show that for super high-rise concrete structures, shrinkage and creep is a technical link that needs special attention. After considering the settlement of the foundation, the reinforcement law will change.
Keywords: shape optimization for wind load; pile foundation; steel tube-reinforced concrete column; shrinkage and creep
627
0
0