某特别不规则高层建筑结构设计与分析
引用文献：
胡道航. 某特别不规则高层建筑结构设计与分析[J]. 建筑结构，2022，48（23）：92-99.
HU Daohang. Structural design and analysis of a particularly irregular high-rise building[J]. Building Structure，2022,48（23）：92-99.
摘要：为满足建筑立面效果和使用功能的要求，某高层建筑结构存在扭转不规则、楼板不连续、尺寸突变、构件间断、承载力突变和局部不规则共6项不规则，是典型的特别不规则超限高层建筑结构。该工程的设计重难点是需要针对每一个不规则项进行专项分析研究，提出针对性的结构方案和加强措施。对穿层柱进行弹性屈曲分析，复核穿层柱的真实计算长度；对转换构件进行多方案比选，做到传力清晰并避免“米”字形复杂节点，降低施工难度；对竖向收进部位上、下层进行加强并控制层间位移角比值来减少刚度突变；对大悬挑构件配置预应力筋控制梁的裂缝和挠度；对楼板大开洞部位，通过楼板应力分析考察楼板能否有效传递水平作用，并根据应力结果进行补强。结构整体弹性和弹塑性分析结果表明，通过专项分析加强后主体结构能达到预定的性能目标，且结构关键构件在罕遇地震下不屈服，具有良好的延性。
关键词：特别不规则高层建筑；桁架转换；体型收进；楼板应力分析；穿层柱；预应力悬挑梁；抗震性能化设计；
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] 超限高层建筑工程抗震设防专项审查技术要点：建质[2015]67号[A].北京：中华人民共和国住房和城乡建设部，2015.
[2] 建筑抗震设计规范：GB 50011—2010[S].2016年版.北京：中国建筑工业出版社，2016.
[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] 陆天天，赵昕，丁洁民，等.上海中心大厦结构整体稳定性分析及巨型柱计算长度研究[J].建筑结构学报，2011,32(7):8-14.
[5] 桂堃，彭丽红.南京某大型商业裙房结构设计[J].建筑结构，2020,50(4):100-105.
[6] 杨金明，凌沛春，池彦忠.移动硅谷创新中心二期7#办公楼叠层斜腹桁架托柱转换设计[J].建筑结构，2016,46(24):12-16.
[7] 陆道渊，刘灿，姜文伟，等.体型收进对多重复杂超高层结构抗震性能影响分析[J].建筑结构，2014,44(18):14-17.
[8] 混凝土结构设计规范：GB 50010—2010[S].北京：中国建筑工业出版社，2011.
[9] 徐培福.复杂高层建筑结构设计[M].北京：中国建筑工业出版社，2005.
[10] 舒哲.结构大师篇——Midas Building从入门到精通[M].2版.北京：中国建筑工业出版社，2018.
[2] 建筑抗震设计规范：GB 50011—2010[S].2016年版.北京：中国建筑工业出版社，2016.
[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] 陆天天，赵昕，丁洁民，等.上海中心大厦结构整体稳定性分析及巨型柱计算长度研究[J].建筑结构学报，2011,32(7):8-14.
[5] 桂堃，彭丽红.南京某大型商业裙房结构设计[J].建筑结构，2020,50(4):100-105.
[6] 杨金明，凌沛春，池彦忠.移动硅谷创新中心二期7#办公楼叠层斜腹桁架托柱转换设计[J].建筑结构，2016,46(24):12-16.
[7] 陆道渊，刘灿，姜文伟，等.体型收进对多重复杂超高层结构抗震性能影响分析[J].建筑结构，2014,44(18):14-17.
[8] 混凝土结构设计规范：GB 50010—2010[S].北京：中国建筑工业出版社，2011.
[9] 徐培福.复杂高层建筑结构设计[M].北京：中国建筑工业出版社，2005.
[10] 舒哲.结构大师篇——Midas Building从入门到精通[M].2版.北京：中国建筑工业出版社，2018.
Structural design and analysis of a particularly irregular high-rise building
Abstract: In order to meet the requirements of building facade effect and use function, a high-rise building structure has six irregularities, including torsion irregularity, slab discontinuity, size mutation, member discontinuity, bearing capacity mutation and local irregularity. It is a typical particularly irregular out-of-code high-rise building structure. The key and difficult point of the design of the project is to carry out special analysis and research for each irregular item, and propose targeted structural schemes and strengthening measures. The elastic buckling analysis of the cross-layer column was carried out, and the real calculated length of the cross-layer column was checked. Multiple schemes were compared and selected for the transfer components to ensure clear force transmission, avoid the complex double-cross-shaped nodes, and reduce the construction difficulty. The vertical setback part was strengthened and the ratio of interlayer displacement drift was controlled to reduce the stiffness change. For large cantilevered members, prestressed reinforcement was used to control the crack and deflection of the beam. The slab stress analysis was conducted to investigate whether the slab could effectively transfer the horizontal action in the large opening parts of the slab, and the reinforcement was carried out according to the stress results. The results of elastic and elastic-plastic analysis show that the main structure can reach the predetermined performance target after the above special analysis and the key components of the structure do not yield under the rare earthquake, and it has good ductility.
Keywords: particularly irregular high-rise building; truss transfer; vertical setback; slab stress analysis; cross-layer column; prestressed cantilevered beam; performance-based seismic design
339
0
0