深圳某超高层公寓楼结构动力性能研究

深圳某超高层公寓结构高度165.6m,对其进行振动台试验及罕遇地震动力弹塑性时程分析,分析显示:由于结构不规则,两肢交界处为结构的薄弱部位,应适当加强。动力时程数值模拟与试验结果吻合较好,且比试验更为全面和直观。     

某拟建大厦结构设计探讨

本文结合工程实际,介绍了某拟建大厦转换层的结构设计、计算方法、采取的构造措施,同时对本工程设计中几个主要问题的处理也进行了较详细的探讨,供同行参考。     

某学生公寓楼优化设计

通过对一栋钢筋混凝土剪力墙结构和框架结构的抗震性能、力学反应、材料用料和建筑造价等的分析比较,探讨了10层以下建筑中结构方案的选型,可供实际设计参考。     

天津嘉里中心公寓楼结构设计

天津嘉里中心8#公寓楼高204.31m,采用型钢混凝土框架-剪力墙组合结构体系。在层6由型钢混凝土转换构件将上部密柱外框架转换为落地疏柱,并通过搭接墙将顶部16.9m间距墙体转换为底部的18.3m间距,以获得更大的建筑空间。设计中对高位型钢混凝土转换层进行了深入计算分析,保证了转换结构的抗震性能目标和良好的可施工性,并结合试验进一步验证了搭接墙的传力机制和大震不屈服的设计要求。     

上海某超限高层建筑结构抗震设计

该超限高层属于平面及竖向均特别不规则的超限高层建筑。结构设计采用多种计算模型和计算程序对其进行反复计算和分析,并采取较为有效的抗震构造措施,希望为类似的超限高层结构设计提供借鉴及参考。     

泊富国际超高层公寓楼抗震性能评价及结构方案改进

泊富国际广场公寓楼高度接近规范对B级高度建筑最大容许值。原设计方案由于塔楼偏置、纵横向抗侧刚度相差较大以及竖向抗侧刚度突变等原因,导致结构抗震性能无法满足设计要求。利用MIDAS/Gen平台对结构进行了静力非线性计算与评价,并依据分析结论对结构方案进行局部调整与改进。通过对比分析发现,改进后的结构方案在抗震性能上获得了明显改善,结构构件预期性能达到目标水准。     

某不规则高层建筑结构抗震方案设计

某25层高层综合楼结构设计采用钢筋混凝土框－剪体系，由于建筑功能要求致使结构平面及竖向规划性多项“超限”。通过精心设计、反复调整、合理布置，使结构动力特性得以改善，并经多程序计算使结构刚度、地震作用下的位移、扭转等主要指标均基本满足了要求。     

某大厦结构模型模拟地震振动试验研究

通过介绍某大厦结构模型振动台试验结果，分析了以梁板转换层作高位转换的高层建筑的地震性能，并对该工程结构设计提出了建议。     

西咸新区某超限高层写字楼结构整体设计

通过应用两套不同的软件YJK和Midas Gen,对西咸新区某高层写字楼进行了结构设计和分析,得到了结构在地震作用下的内力和位移等结果,同时还对两种软件的计算结果进行了比较,通过重要指标的对比、分析,YJK与Midas Gen两种软件的计算结果基本一致,表明计算结果合理,有效,计算模型符合结构的实际工作状况,可供超限高层建筑结构设计参考。     

某公寓楼的抗震加固设计

对某公寓楼在首层柱混凝土强度不足情况下的加层进行了抗震加固设计.首先,分析了直接加层结构计算模型的动力特性.确定需加固部位,进而进行加固设计;最后,验算加固后加层结构的各项性能指标,均满足现行规范的各项要求,可为类似工程的加固设计提供借鉴经验.     

某大厦结构设计与分析

介绍了本工程的工程概况、超限内容、结构抗震分析、采取的结构设计措施、特殊部位的设计等,并提出了应注意的问题和抗震构造措施,以满足结构安全要求,符合结构抗震设计思想。     

Effect of vertical structural irregularity on seismic design of tall buildings

Many tall buildings are practically irregular as an entirely regular high‐rise building rarely exists. This study is thus devoted to assessing the approach and coefficients used in the seismic design of real‐life tall buildings with different vertical irregularity features. Five 50‐story buildings are selected and designed using finite element models and international building codes to represent the most common vertical irregularities of reinforced concrete tall buildings in regions of medium seismicity. Detailed fiber‐based simulation models are developed to assess the seismic response of the five benchmark buildings under the effect of 40 earthquake records representing far‐field and near‐source seismic scenarios. The results obtained from a large number of inelastic pushover and incremental dynamic analyses provide insights into the local and global seismic response of the reference structures and confirm the inferior local response of tall buildings with severe vertical irregularities. Due to the significant impacts of the severe irregularity types on the seismic response of tall buildings, the conservative code approach and coefficients are recommended for design. It is also concluded that although the design coefficients of buildings with moderate irregularities are adequately conservative, they can be revised to arrive at more consistent safety margins and cost‐effective designs.     

Quantitative evaluation and improvement of seismic resilience of a tall frame shear wall structure

Tall buildings are an important part of a city, and their earthquake-induced damage or collapse will lead to heavy losses, extended repair time, and casualties. Therefore, it is essential to quantify and improve the resilience of tall buildings. To this end, this paper develops a component damage-based metric to characterize tall buildings' functionality loss and then proposes a general quantitative evaluation process to evaluate tall buildings' resilience. Next, the evaluation process is applied to a 42-story reinforced concrete frame shear wall building to demonstrate its applicability. Finally, retrofit strategies on nonstructural components are discussed to enhance the building's resilience. It can be concluded that the proposed metric can be effectively used to evaluate tall buildings' functionality loss. The building being studied has great seismic resilience, with resilience values of 99.95%, 98.68%, and 88.69% at service level earthquake (SLE), design level earthquake (DBE), and maximum considered earthquake (MCE), respectively. The influence of nonstructural components on seismic resilience is greater than that of structural components at SLE and DBE levels. It is an effective alternative to enhance the seismic resilience of tall buildings under SLE and DBE by improving the performance of partition walls, ceilings, and equipment.     

浅析高层建筑混凝土施工质量控制

结合工程监理实践经验,从材料控制和裂缝控制两个方面分析了高层建筑混凝土施工的质量控制措施,对于高层建筑混凝土的质量控制具有指导意义。     

高层建筑结构设计计算中的若干问题

通过对高层建筑结构设计实践经验，从概念设计、计算模型的选取等方面，对多塔、错层、带转换层、楼板局部开大洞的结构设计体会进行了总结，提出一些具体建议，供结构设计人员参考。     

Modern developments in wind engineering: part 4

This is the fourth in a series of review papers devoted to the state-of-the-art in wind engineering. The first three parts of the series were published in the October 1981 (pp. 233–241 and 242–248) and March 1982 (pp. 66–74) issues of Engineering Structures.     

某中学文体中心结构超限设计

以某中学文体中心结构超限设计为例,对工程的超限情况及抗震措施进行了介绍,着重对结构整体的抗震性能进行了详细分析,通过计算比较,指出该工程满足规范要求,具有足够的承载力、刚度和延性性能。     

浅谈多层砌体结构房屋的抗震设计

综述了地震震级、烈度和抗震设防目标,分析了工程结构破坏的主要情形和多层砌体结构的抗震设计要点,以提高房屋的抗震能力,减少建筑物由于地震而造成的破坏。     

单元式中高层住宅的垂直交通构造

对单元式中高层住宅设置一台电梯的可行性进行了论证,并提出了电梯、楼梯及露台走道组合的垂直交通方案,指出该方案降低了住宅的建造成本,且构造简单,经济实用,以推广该方案在实际工程中的应用.     

体型收进对高层建筑结构抗震性能的影响

结合振动台试验现象和震害调查 ,对体型收进的框架结构进行了深入的计算分析和比较 ,研究了体型收进对高层建筑结构抗震性能的影响 ,对体型收进的位置、收进程度等影响因素进行了分析 ,并提出了带有收进的高层建筑结构设计时应注意的问题