上海某既有超高层加固改造项目结构设计

Structural reinforcement design in renovation of an existing super high-rise building in Shanghai

随着我国城市化脚步的逐步放缓,“城市更新”的新概念开始崭露头角。为更好地适应社会发展的需要,越来越多的老建筑都面临着升级改造的任务,尤其对于位于大城市市中心的老旧超高层来说,业态调整、功能升级是摆脱运营困境,重新焕发活力的必经过程。从改造内容、不同年代规范差异、加固方法和加固效果等角度出发,阐述了上海某既有超高层加固改造项目的结构设计。经计算分析,该项目所采用的“黏滞阻尼墙+局部构件加固”的加固方法,可通过合理地布置黏滞阻尼装置,有效减小结构的地震作用、减少抗侧力构件的加固量,是一种安全、高效、经济、可行的改造加固方式。

The new concept of“Urban Regeneration”has come to the fore since the pace of urbanization in China has slowed down.In order to adapt to the needs of social development in a better level,more and more existing buildings are facing the task of upgrading and reconstruction,especially for existing super high-rise buildings located in the center of metropolis.This paper expounds the structural reinforcement design of an existing super high-rise building in Shanghai from the perspective of renovation content,code differences in different ages,reinforcement methods and effects.Through calculation and analysis,the structural reinforcement method adopted,which is known as“Viscous damping wall+Component reinforcement”,can effectively reduce the seismic power by installing viscous damping devices in the existing building in a proper way.The method is safe,efficient,economical and feasible.