昆山华润万象汇结构设计及加固改造

STRUCTURAL DESIGN AND REINFORCEMENT-RENOVATION OF KUNSHAN MIXC SHOPPING MALL

昆山华润万象汇属于超限多层商业综合体,存在扭转不规则、平面开大洞、局部错层、局部夹层、局部凹口、局部转换、局部类连体、结构超长等问题。在主体结构封顶后,业主对商业整体升级改造。文中系统地介绍结构多项不规则的处理措施、计算分析、超长结构的楼板温度应力分析、抗震性能化设计、加固改造的中悬挑梁板、新旧结合面抗剪验算、一些特殊问题处理等等设计问题,为类似项目提供一定的参考价值。

KunShan MIXC Shopping Mall presented in this paper is multi-layer commercial complex involving ultra-limit design.Structural designs of this complex faced several challenges including torsional irregularities,large holes discontinuing the plane,partial split-levelings and extra-levelings,local structural notches,local force conversions,conjoined structural detailings,and ultra-long structural designs.After the main structure is completed,the owner desired to have the commercial fully upgraded.A number of methods are systematically introduced in this article to help the reader further understand the problems involved in this project,which are the fortification methods for structural irregularities and its corresponding calculation analysis,temperature stress analysis of slabs involved in extra-long structure designs,performance-based seismic design,reinforcing suspension structures under renovation,tolerance calculations of new and old structural surface combinations,and other specific problems'solutions,which would provide valuable experiences for similar projects.