【摘要】 南京某医院采用逆作法建造6层地下车库，因桩基施工误差原因，部分钢管混凝土柱倾斜偏位，影响各层混凝土梁与柱的连接，以及后期机械车库的使用功能。针对此问题采取两阶段处理，第一阶段为保留偏位钢管柱，扩大原外环板，保证各层梁能与柱按理论位置正常施工，经有限元分析结构安全性满足要求；第二阶段为主体完工后采用临时支撑进行荷载托换，拆除偏位钢管柱后新建钢筋混凝土柱。通过以上处理措施，消除偏位柱附加应力对结构的不利影响，提高了结构安全性，保证了建筑功能正常使用。更多还原

【Abstract】 A hospital in Nanjing used the reverse construction method to build a six story underground garage.Due to errors in pile foundation construction,some concrete-filled steel tubular columns were tilted and misaligned,affecting the connection between concrete beams and columns on each floor,as well as the functionality of the mechanical garage in the later stage.This article adopted a two-stage approach to address this issue.In the first stage,the offset steel pipe columns were retained,and the original outer ring plate was expanded to ensure that the beams and columns on each floor can be constructed in their theoretical positions.After finite element analysis,the structural safety meets the requirements.The second stage is to use temporary supports for load replacement after the completion of the main structure,remove the offset steel pipe columns,and build new reinforced concrete columns.Through the above measures,the adverse effects of additional stress on the structure caused by offset columns can be eliminated,providing structural safety and ensuring the normal use of building functions.更多还原