某超高层大倾角斜柱转换楼层设计和施工分析

Design and Construction Analysis on Transferring Stories with Large Angle Inclined Columns of a Super High-Rise Building

斜柱转换是超高层结构设计和施工的重难点。深圳某250 m超高层采用23°大倾角斜柱转换,对其斜柱转换的传力途径、节点构造、施工方案等进行分析与总结。研究了斜柱相关楼板传力机制,斜柱相关楼面梁传力机制,提出了针对性的设计方法,并对斜柱及相关节点进行了承载力计算和有限元分析。将转换层受力机制同施工方式结合考虑,对不同立面位置提出不同的施工方案,优化了施工组织安排。其设计和施工方案,可为今后类似工程提供参考。

Transferring stories with inclined columns are the emphasis and difficulties during design and construction phase.The angle of transferring inclined columns of a super high rise building in Shenzhenis as much as23degree.The force transferring mechanism,connection detail and construction scheme are analyzed and summarized,including the force transferring mechanism of the related slab,and the force transferring mechanism of the related beams.The corresponding design details are provided,such as the capacity calculation and the FEM analysis of the inclined columns and the related connections.Based on force transferring mechanism analysis of the transferring stories,different construction schemes with different elevationsare provided accordingly,with optimizedconstruction organization.The design detail and construction plan provide some reference for similarprojects in future.