程健，张群力

（浙江省建筑设计研究院，杭州 310006）

 

［摘要］杭州湖滨国际名品街塔楼工程改造范围非常广，结构设计难度非常大。主要的改造内容有：1）东塔的底部拆除两层楼板，新加一层楼板；2）西塔的底部拆除三层楼板， 新加两层楼板；3）两塔通过新增的三层裙房和标准层连廊连为一体，形成了带错层的连体结构，结构的体型发生了重大变化。从整体结构出发，讨论结构体系的选择。通过调整结构布置来优化各项抗震指标，进而深化局部构件的加固和关键构件的节点设计，并分析了这些构件的优缺点。

［关键词］改造加固;结构体系;连体结构;错层结构;节点

中图分类号：TU- 375-05, TU 398-2文献标识码：B文章编号：1002-848X(2012)08-0147-04

 

Cheng Jian, Zhang Qunli

(Zhejiang Province Institute of Architectural Design and Research, Hangzhou 310006, China)

 

Abstract: The retrofit project of Hangzhou Hubin International Boutique Compound involved major transformation of the original structural system, which brought extreme difficulty to structural design. The major retrofit work includes: 1) two bottom floors of the east tower were demolished for the construction of a new floor; 2) three bottom floors of the west tower were demolished for the construction of two new floors; 3) the new floors of the two towers are connected by new built three-loor podium, and the original standard floors of the two towers are also connected by a series of sky-ridges. The two isolated towers are transformed into a connected structure with split levels, which makes the structural system has a great change. The structural design procedure is summarized for this project. The optimization of the overall structural system is presented, the strengthening of structural members are discussed as well as the design of key structural joints, and their characteristics are compared.

Keywords: retrofit and strengthening;structural system;connected structure;split evel structure;joint

作者简介：程健，硕士，一级注册结构工程师，Email：16468204@qq.om。

 

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