大底盘双塔连体复杂高层结构的连接体设计

Connecting Body Design of Complex High-rise Structure of Connected Twin-tower Building with Enlarged Base

大底盘双塔连体复杂高层结构是一种新型结构形式,其连接体是大底盘双塔连体复杂高层结构的重要组成部分。连接体可以是架空的楼面,也可以是架空的连廊;可以是一层或者多层;可沿结构竖向设置一道或者多道。连接体自身受力一般都很复杂,对结构的整体受力性能影响较大。结合工程实例,该文对连接体的基本结构形式进行了介绍,并对各种结构形式的受力特点进行了分析,讨论了连接体的连接方式对大底盘双塔连体结构的抗震性能影响,最后利用ETABS有限元分析软件对9种结构布置方案进行了计算分析比较,并结合建筑立面和功能的需要,最终选择出了最优方案。该文可供建筑结构设计人员在进行此类复杂结构的连接体设计时参考。

The connected twin-tower structure with enlarged base is a new form of structure,and the connection body is an important part of the complex high-rise structure of the connected twin-tower building with enlarged base.The connecting body can be overhead floor and corridor,can be one-layer and multi-layer and can be established with one structure and more structures along the vertical structure.The stress of connecting body is very complex,so it exerts comparatively profound impact on the overall mechanical behavior of structure.Based on a practical construction case,basic connection forms with stress features are introduced.The impact of connection modes on seismic performance of connected twin-tower structure with enlarged base are discussed.Through analysis on nine schemes of structural layout with ETABS,and given the requirements of building facades and functions,the optimal connection scheme is selected.This research can provide some useful references for relevant designers.