构架式钢结构塔架的抗连续倒塌概念设计

近年来,各行各业出现了大量高度很高、横断面较小、造型新颖的高耸类建筑物或构筑物作为当地的地标建筑。这类建筑物具有多种功能,结构因偶然作用发生局部破坏后,其抗连续倒塌性能不仅对其使用功能有重大影响,同时影响人们的生命财产安全。文中根据高耸结构的特点,从荷载组合、结构选型、塔柱和斜腹杆设计等方面分析了提高塔架结构抗连续倒塌能力的概念设计方法,供工程师设计时参考和借鉴。

Conceptual Design of Progressive Collapse Resistance for Lattice Tower Structures

In recent years,a lot of high-rise,light and flexible structures were disigned as landmarks buildings in many cities.These buildings combine many functions in themselves.Then,the progressive collapse initiated by the failure of one or more load-carrying members will have an impact not only their regular services but also the safety of the lives and property of the people.In this paper,the conceptual design method is proposed to improve the progressive collapse resistance from the load combination,the structure selection,the column and diagonal member array according to the feature of high-rise structures.