某小品建筑结构体系创新研究

Structure system innovation research of a special building

某小品建筑为苏州一高端度假酒店入口大堂前端回车场,平面形状为四周矩形、内侧圆形开洞的全开敞式单层建筑。结构柱只能布置于四周矩形墙体内,结构柱所在位置至内环跨度较大,传统悬挑结构无法实现。结合内环标高高于结构柱顶的特点,构造了一种利用内环在竖向荷载下形成自适应竖向几何刚度的新型结构受力体系,使屋面构件由弯曲为主的受力模式转化为受压和压弯为主的受力模式,较大程度的提高了结构效率。同时对结构进行了屈曲分析、非线性极限承载力分析,确保结构体系的可靠性。可以为类似小品建筑的结构设计提供一些思路借鉴。

A single floor return yard building in front of the hotel entrance lobby, which belongs to one high-end resort hotel in Suzhou, is a rectangle layout with a inner open circle yard. Structure column can only set in the outside rectangle wall, distance form column to the inner circle is huge, while cantilevered structure can not use in such span. As inner circle elevation is higher than column top, a new structure system is developed for using the inner circle as a pressure ring under vertical load, then roof structure member is mainly under pressure instead of bending, and also enhanced is the structure efficiency. Buckling analysis, nonlinear ultimate bearing capacity analysis is taken to guarantee the reliability of the structure. And can provide some design thought of similar building’s structure design.