北京洋桥地下车库抗浮锚杆设计

DESIGN FOR ANTI-FLOAT ANCHOR OF A UNDERGROUND GARAGE AT BEIJING YANGQIAO

结合实际工程,比较地下建筑常用的三种抗浮措施,结果表明抗浮锚杆易于施工、造价低廉且利于地下建筑和与其相连的主楼基础间的变形协调,在浮力水头较大时往往优于压重和抗拔桩方案。梳理和探讨抗浮锚杆的设计方法,并介绍保证抗浮锚杆耐久性和锚固节点处防水的构造措施。

With an anti-float design of an underground garage, there common anti-float technologies are compared. Anti-float anchor technology reduces the structure-building price and advantage of stress and deformation coordination of the underground structure and the construction of anti-float anchor is simple. This paper aims to introduce a design method for anti-float anchor, provide structural measures to ensure the anti floating anchor durability and waterproof at anchor nodes.