非预应力抗浮锚杆设计探讨

Discussion on design of non-prestressed anchor against uplift

本文介绍了非预应力抗浮锚杆承载力的计算过程,对锚杆安全提出了"稳固段"的概念和计算方法;抗浮锚杆弹性工作,承载力利用与变形相关,建筑上浮变形和锚杆自身的变形都有一定的限值,对此,文中提出了锚杆中拉力"合理界限值"的概念和计算方法。通过工程实例结合新标准《建筑工程抗浮技术标准》的应用,说明本文方法适合工程设计。

This paper introduces the calculation process of bearing capacity of non-prestressed anchor against uplift, and puts forward the concept and calculation method of "Stable section" for anchor safety;the anchor against uplift works in elastic stage, and the utilization of bearing capacity is related to deformation, there is a certain limit value for the upward deformation of the building and the deformation of the anchor, in this paper, the concept and calculation method of "Reasonable limit value" of tensile force in anchor are put forward. Through engineering examples andthe application of New Standard "Technical standard for building engineering against uplift" shows that this method is suitable for engineering design.