中、美、欧板柱基础抗拔设计安全度对比研究

Contrast Study on the Safety of Anti-pull-out Design for Plate Column Foundation of the PRC, the US and the EU

通过对比中国规范DL/T 5219—2014、美国规范IEEE 691—2001和欧盟规范EN 50341—2012,介绍了中、美、欧规范中板柱基础抗拔设计的计算原理及差异;并推导了统一的设计表达式,提出用最小等效安全系数评价基础设计安全度的概念。以某工程基础为例,对中、美、欧规范中板柱基础抗拔设计中的抗拔承载力和最小等效安全系数进行了计算对比,并评价了各自的安全度水平。

Through comparing the specifications of DL/T 5219-2014,IEEE 691-2001 and EN 50341-2012,it introduce the uplift design method and differences between the PRC,the US and the EU.A unified design expression is deduced,and the concept of safety degree of basic design is evaluated by using minimum equivalent safety factor.Taking an engineering foundation as an example,the uplift capacity and the minimum equivalent safety factor in the design of spread foundation in the PRC,the US and the EU specifications are calculated and contrasted,and the respective safety levels are evaluated.