单桩竖向抗压刚度的集成刚度法  

Integrated stiffness method for vertical compressive stiffness of single pile

作　　者：张武 姚晓旭 张波 高炳琪 Zhang Wu;Yao Xiaoxu;Zhang Bo;Gao Bingqi(China Academy of Beijing Research,Beijing 100013,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013

出　　处：《建筑科学》2021年第5期37-43,共7页Building Science

摘　　要：本文通过力学基本原理分析了文献[4]所述单桩竖向抗压刚度的集成刚度法的物理本质,验证了集成刚度法中力学概念的合理性,完善了计算公式中某些未确定参数的取值方法,以集成刚度法分别计算了科特迪瓦阿比让奥林匹克体育场、科特迪瓦阿比让VIRID集装箱码头轨道试验桩的单桩竖向抗压刚度k_(p),通过与工程桩静载检测数据直接计算所得k_(p)相比较说明,如果选取合适的计算参数,集成刚度法的k_(p)值与静载试验的数据相近。In this paper,the physical essence of the integrated stiffness method for vertical compression stiffness of single pile described in paper [4]is analyzed based on the basic principle of mechanics,thus the rationality of the mechanical concept in the integrated stiffness method is verified,and the method for selecting some uncertain parameters in the calculation formula is improved. The integrated stiffness method is used to calculate the vertical compressive stiffness k_(p)of single pile of the Olympic stadium in Abidjan,and VIRID container terminal track test pile in Abidjan,Cote d’ivoire. Comparing with the k_(p)calculated directly from the static load test data of engineering piles,it is shown that the k_(p)value of the integrated stiffness method is similar to the static load test data by selecting appropriate calculation parameters.

关 键 词：单桩竖向抗压刚度 分段递推法 集成刚度法 静载试验 

分 类 号：TU473[建筑科学—结构工程]