【摘要】 目前承台计算可概括为两类,一是将其作为受弯构件,按“梁式体系”计算模式对其进行受弯计算;二是建议按“撑系杆体系”进行分析和设计。比较国内外各规范介绍的承台计算方法和研究成果,探讨了桩承台计算模式的运用和选择。通过算例对两种计算模式作对比分析发现,各规范对承台的计算配筋值的规定有很大差别,很多情况下以承台的最小配筋率来控制其配筋量,准确确定承台最小配筋率对实际工程是重要的。更多还原

【Abstract】 Pile caps calculation is divided into two categories in recent years:1)Treating pile caps as a flexural resistance structural element,the capacity of flexural resistance concerning pile caps is calculated according to “beam system" mode;2)Pile caps are analyzed and designed according to “strut-tie system".The calculation methods introduced in each code and the corresponding research results are compared,the application and selection of pile caps calculation mode are explored,and the comparative analysis concerning these two calculation modes is made through examples.Since there is much difference on calculating reinforcement values of pile caps in each code,and the reinforcement value of pile caps is controlled by the minimal reinforcement ratio of pile caps in most cases,determining the minimal reinforcement ratio of pile caps accurately is of great significance to practical project.更多还原