中外钢管桩内力验算方法对比

钢管桩作为一种多轴对称的钢结构,性能稳定,受力机理相对明确,在国内外港口工程中主要用于高桩码头的基础结构和板桩码头的主体结构。通过对比研究国标、欧标、美标API和美标AISC共4种国内外规范对于钢管桩内力验算方法,探究4种规范验算方法的差异性,为海外港口工程钢管桩内力验算方法选取提供参考建议。以某港口高桩墩台结构为例对比4种规范钢管桩内力验算方法,结果表明:1) AISC规范计算结果最小,即其充分考虑发挥结构的性能,偏安全。2)欧标计算的结果最大,相对保守。3)国标和API规范计算结果介于AISC规范和欧标之间。

Comparison of internal force calculation methods for steel pipe piles with Chinese and foreign codes

As a multi-axially symmetrical steel structure,steel pipe piles have stable performance and a relatively clear stress mechanisms. They are widely used in port engineering in China and foreign countries and are mainly used for the foundation structure of high-pile wharf and the main structure of sheet pile wharf. This article compares the calculation methods of the internal force of steel pipe piles in four domestic and foreign codes( Chinese standards,European standards,API,and AISC),to explores the differences among the four standard calculation methods,which provides a reference for the selection of internal force calculation methods of steel pipe piles in overseas projects. Finally,taking the high pile pier and abutment structure of a port as an example,the internal force of the steel pipe piles calculated by the four codes is compared. The results show that: 1) The AISC code calculation result is the smallest,that is,it fully considers the performance of the structure. The result is safe. 2) The European standard calculation result is the largest and relatively conservative. 3) The calculation results of Chinese code and API standard are between AISC standard and European standard.