承台受力性能分析及计算方法的研究

随着桥梁美学要求的不断提升,下部墩台结构逐渐呈现多样化,从而使承台在桥梁基础中运用越来越多,尤其在现浇箱梁结构中,柱式或薄壁式桥墩接承台桩基的组合形式被广泛运用,但在桥梁设计规范中对承台的受弯性能及计算方法上不甚明了.文章通过对承台受力性能的原理分析,结合工程实例,总结承台的计算方法,为工程设计提供参考依据.

Stress Performance Analysis and Calculation Method Research of Pile Caps

With the continuous upgrading of the bridge aesthetic requirements, the lower part of the pier structure gradually diversified. And the pile caps had been used in bridge foundation more and more, especially in cast-in-situ box girder structure, thin wall type pier column or ground pile cap foundation combination forms were widely used. But bending performance and calculation methods of pile cap were not clear in bridge design specifications. Combined with the engineering example, this article analyzed principles of bearing mechanical behavior and summarized calculation methods for pile caps, which could be taken as reference for engineering design.