摘要
该文以天津港南疆复线公路桥为背景,首先,采用大型非线性有限元软件ABAQUS,对在距离桥梁固定位置处不同堆土高度对桥梁墩柱的沉降和水平变位以及桥梁基础地基塑性区的发展情况进行了有限元分析,其次,应用分层总和法计算了不同高度堆载作用下的地基沉降量;通过数值分析结果、解析解的计算结果和现场实测结果的相互对比,三者之间吻合较好。最后,对不同堆载高度作用下,桥梁地基中的附加应力的发展情况进行了有限元分析。上述计算结果可以为相关项目的设计和运营提供一定的依据和参考。
As the example of southern border double-track road bridge of Tianjin port for the back- ground, first the settlement and horizontal displacement of bridge pier column in different fitting depth at the fixed location, and the plastic zones development in soil foundation of bridge are analyzed with finite element software ABAQUS. Secondly, the layerwise summation method is applied to calculate the settle- ment of founclation with different fitting depth; through the mutual contrast, it found that the results by numerical analytical method are in good agreement with those by analytical solution , the field measured results. Finally, the additional stress of bridge foundation is analyzed using the finite element methods. The calculated results obtained above may provide basis and reference for the design and operation of pro- jects related to.
出处
《勘察科学技术》
2013年第3期1-4,共4页
Site Investigation Science and Technology
关键词
堆载
桥梁
有限元分析
位移
塑性区
heaped load
bridge
FEM analysis
displacement
plastic zone
