摘要
为了研究不同加强形式对微型钢管桩抗弯承载力的影响以及验证所建立的ANSYS模型的准确性,对9根微型钢管桩进行了抗弯性能试验,并在此基础上建立关于微型钢管桩抗弯性能的有限元模型,研究钢管管径、钢管内部填充材料类型等参数对微型钢管桩正截面承载力的影响。试验结果表明:钢管外径的增大对承载力提高影响最大,内部植筋影响次之,外包混凝土影响最小。有限元分析结果与试验结果较吻合,验证了该有限元模型的准确性,可应用于微型钢管桩的抗弯分析。
In order to study the influence of different methods to strengthen flexural bearing capacity of steel tube and verify the correctness of the established Model ANSYS,9 micro steel pipe piles were tested for the bending performance and establish the finite element model of the flexible behavior of the steel tube piles to study the influence of the diameter of steel tube and the type of steel tube filled with material. The test results show that the increased steel pipe diameters have the most profound effect on the bearing capacity,internal filling impact secondly,outsourcing concrete minimal impact. Finally,by comparing the results of finite element analysis from the tests,the accuracy of the finite element model is validated,which can be applied to the bending analysis of the micro steel pipe piles.
作者
邓朗妮
钱香国
马骏
彭来
DENG Lang-ni;QIAN Xiang-guo;MA Jun;PENG Lai(College of Civil Engineering and Architecture, Guangxi University of Science and Technology, Liuzhou 545006, Chin)
出处
《桂林理工大学学报》
CAS
北大核心
2017年第4期619-623,共5页
Journal of Guilin University of Technology
基金
国家自然科学基金项目(51568008
51108099)
关键词
微型钢管桩
正截面受弯
有限元分析
micro steel pipe pile
normal section flexible behavior
finite element analysis
