岩土工程学报2017，Vol.39Issue(z2)：203-206,4.DOI:10.11779/CJGE2017S2049
盾构隧道弯螺栓接头力学特性受预紧力影响的数值研究
Numerical study on mechanical behavior of bent bolted connection in shield tunnel under effect of preload
摘要
Abstract
With the help of ABAQUS FEM software, a numerical study is carried out on the mechanical properties of bent bolted connection in shield tunnel under the effect of preload, which offers theoretical evidence for the design and construction of bolted connection, considering the DP constitutive model fit for concrete as well as the plastic constitutive model fit for steel. The differences between the effect of preload under different load cases are analyzed, and the principle of the preload effect is revealed. The results show that the preload can improve the structural behavior of bent bolted connection, the restraint on the segment increases, and the entire deformation decreases.关键词
盾构隧道/弯螺栓/预紧力/DP模型Key words
shield tunnel/bent bolt/preload/DP constitutive model分类
交通工程引用本文复制引用
张稳军,张云旆,宋晓龙..盾构隧道弯螺栓接头力学特性受预紧力影响的数值研究[J].岩土工程学报,2017,39(z2):203-206,4.基金项目
国家重点研发计划项目(02016YFL0802403) （02016YFL0802403）
国家自然科学基金项目(51778412,51378342) （51778412,51378342）
