弹簧-梁模型计算浆锚连接节点受拉研究

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中图分类号：TU398.7；TB115.1 文献标志码：B

Research on the tension calculationproblem of slurry anchors connect

LI Ruixi， XIA Zhiqiang， ZHOU Wenjun （Civil Engineering Colege，Jilin Universityof Architectureand Technology，Changchun l30114，China）

Abstract： In order to reliably solve the engineering structural mechanics calculation problem of slurry anchors connectunder tensioncondition，firstly，the reliabilityof slip modeland fracture model is verified by comparative analysis of experiment and simulation. Then，the spring-beammodel is applied to establish the joint of the slurry anchor connect，and the slip and fracture constitutive relationship are assigned to the model. Finally，the R parameter value is determined to ensure that the calculated results are close to the experimental data in the literature.The results show that the beam element fracture model can accurately simulate the bonding failure of mortar by introducing the Ductile Damage failure criterion， the value of parameter R is not affected only by changing the embedment length of rebar. The springbeam model is used to simulate the joint tension problem of the slurry anchor connection structure，and the results are reliable. The key parameter R can be determined by test and simulation benchmarking method.

Key words： slurry anchor connection； spring-beam； fracture model；constitutive model； stiffness model

0引言

建筑结构在现场进行混凝土浇注作业，需要较长的施工周期，如果预制装配式结构在工厂预制好再运到现场安装，那么施工速度相对于传统的现浇混凝土结构要快一些。（剩余6232字）