|Table of Contents|

Mechanical Performance of Reinforcement Grouted Sleeve Connection(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2019年02期
Page:
21-29
Research Field:
Publishing date:

Info

Title:
Mechanical Performance of Reinforcement Grouted Sleeve Connection
Author(s):
WU Tao;  WANG Shen;  LIU Yi-bin;  ZHANG Bin
(School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China)
Keywords:
prefabricated assembly structure;  grouted sleeve connection;  pull-out test;  sleeve wall stress
PACS:
TU377.9
DOI:
-
Abstract:
Twenty grouted sleeve connections were tested under uniaxial tension, and the effects of sleeve type, anchorage length and reinforcement diameter on the strain of sleeve wall were studied. Using finite element software ANSYS Workbench and taking steel sleeve connections as prototype, the stress-strain curves of steel bars obtained by experiment and finite element simulation were compared. Using the same modeling method, two models of steel sleeve connections with different specifications were established. The effect of net distance change on the strain of sleeve wall was studied by uniaxial tension test of simulated specimens. The results show that compared with cast iron sleeve, steel sleeve with the same diameter and anchorage length has smaller wall strain at the same steel stress level. When the material of sleeve and the diameter of reinforcement are the same, the longer the connection anchorage, the smaller the strain of the tube wall. When the diameter of the connecting bar is taken as a variable, the thicker the connecting bar is, the larger the strain value of the tube wall is. The simulation curves can reflect the failure process of the specimens and show the actual development of strain at the measured points of the tube wall. It is proved that the finite element method can effectively simulate the stress state of the sleeve grouted connections under uniaxial tension. At the same tension level, the tube wall strain of the barrel part with large net distance is small.

References:

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Last Update: 2019-03-27