Proposed design chart of mechanical joints on steel-PHC composite piles

Yunsup Shin, Myoungmo Kim, Junyoung Ko, Sangseom Jeong

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A fundamental study of a mechanical joint in a steel-PHC composite pile subjected to combined loads was done using three-point bending tests and 3D finite element analyses. The three-point bending tests were conducted to evaluate load-deformation response, strain distribution on the pile, ultimate bending moment and failure mode of the mechanical joint on steel-PHC composite piles. In addition, 3D finite element analysis for the mechanical joint was performed and then, the stress distributions and the maximum load resistances of each parts of the joint were estimated by comparing the calculated stresses to the yielding stresses of the joint materials. The 3D numerical methodology in the present study represents a realistic mechanism of mechanical joints. Through detailed numerical analysis, it is found that the behaviour of mechanical joint of composite piles shows safe side under working load. Based on these results, the design chart for steel-PHC piles has been proposed to be convenient for preliminary design stage which can be used to evaluate the safety of mechanical joints.

Original languageEnglish
Pages (from-to)1221-1238
Number of pages18
JournalMaterials and Structures/Materiaux et Constructions
Issue number7
Publication statusPublished - 2014 Jul

Bibliographical note

Funding Information:
Acknowledgments This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2011-0030842).

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science
  • Mechanics of Materials


Dive into the research topics of 'Proposed design chart of mechanical joints on steel-PHC composite piles'. Together they form a unique fingerprint.

Cite this