DOI: 10.11799/ce201804008
Experimental research on pipe truss joint of Shanxi Pinglu coal conveyer gallery
MENG Wen-qing
GONG Song
SHEN Jin-sheng
CUI Han-long
Abstract：In the lower-chord panel point of Shanxi Pinglu coal conveyer gallery pipe truss, outer ring plate and the vertical web rod H-Beam of the bottom chord plane connect, its structure and the bearing condition are more complicated, which is beyond the scope of the relevant provisions of the existing national specification. In order to evaluate the static performance of such nodes, the full scale model static test is carried out. Firstly, the design of test joint, loading device, loading program, and measure point layout scheme were introduced in detailed. Secondly, the stress development, deformation process and failure mode are analyzed during the loading process, and the ultimate bearing capacity is obtained. Finally, the finite element method is used to numerically simulate the node. The results show that the node has good carrying capacity and can meet the requirements of engineering design; the weak part of the node area is in joints between pressure pipe and outer ring, and this can be enhanced by increasing the length of outer ring plate inserted into the pressure manifold or enlarging the diameter of the pressure manifold; finite element analysis can simulate the bearing behavior of the test joint satisfactorily.
Keywords：space with ring plate NT type nodefull-scale testnumerical simulationstatic behavior
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 25-29 )