Overview list of specified characteristics of joints in pipeline based on element list (Output Table)
Data description/Result options:
ELEM:
Element number assigned to joint
JOINTREF:
Reference name from input tables PIPES and JOINTS or JNTSPRS
Type of joint (1)
(Socket-L: socket-spigot connection without stop
Socket-S: socket-spigot connection with stop
Spigot-L: spigot-socket connection without stop
Spigot-S: spigot-socket connection with stop
Sleeve-L: double socketed coupling sleeve without stop
Sleeve-S: double socketed coupling sleeve with stop
Ball: ball hinge (free rotations in all directions)
Hinge: pin hinge (free rotation around one axis)
Tight: connection with resistance to tensile strain, no free translations and rotations
Bellows: bellows type of connection with axial, transverse, rotational and torsional stiffnesses)
x-C:
Clearance in axial socket direction in case of compression (2)
x-T:
Clearance in axial socket direction in case of tension (2)
MaxRot:
Maximum physically possible joint rotation (3)
Rotdir:
Angle between the plane of rotation and the horizontal plane (4)
IniRot:
Initial lateral angular difference in the joint
THETA:
Initial angle between plane of the elements adjacent to the joint and the horizontal plane
OVALtype:
Indication of ring stiffness of joint construction to be used for redistribution of element ovalisations in Design Function 6.1
[Default: a FREE end condition]
k-AX:
Axial stiffness of joint
k-LAT:
Lateral (transverse) stiffness of joint
k-TORS:
Torsional stiffness of joint
k-ROT:
Rotational stiffness of joint
See Pipeline Joints for more information about the various types of joint and Note 1 of table JOINTS for the schematics.
Undefined for TYPE = Ball, Hinge or Tight.
Undefined for TYPE = Tight only.
MaxRot in this output table may be less than the assigned value of AllowRot in input table JOINTS (see limitation of the maximum rotation).
(≥ 0. AND < 360.) if TYPE = Hinge, else Undefined.
The stiffnesses remain constant during the calculations in Design Function 5.
H330521 (last modified: Oct 20, 2025)
See also: