Note: In the present software version, no connection categories are distinguished for this connection. All bolt categories are treated as regular bolts.
Calculations are performed for the following internal forces:
- longitudinal force Nb,Ed
- shear force Vb,Ed
- bending moment Mb,Ed.
Internal forces are reduced to the center of gravity of either the group of bolts or the group of welds that connect an element (angle, plate, stiffener) to the beam with the value:
- Nb,Ed longitudinal force
- Vb,Ed shear force
- M0 = Mb,Ed + Vb,Ed*e of bending moment.
For the bolted connection:
- e - the distance of the center of gravity of the group of bolts to the center of the principal beam flange (connection with the principal beam flange)
- e - the distance of the center of gravity of the group of bolts to the center of the principal beam web (connection with the principal beam web).
For the welded connection:
- e - the distance of the center of gravity of the group of welds to the center of the principal beam flange (connection with the principal beam flange)
- e - the distance of the center of gravity of the group of welds to the center of the principal beam web (connection with the principal beam web)
As a connection is verified, the software checks the resistance of the connection components:
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Bolts: [Table 3.4]
- tension resistance
- shear resistance
- bearing pressure resistance
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Connection resistance due to forces acting on bolts [3.12]
- bolts connecting the element (angle, plate, stiffener, support seats) with the beam
- bolts connecting the angle with the principal beam
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Beam [3.10.2]
- resistance of the beam web due to block tearing
-
Connecting elements [3.10.2]
- angle resistance due to block tearing
- plate resistance due to block tearing
- stiffener resistance due to block tearing
-
Welds [4.5.3]
- resistance of a weld connecting the plate with the beam
- resistance of a weld connecting the plate with the principal beam flange or web
- resistance of a weld connecting the angle with the principal beam
- resistance of a weld connecting the angle with the beam
- resistance of a weld connecting the stiffener with the beam
- resistance of a weld connecting the upper support seat with the principal beam and the beam
- resistance of a weld connecting the lower support seat with the principal beam and the beam
Plate connection
- During calculations of a plate weakened by openings, the longitudinal force Nb,Ed, shear force Vb,Ed, and the moment M0 are split by half between plates if you select Plate on both sides. Otherwise, the plate transfers a complete set of forces.
- Bolts that connect the plate to the beam transfer the longitudinal force Nb,Ed, shear force Vb,Ed, and moment M0.
- Welds that connect the principal beam to the beam transfer the longitudinal force Nb,Ed, shear force Vb,Ed, and moment M0. If you select Plate on both sides, the set of forces is split by half between welds of plates.
- Welds that connect the principal beam to the plate transfer the longitudinal force Nb,Ed, shear force Vb,Ed, and moment Mb,Ed. If you select Plate on both sides, the set of forces is split by half between welds of plates.
Angle connection
(Angle connected by bolts to the principal beam and the beam)
- During calculations of an angle weakened by openings, the longitudinal force Nb,Ed, shear force Vb,Ed, and moment M0 are split by half between angles.
- Bolts that connect the angle to the beam transfer the longitudinal force Nb,Ed, shear force Vb,Ed, and moment M0.
- Bolts that connect the angle to the principal beam transfer half the longitudinal force Nb,Ed, shear force Vb,Ed, and moment M0. The moment M0 is changed to a pair of forces on the arm equal to the distance between 2 extreme bolts positioned vertically (for bolts positioned horizontally, the moment is not taken into account).
(Angle connected by welds to the principal beam and the beam)
- The forces Nb,Ed and Vb,Ed and moment M0 are split by half between welds of angles that connect angles to the beam.
- Welds that connect the angle to the principal beam transfer half the longitudinal force Nb,Ed, shear force Vb,Ed, and moment M0.
Connection with the short and long stiffener
- Bolts that connect the stiffener to the beam transfer the forces Nb,Ed, Vb,Ed, and M0.
- Welds that connect the stiffener to the beam transfer the forces Nb,Ed, Vb,Ed, and M0.
Connection by means of support seats
- The longitudinal force Nb,Ed is split by half between the upper and the lower support seats. For a bolted connection, it is transferred by bolts that connect the support seat to the beam (bolt shear), and bolts that connect the principal beam to the support seat (pull-out of bolts). For a welded connection, it is transferred by welds.
- The bending moment Mb,Ed is changed to a pair of forces of the value F,Ed = Mb,Ed / hb (where hb = beam section height). These forces are transferred by bolts that connect support seats to the beam (pull-out of bolts) and bolts that connect the principal beam to the support seat (pull-out of bolts).
- The shear force Vb,Ed is split by half between bolts that connect support seats to the principal beam for a bolted connection. For a welded connection, the shear force Vb,Ed is transferred by welds.
Connection by means of angles and support seats
- The longitudinal force Nb,Ed is split uniformly among support seats. Its value equals F,Ed = Nb,Ed / 2 and is transferred either by bolts or by welds (depending on the selection of fasteners).
- The bending moment Mb,Ed is changed to a pair of forces of the value F,Ed = Mb,Ed / hb and is transferred by support seats.
- Bolts (or welds) that connect the angle to the beam transfer the shear force Vb,Ed and the bending moment M0 = Vb,Ed * e (where e = distance between the center of gravity of the group of bolts / welds of the angle and the edge of the principal beam flange).
- Bolts / welds that connect the angle to the principal beam transfer half the shear force.
Connection with the plate and support seats
- The longitudinal force Nb,Ed is split uniformly among support seats. Its value equals F,Ed = Nb,Ed / 2 and is transferred either by bolts or by welds (depending on the selected fasteners).
- The bending moment Mb,Ed is changed to a pair of forces of the value F,Ed = Mb,Ed / hb and is transferred by support seats.
- Bolts (or welds) that connect the plate to the beam transfer the shear force Vb,Ed and the bending moment M0 = Vb,Ed * e (where e = distance between the center of gravity of the group of bolts / welds of the plate and the center of the principal beam web).
- Welds that connect the plate to the principal beam transfer the shear force Vb,Ed (when Plate on one side is selected) or half the force (when Plate on both sides is selected).