Bolted Connections

This mode enables you to check bolted connections of the following three types:

The set of checks depends on the type of the connection and the set of loads it is subjected to.

The following checks are performed in accordance with the selected design code:

Attachments of angles are checked for:

SNiP II-23-81*

SNiP RK5.04-23-2002

SP 53-102-2004

SP 16.13330

DBN B.2.6-163:2010

DBN B.2.6-198:2014

ShNK 2.03.05-13

bearing of the angle

Sec. 11.7

Sec. 11.7

Sec. 15.2.9

Sec. 14.2.9

Sec. 1.12.2.9

Sec. 16.2.9

Sec. 13.7

shearing of bolts

Sec. 11.7

Sec. 11.7

Sec. 15.2.9

Sec. 14.2.9

Sec. 1.12.2.9

Sec 16.2.9

Sec. 13.7

strength of the angle weakened section

Sec. 5.12, 5.25*

Sec. 5.12, 5.25

Sec. 9.2.1, 10.1.1

Sec. 8.2.1, 9.1.1

Sec. 1.5.2.1, 1.6.1.1

Sec. 9.2.1, 10.1.1

Sec. 7.12, 7.25

 

Gusset plate connections are checked for:

SNiP II-23-81*

SNiP RK5.04-23-2002

SP 53-102-2004

SP 16.13330

DBN B.2.6-163:2010

DBN B.2.6-198:2014

ShNK 2.03.05-13

bearing of the gusset plate

Sec. 11.7

Sec. 11.7

Sec. 15.2.9

Sec. 14.2.9

Sec. 1.12.2.9

Sec. 16.2.9

Sec. 13.7

bearing of the web

Sec. 11.7

Sec. 11.7

Sec. 15.2.9

Sec. 14.2.9

Sec. 1.12.2.9

Sec. 16.2.9

Sec. 13.7

shearing of bolts

Sec. 11.7

Sec. 11.7

Sec. 15.2.9

Sec. 14.2.9

Sec. 1.12.2.9

Sec. 16.2.9

Sec. 13.7

strength of the gusset plate weakened section

Sec. 11.7

Sec. 11.7

Sec. 9.2.1, 10.1.1

Sec. 8.2.1, 9.1.1

Sec. 1.5.2.1, 1.6.1.1

Sec. 9.2.1, 10.1.1

Sec. 13.7

 

Attachments of the beam web are checked for:

SNiP II-23-81*

SNiP RK5.04-23-2002

SP 53-102-2004

SP 16.13330

DBN B.2.6-163:2010

DBN B.2.6-198:2014

ShNK 2.03.05-13

bearing of the gusset plate

Sec. 11.7

Sec. 11.7

Sec. 15.2.9

Sec. 14.2.9

Sec. 1.12.2.9

Sec. 16.2.9

Sec. 13.7

bearing of the web

Sec. 11.7

Sec. 11.7

Sec. 15.2.9

Sec. 14.2.9

Sec. 1.12.2.9

Sec. 16.2.9

Sec. 13.7

shearing of bolts

Sec. 11.7

Sec. 11.7

Sec. 15.2.9

Sec. 14.2.9

Sec. 1.12.2.9

Sec. 16.2.9

Sec. 13.7

strength of the gusset plate weakened section

Sec. 5.12, 5.25*

Sec. 5.12, 5.25

Sec. 9.2.1, 10.1.1

Sec. 8.2.1, 9.1.1

Sec. 1.5.2.1, 1.6.1.1

Sec. 9.2.1, 10.1.1

Sec. 7.12, 7.25

strength of the beam web weakened section

Sec. 5.12, 5.25*

Sec. 5.12, 5.25

Sec. 9.2.1, 10.1.1

Sec. 8.2.1, 9.1.1

Sec. 1.5.2.1, 1.6.1.1

Sec. 9.2.1, 10.1.1

Sec. 7.12, 7.25

 

Limitations

A section weakened by the thread is used in the check of a bolt for shear, because there are many cases when the actual compliance with Sec. 12.18* of SNiP II-23-81* (Sec.15.2.9 of SP 53-102-2004, Sec. 14.2.9 of SP 16.13330, Sec. 1.12.2.9 of DBN B.2.6-163:2010, Sec. 16.2.9 of DBN B.2.6-198:2014) can not be controlled (for example, when checking the load-bearing capacity of structures in operation for compliance with DBN 362-92).

In the checks the diameter of the bolt hole is assumed to be 3 mm larger than the bolt diameter.

All the connection members (angles, gusset plates, …) are assumed to be made from the same steel.

 

The Bolted Connections dialog box contains three tabs: Type of Connection, Properties, Interaction Curves. The first one contains buttons for selecting a type of the checked connection, and a table for entering data on the forces acting in it (it is assumed that the point of application of forces is the center of mass of the section). Moreover, this tab contains a typical group of controls, General Properties, for specifying the information on steel, importance factors and service factors.

The Properties tab is used to specify information on the dimensions of the joint, the diameter and class of bolts used, the clearance (the difference between the nominal diameters of the holes and of the bolts).

The application checks the sizes being specified for compliance with requirements of SNiP, SP and DBN. The checked values are given in the table.

The Current profile group enables to specify the leg used for attachment (the wide or narrow one) in joints from unequal angles, and provides the geometric properties for all kinds of profiles.

The button image\ebx_-1116827262.jpg enables you to interactively browse the current size limitations.

You can obtain reference information on the recommended arrangement of the bolt holes within the profile area (the Setting out Lines button) for structures with rolled profiles (angles, I-beams).

The Interaction Curves tab displays interaction curves of force factors enclosing an area of the load-bearing capacity of the bolted connection. The controls are similar to those described in the Resistance of Sections section.