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U Bolt

Software version: 2017 - 2019i

Last updated August 2, 2019 by Tekla Support US tekla.support.us@trimble.com

United States (Imperial)
United States (Metric)

U Bolt

CATALOGuser interface for displaying or modifying information in categorized lists

For example, profile catalog and shape catalog are catalogs.

NAME: U Bolt


This component was first available in v2017. It is included in the US environment Model Templates and Custom Components folder. This custom component can also be imported and used in v2016 and v2016i.


This Custom Componentcomponent that the user creates and uses for creating model objects whose composition the user can modify as a group

creates a U bolt under the bottom flange of a beam. It also cuts holes in the bottom flange.
There are 2 options to control the sizes of the nuts and washers. The first option sizes the nut and washer profiles based on the diameter of the bolt diameter. Set the option below to "No" and then based on the bolt diameter you enter, the appropriate nut and washer profiles will be used.

A nuts_and_washers_dat file is used to control the thicknesses of the nut and washer profiles. This file is organized into 3 columns; the first is the bolt diameter column which again is the driving value. The second is the thickness of the nut, followed by the third column - the washer thickness. The washer and nut profiles are taken from the fourth and fifth columns.

To use the values defined in the nuts_and_washers_dat file, simply enter a 0" for the nut and washer thicknesses or if you want to use a different thickness, enter that value in the appropriate thickness field and that value will be used in lieu of the value in the nuts_and_washers.dat file.
The second option requires you to select the appropriate nut and washer profiles from the Profile Catalogcatalog that displays profiles and information on the profiles

In addition to the available profiles in the respective Tekla Structures environment, the user can add fixed or parametric user-defined profiles to the profile catalog. It is also possible to import profiles to the profile catalog.

. Set the option below to "Yes" and then chose the appropriate nut and washer profile. You must also enter in thickness of the nut and washer profile.

Picking order:
1.  Beam
2.  Point along beam top where location of U bolt is needed.

Most controls are self-explanatory, however there is one field that needs clarification.
A - This field can be used to set a fixed gage distance. However, if you leave this field "blank" then the value will be pulled from the beam's UDAobject property created by the user in order to widen the range of predefined object properties

User-defined attributes are used when the predefined object properties are not sufficient but more properties are needed. For example, comment, locked, and erection status are user-defined attributes.

Workable Gage.


Starting in v2017, the above Custom Component is available in all US Environment Model Templates

  • CIPcast unit type where the concrete is formed, poured, and cured in its final position

    _BasicStructural (hidden)
  • ENG_BaseTemplate (hidden)
  • PC_BasicStructural (hidden)
  • STL_DetailingTemplate*

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