Installation Typicals - Fastening on Steel Threaded Studs

USAGE / STRUCTURAL DESIGN
DISCLAIMER — 2018/05/04
• This document is updated regularly — please check for an update before using
the document and always use the latest version. Please make sure to not use the
document later than the indicated expiry date (left lower corner).
• Mentioned values are ONLY reflecting capacity of the fasteners / studs themselves.
Structural analysis of support / structure is NOT in Hilti scope as Hilti is not aware of
the relevant data.
• The user has to make sure that all instructions (for tools, fasteners and auxiliary
material used) are followed strictly to achieve the required performance.
• All typicals calculations are based on the capacity that is mentioned in the
description of the fasteners — please refer to the respective detailed technical
description. Results are rounded for simplification and to harmonize metric and
imperial units.
• Assumption: calculation is based on rigid system model, without deformation of
baseplate or cantilever.
• Assumption: in applications which introduce tensile and shear load to the fastener,
the shear loads are assumed to be carried only by the top threaded stud(s) which
also carry the tensile load, this is therefore a worst-case scenario.
• Assumption: considered loadings are only the static loads of the cable tray, pipe or
other installed elements and the weight of the support itself.
• Load is always acting in the center of the cable tray, pipe or installed elements,
the dimension L1 is from that point to the fasteners plane — please see the
description in the respective examples.
• No other loads (e.g. wind load or loads due to installation / transportation) are
known and in scope of the calculation.
• Assumption: there is no load in axis of the cable tray or pipe due to thermal
expansion or other phenomena.
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Issued August 2018, expiry January 2022