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THGQ/THGQH/HTHGQ Hangers for SCL or Truss Girders Attached to Truss

THGQ/THGQH/HTHGQ

A lower-cost alternative to bolted hangers, the THGQ and THGQH hangers for multi-ply girder trusses use Simpson Strong-Tie® Strong-Drive® SDS Heavy-Duty Connector screws to provide high load capacities and easier installation compared to bolts. The Strong-Drive SDS Heavy-Duty Connector screws help transfer the load between the plies of the supporting girder when they penetrate all plies.

THGQ and THGQH models offer minimum and optional maximum fastener quantities to accommodate varying design needs. Allowable loads for various girder web member sizes provide additional installation options.

The HTHGQ is a high-load version designed to carry multi-ply trusses or composite lumber up to 5-ply girder trusses. For high load capacities and easier installation compared to bolts, the HTHGQ is designed for use with Simpson Strong-Tie Strong-Drive SDS Heavy-Duty Connector screws.

Material

  • THGQ — 7 gauge; THGQH/HTHGQ — 3 gauge

Finish

  • THGQ — galvanized; THGQH/HTHGQ — Simpson Strong-Tie® gray paint

Installation

  • Use all specified fasteners; see General Notes.
  • Can be installed filling round holes only, or filling round and triangle holes for maximum values.
  • Strong-Drive SDS Heavy-Duty Connector screws supplied for all round and triangle holes. Installation may not require use of all Strong-Drive SDS Heavy-Duty Connector screws.
  • All multiple members must be fastened together to act as a single unit.
  • The thickness of the supporting girder must be equal to or greater than the screw length. For applications where the length of the supplied screws exceeds the thickness of the supporting girder, 3" or 4 1/2" screws may be substituted for the longer length screws with no load reduction, or a shim block may be used as approved by the Designer.
  • Girders must be adequately laterally braced to prevent excessive displacement due to secondary torsional stresses (Ref ANSI/TPI 1-2014 Section 7.5.3.5).

Options

  • See Hanger Options information.
  • THGQH may be skewed 45° for the models shown.
  • For Hem-Fir or Spruce-Pine-Fir members, multiply tabulated allowable loads for the skewed THGQH by 0.86. Connector must be installed centered on girder vertical webs.

Related Literature

Load Tables

Allowable Loads for Multi-Ply Truss Girder

  1. Allowable uplift loads have been increased for wind or earthquake loading with no further increase allowed; reduce where other loads govern.
  2. Connector must be installed centered on girder vertical webs.
  3. Simpson Strong-Tie® Strong-Drive® SDS Heavy-Duty Connector screws are permitted to be installed through metal truss plates as approved by the Truss Designer, provided the requirements of ANSI/TPI 1-2014 Section 7.5.3.4 and 8.9.2 are met (pre-drilling required through the plate using a maximum of 5/32" bit).
  4. Strong-Drive SDS Heavy-Duty Connector screws that penetrate all plies of the supporting girder (screws must penetrate a minimum of 1" into the last truss ply) may also be used to transfer the load through all the plies of the supporting girder. When Strong-Drive SDS Heavy-Duty Connector screws do not penetrate all plies of the supporting girder truss, supplemental Strong-Drive SDS Heavy-Duty Connector screws at the hanger locations may be required to transfer the load to the truss plies not penetrated by the face fasteners, as determined by the Designer.
  5. The supporting girder truss must have adequate thickness to accommodate the screw length, so that the screw does not protrude out the back of the girder. 3" or 4 1/2" long Strong-Drive SDS Heavy-Duty Connector screws may be substituted for the longer Strong-Drive SDS Heavy-Duty Connector screws with no load reduction.
  6. For installations to LSL, use 1/4"x3" Strong-Drive SDS Heavy-Duty Connector screw and use the DF/SP table loads.
  7. Wind (160) is a download rating.

Allowable Loads for Heavy Multi-Ply Truss Girder

  1. Tabulated allowable loads must be selected based on duration of load as permitted by the applicable building code.
  2. The uplift loads have been increased for wind or earthquake loading with no further increase allowed. Reduce when other load durations govern.
  3. Wind (160) is a download rating.
  4. Connector must be installed centered on minimum 2x10 vertical web.
  5. A minimum 3-ply carrying member is required for the tabulated loads.
  6. Carrying truss plies must be adequately fastened together as determined by Designer.
  7. Truss chord cross-grain tension may limit allowable loads as determined by the Designer in accordance with ANSI/TPI 1-2014.
  8. Simpson Strong-Tie® Strong-Drive® SDS Heavy-Duty Connector screws are permitted to be installed through metal truss plates as approved by the Truss Designer, provided the requirements of ANSI/TPI 1-2014 Section 7.5.3.4 and 8.9.2 are met (pre-drilling required through the plate using a maximum of 5/32" bit).

Allowable Loads for Structural Composite Lumber (SCL)

See THGQ footnotes above

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
HTHGQ2-SDS No code listing. Please contact us for test data.
HTHGQ3-SDS No code listing. Please contact us for test data.
HTHGQ4-SDS No code listing. Please contact us for test data.
HTHGQ5-SDS No code listing. Please contact us for test data.
THGQSee specific model numbers for code listings.
THGQ2 No code listing. Please contact us for test data.
THGQ2-SDS3 FL11468
THGQ3 No code listing. Please contact us for test data.
THGQ3-SDS4.5 No code listing. Please contact us for test data.
THGQ3.62-SDS3 No code listing. Please contact us for test data.
THGQ5.50-SDS4.5 No code listing. Please contact us for test data.
THGQHSee specific model numbers for code listings.
THGQH2 No code listing. Please contact us for test data.
THGQH2-SDS3 FL11468
THGQH3 No code listing. Please contact us for test data.
THGQH3-SDS3 FL11468
THGQH3-SDS4.5 No code listing. Please contact us for test data.
THGQH3.62-SDS3 No code listing. Please contact us for test data.
THGQH4 No code listing. Please contact us for test data.
THGQH4-SDS3 FL11468
THGQH4-SDS6 FL11468
THGQH5.50-SDS4.5 No code listing. Please contact us for test data.
THGQH7.25-SDS6 No code listing. Please contact us for test data.

Drawings

Part Orthographic Perspective
HTHGQ2
HTHGQ2 bottom view
DWG DXF
HTHGQ2 front view
DWG DXF
HTHGQ2 left view
DWG DXF
HTHGQ2 right view
DWG DXF
HTHGQ2 top view
DWG DXF
HTHGQ2
DWG DXF
HTHGQ3
HTHGQ3 bottom view
DWG DXF
HTHGQ3 front view
DWG DXF
HTHGQ3 left view
DWG DXF
HTHGQ3 right view
DWG DXF
HTHGQ3 top view
DWG DXF
HTHGQ3
DWG DXF
HTHGQ4
HTHGQ4 bottom view
DWG DXF
HTHGQ4 front view
DWG DXF
HTHGQ4 left view
DWG DXF
HTHGQ4 right view
DWG DXF
HTHGQ4 top view
DWG DXF
HTHGQ4
DWG DXF
HTHGQ5
HTHGQ5 bottom view
DWG DXF
HTHGQ5 front view
DWG DXF
HTHGQ5 left view
DWG DXF
HTHGQ5 right view
DWG DXF
HTHGQ5 top view
DWG DXF
HTHGQ5
DWG DXF
THGQNone None
THGQ2
THGQ2
DWGDXF
THGQ2 front view
DWG DXF
THGQ2 top view
DWG DXF
THGQ2 left view
DWG DXF
THGQ2 right view
DWG DXF
None
THGQ3
THGQ3
DWGDXF
THGQ3 front view
DWG DXF
THGQ3 top view
DWG DXF
THGQ3 left view
DWG DXF
THGQ3 right view
DWG DXF
None
THGQHNone None
THGQH2
THGQH2
DWGDXF
THGQH2 front view
DWG DXF
THGQH2 top view
DWG DXF
THGQH2 left view
DWG DXF
THGQH2 right view
DWG DXF
None
THGQH3
THGQH3
DWGDXF
THGQH3 front view
DWG DXF
THGQH3 top view
DWG DXF
THGQH3 left view
DWG DXF
THGQH3 right view
DWG DXF
None
THGQH4
THGQH4
DWGDXF
THGQH4 front view
DWG DXF
THGQH4 top view
DWG DXF
THGQH4 left view
DWG DXF
THGQH4 right view
DWG DXF
None