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HTHMQ Heavy Multiple-Truss Hanger

HTHMQ

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The HTHMQ is a versatile, high-capacity truss hanger designed for various lumber types and multiple-ply trusses. The truss hanger accommodates a greater range of structural designs while accommodating right- or left-hand hips (at 30°–60° skews), which can be used for terminal hips with or without the center common jack. The HTHMQ can accommodate various widths of lumber.

Key Features

  • Available in various stirrup widths to accommodate various lumber types and multiple-ply trusses
  • Installed with Strong-Drive® SDS Heavy-Duty Connector screws that eliminate the inconvenience of bolted installation
  • Enables 2–3 member connection for a broader range of structural designs

Material

  • Back plate — 3 gauge; stirrup — 7 gauge

Finish

  • Simpson Strong-Tie gray paint

Installation

  • Use all specified fasteners; see General Notes.
  • Strong-Drive SDS Heavy-Duty Connector screws supplied with connector.
  • All multiple members must be fastened together to act as a single unit.
  • Shall be attached to a minimum double girder truss to allow for required minimum screw penetration. See footnote 5.
  • 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).
  • See Image Gallery for different installation options.

Related Literature

Wood Construction Connectors 2021-2023
C-C-2021
A catalog including new product information as well as any applicable specification and installation instructions for wood-to-wood and wood-to-concrete structural connectors.
Catalog
Conectores para la construcción con madera 2019–2020
C-C-2019SP
El catálogo incluye información sobre nuevos productos, así como especificaciones e instrucciones de instalación aplicables para conectores estructurales de madera a madera y de madera a concreto.
Catalog

Load Tables

HTHMQ Heavy Multiple-Truss Hanger Load Table
  1. Tabulated allowable loads must be selected based on duration of load as permitted by the applicable building code.
  2. Uplift loads have been increased for earthquake or wind loading with no further increase allowed. Reduce where other loads govern.
  3. Specify W1 where applicable and Hip Skew Angle.
  4. Connector must be installed centered on minimum 2x8 vertical web.
  5. A minimum two-ply carrying member is required for the tabulated loads.
  6. Carrying truss plies must be adequately fastened together as determined by the designer.
  7. Truss chord cross-grain tension may limit allowable loads in accordance with ANSI/TPI 1-2014. Simpson Strong-Tie® Connector Selector™ software includes the evaluation of cross-grain tension in its hanger allowable loads. For additional information, contact Simpson Strong-Tie.
  8. Tabulated allowable loads for three-member configurations assume that each hip carries 40% of the total load and the jack carries 20% of the total load. Tabulated allowable loads for single hip-jack configurations assume that 75% of the total load is distributed to the hip and 25% to the jack.
  9. Strong-Drive® SDS Heavy-Duty Connector screws may be installed through metal truss plates as approved by the truss designer, provided the requirements of ANSI/TPI 1-2014, Sections 7.5.3.4 and 8.9.2 are met (predrilling required through the plate using a 5/32" bit maximum).
  10. 1/4" x 2 1/2" Strong-Drive SDS Heavy-Duty Connector screws may be substituted for the 1/4" x 3" SDS screw provided with the HTHMQ with no load reduction. Back-to-back installations require a three-ply minimum girder.

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT

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