HTHMQ Heavy Multiple Truss Hangers

163a-2015

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 carry 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.

Features:

  • Available in various stirrup widths to accommodate various lumber types and multiple ply trusses
  • Installed with Simpson Strong-Tie® 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 for all round holes.
  • 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 1-2007 Section 7.5.3.5).

 

  • Tabulated allowable loads must be selected based on duration of load as permitted by the applicable building code.
  • The uplift loads have been increased for wind or earthquake loading with no further increase allowed. Reduce when other load durations govern.
  • Specify W1 where applicable and Hip Skew Angle.
  • Connector must be installed centered on minimum 2×8 vertical web.
  • A minimum 2-ply carrying member is required for the tabulated loads.
  • Carrying truss plies must be adequately fastened together as determined by Designer.
  • Truss chord cross-grain tension may limit allowable loads as determined by the Designer in accordance with ANSI/TPI 1-2007.
  • 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.
  • Simpson Strong-Tie Strong-Drive® screws are permitted to be installed through metal truss plates as approved by the Truss Designer, provided the requirements of ANSI/TPI 1-2007 Section 7.5.3.4 and 8.9.2 are met (pre-drilling required through the plate using a maximum of 5/32″ bit).
  • 1/4″ x 2 1/2″ Strong-Drive SDS Heavy-Duty Connector screw may be substituted for the 1/4″ x 3″ Strong-Drive SDS Heavy-Duty Connector screw provided with the HTHMQ with no load reduction. Back-to-back installations require a 3-ply minimum girder.

 

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