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META/HETA/HHETA/HETAL/DETAL/TSS Embedded Truss Anchors and Truss Seat Snap-In

META/HETA/HHETA/HETAL/DETAL/TSS

Girder Tiedowns for Plated Truss

This product's information may differ depending on the category of use. You are currently viewing details related to Girder Tiedowns for Plated Truss. You can also view product information related to the categories of: Girder Tiedowns for Masonry, Lateral Load Transfer - Masonry, Truss-to-Wall Connections

The embedded truss anchor series provides an engineered method to properly attach roof trusses to concrete and masonry walls. The products are designed with staggered nail patterns for greater uplift resistance. Information regarding the use of two anchors on single- and multi-ply trusses is included.

The TSS, a companion product of the META, provides a moisture barrier between the concrete and truss. The preassembled unit is riveted with no height adjustment.

The DETAL20 is a high capacity embedded truss anchor for attachment of single-ply trusses to concrete and masonry walls. It combines dual embedded anchors with a structural moisture-barrier seat that is partially embedded in the concrete or grout. This seat serves to protect the truss and also provides additional lateral and uplift capacity. The embedded anchors are pre-attached to the moisture barrier through slots that allow for a slight amount of adjustability, providing flexibility during installation to avoid rebar. The moisture-barrier seat includes tabs at each end for optional attachment to the form board in concrete tie-beam applications.

Material

HHETA–14 gauge; HETA–16 gauge; HETAL–strap 16 gauge, truss seat 18 gauge; META–18 gauge; TSS–22 gauge; DETAL–16 gauge (Barrier–18 gauge). HETA20 now available in stainless steel.

Finish

Galvanized. Some products available in ZMAX® coating. See Corrosion Information.

Installation

  • Use all specified fasteners. See General Notes.
  • The META, HETA and HHETA are embedded 4" into a 6" min. concrete beam or 8" nominal grouted block wall; HETAL is embedded 5 1/16"; DETAL is embedded 4 1/2".
  • The DETAL20 is installed centered and flush on top of an 8" masonry bond beam or concrete tie beam. The moisture barrier seat bears on masonry face shell or concrete tie beam form boards; the two flanges embed into grout or concrete. The two embedded anchors shall be installed vertically into grout or concrete.
  • The TSS moisture barrier may be preattached to the truss using 6d commons.
  • For mislocated truss anchors which are greater than 1/8" but less than 1 1/2" from the face of the truss, a shim must be provided. Shim design by Truss Engineer. When gap is greater than 1 1/2", install new anchors.
  • In double embedded anchor installations, do not install fasteners where the straps overlap when wrapped over the truss heel.
  • View step-by-step installation instructions in the Installer's Pocket Guide (S-C-INSTALL).

Related Literature

Product Information Tables

Model table

Load Tables

Single Embedded Anchor Installation

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

Typical META Installed with TSS
Typical Installation with two METAs
  1. Loads have been increased for wind or seismic loading. Reduce where other loads govern.
  2. Minimum f'c = 2500 psi. Minimum f'm = 1500 psi.
  3. For simultaneous loads in more than one direction, the connector must be evaluated as described in under Instructions to the Designer.
  4. Five nails must be installed into the truss seat of the HETAL.
  5. Parallel-to-wall load towards face of HETAL is 1975 lbs.
  6. It is acceptable to use a reduced number of fasteners provided that there is a reduction in uplift load capacity. See example. Lateral loads do not apply when fewer than 7 fasteners are used with the HETA and HHETA anchors or less than 6-16d or 7-10dx1 1/2" fasteners are used with the META anchor.
  7. The HHETA allowable F1 load can be increased to 435 lbs. if the strap is wrapped over the truss and a minimum of 12 nails are installed.
  8. Minimum spacing for multiple anchor installation is 2 times the embedment depth for full load. See Double Embedded Anchor Installation table for loads on closer spaced anchors.
  9. Minimum edge distance for HETA/META is 1 1/2" for concrete and 2" for masonry.
  10. NAILS: 16d = 0.162" dia. x 3 1/2" long, 10dx1 1/2 = 0.148" dia. x 1 1/2" long. See other nail sizes and information.

Double Embedded Anchor Installation

  1. Loads include a 60% load duration increase on the fasteners for wind or seismic loading.
  2. Minimum f'c = 2500 psi. Minimum f'm = 1500 psi.
  3. For simultaneous loads in more than one direction, the connector must be evaluated as described in Instructions to the Designer.
  4. Install with spoons facing outward and straps spaced no more than 1/8" wider than the truss width.
  5. The DETAL20 requires 6-10dx1 1/2" nails in the truss seat and 6-10dx1 1/2" nails into each strap. For all other models, install half of the required fasteners in each strap.
  6. Lateral loads for META, HETA and HHETA anchors apply only to 2- or 3-ply applications with anchors spaced a minimum of 3" apart. For single-ply applications use lateral loads from the Single Embedded Anchor Installation table. DETAL lateral loads apply for single-ply application.
  7. F1 lateral loads listed may cause an additional 1/16" deflection beyond the standard 1/8" limit where the
    straps are installed not wrapped over the heel as shown.
  8. Two HHETA anchors may be installed in a concrete tie beam on a 2- or 3- ply truss with 2 fewer nail for an allowable uplift load of 3050 lbs.
  9. Noted F1 lateral loads for the DETAL20 may cause an additional 1/32" deflection beyond the standard 1/8" limit.
  10. Single ply trusses may use either 10dx1 1/2" or 16d nails with allowable loads limited to the single ply column. 2- or 3- ply trusses shall use 16d nails.
  11. NAILS: 16d = 0.162" dia. x 3 1/2" long, 10dx1 1/2 = 0.148" dia. x 1 1/2" long. See other nail sizes and information.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
DETALSee specific model numbers for code listings.
DETAL20 FL11473
HETASee specific model numbers for code listings.
HETA12 FL11473
HETA16 FL11473
HETA20 FL11473
HETA20Z
HETA24 FL11473
HETA40 FL11473
HETALSee specific model numbers for code listings.
HETAL12 FL11473
HETAL16 FL11473
HETAL20 FL11473
HETAL20Z
HHETASee specific model numbers for code listings.
HHETA16 FL11473
HHETA20 FL11473
HHETA24 FL11473
HHETA40 FL11473
METASee specific model numbers for code listings.
META12 FL11473
META14 FL11473
META16 FL11473
META18 FL11473
META20 FL11473
META20Z
META22 FL11473
META24 FL11473
META40 FL11473
TSS No code listing. Please contact us for test data.
TSS-2 No code listing. Please contact us for test data.
TSS2-2 No code listing. Please contact us for test data.
TSS4 No code listing. Please contact us for test data.

Drawings

Part Orthographic Perspective
DETAL
DETAL-01
DWGDXF
DETAL-01 front view
DWG DXF
DETAL-01 left view
DWG DXF
DETAL-01 right view
DWG DXF
DETAL-01 top view
DWG DXF
DETAL
DWG DXF
DETAL20
DETAL20
DWGDXF
DETAL20-01
DWGDXF
DETAL20-01 front view
DWG DXF
DETAL20 front view
DWG DXF
DETAL20-01 left view
DWG DXF
DETAL20 left view
DWG DXF
DETAL20-01 right view
DWG DXF
DETAL20 right view
DWG DXF
High Wind-Resistant Construction D18: Embedded Truss/Rafter To Masonry/Concrete
DWG DXF
HETANone
High Wind-Resistant Construction D13: I-Joists to Masonry/Concrete: META/HETA Installation into CMU, Bond Beam or Concrete Tie Beam
DWG DXF
Floor to Floor Connections
DWG DXF
HETA12None
High Wind-Resistant Construction D112: Gable End to Wall Framing
DWG DXF
HETA16
HETA16
DWGDXF
HETA16 front view
DWG DXF
HETA16 left view
DWG DXF
HETA16 right view
DWG DXF
HETA16 top view
DWG DXF
High Wind-Resistant Construction D47: Floor to Masonry/Concrete
DWG DXF
High Wind-Resistant Construction D48: Floor to Masonry/Concrete
DWG DXF
HETA20
HETA20
DWGDXF
HETA20 front view
DWG DXF
HETA20 right view
DWG DXF
HETA20 top view
DWG DXF
High Wind-Resistant Construction D112: Gable End to Wall Framing
DWG DXF
High Wind-Resistant Construction D16: Embedded Truss/Rafter To Masonry/Concrete
DWG DXF
Girder/Truss to Concrete Connections 2
DWG DXF
HETA20
DWG DXF
HETA20SS
HETA20SS front view
DWG DXF
HETA20SS left view
DWG DXF
HETA20SS top view
DWG DXF
HETA20SS
DWG DXF
HETA20ZNone None
HETA24None None
HETA40None
High Wind-Resistant Construction D50: Floor to Masonry/Concrete
DWG DXF
HETALNone None
HETAL12None None
HETAL16
HETAL16
DWGDXF
HETAL16 front view
DWG DXF
HETAL16 right view
DWG DXF
HETAL16 top view
DWG DXF
None
HETAL20
HETAL20
DWGDXF
HETAL20 front view
DWG DXF
HETAL20 left view
DWG DXF
HETAL20 right view
DWG DXF
HETAL20 top view
DWG DXF
HETAL20
DWG DXF
HETAL20ZNone None
HHETANone None
HHETA16None None
HHETA20None None
HHETA24None None
HHETA40None None
METANone
High Wind-Resistant Construction D15: I-Joists to Masonry/Concrete: META/HETA Installation into CMU, Bond Beam or Concrete Tie Beam Installation into CMU, Bond Beam or Concrete Tie Beam Installation into CMU, Bond Beam or Concrete Tie Beam
DWG DXF
High Wind-Resistant Construction D17: Embedded Truss/Rafter To Masonry/Concrete
DWG DXF
High Wind-Resistant Construction D34: Truss/Rafter Hip To Single Top Plate
DWG DXF
Floor to Floor Connections
DWG DXF
META12None None
META14None None
META16None None
META18None None
META20None
High Wind-Resistant Construction D16: Embedded Truss/Rafter To Masonry/Concrete
DWG DXF
META20ZNone None
META22None None
META24None None
META40None None
TSSNone
High Wind-Resistant Construction D14: Embedded Truss/Rafter To Masonry/Concrete
DWG DXF
TSS-2None None
TSS2-2None None
TSS4None None