Specification

C-2013 © 2013 SIMPSON STRONG-TIE COMPANY INC. PRINTED 12/12
166
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)
FINISH: Galvanized. Some products available in ZMAX
®
coating; see Corrosion Information, page 14-15.
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.
CODES: See page 13 for Code Reference Key Chart.
4"
Embedment
HETA20
(HHETA similar)
5¹⁄₁₆"
Embedment
HETAL
6" Min.
See note 9
for edge
distance
Typical HETA20
Installation
4"
Embedment
META with TSS
Model
No.
W
TSS2 1
3
⁄ 4
TSS2-2 3
1
⁄ 8
TSS4 3
5
⁄ 8
6" Min.
Typical META
Installed with TSS
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.
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 Note e,
page 18 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 on page 175. 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 F
1
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 on page 167 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 page 22-23 for other nail sizes and information.
Model
No.
H
SP Uplift Load 160 Load Duration Increase
Lateral Loads
(160)
Code
Ref.
10dx1
1
⁄ 2 16d
Quantity Load Quantity Load F
1
F
2
META12 8 7 1450 6 1450 340 725
F27
META14 Discontinued – See META12 and META16
META16 12 7 1450 6 1450 340 725
META18 14 7 1450 6 1450 340 725
META20
6
16 7 1450 6 1450 340 725
META22 18 7 1450 6 1450 340 725
META24 20 7 1450 6 1450 340 725
META40 36 7 1450 6 1450 340 725
HETA12 8 7 1520 7 1780 340 725
HETA16 12 9 1810 8 1810 340 725
HETA20
6
16 9 1810 8 1810 340 725
HETA24 20 9 1810 8 1810 340 725
HETA40 36 9 1810 8 1810 340 725
HHETA12 8 7 1565 7 1820 340 815
HHETA16 12 10 2235 9 2235 340
7
815
HHETA20
6
16 10 2235 9 2235 340
7
815
HHETA24 20 10 2235 9 2235 340
7
815
HHETA40 36 10 2235 9 2235 340
7
815
HETAL12 7 10
4
1085 10
4
1270 415
5
1100
HETAL16 11 14
4
1810 13
4
1810 415
5
1100
HETAL20 15 14
4
1810 13
4
1810 415
5
1100
Single Embedded Anchor Installation
#5 Rebar
(min.)
Straps may be installed straight
or wrapped over to achieve listed loads
Typical DETAL
Installation
DETAL20
U.S. Patent 7,987,636
13
1
/
4
"
4
1
/
2
"
Embedment
7
5
/
8
"
2
1
/
2
"
1
1
/
2
"
Moisture barrier
not shown (Typ.)
Masonry Connectors
META/HETA/HHETA/HETAL/DETAL/TSS Embedded Truss Anchors and Truss Seat Snap-In
Masonry Connectors