Page 131 of Wood Construction Connectors 2006 Catalog by Simpson Strong-Tie
NEW! TJC37 is a versatile connector for jack trusses. Adjustable from
0 to 67.5 degree (shipped with 67.5 degree bend). Nail hole locations allow
for easy installation. Minimum nailing option provides faster installation
and lower installed cost.
MATERIAL: 16 gauge.
FINISH: Galvanized
INSTALLATION: Use all specified fasteners; see General Notes.
Can be installed filling round holes only, or filling round and triangle
holes for maximum values.
To reduce the potential for splitting, install the TJC37 with a minimum "
edge distance on the chord members (must be centered on 2x4 chords).
Position the jack truss on the inside of the bend line with the
end of the jack truss flush with the bend line.
Bend the TJC37 to the desired position (one bend cycle only).
No bevel cut required.
Applications involving attachment of TJC37 to the top chord requires
minimium 2x6 carrying member for jack truss pitches up to 7:12, and
2x8 or larger for pitches greater than 7:12.
CODES: See page 12 for Code Listing Key Chart.
Top View Installation
TJC37
Model
No.
Fasteners
Allowable Loads
Carrying
Member
1 60
0
61 67.5
TJC37 (min)
320
320
TJC37 (max)
485
340
580
4-8dx1
6-8dx1
4-8dx1
6-8dx1
425
Carried
Member
DF/SP
SPF/HF
Code
Ref.
1 60
0
61 67.5
270
270
160
405
285
485
355
Typical TJC37 Installation
1. No load duration increase allowed.
2. Allowable loads are for upward or downward direction.
3. NAILS: 8dx1 0.131" dia. x 1 long.
See page 16-17 for other nail sizes and information.
LTHMA Multiple Truss Hangers
A single-piece connector designed to carry multiple truss
members off girder trusses with 2x4 or 2x6 bottom chords.
MATERIAL: 16 gauge.
FINISH: Galvanized.
INSTALLATION: Use all specified fasteners. See General Notes. The total load must be symmetrically distributed about
the centerline to avoid eccentric loading of the connector.
Fill round holes for girder trusses with 2x4 bottom chords.
Fill round and triangle holes for girder trusses
with 2x6 bottom chords.
CODES: See page 12 for Code Listing Key Chart.
Model
No.
Header
Fasteners
Doug-Fir-Larch/So. Pine Allowable Loads
Header
Hips (total)
Jack
Uplift (133 160)
Floor (100)
Snow (115)
Roof (125/133/160)
Hip
Jack
Total
Hip
Jack
Total
Hip
Jack
Total
Hip
Jack
Total
LTHMA
1 ply 2x4
12-10dx1
6-10dx1
2-10dx1
55
20
130
485
110
1080
540
125
1205
540
125
1205
2 ply 2x4
12-10d
6-10dx1
2-10dx1
55
20
130
600
130
1330
675
150
1500
675
150
1500
1 ply 2x6
18-10dx1
6-10dx1
2-10dx1
55
20
130
635
140
1410
635
140
1410
635
140
1410
2 ply 2x6
18-10d
6-10dx1
2-10dx1
85
25
195
900
200
2000
1035
230
2300
1050
240
2340
Model
No.
Header
Fasteners
Spruce-Pine-Fir Allowable Loads
Header
Hips (total)
Jack
Uplift (133 160)
Floor (100)
Snow (115)
Roof (125/133/160)
Hip
Jack
Total
Hip
Jack
Total
Hip
Jack
Total
Hip
Jack
Total
LTHMA
1 ply 2x4
12-10dx1
6-10dx1
2-10dx1
50
10
110
440
55
935
485
65
1035
485
65
1035
2 ply 2x4
12-10d
6-10dx1
2-10dx1
50
10
110
540
70
1150
570
75
1215
570
75
1215
6, 121
1 ply 2x6
18-10dx1
6-10dx1
2-10dx1
50
10
110
570
75
1215
570
75
1215
570
75
1215
2 ply 2x6
18-10d
6-10dx1
2-10dx1
85
15
185
815
100
1730
930
125
1985
940
120
2000
Code
Ref.
Code
Ref.
6, 121
LTHMA
1. Allowable loads have been increased 33% and 60% for earthquake or wind
loading with no further increase allowed; reduce where other loads govern.
2. Hip loads are for each hip.
3. Other hip/jack load distributions are allowed if the sum of all three carried
members does not exceed the total load and the hip members are equally loaded.
4. Load distribution is 45% for each hip and 10% for jack.
5. Wind (133) is a download rating.
6. Truss chord cross-grain tension may limit allowable loads. Refer to Technical
Bulletins T-ANSITPISPF, T-ANSITPISP and T-ANSITPIDF for allowable loads
that consider ANSI/TPI 1-2002 wood member design criteria.
7. NAILS: 10d 0.148" dia. x 3" long, 10dx1 0.148" dia. x 1 long.
See page 16-17 for other nail sizes and information.
Typical LTHMA Installation
132
Plated Truss Connectors
TJC37 Jack Truss Connector
[close]