Simpson Strong-Tie MCT1.9X15 - Mass Timber Column Tie 1.9x15

The MCT mass timber column tie connects two columns together while allowing the vertical download to be transferred by column-to-column bearing. The MCT can be used on a wide variety of column sizes and is compatible with the Simpson Strong-Tie^® line of concealed beam hangers (CBH^™, ACBH^™, SCBH^™, HSKP^™), making it ideal for use in post-and-beam style construction.

Key Features

• Concealed connection for architectural aesthetics and fire protection
• Universal design allows the same connector to be used on wide range of column sizes
• Simple routing for CNC fabrication of columns
• Integrated lifting hole with tested lifting load values
• Crosshair marks at centerlines of pipe to aid installation
• Recommended for use at column-to-foundation connections in any Seismic Design Category (See L-C-MCBDRIFT)

Material

• Steel

Finish

• Electrogalvanized

Installation

Glulam Fabrication Notes:

1. It is recommended to use CNC fabrication equipment to cut the glulam column, mill the column end, and drill fastener holes. Accurate fabrication with hand tools is possible, but extra care must be taken to ensure precision.
2. The column ends must be cut level to ensure proper bearing between the columns.
3. Dowel hole and end mill locations must be located on the true centerlines of the glulam (+/- 1/32"). Dimensioning off of one edge can lead to mislocation errors, as the true width or depth of a glulam column can vary from the theoretical size. Refer to ANSI A190.1 for dimensional tolerances for the manufacture of glulam members. Deviating from the centerline more than 1/32" in either direction can lead to fit-up issues, as the connector hole oversize for the fasteners is 1/16".
4. To reduce the likelihood of the drill bit wandering at wider columns, counterboring can be used to reduce the depth of drilling required for the dowel or bolt holes. Additionally, drilling from both sides of the column can help mitigate wander and help ensure proper hole alignment.

MCT Installation Notes:

1. Insert the MCT pipe into the end of a routed column. Align the pipe midpoint mark with the end of the column and align the dowel/bolt hole centerline mark with the holes in the glulam.
2. Install tight-fit dowels or bolts to connect the lower half of the MCT to the top of the column.
3. The user can attach to the 13/16" lifting hole in the connector using a long-reach shackle or other rigging device to tilt and lift the column into position. When using the MCT to lift a column, the user must ensure that the pins or bolts between the MCT and the column are adequately secured.
4. Set the column and attach the bottom to the support below.  If the support connection uses MCT, MCB^™, or MCBS^™, install tight-fit dowels or bolts to complete the connection.
5. After setting the beams and floor panels of the next level, the column above can be lowered down onto the MCT pipe and the upper half of the MCT connection can be completed using tight-fit dowels or bolts.

Options

• Fasteners: Dowels or bolts with F_y = 36 ksi min. and F_u = 60 ksi min. Fasteners not included with the connector. 1/2"-diameter x 4-3/4"-long mechanically galvanized dowels are available (Model No. CJTPL).
• MCTPLX configurable 20-gauge steel plate (G90) is available for increased end-to-end bearing capacity. Specifier provides “W” and “L” dimensions of the plate (6" minimum, 18" maximum).