Installation Guide

Columns
Installation Instructions for the Lally Lock
Beam Plate and Adjustable Base Set Combination
ICC Tested Columns, Report Number 94-53
International Residential Code (IRC)
Column Load Table
3 1/2” 4” 3 1/2” 4”
6-0 16,500# 21,300# 31.0 kips 40.0 kips
6-6 15,850# 20,650# 29.8 kips 38.8 kips
7-0 15,200# 20,000# 28.7 kips 37.7 kips
7-3 14,900# 19,675# 28.1 kips 37.0 kips
7-4 N/A 19,567# N/A 36.8 kips
7-6 14,600# 19,350# 27.5 kips 36.4 kips
7-9 14,300# 19,025# 26.9 kips 35.8 kips
8-0 14,000# 18,700# 26.3 kips 35.2 kips
8-3 13,650# 18,350# 25.6 kips 34.5 kips
8-6 13,300# 18,000# 25.0 kips 33.9 kips
8-9 12,950# 17,650# 24.4 kips 33.2 kips
9-0 12,600# 17,300# 23.8 kips 32.6 kips
9-3 12,275# 16,925# 23.1 kips 31.9 kips
9-6 11,950# 16,550# 22.5 kips 31.2 kips
9-9 11,625# 16,225# 21.9 kips 30.5 kips
10-0 11,300# 15,800# 21.3 kips 29.8 kips
11-0 10,000# 14,400# 18.7 kips 27.1 kips
12-0 8,700# 12,900# 16.4 kips 24.3 kips
14-0 N/A 10,200# N/A 19.2 kips
Dean Column
Safe Load
Ultimate Load: The specific load that a structure, member or part must
withstand without failure.
Safe Load: A load determined by using a safety factor.
Safety Factor: A factor that engineers use to allow for the failure stress or
stresses assumed to exist in a structure or a member. It provides a margin of
error in the strength, rigidity, deformation and endurance of a structure or its
component part to compensated for irregularities in structural materials and
workmanship, uncertainties involved in mathematical analysis and stress
distribution, service deterioration and other unevaluated conditions.
Dead Load: A static load due to the weight of the structure.
Live Load: A Dynamic load (such as traffic) that is applied to a structure
suddenly or that is accompanied by vibration, oscillation, or other conditions
that affects its intensity.
Kips: A unit of weight (equal to 1,000 pounds) that is used to express
deadweight loads.
Dean Column
Ultimate Load
Dean lightweight concrete-filled columns are made from 16 gauge tubular steel
and are available in either 3 1/2” or 4” outside diameter. An embedded fastening unit
which includes, a 6” anchoring bolt threaded into a 1 1/4” coupling nut and steel disc
with a 9/16” hole, is welded to the inside of the steel tube. The columns are available in
lengths from 6 feet to 14 feet. Longer or shorter lengths are available upon request. The
steel tubing is manufactured from low carbon steel complying with the requirements of
ASTM A513 with a yield strength of 32,000 psi and ultimate strength of 45,000 psi.
The tube is filled with concrete having as minimum 28 day compressive strength of 3,000
psi. The columns are then painted with one coat of gray primer.
R502.9 Fastening
Floor framing shall be nailed in accordance with Table R602.3(1). Where posts and beam or girder
construction is used to support floor framing, positive connections shall be provided to ensure against
uplift and lateral displacement.
The columns shall be restrained to prevent lateral displacement at the bottom end. Wood columns
shall not be less in nominal size than 4 inches by 4 inches (120 mm by 102 mm) and steel columns
shall not be less than 3-inch-diameter (76 mm) standard pipe or approved equivalent.
R407.3 Structural
Requirements
A continuous load path shall be designed to transmit the uplift forces from the rafter or truss ties to
the foundation.
R802.11.1 Uplift
Resistance
• Place your beam plate in the location where the
column will be installed. Screw in two screws in the
small portion of the keyholes, leaving a 1/16” gap
between the plate and screw head.
• Slide plate off the two screws and screw the plate
onto the embedded fastening unit in the column.
• Screw in the (4) 3 1/2” adjustment screws, 3/8” of an
inch, into the base plate.
• Place the base plate on the end of the column, make
sure the counter sunk holes are facing out. Align the
beam and base plates so they are square. Using a
3/16” concrete drill bit, drill two holes 2 1/4” deep in
the center of the two counter sunk holes on the
bottom side of the base plate.
• Using the supplied Phillips head screws, fasten the
screws into the two holes you just made.
• Use a pry bar or any lever, lift the column up to the
beam where you fastened the two screws.
• Locate the screws in the large portion of the
keyhole. Slide the column over, locking the plate into
place. Tighten the two screws then fasten the last
two screws in the round holes in the plate.
• Place the 1/4” bearing plate on the footing under the
column. Loosely tighten the two adjustment screws
into the 5/8” dimples. Use a level and plum the
column.
• Once the column is plum, use a 3/16” concrete drill
bit and drill (4) 2 1/4” deep holes in each of the small
sections of the keyholes. Fasten with the (4) hex
head screws.
• Firmly tighten the adjustment screws in the 5/8”
dimples. Once those are tightened screw down until
you feel them hit the footing. Do not over tighten
these screws.
• Fill in the gap between the bottom of base plate and
bearing plate. If you are using this for new construc-
tion, the 4” slab will fill the gap. If you are using this
for a remodel, box out the plates and fill with grout.
The concrete or grout must be at least 3,000 psi.