Glued-Laminated Columns AHA (Activity Hazard Analysis / Job Hazard Analysis)
Updated 2026-06-23
An Glued-Laminated Columns AHA (Activity Hazard Analysis / Job Hazard Analysis) is the plan that keeps the crew erecting glued-laminated columns safe through the heavy column rigging and erection, from the column stability and anchorage, and around the fall and connection. Glued-laminated columns erects large glulam columns — combining the heavy-column-rigging and erection hazard, the column-stability and anchorage hazard, and the fall and connection hazard. This guide walks through building a Glued-Laminated Columns AHA that names the heavy-column-rigging/ erection, column-stability/anchorage, and fall/connection hazards and assigns the rigging, stability, and fall/connection controls that hold up in the field.
Why glued-laminated columns needs its own AHA
Glued-laminated columns (glulam columns) is the erection of glulam timber columns — the large engineered-timber columns made of laminated wood layers, used as the vertical load-carrying members supporting glulam beams and heavy-timber structures. This continues the glulam pair. The defining feature is that glulam columns are large, heavy vertical members that are stood up (raised from horizontal to vertical) and set on their base/anchorage, with the specific concern that a standing column must be stable and anchored (a glulam column, once raised, must be secured/braced and anchored to its base — an inadequately braced/anchored standing column can topple). The hazards combine the heavy-column-rigging and erection (glulam columns are large and heavy — the rigging/erection hazard (heavy columns raised and set by crane — rigging, crush, struck-by, and the raising from horizontal to vertical)), the column-stability and anchorage (the standing column must be stable and anchored — the stability hazard (a raised glulam column must be braced and anchored — an unbraced/unanchored standing column can topple)), the fall and connection (erecting at height and connecting the column — the fall and connection hazards), and the tool/handling. The heavy-column-rigging/erection and the column-stability/anchorage justify a dedicated AHA.
Breaking glued-laminated columns into steps
The steps for a Glued-Laminated Columns AHA follow the erection:
- Plan the column erection (rigging, raising, stability, anchorage)
- Set up fall protection for the erection
- Rig, raise, and set the heavy glulam column (crane, crush)
- Anchor the column to its base
- Brace the column until permanently stable/connected
- Verify the column stability and anchorage
- Manage the rigging, stability, and fall hazards
- Complete
Each step carries a hazard, and the heavy-column-rigging/erection, the column-stability/anchorage, and the fall/ connection are where the most significant risks concentrate.
The hazards step by step
Heavy-column-rigging and erection
Glulam columns are large and heavy — the rigging/erection hazard (heavy columns raised and set by crane — rigging, crush, struck-by, and the raising from horizontal to vertical). The controls are safe rigging and erection of the heavy glulam columns (glulam columns are large and heavy — rigging and raising them from horizontal to vertical and setting them by crane; rated rigging, qualified crane/rigging/signaling, controlled raising and setting, keeping hands/body out of crush points, exclusion under/around the column, and tag lines to control the column), and the rigging/erection controls. The heavy-column-rigging/erection is the primary defining hazard — glulam columns are heavy, crane-raised members. (These follow the heavy-member rigging/erection fundamentals.)
Column-stability and anchorage
The standing column must be stable and anchored — the stability hazard (a raised glulam column must be braced and anchored — an unbraced/unanchored standing column can topple). The controls are anchoring and bracing the standing column (a raised glulam column is not stable on its own until it is anchored to its base and/or braced — the column must be anchored to its base/foundation and temporarily braced (guys or braces) before releasing it from the crane, since an inadequately anchored or unbraced standing column can topple over, killing the crew), and the stability/anchorage controls. The column-stability/anchorage is a defining hazard — a standing glulam column must be anchored and braced or it can topple. (These follow the column-stability fundamentals.)
Fall and connection
Erecting at height and connecting the column — the fall and connection hazards. The controls are fall protection for the at-height work (connecting the column and the beams it supports at height — fall protection), safe connection (connecting the column to its base and to the beams), and the fall/connection controls. The fall/ connection is a defining hazard. (These follow the fall-protection and connection fundamentals.)
Tool/handling
The tool and handling (tools for connections, incidental handling) carries the tool/handling hazard. The controls are safe tool use and handling, and the tool controls. (These follow the tool fundamentals.)
A simple Glued-Laminated Columns AHA structure
| Step | Hazard | Control | Standard |
|---|---|---|---|
| Plan | Topple | Plan the column erection (rigging, raising, stability, anchorage) | project |
| Fall protection | Fall | Set up fall protection for the erection | OSHA 1926.501 |
| Rig/raise/set | Crush / struck-by | Rig, raise, and set the heavy glulam column (crane, crush) | OSHA 1926.251 |
| Anchor | Topple | Anchor the column to its base | project |
| Brace | Topple | Brace the column until permanently stable/connected | project |
| Verify | Topple | Verify the column stability and anchorage | project |
Column rigging/erection control and stability/anchorage safety
A Glued-Laminated Columns AHA centers on column rigging/erection control and stability/anchorage safety. The column rigging/erection control addresses the heavy columns — controlled by safe rigging and erection of the heavy glulam columns (rated rigging, qualified crane/rigging, controlled raising and setting, crush awareness, exclusion, tag lines). The stability/anchorage safety addresses the standing column — controlled by anchoring and bracing the standing column (anchored to its base and temporarily braced before releasing from the crane), since an unanchored/unbraced column can topple. And the fall, connection, and tools get fall/connection and tool controls. An AHA built on column rigging/erection control and stability/anchorage safety, with fall/connection controls, addresses the hazards that define glued-laminated columns.
From the field: what actually goes wrong
In fourteen years across federal, heavy civil, and industrial projects, glued-laminated columns erects the large glulam timber columns that carry the vertical loads in heavy-timber structures, and its hazards parallel the glulam beams with the column-specific concern of stability and anchorage of a standing member. The heavy-column- rigging and erection hazard is a primary defining concern — glulam columns are large and heavy, and erecting them involves rigging and raising them from horizontal (as they are delivered/staged) to vertical and setting them by crane, so the work brings the rigging, crush, and struck-by hazards of a heavy crane erection, controlled by safe rigging and erection (rated rigging, qualified crane/rigging/signaling, controlled raising and setting, keeping hands and body out of crush points, exclusion zones under and around the column, and tag lines to control the column during the raise). The heavy glulam column being raised and set is a real rigging and crush hazard.
The column-stability/anchorage and the fall/connection are the other defining hazards, and the stability/anchorage is the column-specific one. On the projects I have run, a raised glulam column is not stable on its own until it is anchored and braced: the column must be anchored to its base or foundation and temporarily braced (with guys or braces) before releasing it from the crane, because an inadequately anchored or unbraced standing column can topple over — a tall, heavy column falling is catastrophic for anyone near it. So anchoring and bracing the standing column before releasing it from the crane is the critical control. And the fall/connection hazard is erecting and connecting at height (the column connections at the base and where it meets the beams — fall protection and safe connection). The tool use rounds it out. The AHA built on column rigging/erection control and stability/anchorage safety is the one that protects the column-erection crew.
The bottom line
A Glued-Laminated Columns AHA names the heavy-column-rigging/erection, the column-stability/anchorage, and the fall/connection hazards with specific controls — safe rigging and erection of the heavy glulam columns (rated rigging, qualified crane/rigging, controlled raising and setting, exclusion, tag lines), anchoring and bracing the standing column before releasing it from the crane (an unanchored/unbraced column can topple), and fall protection with safe connection. The column rigging/erection control and the stability/anchorage safety are the defining concerns. The AHA that manages both is the one that protects the crew.
Frequently asked questions
Why is glulam column rigging/erection a hazard?
Glulam columns are large and heavy, and erecting them involves rigging and raising them from horizontal to vertical and setting them by crane, so the work brings the rigging, crush, and struck-by hazards of a heavy crane erection. Controls are safe rigging and erection of the heavy glulam columns (rated rigging, qualified crane/rigging/signaling, controlled raising and setting, keeping hands/body out of crush points, exclusion under/around the column, tag lines), and the rigging/erection controls.
Why is column stability and anchorage critical?
A raised glulam column is not stable on its own until it is anchored and braced: the column must be anchored to its base/foundation and temporarily braced (with guys or braces) before releasing it from the crane, because an inadequately anchored or unbraced standing column can topple over — a tall, heavy column falling is catastrophic. Controls are anchoring and bracing the standing column (anchored to its base and temporarily braced before releasing from the crane), and the stability/anchorage controls.
What fall and connection hazards apply?
Erecting and connecting at height brings the fall hazard, and connecting the column to its base and to the beams brings the connection hazard. Controls are fall protection for the at-height work (connecting the column and beams at height), safe connection (connecting the column to its base and beams), and the fall/connection controls.
What is glued-laminated columns?
Glued-laminated columns (glulam columns) is the erection of glulam timber columns — the large engineered-timber columns made of laminated wood layers, used as the vertical load-carrying members supporting glulam beams and heavy-timber structures. Because glulam columns are large and heavy and crane-raised (rigging/crush), a standing column must be anchored/braced or it can topple, and there is at-height fall/connection work, those hazards apply.
Related AHAs and JHAs
- Glued-Laminated Beams AHA — the related glulam beams
- Glued-Laminated Construction AHA — the glulam construction fundamentals
- Parallel Strand Lumber AHA — the related PSL engineered lumber
- Wood Framing AHA — the wood-framing fundamentals
Written by Mustafa Tok, CSP, ASP, CHST — OSHA Authorized Outreach Trainer with 14+ years of international construction safety experience across federal, heavy civil, and industrial projects.