First, describe the work and worksite
A repair crew will replace one damaged solid-sawn floor joist in an unoccupied building bay after the structural survey, engineered temporary support, load isolation and removal plan are released. The crew uses a protected working platform below the floor. This fictional learning example describes planned controls; it records no actual inspection or work authorization.
- The specific joist, damage extent, utilities and suspect-material status are established before disturbance.
- Installed temporary supports carry the identified loads through a verified load path and remain under the engineer’s release plan.
- This excludes shoring design, hazardous-material abatement, occupied-area work, engineered I-joist repair and unplanned removal of adjacent framing.
Questions before work
- What records release the temporary support and load-isolated bay for this exact removal?
- How will the damaged joist be supported and controlled as its attachments are removed?
- Who accepts the new member and authorizes any later temporary-support removal?
Build the analysis one step at a time
What will the worker do? How could someone be harmed? What prevents or reduces that exposure? Who checks the control, and when?
1. Confirm the removal release
Hazard: A hidden load, unsupported structure or live service can create collapse or contact hazards.
Control: Repair lead checks the structural survey, engineered repair and removal plan, installed support release and utility isolation. Confirm material-clearance records and the unoccupied boundary; do not start from an assumption that the damaged joist carries no load.
Verification: Lead verifies the current records apply to this joist and bay before disturbance.
Why this belongs in the analysis: This analysis starts after support design and installation, not instead of them.
2. Protect access and surrounding framing
Hazard: A worker can fall through an opened floor or disturb a shore while setting up access.
Control: Provide the specified protected work platform and barriers above and below. Keep shore bases, braces and access paths clear of carts and debris; maintain floor-opening protection as removal advances and prevent adjacent loads from entering the bay.
Verification: Lead checks the support boundary and work platform before tools are staged.
Why this belongs in the analysis: Temporary supports need protection from ordinary movement as well as load control.
3. Support the damaged member
Hazard: A partly detached joist or attached ceiling material can fall unexpectedly.
Control: Use the removal plan’s independent member support and debris containment. Identify attached components and the controlled lower route, keep workers outside the fall path and agree one removal leader; do not use a required structural shore as an improvised debris support.
Verification: Removal lead verifies member control before the first attachment is released.
Why this belongs in the analysis: Supporting the floor does not by itself control the piece being removed.
4. Remove in the released sequence
Hazard: Cutting or prying the wrong attachment can release stored force or damage retained framing.
Control: Use the plan’s limited removal method and inspected tools, with required dust and contact controls. Maintain member support through final detachment; stop for unexpected binding, movement or concealed connections. Do not extend cuts or remove adjacent members to force progress.
Verification: Removal lead compares each release with the plan and monitors retained framing.
Why this belongs in the analysis: Unexpected resistance is information about the load path, not a cue for greater force.
5. Install the identified replacement
Hazard: Wrong grade, bearing or connections can leave the floor unsafe despite a new-looking joist.
Control: Place the drawing-specified replacement using controlled handling. Complete its bearings, connectors and restraint under the repair detail without unapproved notches or holes. Keep temporary support and load isolation until the designated inspection and acceptance are complete.
Verification: Repair lead records member identity and actual connection findings for acceptance.
Why this belongs in the analysis: A replacement’s appearance does not establish its structural equivalence.
6. Close out without removing shores
Hazard: Premature loading or support removal can cause failure after the crew leaves.
Control: Collect contained debris, restore specified protection and transfer repair status and unresolved items. Leave shores and loading restrictions in place until the engineer’s separate removal and reload release; this example ends before that operation.
Verification: Receiving lead confirms written restrictions and the person controlling the later release.
Why this belongs in the analysis: Repair acceptance and temporary-support removal require their own evidence.
What does a useful control look like?
| Needs improvement | More useful for this scenario |
|---|---|
| Work carefully and wear PPE. | Use the removal plan’s independent member support and debris containment. Identify attached components and the controlled lower route, keep workers outside the fall path and agree one removal leader; do not use a required structural shore as an improvised debris support. |
| Check that everything is ready. | Repair lead checks the structural survey, engineered repair and removal plan, installed support release and utility isolation. Confirm material-clearance records and the unoccupied boundary; do not start from an assumption that the damaged joist carries no load. |
Decisions that change the analysis
Can the temporary supports come out when the new joist is fastened?
No. Obtain the designated engineer’s release for the actual repaired load path and follow the separately planned support-removal sequence. This teaching example records no inspection and authorizes neither shore removal nor occupancy.
What must the crew record for actual use?
Identify the actual equipment and work boundaries, responsible people, applicable criteria, inspection findings and open actions. Resolve changes with affected crews and obtain required project authorization before work.
Agree when the crew will pause
- A service, suspect material, hidden connection or additional damage is uncovered.
- A shore shifts, framing moves or the member responds unexpectedly during removal.
- The replacement detail, acceptance record or loading restriction is unresolved.
After a pause, correct the condition, reassess the work, and obtain required authorization before restarting. Keep unresolved actions visible.
Download the worked example and free template
No account or paid membership required. The worked example contains planned controls. The blank template is for your own work; neither includes fabricated inspection results, signatures or approval.
Your editable working copy
Build and download your draft
Start blank or load the learning example. Replace its assumptions with your actual conditions and involve the people doing the work. Your entries stay in this browser tab; download a copy before leaving or refreshing.
1. Describe your work and site
2. Work through each task
Describe an observable step, how someone could be harmed, and the control that acts on that hazard. Identify who checks it and what evidence is needed.
3. Record changes, checks, and open actions
Walk the work area, review with the crew, and resolve missing controls. Follow the required approval process. This tool does not judge completeness, verify signatures or authorize work.
Open the downloaded file in a browser, then use Print → Save as PDF for a printable copy.
Training needs to confirm
- The released joist-specific removal and repair sequence, support monitoring and authority to pause for unexpected conditions.
- Applicable tool, dust, hazardous-material awareness and utility-isolation instruction for the actual materials and services.
Confirm applicable qualifications, task instruction and actual training evidence for the people assigned. Related toolbox talks support crew discussion; they do not establish competence.
Common questions
Can this example be used as a JSA?
Adapt its Task | Hazard | Control analysis to the employer’s format and actual conditions. The example is a teaching aid, not evidence that controls were checked.
What changes if the project requires an AHA?
Use the governing AHA format, risk method, supporting records and acceptance process. The published formwork AHA demonstrates that additional structure; changing a JHA title does not supply it.
Are these resources part of a paid course?
This walkthrough, browser draft builder and downloads are free public resources, separate from Academy course enrollment.
References and source note
- OSHA 1926.850 Preparatory operations
- Simpson Strong-Tie Product installer guide
- OSHA 1926.300 Hand and power tools
Original instructional scenario with planned controls. Primary references support hazard planning. Use actual equipment and product instructions, project design and employer requirements to establish field criteria. Use actual equipment instructions and site requirements alongside these references. Reference review: October 9, 2026.