This deliverable is not counted toward your grade
Project Start and Technical Implementation (site, data and investigation) pages are required practice but are not counted toward your final grade. Your engineering grade comes from Chapter 4 and Chapter 5.
Structural Inspection
Students conduct and document a structural field inspection, computing an as-built demand estimate to compare against the original design capacity.
Section progress
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Field & Laboratory · Plan, execute and document field and laboratory data collection to a defensible quality standard.
Deliverable: Structural inspection report with as-built capacity recalculation.
How to complete this section
Do this next: Read the Structural Inspection lecture and the worked example so you know what "Structural inspection report with as-built capacity recalculation." has to contain.
Not sure how to start or how much depth is expected? Read the fully written model example for this deliverable first — it shows the structure, tables and level of justification your advisor grades against.
Site Investigation Lab — what this workspace teaches
Plan, execute and document field and laboratory data collection to a defensible quality standard.
- Planning a subsurface, structural or traffic field investigation
- Instrumentation selection, resolution, accuracy and calibration records
- GPS/GNSS positioning: datums, projections, RTK vs. handheld accuracy
- GIS data capture, attribute schemas and coordinate metadata
- Land surveying: traverses, levelling, closure and error adjustment
- Sampling strategy: representative sampling, spacing, depth intervals, replicates
- ASTM/AASHTO laboratory testing procedures and reporting requirements
- Chain of custody, sample labelling and preservation
- QA/QC: duplicates, blanks, repeatability and data validation rules
End-of-term milestones
- Tuesday, November 17, 2026 — Poster printed and ready. 36 in × 48 in poster finalized and printed one week before the November 24 showcase.
- Wednesday, November 18, 2026 — Final document package uploaded for scoring. Chapters 4–5, calculation package, drawings and appendices uploaded in the app for advisor scoring.
- Wednesday, November 18, 2026 — Poster presentation to faculty and industry. Wednesday poster session — printed 36 in × 48 in poster presented in person; industry reviewers score communication and impact.
- Wednesday, November 25, 2026 — Oral presentation and defense (scored). Scored oral presentation and defense held on Wednesday, November 25.
Structural Inspection
Students conduct and document a structural field inspection, computing an as-built demand estimate to compare against the original design capacity.
Section B
Engineering story
A real project situation that frames this module
A structural engineering team hits structural inspection in week 3, with the calculation package and framing drawings already promised to the owner. Students conduct and document a structural field inspection, computing an as-built demand estimate to compare against the original design capacity. The reviewer starts at the end and works backwards, and the chain breaks at visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion).
Recomputing capacity using as-designed dimensions instead of field-measured as-built dimensions. Because nondestructive evaluation methods, the error does not stay local: it is carried into the data foundation every later calculation silently depends on, and every downstream product inherits it before anyone notices.
Building occupants, erection crews and the structural engineer of record carry the consequence. On this module specifically, the exposure runs through estimating as-built member capacity from field-measured dimensions and material condition, and the cost of correction rises every week the calculation package and framing drawings moves closer to issue.
Decisions the engineer must make
- What record establishes visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion), and is that record in the project data inventory?
- Does ACI 318-19 (2019), Ch. 22, govern here — and is that the edition adopted by the jurisdiction?
- What is the acceptance criterion for nondestructive evaluation methods, and was it written before the result was known?
- Is Mn = As·fy·(d − a/2) valid over the parameter range this project actually occupies?
- If the check fails, does the team revise the calculation package and framing drawings or raise a change request against the locked baseline?
Photo 1. Bolted steel connection — the detail that must deliver the force the member analysis assumed.
HAER / Library of Congress, public domain
Section C
Why this matters
Professional
A licensed engineer defending structural inspection cites ACI 318-19 (2019), Ch. 22, and shows the record behind each input. Your structural inspection report with as-built capacity recalculation. is reviewed the same way — traceability is assessed before arithmetic.
Technical
Visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion) is what makes Mn = As·fy·(d − a/2) usable on this project rather than a formula copied from a reference. Get it wrong and every quantity derived from it is wrong by the same factor.
Safety
The failure mode this module guards against is an element loaded beyond its governing limit state. It reaches people through load rating logic, which is why the safety check is recorded explicitly here rather than inferred from a passing strength or performance check.
Economic
The data foundation every later calculation silently depends on is priced from this work. Quantities, unit costs and schedule float all trace to visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion); a late correction here is paid for as a change order, not a redline.
Environmental
Environmentally, this module fixes embodied carbon in concrete and steel, and the demolition waste of a redesign. Choosing conservatively without justification is not free — the excess shows up as material, energy and land that the project consumes for no measurable gain.
Community
Field-observed distress must trigger an as-built capacity recheck immediately, not after the original schedule allows. Occupants who rely on the structure performing through its design life and design event live with that outcome long after the semester ends.
Section D
Learning objectives
By the end of this module you will be able to:
- 1.Apply visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion), using this project's own conditions rather than a textbook case.
- 2.Analyze nondestructive evaluation methods, using this project's own conditions rather than a textbook case.
- 3.Analyze estimating as-built member capacity from field-measured dimensions and material condition, using this project's own conditions rather than a textbook case.
- 4.Explain load rating logic, using this project's own conditions rather than a textbook case.
- 5.Compute the governing quantity from Mn = As·fy·(d − a/2), with a unit audit on every term.
- 6.Apply ACI 318-19 (2019), Ch. 22, and cite the section that governs your acceptance decision.
- 7.Reproduce the worked example for a field-inspected RC beam has As = 1,200 mm², fy = 420 MPa, d = 450 mm (reduced… and defend the interpretation of the result.
- 8.Produce structural inspection report with as-built capacity recalculation. at a standard the plan reviewer at the building department would accept without a second revision cycle.
Section E
Instructional content
Full lecture notes with figures and governing equations
Structural Inspection: from proposal statement to engineering product
Students conduct and document a structural field inspection, computing an as-built demand estimate to compare against the original design capacity. That single sentence hides the substance of the module: visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion), and nondestructive evaluation methods. Both must be established from project evidence before anything downstream is credible.
In structural engineering, this work is the input to the calculation package and framing drawings. Estimating as-built member capacity from field-measured dimensions and material condition — which is why this page asks you to record the source of every quantity, not just its value. The data foundation every later calculation silently depends on depends on it.
- Visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion)
- Nondestructive evaluation methods: rebound hammer, ultrasonic thickness, ground-penetrating radar
- Estimating as-built member capacity from field-measured dimensions and material condition
- Load rating logic: comparing an as-built demand-to-capacity ratio against the original design ratio
Photo 1. Structural Inspection: from proposal statement to engineering product in practice — Bolted steel connection — the detail that must deliver the force the member analysis assumed.
HAER / Library of Congress, public domain
Governing relationships and how they are applied here
The relationships below govern structural inspection. Mn = As·fy·(d − a/2) — each is valid only inside the parameter range this project occupies, so state that range before substituting.
Nondestructive evaluation methods sets the values you place into these expressions. Any code-prescribed factor must match ACI 318-19 (2019); a factor lifted from a different edition silently changes the answer.
Mn = As·fy·(d − a/2)
- Mn = nominal moment capacity
- As = area of tension steel
- fy = steel yield strength
- d = effective depth
- a = depth of equivalent stress block
Photo 2. Governing relationships and how they are applied here in practice — Field review: the conversation in which a scope, a constraint or a decision is actually settled.
Capstone Studio instructional photograph
Constraints, adopted standards and the safety case for structural inspection
ACI 318-19 (2019), Ch. 22, governs this module: Nominal flexural strength provisions used to recompute as-built capacity AASHTO Manual for Bridge Evaluation (3rd Ed.), Sec. 6, adds the second constraint: Load rating methodology for existing structures
The safety case is explicit here. The failure mode is an element loaded beyond its governing limit state; the people exposed are building occupants, erection crews and the structural engineer of record; the control that prevents it is load rating logic together with an independent check by someone who did not perform the work.
- Controlling criterion for this module: visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion).
- Adopted reference: ACI 318-19 (2019) — cite Ch. 22 by number.
- Failure mode guarded: an element loaded beyond its governing limit state.
- Evidence produced: Structural inspection report with as-built capacity recalculation..
Photo 3. Constraints, adopted standards and the safety case for structural inspection in practice — Field review: the conversation in which a scope, a constraint or a decision is actually settled.
Capstone Studio instructional photograph
Where this method stops being valid
The worked example — a field-inspected RC beam has As = 1,200 mm², fy = 420 MPa, d = 450 mm (reduced from 480… — holds only while its assumptions hold. The as-built capacity is roughly 6% below the original design value due to measured cover loss; this reduction must be carried into the demand-to-capacity check before any load rating decision is issued. Outside that envelope the arithmetic still returns a number, and the number is wrong in a way no unit check will catch.
For this project, the boundary you are most likely to push is load rating logic. If you cross it, say so in writing, bound the error, and carry the limitation into your results chapter. A disclosed limitation is professional practice; a silent extrapolation is not.
Photo 4. Where this method stops being valid in practice — Structural framing of a pedestrian bridge: members, connections and the load path a designer must trace.
Wikimedia Commons, CC BY-SA 4.0
Section F
Engineering workflow
Steps
- 1. Assemble the inputs this module needs — visual inspection techniques for concrete (cracking, spalling, corrosion staining) and…; nondestructive evaluation methods — each with a unit and a source record.
- 2. Confirm ACI 318-19 (2019) is the adopted edition and locate Ch. 22.
- 3. State the assumptions and the acceptance criterion for visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion, distortion).
- 4. Evaluate Mn = As·fy·(d − a/2) term by term, carrying one extra significant figure.
- 5. Test the result against estimating as-built member capacity from field-measured dimensions and material condition.
- 6. Audit units and run an order-of-magnitude check by hand before the number leaves your desk.
- 7. Obtain an independent check from a teammate who did not perform the work, and record their name and date.
- 8. Assemble structural inspection report with as-built capacity recalculation. and submit it to the plan reviewer at the building department for review.
Decision points
- Is every input behind visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section… traceable? If not — stop and collect the record.
- Does the result satisfy nondestructive evaluation methods? If not — revise the work, never the criterion.
- Would the correction change the data foundation every later calculation silently depends on? If yes — raise a change-control request before proceeding.
- Have you ruled out the most common error on this module — recomputing capacity using as-designed dimensions instead of field-measured as-built dimensions?
Quality checklist
- Documented: visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section…
- Documented: nondestructive evaluation methods
- Documented: estimating as-built member capacity from field-measured dimensions and material condition
- ACI 318-19 Ch. 22 cited by section number
- Units audited on every expression
- Acceptance criterion recorded before the result
- Independent check signed and dated
- Structural inspection report with as-built capacity recalculation. attached and named per the course convention
Section H
Interactive visualization
Structural Inspection — step-through
Advance one frame at a time. Each frame adds one engineering decision to the previous state.
Step 1 of 6
Field-measure member dimensions and reinforcement cover using cover meter and probes.
Section I
Applicable codes and standards
ACI 318-19
2019 · Ch. 22
Adopted design/analysis reference governing this module.
Relevance: Nominal flexural strength provisions used to recompute as-built capacity
Reference the section number and edition in your calculation package. Do not reproduce code text.
AASHTO Manual for Bridge Evaluation
3rd Ed. · Sec. 6
Adopted design/analysis reference governing this module.
Relevance: Load rating methodology for existing structures
Reference the section number and edition in your calculation package. Do not reproduce code text.
Section J
Worked examples
Full engineering solution format
Section K
Common mistakes and how to avoid them
- Recomputing capacity using as-designed dimensions instead of field-measured as-built dimensions.
- Treating a hairline crack as cosmetic without measuring width and correlating it to a known distress mechanism.
- Treating visual inspection techniques for concrete (cracking, spalling, corrosion staining) and steel (section loss, corrosion,… as a given instead of establishing it from a project record.
- Producing structural inspection report with as-built capacity recalculation. without showing how nondestructive evaluation methods was satisfied.
- Substituting into Mn = As·fy·(d − a/2) outside the range where it is valid, and reporting the number anyway.
- Missing load rating logic, which is exactly the path to an element loaded beyond its governing limit state.
- Collecting data before defining what decision the data has to support.
- Accepting a laboratory or field value without its method, date, operator and uncertainty.
- Citing the wrong edition of a standard, or citing a standard that does not govern the jurisdiction.
- Leaving boundary conditions undefined so the model is not reproducible by an independent checker.
- Using inputs that no field record, laboratory report, or published source supports.
Section L
Industry case study
FIU pedestrian bridge collapse, Miami, 2018
Pedestrian bridge under construction, cracking observed prior to collapse
Official findings
- NTSB found that observed cracking at a critical connection was not adequately evaluated for its effect on structural capacity before traffic was allowed to remain open beneath the structure.
Field observations
- The controlling assumption was documented nowhere in the design record.
- No independent check existed at the stage where the error entered the work.
Engineering interpretation
- Interpretation below is student analysis for instructional purposes, not an official finding.
- Map the failure to a step in your own workflow and state where your process would have caught it.
Lessons learned
- Field-observed distress must trigger an as-built capacity recheck immediately, not after the original schedule allows.
Source: Summarize the published investigation; cite it in your reference list. Do not reproduce copyrighted report text.
Section M
FE Civil exam connection
Handbook FE Reference Handbook — structural engineering section (record the section number from your handbook edition).
Exam topics
Handbook formulas
- Mn = As·fy·(d − a/2)
Weak results here feed your FE Civil Academy weak-area queue for targeted practice.
Question 1 of 2
Score: 0/2In structural inspection, which item must be established BEFORE the analysis is run?
Section N
Apply it to your project — Structural Inspection
Complete this using your own capstone project data. Every field is saved to your project record and routed to your advisor with this module's submission.
Inputs and sources
Every value needs a traceable source.
| Quantity | Value | Unit | Source / record |
|---|
Assumptions and consequences
| Assumption | Basis | Consequence if wrong |
|---|
Self-check before submission
Section O
Design challenge
Consulting challenge — Structural Inspection
Your firm has been retained to deliver the structural inspection scope for a municipal client on a compressed schedule. Produce the technical position your firm would defend at a public meeting.
Client request: The client wants a defensible recommendation, the basis of design, and an honest statement of what remains unresolved.
Constraints
- Adopted local code edition governs; no exceptions without written variance.
- Budget and schedule are fixed; scope changes require change control.
- Public safety and accessibility requirements are non-negotiable.
Deliverables
- One-page basis of design
- Supporting calculation extract
- Risk and limitation statement
Evaluation
- Technical correctness
- Standard compliance
- Clarity of engineering judgment
- Honest treatment of uncertainty
Section P
Documentation workspace
Write the report section for this module in the academic editor
Section Q
File uploads
Accepted: PDF, DOCX, XLSX, CSV, PNG, JPG, ZIP
No files uploaded yet.
Section R
Deliverable and advisor review
Structural inspection report with as-built capacity recalculation.
Submissions route to your assigned faculty advisor and are scored independently by faculty and administrator rubrics.
Reflection
What was the hardest engineering judgment in this module, and how did you resolve it?
Section S
ABET outcome mapping
Structural inspection report with as-built capacity recalculation. with advisor review and dual scoring.
Assessment: Faculty rubric score and administrator rubric score on this module's submission.
Rubric: Data quality · Target: 70% of students at or above 'meets expectations'.
Structural inspection report with as-built capacity recalculation. with advisor review and dual scoring.
Assessment: Faculty rubric score and administrator rubric score on this module's submission.
Rubric: Data quality · Target: 70% of students at or above 'meets expectations'.
Section T
References and further study
ACI 318-19 (2019)
Adopted reference — cite section numbers, do not reproduce text.
AASHTO Manual for Bridge Evaluation (3rd Ed.)
Adopted reference — cite section numbers, do not reproduce text.
Structural Inspection — instructor design procedure
Course template for the calculation package format expected in the final report appendix.
NCEES FE Reference Handbook
Locate the equations used here and note the handbook section for exam recall.
Advisor meeting agenda item
Bring the unresolved decision from this module to your next weekly advisor meeting.