Course Description
BCN4431 is the structural design course in a Florida construction management degree. The Statewide Course Numbering System titles it Steel & Timber Design and states its objective plainly: "to familiarize the student with the material properties, design procedures, and code requirements of steel and timber… The student will understand how to analyze and design steel and wood structures. They will be aware of methods of erecting structures." The statewide prerequisites are BCN2405 (structures), MAC3233 (applied calculus), and physics with its laboratory.
⚠⚠ Not one of the three institutions carrying this number uses the statewide title, and two of them disagree about where it sits in a sequence:
| Institution | Its title | Credits | What the title implies |
|---|
| Florida International University | Structural Design II | 3 | The second structures course |
| University of North Florida | Structural Systems | 3 | A systems survey, position unstated |
| University of West Florida | Structures I | 3 | The first structures course |
✅ All three carry it at 3 credits. ⚠ "Structures I" and "Structural Design II" cannot both be right about the same number, and that has consequences — see the offering notes.
The subject itself is distinctively a construction course rather than an engineering one, and the difference is worth understanding. A civil engineering steel course (CES4605C) trains a designer who will seal drawings. This course trains a builder who must read those drawings, understand why members were sized as they were, recognise when something on site does not match the design, and know how the structure goes up. ⚠ Erection methods appear in the statewide objectives, and they do not appear in the engineering equivalent — that single difference captures what this course is for.
Learning Outcomes
Required Outcomes
- Describe the material properties of structural steel — grades, yield and ultimate strength, ductility — and of wood, including species, grade and the effect of moisture.
- Determine design loads and apply the governing load combinations: dead, live, wind, and — ⚠ in Florida — hurricane wind loading.
- Read and use the AISC Steel Construction Manual to find section properties and capacities.
- Read and use the National Design Specification for Wood Construction and its supplement.
- Analyse and design steel tension members, including net section and connection effects.
- Analyse and design steel compression members, including effective length and slenderness.
- Analyse and design steel beams for bending, shear and deflection, including lateral bracing requirements.
- Design steel connections — bolted and welded — at the level needed to evaluate a detail on a drawing.
- Analyse and design wood members: joists, beams, columns and studs, applying adjustment factors for duration, moisture, size and temperature.
- Design wood connections using nails, bolts and framing hardware.
- Describe erection methods for steel and timber structures, including sequencing, temporary bracing and stability during construction.
- Read a structural drawing set and relate it to the specification and to what must be built.
- Identify when field conditions depart from the design and explain why that must be referred rather than resolved on site.
Optional Outcomes
- Design composite steel-concrete floor systems.
- Design engineered wood products — glulam, LVL, I-joists, trusses.
- Apply lateral force resisting systems for wind, including shear walls and diaphragms.
- Use structural analysis software and interpret its output.
- Address temporary structures, formwork and shoring.
- Address constructability review and value engineering.
- Complete a design or take-off project on a real structure.
Major Topics
Required Topics
- Structural materials — steel grades and shapes; wood species, grades and the anisotropy that makes timber design unlike steel design.
- Loads and load paths — gravity and lateral loads, tributary areas, load combinations, and tracing a load to the foundation.
- Steel tension members — gross and net area, block shear, slenderness.
- Steel compression members — buckling, effective length, local buckling.
- Steel flexural members — bending capacity, lateral-torsional buckling, shear, deflection and serviceability.
- Steel connections — bolted and welded; reading a connection detail.
- Wood design — allowable stress design, the adjustment factor system, bending, shear, compression perpendicular to grain, deflection.
- Wood connections — nails, bolts, shear plates, and proprietary framing hardware.
- Light-frame construction — platform framing, headers, studs, sheathing, and the load path through a wood building.
- Erection and stability — sequencing, temporary bracing, crane considerations, and the fact that a structure is most vulnerable while being built.
- Codes and drawings — the Florida Building Code, AISC, NDS; reading a structural set alongside a specification.
Optional Topics
- Composite construction.
- Engineered wood products and trusses.
- Lateral systems, shear walls and diaphragms.
- Structural analysis software.
- Formwork, shoring and temporary structures.
- Constructability and value engineering.
- Failure case studies.
Resources & Tools
- ⚠ The AISC Steel Construction Manual and the AWC National Design Specification for Wood Construction are the course. Both are reference works students bring to class and are examined with. The NDS is inexpensive; the AISC manual is not, and is worth checking whether your programme supplies one.
- Structural Design for the Civil and Environmental Engineering PE Exam, and construction-oriented texts such as Simplified Design of Structural Steel and Simplified Design of Wood Structures (the Ambrose/Parker series), are the usual assignments — ⚠ they are pitched at construction managers rather than engineers, which is the right level here.
- ASCE/SEI 7 for loads, and the Florida Building Code, which amends the international codes. ⚠ Florida's wind provisions and its High-Velocity Hurricane Zone requirements in Miami-Dade and Broward exceed the national baseline, and a national answer is a wrong answer in this state.
- Software where used: RISA-3D, SAP2000, or spreadsheet tools; ⚠ in a construction programme, software literacy matters less than the ability to check a number by hand.
- The AWC Wood Frame Construction Manual is free, prescriptive rather than analytical, and is what a residential builder actually works from.
- Professional bodies: the Associated General Contractors and Associated Builders and Contractors, both with Florida chapters and student memberships.
Career Pathways
- Construction Manager (SOC 11-9021) — the direct destination of the degree this course sits in.
- Cost Estimator (SOC 13-1051) — ⚠ structural literacy is what separates an estimator who can read a set from one who can only count items.
- Construction and Building Inspector (SOC 47-4011) — ⚠ a substantial Florida employment category, given the state's building code regime and the volume of construction.
- Civil Engineering Technician (SOC 17-3022).
- Project Engineer and superintendent roles with general contractors.
- Florida context: construction is one of the state's largest industries, driven by sustained population growth; the large general contractors and the residential builders operate statewide; county and municipal building departments hire inspectors and plans examiners; and ⚠ Florida's threshold inspection requirements create a distinct category of structural oversight work that most states do not have.
- ⚠ Post-hurricane assessment and rebuilding is recurring, well-paid and specific to this state — and it is structural work.
Special Information
Offering Notes — offerings and hours, school by school
| Institution | Its title | Credits | Contact hours |
|---|
| Florida International University | Structural Design II | 3 | not published |
| University of North Florida | Structural Systems | 3 | not published |
| University of West Florida | Structures I | 3 | not published |
All three are State University System institutions, so statewide numbering guarantees transfer between them. ✅ All three carry it at 3 credits.
⚠ The 45 contact hours at the top of this guide are derived — the Florida convention for a 3-credit lecture course. No institution publishes an hour figure.
⚠⚠ "Structures I" at one institution, "Structural Design II" at another — a sequence-position collision
This is the note that matters most. The same statewide number is the first structures course at the University of West Florida and the second at Florida International.
⚠ That is not a naming preference; it is a statement about what the course assumes and what follows it. A "Structures I" introduces analysis and design from a standing start. A "Structural Design II" assumes a first course has already covered statics, loads and probably concrete or masonry, and builds on it.
Three practical consequences.
- The prerequisite is the reliable signal, not the title. The statewide record requires BCN2405 — a prior structures course — along with applied calculus and physics. ⚠ Where that is enforced, the course is a second course whatever it is called. Check your own catalog.
- Transferring in, a receiving programme reading "Structures I" may assume you have not yet covered steel and timber design — when the statewide definition says you have. Carry your syllabus.
- Transferring out, confirm whether your programme expects a further structures course. ⚠ A student who takes "Structures I" and assumes a "Structures II" exists at the receiving institution may find the sequence numbered differently or not offered.
⚠ Not one institution uses the statewide title
The state calls this Steel & Timber Design. All three institutions use a general "structures" title instead. ⚠ The consequence is that a student cannot tell from a catalog that this is specifically a steel and wood course — a title like "Structural Systems" would equally suit a survey covering concrete and masonry.
If your programme needs concrete design, this number does not cover it, whatever it is called; concrete sits under separate numbers. Read the course description rather than the title before assuming your structural coverage is complete.
⚠ This is a construction course, not an engineering course
Worth stating plainly, because students sometimes expect otherwise. The construction management path does not lead to Professional Engineer licensure — that requires an engineering degree, the FE examination, four years of qualifying experience and the PE examination through the Florida Board of Professional Engineers.
⚠ What it does lead to is the licensure that actually governs building: Florida's Certified General Contractor licence, administered by the Department of Business and Professional Regulation, which requires a combination of education and experience plus a state examination. ⚠ A construction management degree is the standard route to it, and the structural content here is examinable material. Know which licence your career needs before assuming the other one is available.
Position in the curriculum and workload
An upper-division course following BCN2405 and the mathematics and physics sequence. ⚠ The mathematics prerequisite is applied calculus (MAC3233), not the engineering calculus sequence — a signal that the treatment is applied rather than derivational, and reassurance for students who chose construction partly to avoid the engineering mathematics load.
Budget eight to ten hours a week. ⚠ The two halves feel different and students are usually stronger at one. Steel design is systematic — look up the section, check the limit states. Wood design is a system of adjustment factors, and missing one is the characteristic error. Build a checklist for the wood factors early and use it every time.
AI Integration
Structural design is code-driven, which puts it in the territory where these tools are least reliable and sound most confident — and in a construction context the consequences land on a site rather than on a page.
Genuinely useful: explaining why a limit state exists and what physically happens when it governs; generating practice problems; checking arithmetic and unit consistency; explaining an unfamiliar term in the AISC manual or the NDS; explaining a connection detail; and writing spreadsheet routines for repeated capacity checks, which is exactly how estimators and project engineers actually work.
⚠⚠ Where it fails:
- Code editions. AISC, the NDS and ASCE 7 are all revised, and equations, factors and methods change between editions. Models mix vintages, and nothing in the output signals it.
- Wood adjustment factors dropped. ⚠ The NDS factor system is exactly the kind of multi-step bookkeeping models handle badly — a generated wood calculation frequently omits a factor, producing a capacity that is too high.
- Table values from memory — section properties and design values recalled approximately. Every value comes from the manual.
- ⚠ Florida specifically: asked for a wind load, a model gives the ASCE 7 national baseline. The Florida Building Code amends it, and the High-Velocity Hurricane Zone requirements exceed it. A national answer will not pass a Florida plans review.
⚠⚠ The point specific to construction rather than design: a construction manager's structural judgement is used to question a drawing — to notice that a member looks light, that a connection cannot be built as drawn, that a temporary condition during erection is worse than the final one. That is a trained instinct, and it is what this course is building. A generated answer cannot supply it, and relying on one erodes the thing that makes you useful on site.
Professional weight: structural decisions are sealed by a licensed engineer, and a contractor who deviates from a sealed design without an engineer's approval assumes that liability personally. ⚠ The correct response to a structural question in the field is to ask the engineer of record — never to resolve it from a calculation you generated. That is the professional boundary this course should leave you clear about.
Academic integrity: read your syllabus; policies differ by instructor and commonly separate drafting from calculation.