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Introduction to LGSF Systems
1-Introduction-to-LGSF-Systems
1.1 LGSF system typologies and applications
1.2 Applicable codes & standards (e.g. AISI S100, IS 801)
1.3 Design workflow and documentation
Cold-Formed Steel Material Properties
2-Cold-Formed-Steel-Material-Properties
2.1 Steel grades, yield strength, and cold-work effects
2.2 Section property determination (area, moment of inertia, section modulus)
2.3 Durability factors: corrosion allowances and coatings
Section Profiles & Classification
3-Section-Profiles-and-Classification
3.1 Common LGSF member shapes (C-sections, U-sections, tracks)
3.2 Section classification (compact, non-compact, slender)
3.3 Effective width and flange/web calculations
Load Analysis & Combinations
4-Load-Analysis-and-Combinations-for-LGSF-Structures
4.1 Dead, live, wind, and seismic load determination
4.2 Load factors and combinations per relevant standards
4.3 Load path tracing through LGSF assemblies
Axial and Flexural Member Design
5-Axial-and-Flexural-Member-Design-for-LGSF-Structures
5.1 Axial compression design (Euler buckling approach)
5.2 Flexural bending design (LRFD/ASD bending equations)
5.3 Interaction design for combined axial-bending
Shear Wall & Diaphragm Design
6-Shear-Wall-and-Diaphragm-Design-for-LGSF-Structures
6.1 Sheathing panel shear capacity and load distribution
6.2 Shear-to-frame connection calculations
6.3 Diaphragm stiffness and deflection criteria
Floor & Roof Framing
7-Floor-and-Roof-Framing-in-LGSF-Structures
7.1 Purlin and girts design under uniform and concentrated loads
7.2 Floor joist and stud layout, spacing, and deflection limits
7.3 Serviceability checks: camber, vibration, and live-load deflection
Connections & Fasteners
8-LGSF-Connections-and-Fasteners-Design
8.1 Screw and bolt sizing for tension, shear, and pull-out
8.2 End-bearing and web-bearing connection design
8.3 Moment connections and continuity requirements
Bracing & Stability Control
9-Bracing-and-Stability-Control-in-LGSF-Structures
9.1 Global frame bracing strategies (k-bracing, X-bracing, portal frames)
9.2 Local buckling prevention (stiffeners, lip flanges)
9.3 Stability checks: sway, drift limits, and P-δ effects
Serviceability & Long-Term Effects
10-Serviceability-and-Long-Term-Effects-in-LGSF-Structures
10.1 Deflection limits for partitions, cladding, and finishes
10.2 Vibration criteria and natural frequency estimation
10.3 Creep, relaxation, and thermal expansion considerations
Thermal, Acoustic & Fire Performance
11-Thermal-Acoustic-and-Fire-Performance-in-LGSF-Systems
11.1 Thermal bridging calculation and insulation integration
11.2 Acoustic isolation: partition and floor system detailing
11.3 Fire-resistance rating methods and passive protection
Detailing, Fabrication & Erection Tolerances
12-Detailing-Fabrication-and-Erection-Tolerances-for-LGSF-Structures
12.1 Shop-drawing detailing: cut-backs, notches, and slots
12.2 Fabrication tolerances and quality control checks
12.3 Erection sequencing, anchorage, and alignment procedures
