Focused, simplified lecture guides with simulations, solved problems, and visual explanations. No fluff.
Visual demos for beams, stress & signals
Problems solved clearly, one step at a time
Embedded videos and animated concepts
All essential formulas in one place
Working Stress Design, cracked section analysis, the k & j method, beam geometry, and design from scratch. Interactive simulations and 3 fully worked problems.
Materials (Darwin, Dolan & Nilson, 15th Ed.). All 17 sections explained with analogies, interactive Canvas simulations, sliders, and 4 quick-check quizzes.
Design & Fundamental Assumptions (15th Ed.). All 6 sections — design philosophy, ACI code logic, the 4 core RC assumptions, axial load behavior, and elastic beam bending — with interactive calculators and 3 quizzes.
Flexural Analysis & Design of Beams (15th Ed.). Whitney stress block, beam failure modes, ρ limits, Mn calculator, Rn design aids — all 7 sections with live canvas diagrams, 4 quizzes, and interactive calculators. Part 1 live now.
Traffic Analysis & Design (CEE 350). Signal timing, level of service, trip generation, gravity model, mode split. Animated traffic signals, live simulations, and 20+ practice problems with solutions.
Chapter 1 — Materials fundamentals for RC design. Covers what concrete is, how it's made, what governs its strength, and why steel is its ideal reinforcing partner. Includes 6 interactive calculators and 6 canvas animations.