Reinforced concrete design by Suliman khan academy

Identify the three main load types on structures: dead load, live load, and environmental loads, including weight from the structure, occupancy, wind, soil pressures, and temperature variation.

The lecture explains concrete grades, how 28-day cube compression strength defines grade numbers (e.g., M15, M20), and how cement, fine and coarse aggregates determine mix ratios like 1:2:4.

Learn concrete mix design using the minimum wage method to select cement, sand, and stone volumes. The example yields a 1:2.5:5 cement-sand-stone ratio.

Explore eight key column design guidelines, including longitudinal steel 1–8%, minimum six bars with spiral ties, tie sizes 3–4, and minimum/maximum spacing, lateral support limits, spiral diameter, and spiral pitch.

Apply ACA requirements to design a circular reinforced concrete column, determine the diameter from the gross cross-section area, select reinforcement and spacing, and verify design load and bar counts.

Explore spiral reinforced concrete column design, compare it with square and circular columns, and calculate diameter, concrete area, and spiral reinforcement, pitch and spacing per ACA guidelines.

Design a square reinforced concrete column using the design rules. Verify steel percentage (1–8%), minimum and maximum bar spacing, and spiral or tie requirements through a practical example.

Design a square reinforced concrete column by determining design load, sizing the column, selecting bars, and checking spacing and reinforcement using part one concepts.

Learn to determine the design strength of a column using the alpha and pi formula, with a practical 14-by-14-inch square example and details on longitudinal bars and ties.

Design a singly reinforced concrete beam by guiding you through seven steps—from load and moment calculations to beam size, reinforcement area, and bar counts.

The lecture checks ACA code requirements for a double RC beam, validates tension and compression zone reinforcement, compares actual and required depths, and discusses adjustments to meet code.

Evaluate a previously designed double reinforced concrete beam against ACA code requirements, verify reinforcement in tension and compression zones, and confirm the section meets code limits.

Differentiate one-way and two-way slabs by support and bending: one-way bends in one direction, two-way in two. Use the length-to-breadth ratio to decide the threshold and plan main tension reinforcement.

Learn to identify one-way slabs, determine minimum thickness from span, and design reinforcement for a simply supported rectangular slab using distributed loads and spacing rules.

Design a square footing by computing its area, depth, and bearing capacity. Check beam shear and upward pressure to finalize a safe depth.

Explore hooks design in reinforced concrete, detailing 90 degree and 180 degree bends, extensions of multiple bar diameters, and inside diameter guidelines for properly anchored tender hooks.