Shear Wall Length 1234Partial Floor Plan1 = 5 + 45 + 4 + 5 + 4 Shear Wall Length 1/2 Span Length = Discontinuous Slab Edge 5 m = 0.754 = 4 + 3 + 44 + 3 + 4 + 3 = 0.52 = 3 + 4 + 3 + 43 + 4 + 3 + 4 4231 = 0.78** 2 B 3 m 3 m i) Two-way solid slab figure taken: ii) One-way solid slab Load distribution on one-way solid slab Bir dorultuda alan plak deme figure taken: ii) One-way solid slab The smallest permissible thickness t 8 cm for simply supported single span slabs st25 = > 2 figure taken: ii) One - way solid slab The smallest permissible thickness t 8 cm for cantilever slabs st10 figure taken:

B) One-way joist slab Bir dorultuda alan dili deme Slabs made up of a thin deck and closely spaced beams with clear spacing between each other not exceeding 70 cm are defined as joist slabs. It is possible to leave the spaces between the joists as well as to fill them with filler material. B) One-way joist slab The clear spacing between joists (e) 70 cm The joist width (bw) 10 cm The deck thickness (t) e/10 5 cm figure taken: TS500 B) One-way joist slab The ratio of total joist depth (including the deck) to the clear span should not be less than 1/20 d l/20 (if cantilever) d l/10 Try to place the joists in long direction figure taken: TS500 B) One-way joist slab e10 or 10cm70cm5cm bw if cantilever e d20 d10 C) Two-way joist Slab (Waffle slab) ki dorultuda alan dili deme (Kaset deme)

C) Two-way joist Slab (Waffle slab) Slabs made up of a thin deck and closely spaced beams in two orthogonal directions Waffle slabs can be designed in accordance with the general principles described in one-way joist slabs d30 25 30 D) Solid Slab Without Beams Kirisiz Deme Tabla Flat Plate (Kirisiz Deme) Flat Slab (Balkl Kirisiz Deme) Balk Reinforced Concrete: Mechanics and Design, James MacGregor, Prentice Hall i) Flat plate slabs resting directly on columns Flat Plate (Kirisiz Deme) Balksz ii) Flat slab slabs resting on columns having drop panels drop panels Flat Slab (Kirisiz Deme) With Drop panels or Capitals (Balkl) D) Solid Slab Without Beams The minimum thickness should be greater than h 20 cm and 30 figure taken: TS500 D) Solid Slab Without Beams The dimension of the columns in the span direction 20 should not be less than nor less than 30 cm figure taken: TS500 Structural Engineering Design Rules of Thumb Depth/Span ratios for Flexural Members or

Pre-dimensioning of Structural Members in Architecture Approximate dimension assumptions are various in sources ! Design Rules of Thumb For spans supported at both endsRC MembersOne way slab with beams ~ ls / 25 Two way slab with beams ~ ls / 30 35Beam ~ l / 12.5Joist slab~ l / 20Waffle slab~ ll / 25 30Flat plate/slab~ ll / 30Steel MembersProfile~ l / 15 20Joist~ l / 25Waffle~ ll / 35 Truss~ l / 12.5Joist~ l / 20Waffle~ ll / 25 30Steel joists (either beam or truss) approximately 100 cm center to centerWaffle (either beam or truss) approximately 150 200 cm center to centerDepth