Conventional concrete structure for beam and floor is common with 1.00-3.60 m. width and 1.00-10.00 m. length. Lt has a large size and huge dead load. Building codes also require L/25 thick for one way slab, beam parameter divided by 180, or L/10 for beam depth. Therefore, concrete structure has design influence factors as 1) building dead load, 2) construction time, 3) budget, and 4) energy use for both during construction and building operation. Ways to develop concrete structure in this study are: 1) structure design theory of shape, form, moment of inertia, shear, etc., 2) steel reinforce theory, 3) construction process and site supervision.
The results showed that 0.05-meter-thick rib floor slab with 1.20 m. width and 1.00 to 10.00 m. length passes the required load and safety. Experiments conducted from single slab to 3 pieces combination. First, 0.05 m. thick and beam depth was fixed and second 0.05 m. thick was fixed while beam depth varies as common concrete design. With the live load and safety condition, the results are as follows:
1)1) The 0.05-meter-thick rib floor slab reduces 37% of dead load compared to conventional design ( double slab with ) while it reduces 75% of dead load in triple slab width. 2)Construction time can be reduced from 8 to 88% ( 0.43 to 4.55 days ) 3) Structural costs are decreased range from 4.1 to 28% 4) With EPS foam block, it reduces heat transfer and provide 2.63 C lower underneath 0.05-meter-thick rib floor slab.
