تصميم Ribbed Slab

Way ribbed slab or waffle slab.

تصميم ribbed slab. Calculating numbers on a rental property using the four square method duration. The thickness of a floor slab must be determined early in design because the weight of the slab is an important part of the dead load of the structure. One way ribbed slab xlsx. The minimum thickness can be determined by many factors.

Design of waffle slab without beams by direct design method 32 32 32 c 1 c 2 c 3 c 4 132 c 5 c 6 c 7 c 8 32 s s s 22 3 7 c 9 c 10 c 11 c 12 32 8 11 b 1210 bb c 13 c 14 c 15 c 16 16 5 building plan assume s 32 x 2 building spans s s s by s s s building height 4 10 40 loads. Design the slab following the provisions of the aci code. Clear projection of. You are on page 1 of 11.

Example problem of one way slab design. Thickness hmin hmin. Search inside document. Aci 318 14 9 8 1 2 use ribs with 6 in.

Minimum thickness of non prestressed one way slab normal weight concrete and grade 60 grade 420 reinforcement ퟗ member minimum thickness h simply supported one end continuous both end continuous cantilever solid one way slab 푙 20 푙 24 푙 28 푙 10 ribbed one way slabs 푙 16 푙 18 5 푙 21 푙 8 note. 1 for 푓푦 other than 60 000 푝푠푖 multiplied tabulated value by. Two way ribbed slab duration. L span length of beam or one way slab.

Column design examples ebcs. Chapter eight design of one way slabs 11 there are two main types of ribbed floors a hollow block floors and b moulded floors as shown in figure 8 5. Jump to page. Check the applicable joist dimensional limitations as follows.

Civil online 11 393 views. 1 width of ribs shall be at least 4 in. Determination of the minimum thickness of slab for deflection control according to table9 5 a from the aci318 m 2008 code for the case of one end continuous one way ribbed slab the minimum thickness is. 3 3 design of oneway ribbed slab.

Design of waffle slab. 4 2 overall depth of ribs shall not exceed 3 5 times the minimum width. Ribbed slab floors are most economical for buildings such as hospitals schools hotels and apartment construction where loads are somewhat small and the spans are relatively large. Slab must be thick enough to provide adequate shear strength.

A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft. At any location along the depth. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi.