design of two way hollow block slabs of wood

Test of a hollow tile and concrete floor slab reinforced in two directions.An analysis of the structure indicates that on the basisof the recommendations of the final (191 6) report of the Joint Com- mittee on Concrete and Reinforced Concrete * the interior panels of the slab would be suitable for total live and dead working loads of about 83,. 67, and 48 lbs. /ft. 2 for the square, inter- mediate, and long panels,in the order given.2. Taking the weight of the slab at 50 lbs. /ft. 2. , it will be seen that under these recommendations the design live loads would be 33, 17, ...

types of structural floors - La Salle | Campus Barcelona7 Oct 2015 ... Definition Requirements Typologies Materials Installation Architectural design Information sources page. A rea. ONE-way. Construction A n. II. Prestressed hollow-core Slab. Constructio n. Precast slab of prestressed concrete. (high strength and reinforced) that has tubular voids extending over its full length making it much lighter than solid floor slabs. Ribbed slabs: ¶ or Double-T(TT) section. Precast pre-slabs. Planks. Lattice girder reinforced floors: AR012 solid floor ...

Two-Way-Joist-Concrete Slab-Floor-(Waffle-Slab ... - StructurePoint18 May 2017 ... Figure 3 Critical Section for One-way Shear Figure 4 Critical Section for two-way Shear. In this case, four options can be considered: 1) increase the slab thickness further, 2) use headed shear reinforcement in the slab, 3) apply drop panels at columns, or 4) use two-way joist slab system. In this example, the latter option will be used to achieve better understanding for the design of two-way joist slab often called two- way ribbed slab or waffle slab. Check the ...

Tests of hollow tile and concrete slabs reinforced in one ... - NIST Pageregarding- the extent to which the tiles could be relied upon to resist bending and shearing stresses. slabs of hollow tiles and concrete reinforced in two directions have been the subject of investigations which have helped to establish a basis for their design. The action of the tiles in these two types of slabs does not seem to be strictly analogous, for in the two-way type each tile is completely surrounded by the concrete, which seems to insure the transmission of stresses through the tile ...

Concrete ConstructionII - eBooks | Universitas NarotamaPART 2. MATERIALS AND SYSTEMS. of CONSTRUCTION. two-way SOLID SLAB. If the ratio of the long to the short dimension of a four-side-supported slab panel is less than 2.0, the slab is considered to behave as a two-way slab. ... 2 x 8 or 2 x 10 lumber. Column. Slab. FIGURE 23.5 Plan (looking up) and section through a typical banded slab, which yields a more economical form- work than the beam-and-girder system in Figure 23.4 . The projection of the beam below the ...

Hollow Block - SlideShare24 Apr 2015 ... In case of ribbed slab the blocks are not permanent but the wooden frame is not continuous so its hard to be applied and expensive. The blocks are considered as non-structural element as they do not contribute to strength of the slab. blocks may be made concrete with lightweight aggregate or other material as polystyrene ( foam ). hollow block slab can be one way or two way slabs . Ribbed slab hollow block slab Hourdi block different sizes; 4. Benefits of ...

Grid/ Waffle Slabs - SlideShare1 Dec 2016 ... Types of Grid Slab Diagrid Orthogonal 3-way Grids For Triangular & Hexagonal Areas; 10. Comparison: Long Span Structures 3m-50 m 6m-60m 8m-75m 10m-70m 10m-90m 20m-1200m; 11. Construction Grids are generally limited to the interior of a slab, leaving one or two of the forms out to create a solid fill around the supports. The solid fills provide the strength required for shear transfer to the supports. The fills also reduce the compression stresses at the ...

Handbook on Good Building Design and Construction - unisdrTel: + 63 2 812 3165. Fax: + 63 2 753 1441. Email: gtz-philippinen@ph.gtz.de. Website: www.gtz.de. UNDP Regional Centre in Bangkok. United Nations Service Building, 3rd Floor. Rajdamnern Nok Avenue. Bangkok 10200 Thailand. Tel: +66 2 288 ..... Good Building design and Construction Handbook. Page 23. Not good structure. Another example of a house which has too little structure to brace the walls against lateral forces. This is a common construction fault with hollow blocks.

Hollowblock slabs.pdf | Bending | Applied And Interdisciplinary ...2012 RC design 2 . Monday.Dr. especially when all beams are hidden beams.Monday. regardless of the rectangularity. Ease of construction. October 15. 2012 hollow block slabs (definitions) When the ribs are in one direction then it is a one-way hollow block slab. Hany Nessim Disadvantages Not economic for small spans Not suitable for heavy loads or

Flat Grid / Waffle Slab - SlideShare10 Jan 2016 ... Flat Grid Slab / Waffle Slab Information. ... Definition : A waffle slab is a type of building material that has two-directional reinforcement on the outside of the material, giving it the shape of the pockets on a waffle. This type of reinforcement is common on concrete, wood and metal construction. ... Ribbed slabs add strength in one direction, while the concrete waffle slab design adds strength in perpendicular directions. Concrete slabs can be reinforced with rebar for ...

16 Different types of slabs in construction | Where to use? | - Civil ReadDifferent types of concrete slabs flat one & two way, hollowcore ribbed, hardy, arch, sunken, grade post tension pre, pitch roof, sunshade, waffle slab. ... The concrete waffle slab is often used for industrial and commercial buildings while wood and metal waffle slabs are used in many other construction sites. This is a one .... It reduces or eliminates shrinkage cracking-therefore no joints, or fewer joints, are needed; It lets us design longer spans in elevated members, like floors or beams.

Design of Hollow Block Slab - ScribdBy. : Dr.Islam M. El-Habbal. 2011. Photos of hollow blocks slabs. hollow blocks Concept. Used blocks . Dimensions of hollow blocks slabs . Types of H.B. slabs . . . . B.hollow blocks slabs One way H. slabs With Projected Beams With Projected Beams With Hidden Beams With Hidden Beams .B. Slab two way H. . . 50m (Roofs With Projected beams) 0.25m 0.0 kN/m2 5.0m (Roofs With Hidden beams) Cross Rib Requirements Live Loads Span Condition 3.0 m One Cross Rib ...

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