One-way Ribbed Slab
Solid Slab on all four sides a slab is supported and the ratio of long span to short span is equal to or greater than two it will be known as a one-way slab. The load on the slab is carried by the short span in one direction.
One Way Slab Systems Concrete Floors Slab Concrete
Plan view of one-way slab a Supported on two opposite edges b Supported on all edges LB 2 Two-way slabs.
One-way ribbed slab. Ribbed slabs are slabs cast integrally with a series of closely spaced joists which in turn are supported by a set of beams. In a one-way slab bending is only in one direction ie. Ribbed or Hardy or Waffle slab system is a slab that mostly consists of parallel steel ribs that are placed in the cross-sectional direction to each other.
One-way slabs transmit their load mainly in one direction ie the direction. Crack Control according to Eurocode 2. The load on the slab is carried by the short span in one direction.
The one-way ribbed slab is economical when it is used in the modular or prefabricated form. Crack Control without calculation. The one-way slab is economical up to a span of 36 meters.
Sandwich slabs may have the disadvantage of a larger weight compared to the ribbed ones but on the other hand they have the advantage that their spans and supports behave in the same proper way. Hollow blocks made of lightweight concrete or other. TYPES OF ONE WAY SLAB One way slab may be SOLID HOLLOW RIBBED 6.
Rib spacing should be between 600 and 1500 mm. A 1m strip is taken in the direction of span and treated similar to continuous beams. The ribbed slab was analyzed exactly by.
Minimum thickness of beams and one-way slabs. So the slab is one way where LB 2. A one-way joist floor slab consists of a series of small reinforced concrete T beams that are connected with girders that in turn carried by the building column.
The ideal thickness of waffle slab is 85 to 100 mm with a maximum overall depth of 300 to 600 mm. In a two-way slab quantity of steel is more as compared to the one-way slab. The saving of materials tends to be offset by some.
Concrete is cast between those spacing to make those ribs and in this way the slab also cast and the slab becomes the flange. The Solid Slab load on the slab is carried in one direction by the short span. This form of construction is not very common because of the formwork costs and the low fire rating.
Detailing and Design of One way Ribbed slab using etabs tutorialETABS PROFESSIONAL COURSEJOIN NOW USING PROMO LINK ONLY FOR EXCLUSIVE CONTENT AND COMPLETE 20. This reduction in the volume of concrete in the tension zone below the neutral axis is based on the assumption that the tensile strength of concrete is zero hence all the tensile stress is borne by the reinforcements in the. Ribbed slabs One-way joists Introducing voids to the soffit of a slab reduces dead weight and increases the efficiency of the concrete section.
What Is One Way Slab. The main advantage of ribbed floors is the reduction in weight achieved by removing part of concrete below the neutral axisSolid slabs. One-way Slab with the Hollow Block One-way slab action is assumed in a ribbed floor slab with joist beams made of the precast double-tee section in the ribbed floor with integral beams and also in hollow-block or hollow-cored slabs.
ONE WAY SLAB One-way slabs are those slabs with an aspect ratio in plan of 21 or greater in which bending is primarily about the long axis. When a slab is supported on all four sides and the ratio of long span to short span is equal or greater than two it will be considered as one way slab. A slightly deeper section is required but these stiffer floors facilitate longer spans and provision of holes.
However main reinforcement bar and distribution bar in the transverse direction. Ribbed Waffle Slab System. Whereas the two-way slab is economical for the panel sizes up to 6m 6m.
Economic in the range 8 to 12 m. T beams are known as joists which are formed by setting steel pan at a constant spacing. When a slab is supported by beams on the two opposite sides and the ratio of long span to short span is equal or greater than two it will be considered as one way slab.
Ribbed slab is a type of reinforced concrete slabs in which some of the volume of concrete in the tension zone is removed and replaced with hollow blocks or left as voids. In the Rib type of slab system we use plastic pods or hardy blocks to reduce the volume of concrete and steel inside. Also in this method The Egyptian code recommends in addition to the solid part cross ribs one to three ribs in one way ribbed slab when the length of these slabs are greater than 5 m to decrease the deflection of slab.
Design Compressive and Tensile Strengths. In reality sandwich slabs are ribbed slabs with a slab placed both to their upper and lower surface. However main reinforcement bar and distribution bar in transverse direction.
Reinforced concrete beam design parameters. In a shorter span. One-way Ribbed Slab System.
And this kind of floor systems are called one way ribbed slab. Ribbed floors consisting of equally spaced ribs are usually supported directly by columnsThey are either one-way spanning systems known as ribbed slab or a two-way ribbed system known as a waffle slab. APPLICATION OF LB RATIO In first figure slab is supported on two opposite sides only.
Both one way and two way ribbed slab systems are based on joists or ribs carrying a topping slab the only difference is how are the ribs arranged. WATCH RIBBED SLAB DESIGN IN SAFE 2016 EXCEL IN THE 1ST COMMENTRIBBED SLAB DESIGN IN SAFE-PART-2. The breadth of the beams or ribs in a ribbed slab is typically 110 to 200 mm.
One Way Slab. One-way slab action is assumed in a ribbed floor slab with joist beams made of precast double tee sections in ribbed floor with integral beams and also in hollow-block or -cored slabs. In one-way slab quantity of steel is less.
822 One-Way Ribbed Slabs Since resistance of concrete in tension is too small compared with that in compression concrete in the tension zone may be gathered in regularly spaced ribs cast monolithically with topping slab on top of these ribs. In the one way ribbed slab where the ribs are in one direction it is assumed that the loads are distributed in the direction of the ribs only so the load which is transferred through each rib is as follows -. In one way ribbed slab system the joists or ribs run usually in the shorter direction.
Post Tension Structures In Revit Post Tension Tension Engineering
Pin On Structures
Difference Between One Way Slab And Two Way Slab Slab Concrete Wood Reinforcement
What Is Slab Beam Column And Footing Construction The Constructor Slab Concrete Column Concrete Footings
16 Different Types Of Slabs In Construction Where To Use Slab Construction Types Of Flooring
Minimum Depth Thickness Nursing Student Tips Civil Engineering Software Education Design
Pin En My Dream
Atule Education 4th Yr Abcm Dia Grid Flat Slab Waffle Slab Waffle Ceiling Waffles Slab
Pin On Construction
Difference Between One Way Slab Two Way Slab Reinforcement Details Youtube Reinforcement Educational Videos Slab
Waffle Slab End Support Reinforcement Detail Reinforced Concrete Slab Architecture Design Concept
Construction Detail James Simon Galerie By David Chipperfield Archtiects David Chipperfield Architects Museum Island Building Museum
Formwork For Slabs And Beams Beams Roof Beam Concrete Design
Pin En Structure Concrete Framing
A Total Of 30 50 Centimetres Are Saved Per Floor Explain The Architects On The Product Website Waffle Ceiling Building Design Construction
Pin On Field Related
One Way Concrete Joist System Slab Precast Concrete Slabs Concrete Slab
The Building Makes Handsome Use Of Its Waffle Slab Floor Plates Placing A Light Fixture In Each One Description Waffle Ceiling Brutalist Architecture Design
Introduction Hollow Block And Ribbed Slabs Are Formed By Placing Blocks On The Slab And Concrete Ribs In Case Of Holl Slab Blocks Concrete
Pin On Structure
Different Types Of Concrete Slabs Flat One Two Way Hollowcore Ribbed Hardy Arch Sunken Grade Post Tension Pre Pi Roof Styles Slab Building Construction
Flat Slab Can Be Reinforced Using Drop Panels Or Column Heads Capitals Derrumbe Universidad De Stanford Mitos
1
البلاطات المعصبة بالاتجاهين Design Waffle Slabs Two Way Joist Slabs Architecture Modern Architecture Construction
Concrete Slab Structural Engineering Reinforced Concrete
Waffle Slab Cross Section Reinforcement Detail Civil Engineering Design Structural Design Engineer Structural Engineering
Waffle Slab Cross Section Reinforcement Detail Reinforced Concrete Concrete Slab Concrete
One Way Concrete Slab Systems Fundamentals Of Building Construction Book Concrete Slab Structure Architecture Construction Design
Which Slab Is Better Ribbed Slab Or Solid Slab One Way Or Two Way Slab Floor Slab Types Of Flooring
Waffle Slab Slab Waffles Waffle Ceiling
Rectangular Coffered Ceiling The Concrete Coffered Ceiling At The St Louis Art Museum Was Formed Modern Architecture Concrete Architecture
One Way Slab Civil Engineering Frame Building
Slab Hidden Beam Reinforcement Cross Section Detail Concrete Slab Beams Timber Frame Design
Voided Biaxial Slab Wikipedia The Free Encyclopedia Slab Structural Engineering Concrete Forms
Waffle Slab 40 50 Spans Can Go Up To 80 When Prestressed Slab Design Waffle Ceiling
16 Different Types Of Slabs In Construction Where To Use Slab Types Of Concrete Construction
Waffle Slab Beam Support Reinforced Concrete Slab Concrete Slab
Flat
Tow Way Concrete Slab Systems Fundamentals Of Building Construction Book Detalhamento Arquitetura Arquitetura Construcao
Pin On Beams
Pin On Structuraldetails Store Catalogue
One Way Slab Civil Engineering Frame Building
Waffle Slab Cross Section Reinforcement Detail Reinforced Concrete Concrete Slab Slab
Torsional Reinforcement In Slabs Reinforcement Concrete Slab Reinforced Concrete
Example On Structural Design Of Waffle Slab Structural Engineering Slab Design
Reinforced Concrete Constant Width Cantilever Slab Detail Reinforced Concrete Concrete Structure Concrete Design
Torsional Reinforcement In Slabs Concrete Slab Slab Reinforcement
16 Different Types Of Slabs In Construction Where To Use Slab Types Of Concrete Construction
16 Different Types Of Slabs In Construction Where To Use Types Of Concrete Slab Type
