Rcc slab design pdf


Design of one way RCC slab is similar to design of beam but the only difference is during the design of one way slab we take unit width of slab as a beam width. Note: In one way slab, the maximum bending moment at a support next to end support.

Start Learning English Hindi. This question was previously asked in. Answer Detailed Solution Below Option 4 : a support next to end support. Start Now. One-way slab: Design of one way RCC slab is similar to design of beam but the only difference is during the design of one way slab we take unit width of slab as a beam width.

Slabs are designed for bending and deflection and not designed for shear. Slabs have much small depth than beams. Most of slabs subjected to uniformly distributed loads. Get Started for Free Download App. More Beams and Slabs Questions Q1. Which one of the following is not correct with respect to curtailment of beams? A reinforced concrete beam, supported on columns at ends, has a clear span of 5 m and 0. The design shear force for the beam is.

For a slab spanning in two directions, the ratio of span to the depth of slab should not exceed. For the deflection of a simply supported beam of 8 m spans to be within permissible limits, the ratio of its span to effective depth should not exceed. In double reinforced sections, total reinforcement percentage should not exceed:. As per IS thickness of flat slab should not be less than.

A reinforced cement concrete beam can have maximum area of tension reinforcement as. Suggested Test Series. Suggested Exams. A rectangular beam of width b mm and effective depth d mm is reinforced with four bars of 12 mm diameter.

The grade of concrete is M20 and grade of steel is Fe For a factored shear force of 45 kN, the diameter in mm of Fe steel two legged stirrups to be used at spacing of mm, should be. Shear failure at sections of beams and cantilevers without shear reinforcement will normally occur on plane inclined to an angle. Dead load a. Imposed load b. Wind Load c. Snow Load d.SlideShare uses cookies to improve functionality and performance, and to provide you with relevant advertising.

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Flat slab ppt. Punching Shears 1. Flat slab and it's importance. Climate Responsive Architecture Finalpdf. Waffle slab. Related Books Free with a 30 day trial from Scribd. Uncommon Carriers John McPhee.

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The Constructor

No problem.For a suspended slab, there are a number of designs to improve the strength-to-weight ratio. In all cases the top surface remains flat, and the underside is modulated:. These slabs could be cantilevered or Simply Supported Slabs. The modification factor is based on the area of tension steel in the shorter span when a slab is singly reinforced at midspan, the modification factors for the areas of tensions and compression steel are as given in the figure 2 and 4 of the code.

A concrete block or specimen is sent to the lab for testing the quality of the concrete. Load is applied on the concrete block after 28 days of curing to determine the crushing strength of the concrete. The strength of the concrete is calculated by dividing the maximum load at failure by the average cross sectional area of the concrete block or member. Between the prefabricated concrete slabs and in situ concrete slabs, which is more widely used? Also which is more economical? Hello, In-situ concrete slabs are commonly used.

They are a typical method of construction of RCC slabs. And ofcourse they are less expensive than the prefabricated or precast construction methods…. For simply supported slab where as Room size of 3m X 4. Hello, Since the room dimensions are 3mx4. If the size of the room was 2mx4m, then you could have go for a one way slab.

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Which kind of slab we r using now a days. Pre tension or post tension, kindly tell me function of both. Hello Ajay, Post tension and Pre tension slabs are not in much use in India. The kind of slab construction that we use is cast-in situ RCC slab. RCC Building Design guide.

Hello Emma, We shall definitely try and clear all your queries regarding Structural Mechanics. Hi, Dear sister it is very benifacial for the student. The reinforcement requirements for a rectangular shaped slab and a square shaped slab is different. Depending on the span and shape of the slab, it is classified under one way or two way.

In simple words lenght to width ratio of slab if it exceeds 2. How do we consider a water tank of litres sintex tank in the design of a two way slab or One way slab?

As a concentrated load or udl?Embed Size px x x x x After arriving at bottom of deck level,bottom of foundation level and required ventway,the dimensions of the bridge are finalised. The dirt wall is proposed as per the drawings given in Plate No. Dead load2. Live load3. Impact load4. Wind load5. Water current6. Earth pressure9. Seismic force Water pressure force. As per clause Post on Jul views. Category: Documents download. Step The vertical clearence and afflux are verified.

As per the hydraulic particulars furnished by the Irrigation department b. By Area-Velocity method using Manning's equation for arriving at the flow velocity a. Bottom of deck level was fixed based on HFL and road formation levels on both sides. Ventway calculations are done for fixation of ventway. Normal scour depth with reference to HFL was calculated using Lacey's equations e. After arriving at the Maximum scour depth,bottom level of the foundation was fixed After arriving at bottom of deck level,bottom of foundation level and required ventway,the dimensions of the bridge are finalised.

Load combination is selected as per IRC c.Conversion Conversion Emoticon Emoticon. Design of two way slab. The design of the RCC slab classified by the spanning as one way and two-way slab. We have calculated the one-way slab as per IS: To calculate the RCC slab manually is a lengthy process, I suggest to use tools, which will save time. In this article, we will calculate all the necessary steps manually and provide a final reinforcement detail for a two-way slab. As we discussed in previous articlesthe ratio of longer to shorter span is less than two and the slab is supported in all the four edges, then the slab is called a two-way slab.

The steps for designing the two-way slab is similar to the one-way slab design. From our beam and column layout plan, we will calculate the longest slab, which is the slab S Slab layout You can see the S-7 has a longer direction of The use of the slab will be a bedroom.

In the design calculation, we will consider a 1-meter strip. If the shorter span is less than or equal to 3. F IS:P. IS:P. We will consider the longer span because the bond is critical in the longer direction. This check is also done along the longer span because, the shear critical along ly.

Maximum S. For two way slab, the plan view will look like following. Two-way slab reinforcement arrangements plan view. Two-way slab reinforcement detail.

After the completion of the slab design, we will further move towards the design of columns. Tweet Share Share Share Share. Next « Prev Post. Previous Next Post ». Subscribe to: Post Comments Atom. Popular Posts. Design of slab : Two way slab design as per IS : - Design of two way slab The design of the RCC slab classified by the spanning as one way and two-way slab.

We have calculated the one-way sl Design of slab : one way slab design. Part 5 - One way and two-way slab design To design the slab, we specify the reinforcement detail according to the span length by either one Design of beam as per IS: Part Design of RCC beam The work of the structure designer is to provide the beam size and reinforcement detailing plan to the architect Silica fume in concrete : what is silica fume, properties, advantages, disadvantages and application.Thumb Rules For Civil Engineering is essential for any civil engineer, Site engineeror civil supervisor.

They play a crucial role while taking quick decisions on site. There is some civil engineering basic knowledge that every civil engineer must know. The Thumb Rule of Civil Engineering or the thumb rule for construction helps you in finding out the solution using a simple mathematical formula and make smart decisions whenever needed.

But, while using these thumb rulesyou must remember that the thumb rule never gives the exact or accurate results, you just have used them for approximate results. So, the following are some most frequently used Thumb rules on the Construction site.

In thumb rules and the units are not the same when we compare to get the results. So, ignore units while performing the thumb rule. Following are thumb rules in civil engineering. So, for the plan area of Sq. Following are some important thumb rules for steel calculation for slabbeamcolumnand footings.

You can also use BN Datta recommendations for the more accurate result. Following are thumb rules for reinforcement in concrete members.

How to calculate the steel quantity of slab having the Length, width, and depth of the slab is 5m x 4m x 0. For accurate estimationyou can refer to Bar Bending Schedule. Shuttering work is done to bring the concrete in Shape. The Thumb rule to estimate the shuttering required is 6 times the quantity of concrete or 2. The No. If work requires 25 Ply sheets, the total quantity of Battens are Approximately75 grams of Nails were used in the shuttering of the 1m 2 area.

PRACTICAL DESIGN TABLES FOR SLABS, BEAMS, COLUMNS AND FOOTINGS BY THE LIMIT STATE METHOD

Shuttering oil is applied on the shuttering plate surface used to de-frame or de-assemble from the concrete easily. For every 15m 2 of shuttering 1 liter of shuttering oil is consumed. Thumb Rule can be called a guideline, idea, or principle that helps you make quick decisions. It referred to builders who frequently use their thumb to estimate measurements. It is a helpful rule even being inexact. Lapping in reinforcement is not allowed for the bars having diameters more than 36 mm.

Steel Char maximum spacing is 1. In steel dowels, a rod minimum of 12 mm diameter should be used. Steel Chairs minimum of 12 mm diameter bars to be used. Longitudinal reinforcement should not be less than 0.It is made of concrete and reinforcements are provided to support it.

It is several inches thick and it rests on beams and columns. It is estimated that a concrete slab lasts for about 30 to years if it is built with good grade of concrete and steel. Usually for residential purpose M20 is used. There are two types of slabs — one-way slab and two-way slab.

Two-way slabs are supported on four sides while one-way slabs are supported on two opposite sides. Two-way slabs carry load in two directions and so reinforcements are provided in both directions. Whereas in one-way slab the reinforcement is provided in one direction as it carries load in one direction. In one way slab the ratio of longer to smaller span is greater than or equal to 2 while in two-way slab the ratio of longer to smaller span is less than 2.

Here, in this problem first a plan of the house is shown then the slab panels are depicted as per the house plan. The plan used for gravity analysis of a building is similar to slab panels also.

Here primary beams are taken and secondary beams are not included in order to make the calculations short. Also, the longer to shorter span ratio is less than 2 in all panel slabs so all slabs panels are two-way slabs.

The design method is followed as per Annexure D of IS Check for Thickness. Design a cantilever slab of 1. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Awarded as the best online publication by CIDC. Follow Us on:. Email This Post. Share this post.

Reinforced Concrete Slab Design and Detailing Guide IS456: 2000

Passive Solar Design Read More. Different types of House Paint Read More. Mineral Admixtures Read More. May 17, at am. Jyoti dhaygude says:. June 26, at am. ACI Code provides two design procedures for slab systems: Direct Design Method (DDM) For slab systems with or without beams loaded only. Textbook of R.C.C, by phytolite.eu and phytolite.eu, Wiley Eastern Limited.

New Delhi, Design of Concrete Structures, 13th Edition, by Arthur H. Nilson. (ix) Briefly outline the design provisions for two types of shear reinforcement in flat slabs. 2. For the flat slab shown in Exampleuse USD to. (i). Stair case may be considered as an inclined slab Design of One Way Slab. • One way slab is Spacing of main bars in an RCC slab shall not exceed. way slabs, Design of staircases. Module-III. Design of short and long columns The following design methods are used for the design of RCC Structures.

Design of RCC Slab - Free download as Excel Spreadsheet .xls), PDF File .pdf), Text File .txt) or read online for free. Easy solution for design of Slab. Concrete slab behave primarily as flexural members and the design is similar to that of beams. 2. CLASSIFICATION OF SLABS. Slabs are classified based on. Following are the RCC Slab Design and Detailing guidelines: Contents: Reinforced Concrete Slab Design Guidelines. a) Effective span of slab. Two Way RCC Slab Designing Excel Sheet Civil Engineering.

Reinforced Concrete Slab Design Guidelines. Designing A Simply Supported Reinforced Concrete One. slab, only R.C.C. flat slab and the R.C.C.

design of 4m span rcc slab culvert

slab and beams. After the design of. these four cases the comparative study with. Structural Designing Software (CSC TEDDS & RCC Excel Spreadsheet) and manual method were used for the analysis and design of both floor systems.

Chapter 5 Design of Prestressed Concrete Girder. prestressed concrete bridge girders that support a concrete slab that has a span length e_phytolite.eu Manual for design of slabs, pile caps and footings. The Code has included definitions of beam, slab, column and wall in. Design of Slab (Examples and Tutorials) by Sharifah Maszura Syed Mohsin. Example 1: Simply supported One way slab. A rectangular reinforced concrete slab is.

Abstract: Slab design is done mainly by manual method or using design and analysis software. In this article, a C coding has. To calculate the RCC slab manually is a lengthy process, I suggest to use tools, which will save time. In this article, we will calculate all. Punching shear resistance of slabs and column bases with shear reinforcement.

Design with strut and tie models. General. Struts. Detailing involves the communication of the engineer's design to the contractors who build the structure Tension within the supports of beams and slabs. Here primary beams are taken and secondary beams are not included in order to make the calculations short.

Also, the longer to shorter span ratio is less than 2. βSx: Short span coefficient in slab design. F/C: Footing under column. II. MATERIAL STRENGTHS. 1. (Cube strength of concrete (fcu). = 25N/mm2.