This document provides an overview of the design process for reinforced concrete beams. It begins by outlining the basic steps, which include assuming section sizes and materials, calculating loads, checking moments, and sizing reinforcement. It then describes the types of beams as singly or doubly reinforced. Design considerations like the neutral axis and types of sections - balanced, under-reinforced, and over-reinforced - are explained. The detailed 10-step design procedure is then outlined, covering calculations for dimensions, reinforcement for bending and shear, serviceability checks, and providing design details.
information on types of beams, different methods to calculate beam stress, design for shear, analysis for SRB flexure, design for flexure, Design procedure for doubly reinforced beam,
information on types of beams, different methods to calculate beam stress, design for shear, analysis for SRB flexure, design for flexure, Design procedure for doubly reinforced beam,
Design of steel structure as per is 800(2007)ahsanrabbani
It does not offer resistance against rotation and also termed as a hinged or pinned connections.
It transfers only axial or shear forces and it is not designed for moment
It is generally connected by single bolt/rivet and therefore full rotation is allowed
This presentation is on design of welded and riveted connections in steel structures. in this presentation we learn briefly about these connections and design terminology about these connections.
The design of Elements of Lifts and Escalator from Civil Engineering point of view. Mainly Raft foundation, Machine Foundation, and Shear walls are discussed.
Design of steel structure as per is 800(2007)ahsanrabbani
It does not offer resistance against rotation and also termed as a hinged or pinned connections.
It transfers only axial or shear forces and it is not designed for moment
It is generally connected by single bolt/rivet and therefore full rotation is allowed
This presentation is on design of welded and riveted connections in steel structures. in this presentation we learn briefly about these connections and design terminology about these connections.
The design of Elements of Lifts and Escalator from Civil Engineering point of view. Mainly Raft foundation, Machine Foundation, and Shear walls are discussed.
Design of Beam- RCC Singly Reinforced BeamSHAZEBALIKHAN1
Concrete beams are an essential part of civil structures. Learn the design basis, calculations for sizing, tension reinforcement, and shear reinforcement for a concrete beam.
good for engineering students
to get deep knowledge about design of singly reinforced beam by working stress method.
see and learn about rcc structure....................................................
Introduction
Types Of Fibers
Production Of SCFRC
Fresh Concrete Tests
Concrete Mixing And Casting Of Beams
Influence Of Concrete Type And Coarse Aggregate Characteristics On Shear
Influence Of Shear Span To Depth Ratio On Shear
Influence Of Beam Size On Shear
Advantages
Conclusions
References
What is corrosion?
Corrosion mechanism
Protective measures against corrosion
Methods of protecting metals
Corrosion inhibitors and types
Advantages and disadvantages of corrosion inhibitors
Concrete coating
Types and where to use it
Advantages and disadvantages of concrete coating
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
1. DESIGN OF RC BEAMS
PRESENTED BY
AGALIYA B V
BASINENI UDAY KUMAR
2. Basic Steps To Design A Beam
Assume the section size, grade of steel and concrete according to
the structure to be built,
Calculate the total UDL, point load and other loads if applicable,
Calculate the factored moment,
Revise the size and grade of materials if required,
Calculate the area of steel required,
Provide the reinforcement detail.
Before going to start the design of beam, let's understand the
following three concepts which are useful for design calculation.
3. BEAMS
Beam is a horizontal structure member used to carry vertical load, shear
load and sometime horizontal load.
Beam type
There are two types of RCC beam, Singly reinforced beam and doubly
reinforced beam.
Singly reinforced beam
If the factored moment (Mu) is less than the limiting moment
( Mulim ) then the beam is designed as a singly reinforced beam.
( Mu<Mulim )
We mostly use the singly reinforced beam in the building if the stresses
are less.
The bottom reinforcements are designed to resist the tensile load.
Top reinforcements are also provided in a singly reinforced beam but it
is designed to hold the stirrups in position and not designed to be
carried the compression load.
4. Doubly reinforced beam
When the factored moment (Mu) is greater than the limiting
moment (Mulim) then the beam is designed as a doubly reinforced beam.
(Mu > Mulim)
The bottom reinforcements are designed to resist the tensile load and top
reinforcements are designed to resist the compressive load.
The doubly reinforced beam is most suitable where there is a higher
chance of earthquake or stress reversal. also, if an increase in depth is
limited for the beam.
5. Neutral axis
Neutral axis separates the compression and tension zones in the beam. it
is denoted by xu. formula to find xu is following,
xu=0.87⋅fy⋅Ast0.36⋅fck⋅bxu=0.87⋅fy⋅Ast0.36⋅fck⋅b
To avoid the brittle failure of concrete, keep the maximum depth of
the neutral axis (xumax) always less than the neutral axis (xu).
xu ⊁ xumax
The value of xumax for different grade of steel can be obtained from
IS 456, p- 70 or SP. 16, p-9.
6. TYPES OF BEAM SECTION
Types of beam section
There are three types of beam section,
Balanced section
In the balanced section,
xu = xumax
Mu = Mulim
The strain in concrete and steel will reach their limiting values
simultaneously.
7. Under reinforced section
The steel will fail first with showing the warning if under reinforced
section is used in the beam. the failure called ductile failure.
Every designer prefers to design the section according to the under the
reinforced section.
xu < xumax
Mu < Mulim
Over reinforced section
The concrete will fail first without showing any sign. the sudden
failure will occur if the over reinforced section is used. the failure will
be called brittle failure.
xu > xumax
Mu > Mulim
8. DETAILS PROCEDURE OF DESIGN OF
BEAM
Step 1: In the first step, calculate the intensity of the load which is
expected to act on the beam. This can be found out by adding the
transferrable loads from the slab to the beam, and the self-weight of the
beam. Also find out the clear span of the beam to be designed, from the
provided drawings.
Step 2: In the next step, find out the effective span of the beam (pg 34 of
IS456). In case of a simply supported beam, the effective span is found
out, should be the least of the following two values-
Clear span plus effective depth
Centre to center distance of the support.
9.
10. In the case of Cantilever Beam, the clear span(overhang portion) is mostly
adopted as the effective span to be used for the purpose of Design. After
finding out the effective span of the beam, find out the bending moment
and shear force, from the loads obtained through step 1.
Step 3: In this step, find out the trial dimensions of the beam. In the case of a
simply supported beam, the trial depth is taken as l/12 to l/15, where l is the
effective span of the beam. The breadth of the beam taken as is half the depth
of the beam.
Step 4: Perform the Depth check step. The depth check formulae provide the
minimum required depth of that beam and can be found out from any Design
book. The provided depth should always be equal to or greater than minimum
depth obtained. If not, the section should be redesigned by using different
span to depth ratios.
11. Step 5: Calculate the amount of reinforcement required. As the section
Designed should be an under reinforced one, so that formulae required for
under reinforced section should be adopted. After putting the required
value in the formulae, a quadratic equation is going to be formed, which
when solved, provides the amount of reinforcement used, depending upon
the bending moment and the dimensions of the beam.
After finding out the amount of reinforcement used, it is then checked
against the minimum reinforcement required for the section. It is also
checked against the maximum reinforcement that should be used, which is
generally 4% of the total cross-sectional area of the beam. If it does satisfy
against this two of it, the section should be redesigned.
Step 6: In the next step, calculate the cross-sectional area of a single steel
bar, that is going to be provided in the beam as per their diameter. Then by
dividing the amount of reinforcement used obtained in the previous step,
by the cross-sectional area of a single bar, the number of the bars required
for bending can be found out easily. The design for bending is completed
12.
13.
14.
15. Step 7: The shear design starts. At the beginning of this step, find out the
nominal shear stress and permissible shear strength depending upon the
dimensions, and the percentage of tensile reinforcement. If the nominal
shear strength exceeds the permissible shear stress, shear reinforcement is
to be designed. It is also verified that the nominal shear stress should not
exceed the maximum shear strength, either the section is redesigned.
Step 8: As per shear reinforcement formulae, the spacing of shear
reinforcement is found out. The obtained spacing should not be more
than—
0.75d, where “d” is the depth of the section
300mm.
It is also checked against the minimum spacing required.
16. Step 9: The Serviceability check is done. The Serviceability check
includes, check for deflection and cracking (pg 37 of IS 456). The
development length (pg 42 of IS4546) is also found out from the given
formulae.
Step 10: This is the last step of the Complete Design process, in which,
detailed design data are provided and a cross-section of the beam showing
the reinforcement detailing is also provided.