One way slab and two way slab- Difference between
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Get PPT here https://civilinsider.com/difference-between-one-way-slab-and-two-way-slab/ What is a Slab? Slabs are the one of the most widely used structural elements whose depth is considerably smaller than rest of the dimensions. Basically slabs are used as roofs and floors in buildings, roof and bottom on water tanks, on bridges etc. Slabs support and transfer load i.e. Dead load and live load, to columns by shear, flexure, and torsion. Slabs also help in reducing the effects of lateral wind loads and earthquake loads. What is One Way Slab? One way slabs are the slabs in which most of the loads are carried on the shorter span. The ratio of longer span to shorter span is equal to or greater than two or when the slab is supported by beams only along two opposite sides slab then the slab behaves as a One-way slab. What is Two Way Slab? Two-way slabs are the slabs in which loads are carried on both of the spans. The ratio of longer span to shorter span is less than two and when the slab is supported by beams along all the sides then the slab behaves as a two-way slab. Difference Between One Way Slab and Two Way Slab
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Project report on beams
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Types of loads, beams, support and support reaction calculation
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Onewayslab
This document provides information on the design of reinforced concrete slabs. It discusses slab classification, analysis methods, general design guidelines, behavior of one-way and two-way slabs, continuity, and detailing requirements. Two example problems are included to illustrate the design of a simply supported one-way slab and a monolithic two-way restrained slab.
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5. TPES AND DESIGN OF FOOTING in rcc.pptx
Design of concrete structures governs the performance of concrete structures.
Well designed and detailed concrete structure will show less deterioration in comparison with poorly designed and detailed concrete, in the similar condition.
The beam-column joints are particularly prone to defective concrete, if detailing and placing of reinforcement is not done properly.
Inadequate concrete cover may lead to carbonation depth reaching up to the reinforcement, thus, increasing the risk of corrosion of the reinforcement.
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Types Of Beams, Supports & Loads by Mr. K.Satish Poojith Reddy
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Types of loads, beams, support and support reaction calculation
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Tests of cement infographic
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If Cement satisfies all the field tests then it indicates that Cement is not bad for Construction but it also doesn’t show that Cement is really good for Mass work. For using Cement in big and massive works it is dependent on the part of the user to test the cement in the laboratory to …
Limit state, working stress, ultimate load method - Detailed Concept
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https://civilinsider.com/design-philosophies-of-rcc-structure/
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Various design philosophies have been invented in the different parts of the world to design RCC structures. In 1900 theory by Coignet and Tedesco was accepted and codified as Working Stress Method. The Working Stress Method was in use for several years until the revision of IS 456 in 2000.
What are the Various Design Philosophies?
Working Stress Method
limit state method
ultimate load method
#civil insider
WSM and LSM in RCC
Get PPT here
What is Working Stress Method of Design?
In the working stress design method for Reinforced Concrete Structures design, concrete is assumed as elastic also concrete and steel act together as a single unit elastically i.e relationship between stress and strain is linear.
WSM and LSM steel structures
Get PPT here
What is the WSM method?
In the working stress method, the stress-strain curve is assumed to be linear to the yield stress. To overcome the problems and damages due to uncertainty in design, permissible stress is kept as a fraction of the yield stress. As factor of safety is the ratio of yield stress to working stress, the members of the structure are sized to keep stresses within the permissible value.
The working stress method is the oldest systematic analytical design method. Although IS 800-2007 gives more details and preferences to limit state method, it also permits the use of the working stress method wherever the limit state method is not practically adaptable.
In Limit State Method, structure should be able to carry and withstand all the loads which will act on it throughout its life. Structure should not suffer total collapse under any kind of accidental loads such as explosions.
Field tests on cement- how and why.
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Construction materials testing is a process that helps engineers, contractors, and owners to list out problems and deficiencies in materials before actual construction. Field testing help to find out whether the materials are suitable for construction or not by just simple visual and easy practical tests.
Why to Test Cement on Site?
Testing of Cement on the site is done using some quality tests to get an overview of cement in a short period of time. It’s impossible to carry out Laboratory tests in a short period of time and for a small or medium-scale work so some field tests are carried out to check the quality of cement. These tests give an overview of the quality of cement.
What are the common tests performed on cement?
Cement Testing can be done by two types
A) Field Testing
B) Lab Testing
Further, Field Tests Classified as
1 | Colour
2 | Lump Test
3 | Smoothness Test
4 | Temperature Test
5 | Float Test
6 | Setting Test
7 | StrengthTest
8 | Date of Manufacturing
00:20 Introduction to Field Tests on Cement
00:30 Why to test cement on field
00:40 What are the tests conducted on cement
00:50 Colour tests
01:00 Lump test
01:10 Smoothness Test
01:20 Temperature Test
01:30 Float Test
01:40 Setting Test
01:50 Strength Test
01:60 Smell Test
01:70 Date of Manufacturing
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Tests of cement- Lab tests
Get PPT here
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If Cement satisfies all the field tests then it indicates that Cement is not bad for Construction but it also doesn’t show that Cement is really good for Mass work. For using Cement in big and massive works it is dependent on the part of the user to test the cement in the laboratory to confirm the requirements of the Indian Standard specifications respect to its physical and chemical properties.
All the Tests on Cement mentioned here have their own importance. These Cement Tests examines all properties and overall performance of Cement.
Timelapse
00:00 7 Must-Have Tests on Cement
00:20 Introduction
00:30 Purposes of Testing of Cement
00:40 Tests conducted for Cement
00:50 Fineness Test on cement
01:00 Standard Consistency Test
01:10 Setting time test
01:20 Compressive Strength Test
01:30 Soundness test
01:40 Heat of Hydration test
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How to determine compressive strength of cement?
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The compressive strength of hardened cement is the most important of all the properties. Therefore, it is not surprising that the cement is always tested for its strength at the laboratory before the cement is used in important works.
Why the compressive strength test of Cement is important? Compressive Strength Test on Cement mortar is calculated to find out whether the Cement conforms IS specifications or not and whether it can develop required strength or not when used in Concrete.
Any kind of strength testings are not done directly on Cement itself because of properties like shrinkage and cracking. So Compressive strength test on Cement either done in the form of mortar or concrete. In this article, we will take a look at the compressive strength test of cement mortar using standard sand conforming to IS 650-1991.
How to determine Initial and Final Setting Time of Cement?
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https://civilinsider.com/initial-and-final-setting-time-of-cement/
During Construction using concrete, cement paste, mortar certain time is required for mixing, transportation, placing, compacting and finishing. During this time concrete, mortar, cement paste should be in plastic condition and should not harden and it is mandatory that one should use the concrete before it starts to loose its plasticity. So How should someone know how long is concrete workable? and How much travel time is permitted for concrete?
Well its Setting time that tells us how long concrete is going to be workable. Now the question is What is Setting Time of Cement?
How to determine Soundness of cement?
What is the Soundness of Cement?
What is mean by soundness of cement? This is what soundness definition in civil engineering says “The ability of cement to resist the expansion and retain its original volume is called Soundness of Cement.” This indicates that a perfectly sound cement will undergo minimum volume change.
What is the soundness test?
The soundness test measures the change in volume due to expansion. This expansion should not exceed 10 mm for OPC, rapid hardening cement and low heat Portland cements. If the expansion goes more than 10 mm on testing, the cement is said to be unsound.
The soundness test can be conducted by Le-chatelier method and Autoclave Method. Le-chatelier test detects unsoundness due to free lime only.
#soundnesstestsoncement #cement #civilinsider
How to determine Standard consistency of cement?
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https://civilinsider.com/standard-consistency-test-on-cement/
What is Consistency of Cement?
Consistency of Cement is amount of water required to initiate the chemical reaction between cement and water to make the uniform cement paste.
Define Standard Consistency of Cement?
Standard Consistency of Cement is defined as Consistency which will permit Vicat plunger with 10mm diameter and 50mm length to penetrate to a depth of 33-35mm from top of the mould.
Standard Consistency of Cement can also be defined as Consistency of cement which will permit Vicat plunger to penetrate to the point 5-7mm from the bottom of the mould.
Also Standard Consistency means the amount of water required to make Cement Paste Plastic.
Classification of Cement- ASTM Classification
This slide gives a detailed explanation of the ASTM classification of cement. Also, you can visit www.civilinsider.com for more details
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You can also visit https://civilinsider.com/ for a more detailed explanation.
Civil Engineering Journals in the World
For a more detailed explanation and links to the Civil Engineering Journals in India visit
https://civilinsider.com/civil-facts/top-civil-engineering-journals-in-india/
Here we've listed Civil Engineering Journals in India which might help you in your final year projects. This list of Civil Engineering Journals from India shows only a randomized handpicked list and not the rankings.
Hope you find the right one and if you do please let me know in the comments below.
Civil Engineering Journals in India
For more detailed explanation and links to the Civil Engineering Journals in India visit
https://civilinsider.com/civil-facts/top-civil-engineering-journals-in-india/
Here we've listed Civil Engineering Journals in India which might help you in your final year projects. This list of Civil Engineering Journals from India shows only a randomized handpicked list and not the rankings.
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One way slab and two way slab- Difference between
- 2. Table of Content What is a Slab? What is One Way Slab? Where is one way slab used? One way slab reinforcement details What is Two Way Slab? Where is two way slab used? Two-way slab reinforcement details Difference Between One Way Slab and Two Way Slab
- 3. What is a Slab?
- 4. What is One Way Slab? In easier worlds one way slab are spanned in shorter side means supported on the beams of longer side as shown in figure above. Because of much greater length, longer side i.e.longer beam, carries most of the loads compared to shorter side.
- 5. Where is one way slab used? Generally one way slabs are used where longer side is too longer than shorter side that is waranda's.
- 6. One way slab reinforcement details You can notice that alternate main reinforcement bars are bent-up near supports at a distance of 0.1L from support, as per Clause D-1.6 of code, to resist tension that can appear because of partial fixity of support.
- 7. One way slab reinforcement details
- 8. What is Two Way Slab? In two way slab as the floor load transferred in both directions, the flexural reinforcement has to be designed in both directions.
- 9. Where is two way slab used?
- 10. Two-way slab reinforcement details
- 11. Two way slab reinforcement details
- 12. Detailing of Torsional Reinforcement at Corners
- 13. One Way Slab Two Way Slab
- 14. One Way Slab Two Way Slab
- 15. One Way Slab Two Way Slab
- 16. One Way Slab Two Way Slab
- 17. One Way Slab Two Way Slab
- 18. One Way Slab Two Way Slab
- 19. One Way Slab Two Way Slab
- 20. Today's Quote “It’s not the load that breaks you down, it’s the way you carry it.” - Lou Holtz www.civilinsider.com
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